Toshiba announced December 29 in the unstable supply of electricity, more power in Indonesia, Thailand and other Southeast Asian countries for sale 6 built-in battery, power outages can also watch TV “Power Television PC1″, intended by the input to local market needs to expand sales.
Foreign media reported that the TV can automatically switch to battery power supply mode, can be maintained up to 2 hours. 24-inch price of about 290 U.S. dollars, 32 inches about 400 U.S. dollars. This is said for the average consumer of the world’s first battery built-in LCD TV.
Toshiba Managing Director of Arcturus is out, said a press conference in Tokyo, Southeast Asia, the former “is the producer, it is of consumption, is very potential market.”
Toshiba will be available at 3D images corresponding to high-definition television, etc., and in 2011 the year in the 6 countries to double market share increased to 20%.
Archive for November, 2010
From the iPhone to create a full touch screen phone has a large, major mobile phone manufacturers are following suit. Now, iPhone will usher in the next year the 5th generation of products, and high frequency, large touch screen mobile phone has become the mainstream. However, with mobile phones increase in power consumption processor and screen, cell phone battery does not seem to keep up with the pace of technological progress, still only remain in the capacity to change the size of the stage. Mobile phone case, laptop versa, or even just appear near the Tablet PC also started to face this dilemma. Mobile Internet era, the battery seems to be the user heart “eternal pain” and a stumbling block to the development of mobile Internet terminal.
Breakthrough in lithium battery technology has been difficult
The smart phone market competition is more intense, more powerful mobile phones, more and more configuration, but there are still some bottlenecks restricting the development of mobile phone technology, battery technology is one of the most important aspects.
Nokia Research Center, Henry Terry said in an interview in the near future, before the phone’s basic function is to voice and information, so before the power management on the mobile phone study focuses on two aspects of optimization. But in the past two years, with the rapid development of mobile phone technology, the emergence of faster, more processor power consumption and larger and brighter screens, and a large number of applications need to connect to the Internet, which also takes a lot of power. In front of this trend, mobile phone battery research has not kept pace, due to the limited size and taking into account safety factors, the current lithium batteries used in mobile phones is difficult to have much to enhance the capacity, mobile phone manufacturers and battery manufacturers are working on new battery technologies, including the use of solar energy, kinetic energy and so on. But now these technologies have no real breakthrough is not yet widely used. In addition, the smart phone battery to make a breakthrough but also involves a lot of technology, but these technologies are linked together, each technology must wait for the other related technologies.
Henry Terry believes that the ideal smart phone battery charge state is able to use about once a week, but now many high-end large-screen smartphone was less than eight hours of continuous use. To experience a few years, breakthroughs in related technologies, the smart phone’s battery life is possible to achieve the “ideal” level.
The embarrassment of existing assistive technology
In fact, mobile phones and other terminal equipment in order to provide sufficient energy, manufacturers are racking their brains, the introduction of the approach is also a new guise. Such as a mobile phone shell mobile phone manufacturers to design a piece of thin film solar cells, if the phone battery runs out, so the sun for 30 minutes, you can continue talking. As for how long can the official answer is about a minute. Perhaps this approach really is the vendor of last resort, the sun of nothing, much less talk and more come with a battery of touch. Handset manufacturers may not solve the problem, peripheral manufacturers can always simplify: a brand for mobile phones, notebooks and other end-launched “with a rechargeable battery charging” solution. The few pieces of lithium batteries combine into a huge battery, coupled with the interface of several main terminal to form a “wildcard” back-up battery, cell phone, laptop battery run out of itself, can be connected to the battery to continue use.
In addition to the battery to find ways, there are other companies moving from the idea of mobile phones such as power management, power-saving mode in the product increases, the introduction of a relatively small screen, power consumption and so on. But the practical effect of these methods is not good. Users are rarely willing to end their power-saving mode to switch to, because that would be associated with lower screen brightness, not to use certain features such problems, thereby affecting the experience of using the product.
Support the “ideal” state of the cornerstones of
Like Henry, as Terry said, the current application in mobile phones and other mobile terminals of the battery, its capacity has been difficult to have a qualitative breakthrough, only a “volume Huan capacity” of the strategy to improve standby time. Manufacturers are faced with this situation, only in a limited space, make use of larger batteries. Such as Samsung will soon be in the domestic market Galaxy Tab Tablet PC, in order to ensure the standby time, a huge battery is almost occupied nearly half of the space inside the machine.
