Best laptop battery

March 18, 2009

China’s cobalt acid lithium production line will be built at Gejiu

Filed under: Uncategorized — Tags: , , — besbat001 @ 9:21 pm

China’s cobalt acid lithium production line will be built at Gejiu

National high-tech industrialization demonstration projects an annual output of 800 tons of cobalt acid lithium production line, End of the year will be built at Gejiu City, Yunnan Province, will fill our country in the lithium-ion battery materials industry gaps.

Old saint ratio and Technology Co., Ltd. R & D investment of the project, with independent intellectual property rights, product Specifications General has reached the international level, can replace imported products Lithium cobalt. Project when completed, to achieve sales of 2 billion yuan, profits and taxes 60 million yuan. Previously, the company has conducted small-scale production of finished products and major domestic manufacturers of lithium batteries formed a supply agreement.

Lithium cobalt are portable laptop such as electrical, mobile phones, cameras and other widely used lithium-ion battery materials, higher prices, hundreds of thousands of dollars per ton, for a long time all of our country to rely on imports. In 2002, domestic demand for cobalt acid lithium Tatsu 2500 tons, is expected to 2 to 3 years to reach more than 5000 tons, the market prospect is extremely broad.

Battery power of new technologies to promote the project to start

A China Environmental Protection Foundation, the battery power of new technologies to promote the project to start in Beijing recently. Central Committee, director of the National People’s Congress funded Qu, State Environmental Protection Administration, the relevant leaders and industry experts attended the launching ceremony.

China Environmental Protection Foundation in organizing the event, that is, in order to guide environmental management and waste battery recycling and disposal technologies deal with the development of standardized treatment of waste battery disposal and resource recovery technology market.

At the same time on the kick-off ceremony was held in Beijing Hechuan Technology Limited time donation ceremony. The company decided that a battery from each new energy-saving products “battery magic card” raised in the sale of 0.1 yuan donated to the China Environmental Protection Foundation to carry out the battery and environmental protection research and development, incentives, financing and other activities, plans to donate 5 years to reach three million yuan.

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China Environmental Protection Foundation

Filed under: Uncategorized — besbat001 @ 9:19 pm

China Environmental Protection Foundation to promote environmental protection battery of new technologies

China Environmental Protection Foundation, the battery power of new technologies