In order to give their products a better user experience, almost all mobile phones, PC makers are studying how it can not increase volume, will give your battery more energy. Although the direction of the various manufacturers are different, but there is a consensus that fuel cells will be the best alternative to current lithium batteries. The so-called fuel cells, is a chemical reaction to produce fuel for power devices, the most common fuel is hydrogen fuel cells, this battery is equivalent to a small power plant, the energy generated by chemical reactions such as the terminal for a mobile phone electricity. Because technology is too complicated, too expensive, in the past few years, HP, Nokia, Panasonic, Hitachi, NEC and many other manufacturers have shown off their fuel cell products, but the delay can not be commercial. Nevertheless, there is still the industry report, energy consumption for the automotive and other large tools is estimated the introduction of fuel cells have to wait for several years, but for laptops, PDA and mobile phones and other products, the introduction of fuel cells is not far away.
Currently, almost all of the vendors that the energy density fuel cell has the advantages of lithium batteries can not be compared, regardless of quality or volume energy density energy density lithium batteries are more than 10 times, while the fuel cell in the technologically has been improved, the final one day replace the lithium batteries in mobile phones as mobile phones support the “ideal” state of the cornerstone.
Benefit from the concept of lithium-ion battery, Fosu share (000973) widely popular these days, but seems determined to insist Fosu share lithium-ion batteries are not promoted. Announcement today, the Board passed a motion to the subsidiary optical Foshan Jin Hui Hi-Tech Material Co., Ltd. increase and expansion projects lithium-ion battery separator additional 14.1 million yuan investment.
Notice that the lithium-ion battery separator Jinhui Tech had a total investment of 105 million yuan project. The project has entered the infrastructure construction. To improve the level of equipment, equipment and production technology, improve the infrastructure facilities of the project’s environmental and fire safety public works standards, Jinhui company intends to invest an additional 14.1 million yuan of these projects, all additional investment in fixed assets investment. New capital investment, total investment is 119,100,000 yuan. Working capital unchanged at 17 million yuan. The additional investment of 14.1 million yuan from the company to resolve self Jinhui.
Fosu share said the project is completed, Jinhui company expects to add production capacity of lithium-ion battery separator 45 million square meters (about 542 tons), is put into an estimated annual sales income of 229.03 million yuan, profit after tax of 62.5 million yuan, Compared with the additional investment will not occur before the major changes in economic efficiency.
Xiao Hui, an analyst at Huatai Securities and other joint in the research report released in October that the difficulty lies in lithium battery pore membrane production engineering and matrix materials, thin film technology and equipment requirements of high tension. Technology and equipment are subject to tight blockade of foreign companies. Fosu share report is the evaluation of the leading film industry, film technology and ongoing research and development capabilities stretch belong to the leading domestic level. In the lithium battery industry, driven by the rapid development of the diaphragm industry will be able to maintain high profitability. Holdings of the first investment grade rating given to Fosu share. Fosu share rose 204% last year, this year rose 99%, to close at 17.94 yuan yesterday.
Europe and the United States in recent years, subsidies for PV solar energy industry a direct trigger of the Rise. And from 2010 onwards, the main application of solar energy companies in Europe have quit or are gradually reducing subsidies ratio. This is an important market in Europe for the Chinese enterprises is a severe test.
July 1, 2010, the German photovoltaic systems and the roof and remove farm land facilities will be reduced by 13% subsidy, subsidy on conversion areas will be reduced by 8%, other regions will be reduced by 12%. From October 1 this year began, the total subsidy to further reduce the 3%.
August, Spain plans to reduce solar electricity price increase of 45% of large rooftop solar photovoltaic installations electricity price will fall 25%, a small decrease of 5%.
September, the Czech Republic introduced the policy that in March next year, built in the solar power plant on agricultural land will no longer receive government subsidies, is expected to reduce 700 megawatts of solar power investment.
The same month, Italy on December 31 decided to start cutting subsidies for solar photovoltaic projects.
October, foreign media said the British government will be substantially reduced public expenditure, of which the solar grant one of them.
To follow the footsteps of Germany, the next few years, Europe will experience the first high demand and low market volatility. PV of each country in order to catch the last bus subsidies, to improve short-term orders and capacity release can be expected. But in the long run, the first half of accumulated depreciation of the euro against the yuan by 20% and the uncertainty of industrial subsidies have increased the burden on the export of domestic PV. Domestic and industrial subsidies to balance the interests of coordination of financial expenditure, external means, as the game between countries. In Spain, for example, financial pressures forced the government cut subsidies for solar power generation, the installed capacity in Spain from 2008 2600MWp, straight down to the 2009 70MWp.
United States, as one of the most abundant light, although the development of photovoltaic industry than Japan, Germany, much later, but the market potential is huge. To this end, July 21, 2010, the U.S. Senate Energy Committee voted to pass the “kilowatt roof plan,” from 2012 to 2021 invested more than 50 billion dollars.
It can be said, governments of policies for the photovoltaic industry have both good bad. Domestic PV market participants should be actively concerned about the export of China’s energy planning and various types of photovoltaic power generation project plan, but also time to understand the main foreign market for PV modules change the importing country.
Combine hands on some machines, four-wheel tractors and other agricultural vehicles after the closure of about improper maintenance batteries, battery resulting in cold and difficult to repair or scrapped. Therefore, enter the winter, the battery should take the following conservation measures:
Greenhouse elevated storage battery when not in the house on the preservation of more than 0 ℃, should not be placed directly on the ground. External storage batteries before the first wash, add a little electrolyte, fully charged and tighten the drain plug. Once every other month after the additional charge, once every two weeks check the electrolyte fluid level, low added immediately. This can protect the battery safety through the winter.
Improve the ratio of liquid electrolyte composed of water and sulfuric acid, the higher the content of sulfuric acid in the electrolyte, the higher the proportion of the electrolyte, the lower the temperature of electrolyte freezing. To this end, throughout the winter minimum temperature according to the local select the appropriate proportion of the electrolyte to prevent the electrolyte freezing.
Enough power to keep the state in the winter, when the battery discharge 50%, there is the risk of ice electrolyte. To this end, the winter discharge of the battery level does not allow more than 50%. In winter, we should always check the battery storage of electricity, lack of timely and should be added.
Raise the temperature of the electrolyte temperature electrolysis capacity of the battery a great impact on the environment temperature decreasing by 1 ℃, capacity reduction of about 1% – 2%. Therefore, to improve the temperature of the electrolyte, motorcycle parking should be indoors, or move the battery interior above 0 ℃.
Liquid water mixed with electrolyte batteries by adding distilled water should be mixed. If the time to mix well, floating in the electrolyte will freeze the top of the distilled water. Add distilled water this winter to the battery, immediately to its charge, or side of distilled water while charging, electrolyte and distilled water can quickly mixed, not frozen.
Start checking your system periodically should be checked regularly maintained. Adjustable voltage regulator, the charging voltage increased to 0.60V. Each time you start not allowed more than 3 – 5 seconds, a start not, and should be stopped 1 minute after the start. Start the long hours will damage the starter motor and battery.
Sanyo Electric on November 18, 2010 environmental technology for media briefings held in the “Green Technology Forum (Green Technology Forum)”, the company’s battery business were discussed. Sanyo Electric plans to solar cells, lithium-ion rechargeable consumer batteries, car batteries with rechargeable batteries and large for the four pillars of business, and strengthen the relevant initiatives.
That first introduced at the October 22 2010 open, producing hybrids (HEV) with a lithium-ion rechargeable battery, “Garcia green energy park.” Western Canada’s Green Energy Park is equipped with a 1MW solar power generation equipment, power generation equipment used to store imported electricity 1.5MWh lithium-ion rechargeable battery.
As decided in April 2011 became a wholly owned subsidiary of Matsushita, Sanyo’s Representative Director, Vice President of the mesenchymal to the future business strategy described as follows. “Can make a contribution to the Panasonic Group’s business or the energy business. In promoting systematic large-scale battery business, while also further reduce the product size, lower cost.” The company expects 2020 for system stabilization and UPS (uninterruptible power supply), and residential and commercial uses and other large battery set-business market will reach 2 trillion yen.
Panasonic is expected to occur with repeated product applications for mass production of notebook computers, the diameter of 18mm × 65mm length of the “18650″ cylindrical battery cell. Production of the two companies regarding the 18650 battery cell, the room that “This will enable the Matsushita Group has a program to provide customers with more means.”
In addition, the Inter-confidence, “said Sanyo Electric produced only plug-in hybrids (PHEV) and electric vehicles with (EV) battery with 20Ah-level square. Automakers hope to have a variety of options, therefore, in addition to 18650 unit module , it can also increase the product range to meet user requirements. ” The room also announced that Sanyo Electric will be 6 to 7 car manufacturers to provide the company developed lithium-ion rechargeable battery.
Currently, the energy crisis and the whole community is very concerned about environmental issues. Solid oxide fuel cell technology to optimize the energy structure and reducing environmental pollution and promote the development of related high-tech industries, etc. have a positive impact. Professor Sun Kening by the University research team to complete the “intermediate temperature solid oxide fuel cell integrated research and development” project in fuel cell research breakthrough, in the Heilongjiang Provincial Science and Technology has organized the results of identification, the Panel finds that the project developed independently The “cast a total of sintering technology” to achieve our country in a large area of solid oxide fuel cell batteries substrate prepared core technology breakthroughs, single battery power and power density, etc. technology has reached the international advanced level. Solid oxide fuel cell electrochemical reaction by the chemical energy of fuel directly into electrical energy electrochemical devices, known as fourth-generation fuel cells. Compared with traditional heat engines, solid oxide fuel cells with energy conversion efficiency (up to 50% -80%), and wide applicability of fuel (hydrogen, carbon monoxide, ammonia, natural gas and other hydrocarbon fuels), environmental pollution , all solid state, modular, low cost, energy saving and other advantages, power efficiency up to 60%, for combined heat and power efficiency of up to 80% after. According to Sun Kening team members, at present, restricting the development of fuel cells is the major bottleneck in cost and service life, reducing battery costs and improve battery life is the key. Sun Kening team designed and developed the composite electrode structure and the gradient electrodes were successfully prepared high-performance composite cathode, increasing the length of three-phase interface, which greatly reduce the performance loss caused by mutations in the interface; construct a new solid oxide anti-coking fuel cell anode materials; development of the “cast a total of sintering technology” has the process simple, low cost, low power consumption and ease of mass production and so on; by “casting method a total of sintering,” assembled a single dimension 100mm × 100mm body cells, while the previous generation above 1000 ℃ ambient temperature can be reduced to 750 ℃, avoid the attenuation of the electrode lead to faster sintering, electrode and electrolyte interface reaction, the battery component does not match the thermal expansion properties, metal corrosion are common problems connected . The corresponding results were published in international journals, “Electrochemical Communication”, “Electrochemical Technology”, “Power” and other magazines, and authorized the national patent 5. Solid oxide fuel cell can be applied to stationary power plants, distributed power, mobile power generation systems, electronic products, the prospects are very bright.
* Suntech Power plans to the U.S. solar cell plant capacity doubled to 300MW
* Polysilicon prices little effect on the company, the cost of silicon lock standing orders
* U.S. survey of 301 energy industry Huaqing Jie little real impact
Of Li Ran
Reuters, Beijing, November 22 – —- World’s second largest manufacturer of solar cells – Suntech Power (STP.N: Quote) Gong, director of project development into the school, said the United States early in October Suntech solar cell production plant Planning in the “near future” or the production capacity from current 150MW (megawatts) doubled to 300MW.
He told Reuters in an interview on Friday and said the current price of polysilicon little effect on Suntech Power for its long-term supply of silicon materials order price is relatively stable; while the U.S. clean energy policy for China launched 301 investigations, of Suntech power and even the actual impact of the industry or not.
“The future exchange rates and international trade, policies that affect our international markets will be an important factor in the production of forward team and also to respond more quickly and meet market demand.” He talked about Suntech opened in Arizona The factory said.
Suntech Power last week said it has surpassed the United States SunPower (SPWRA.O: Quote) to become North America’s largest supplier of solar cells. The U.S. market, although much smaller than the global PV superpower – in Germany, but is expected to New installed capacity of solar power coming into the leading countries.
Suntech announced third quarter results last week, its quarter net income of 3,310 million U.S. dollars, per unit of American Depositary Hop (ADS) surplus of $ 0.18, less than market expectations, rising costs for its silicon sales prices.
The current global PV industry, the rapid expansion of production capacity, has caused analysts to caution. Last week Credit Suisse downgraded the U.S. PV industry to “consistent with the broader market” means there is an oversupply of its suspected.
UBS (UBS, 16.64, -0.78%) to Suntech by the $ 13 price target cut to $ 12, as Buy; Jefferies its target price from $ 11 to $ 10 lower, rating for the holding; Susquehanna is to a neutral rating.
Suntech Power rose 0.81% on Friday, at $ 7.48; but the whole week down 11.7% in total.
** Cost of silicon long single lock **
Gong Xue-Jin said Suntech’s silicon supply locked single price slightly higher than the long 50 U.S. dollars per kilogram, “which makes us less vulnerable to short-term fluctuations in supply and demand.” According to its introduction, Suntech Power is currently working with an international silicon material supplies enter into an 10-year long-term orders, but delivery will be phased according to market adjustments.
After the price of polysilicon in 2008 about 500 U.S. dollars / kg of record highs this year after the first half fell to lows around 50 U.S. dollars, and then pick up as the world PV industry, polysilicon prices soaring, is still per kg hovering around 100 dollars.
Unlike China’s Yingli Green Energy (YGE, 11.14, +3.82%) Holdings (YGE.N: Quote) and other from the start to take the vertical integration chain of solar companies, Suntech main focus is still on the battery, components and systems and other downstream areas, the most upstream part of the silicon material only in Qinghai Province, China to set up a production capacity of 3,000 tons of polysilicon plant.
And Suntech Power last week announced plans to spend about 127 million U.S. dollars in China reached a total of 375MW M a polysilicon ingots and slices 100% stake in production and fourth quarter can be put into operation after the merger. Ingots and slice is connected to the upstream material preparation and downstream silicon solar cell manufacturing the intermediate links.
Sun King “Suntech drying out the third quarter report card. Depicts a line chart quarterly exchange gains and losses, the third quarter, $ 42,020,000 of foreign exchange earnings and in the second quarter foreign exchange loss of $ 61,400,000, and its outline is almost the folder into a trend line a right angle.
Also 17, China. Letter authored by the China Chamber of International Commerce Folk “complaint” was referred to the hands of the U.S. Trade Representative. The letter of protest against what the U.S. policy of Chinese government provoked a series of clean energy, “301 investigation cases.” For China’s new energy in the products mentioned on the strong logic of tax before the International Chamber of Commerce may only be the straw that PV companies.
Whether the exchange rate “roller coaster” on the ups and downs, or trembling in the international environment, are revealed through the high dependence on exports has become a clamp obstacle to the development of China PV industry.
Difficult to take the exchange rate “Wire”
74% of net revenue from Europe, 9.5% from the United States and China account for only 0.1% of the layout of carrying such a market, Suntech has to face significant foreign exchange risk exposure. 2008 third quarter, due to the quagmire of deep financial crisis, until the first quarter of 2009, the euro continued to depreciate to Shangde Cheng foreign exchange losses by up to 9 months old.
This pressure, in January 2009 as a difficult operation, the company has also laid off 30% of the burst and the acquisition of news by peers. Data show that in 2009 only 33 shipments of 1,2 MW in January, less than the same period the previous year by nearly 1 / 3. The 2009 second quarter and third quarter of the short-term rebound, but also to be drawn into the cloud wave sly deceitful in the exchange rate situation.
To the fourth quarter of 2009, Suntech has changed suddenly pattern of exchange gains and losses from the original $ 10,500,000 of “income” to $ 13,200,000 “expenditure.” This is just pull off huge losses. In the first quarter, dragged down by the debt crisis in Europe, Suntech’s “Exchange of War” reached $ 24,540,000, is falling into the second quarter loss of $ 61,440,000 in the history of “freezing.” In fact, not just Suntech. May this year, the world largest PV 5 Qu Xiao-Hua Enterprise Artes CEO also told reporters that the company’s first quarter due to losses caused by an unexpected fall in the euro to reach 17 million -1800 million.
It is reported that the euro against the U.S. dollar exchange rate was 1:1.23, according to Barclays Capital estimated that, if reduced to 1:1.25, Canadian’s earnings fell 84% answered. Barclays also estimates involved in the exchange rate, Baoding Yingli profit will fall 42%, Suntech is down 79%.
Weak voice
The reason why exchange rate movements can greatly affect the company’s operating profit, because of domestic solar cell more than 90% of the products exported abroad, but as the largest exporter, the domestic photovoltaic business, it seems there is little international voice. The trade was aggressive form of the “301 investigation”, the enterprise is far more worried about too tough.
Recently, as the United States want to ease their financial pressure due to the weaving trade in the pretext of the application form thick 5800, accusing China of the so-called “unfair support” charges including export restrictions, discrimination against foreign firms, imports of goods requires technology transfer, subsidies and other domestic companies.
WTO arbitration results are not yet landed, the U.S. moves out of the smoke flavor was distributed to a very high export dependence photovoltaic business ahead. Jiangsu Canadian Solar Li Mao, head of market strategy, told reporters that the company is on the U.S. If you win the “lawsuit” will have much to assess damage. Zhejiang Chint Solar Anhui book Strategic Marketing, said Hu, the current results also difficult to predict, but certainly the release of a negative signal.
Chinese enterprises lack of confidence and fear may be the upstream solar cell materials “outages” relevant. “Our country imports 39% of silicon material from the United States, 18% from Europe, only 18% produced in China,” according to Li Mao analysis of upstream raw materials, the purchase price if the increase will result in component prices.
What is expansion of domestic demand?
Face “wall flower wall incense,” the status quo and want to open the domestic market demand, Chinese Academy of Sciences Research Center, Renewable Energy Ma Sheng Hung believes that we must improve the grid-connected photovoltaic systems. “Grid-connected photovoltaic systems in Europe and accounts for more than 95% of the key technical performance parameters of the equipment to meet power system requirements Although, it is still a lack of scale, market-oriented, experience in commercial operation.” In addition, PV has been through several tender “fishing expedition” and also need to determine the tariff.
China Renewable Energy Society, Vice Chairman Zhao Yuwen believes that the BIPV application market to expand domestic demand is another way. According to his calculations, the current availability of housing construction area of about 100 million square meters, of which 20% of the area if the installation of solar photovoltaic system will have 20 megawatts of rooftop photovoltaic resources. However, solar manufacturers veteran admitted to reporters, and real estate developers to talk about a balance of interests of the model will be difficult.
Many solar building energy-saving technology experts also stressed to reporters, the policy is to promote the integration of the constraints of the important barriers. It is reported that, despite national and industry department has issued a series of regulations and standards, but the solar energy utilization in the management system is still too fragmented system of incentives is not sound.
High priority in the global climate change and carbon reduction trend, renewable energy, electric cars, as well as the promotion of smart grid has become an international trend. Also led a variety of large-scale energy storage and power battery market. Battery materials in Japan, buttressed to Cell’s technology, the development of large energy storage quite positive. Provisioning status by 2009, the nearly 90% of the energy storage are set in Japan territory. Battery Japan in the exhibition, many manufacturers have exhibited a variety of large storage batteries. Also, in addition to large-scale energy storage, the paper will be referred to other new trends in technology and product applications.
METI for all kinds of batteries used in large-scale energy storage, point out the focus of future technological development. In addition, and add the “technical difficulty”, “charge and discharge rate”, “price” to further clarify the characteristics of various types of storage batteries. Provincial industrial economy in Japan related to batteries for large storage options, mainly nickel-metal hydride batteries, sodium sulfur batteries, lithium ion batteries, super capacitors. The actual deployment is currently the case to the highest proportion of sodium sulfur batteries, estimated in 2010, accounting for about 64% of the world, nearly 160MW of capacity deployment.
In addition, other cells have different characteristics, such as: have a price advantage of the nickel-metal hydride batteries, high-speed advantage of the super capacitor charge and discharge and so on. The lithium-ion battery, it is possible in the car battery under heavy use, pull the economy through low-cost access to large scale energy storage applications. In addition, in this exhibition, also found that some manufacturers began to use lithium-ion batteries for large storage. Overall, each type of battery have its own advantages and disadvantages, its characteristics must find a suitable energy storage applications.
(A) Shin-Kobe Electric (Shin-Kobe Electric Machinery Co.)
Shin-Kobe Electric, Hitachi Manufacturing Department is responsible for the production of industrial lithium battery division. The display by the large energy storage battery is more special, as shown in Fig’s LL-W type of large lead acid storage batteries. This module Besides general storage function, but also can be used to mitigate the wind generation system activated, the resulting system instability. Figure III shows the overall specifications of size 437 × 799 × 500 mm, voltage of 8V, the current up to 1500Ah, electric capacity of 12kWh, priced at 400,000 yen. The single group of about 2MW wind power generation, based on some of the electrical storage devices need 1.3MWh, it projected the overall LL-W module, about 432. And the Kuroshio current (Kuroshio) wind company, has actually set in five Kawahara Aomori City to match the total 16MW of wind power.
In addition, the Shin-Kobe Electric is also responsible for the storage of electrical energy on display in the battery module-LL (available for solar or wind) module and LL-S (for solar) modules, individual specifications as shown in Table I. Different from the LL-W-type module is configured to wind power or solar 99kW 100kW of power generation equipment, it will be paired with 584kWh energy storage battery, converted into the module takes about 292 LL1000, the overall battery energy storage equipment, build, nearly 6,000 million yen budget.
(B) ELIIY POWER
ELLIY POWER is in Japan, quite a large lithium-ion batteries are promising energy storage company. First by the Keio University in 2003 in a ELiica electric vehicle project initiated and nearly 30 companies one after another to join this project. Later in 2009, by Sharp, Daiwa House Industry, and other enterprises, raising 10.16 billion yen established and publicly listed. In the same year announced the establishment of lithium-iron battery technology will be used for family and other large storage needs of the factory. Which, by Sumitomo Osaka Cement (Sumitomo Osaka Cement Co., Ltd.) Lithium iron phosphate cathode material provided powder. The Sumitomo Osaka Cement, lithium iron phosphate in the promising prospects, will significantly expand production capacity in 2011, the lithium iron phosphate from the original 150 million tonnes, a substantial increase to 1,000 to 2,000 million tonnes.
Figure IV for the exhibition on display in the ELIIY POWER related to the large energy storage system. Figure IV on the right as the main battery module, containing four lithium batteries Cell. Module specifications for the 192 × 175 × 128 mm, weighing about 2kg, the energy density of 91 Wh / kg. Figure IV on the left of the EPSS 8kWh system requires 8 modules.
ELIIY POWER in 2010, will produce 200,000 lithium-iron battery Cell, mainly for large-scale energy storage. In addition, the lithium-iron battery energy storage module in the actual setting, the majority of co-operation with local government, set up in schools, local administrative agencies, other private enterprises to adopt the ratio is very low.
(C) MAXWELL
MAXWELL 3C and hand tools on display many of the lithium-associated module.
Of the most notable was undoubtedly used in large super capacitor energy storage module. This BMOD0063P125 module, due to the characteristics of high-speed charge and discharge. There are two application conditions. First, the general large-scale wind power generation and lifting equipment, this module can provide the required moment to launch a large current. Or is the current generated when the large number of power generation, this module can be a buffer device follow-up energy storage devices.
In general, single-group 2MW wind power generation equipment, requiring only a super capacitor module. This module, for example, contains 18 super-capacitor Cell, the overall module size, as shown in Figure Six, the size is 619 × 425 × 265 mm, voltage up to 750V, maximum current of 750A. But its price is quite high, about $ 405,000.
Large energy storage battery option is to go hybrid combinations
In general, large-scale renewable energy storage device and carry quite close. Operation of renewable energy, for energy storage devices, also have different functional requirements. To wind power, it can be divided into “instant activation” and “Hang Time Storage” in demand, as shown in Figure VII. The “instant activation” of the demand, the attention is the moment of charge and discharge energy storage devices and high security. And “Hang Time Storage” focus, it is stable and lower energy storage security requirements.
In the exhibition of large energy storage battery related to the process of inquiry can be found in the overall price gap is quite big. Therefore, large-scale energy storage can be expected in the future in the process of building. Will be a combination of hybrid batteries.
Currently speaking, the instantaneous charge and discharge efficiency, super capacitor or a first choice, but recent price of millions of NT dollars. May make renewable energy in a single device, equipped with only a super capacitor module. In addition, a recent topic of great car ternary cathode material of lithium batteries, in its performance under high efficiency may also be applied to the “instant activation” requirements.
Finally, in “constant when the energy storage” aspect, in the setting of limits, the energy requirements and battery performance, not as harsh automotive lithium batteries. At present, we find that firms tend to use less expensive battery types, such as lead-acid batteries, nickel metal hydride batteries and so on. The lithium-iron batteries, lithium batteries are hoping in the car driven by economies of scale, it can be priced lower, to apply to large-scale energy storage.
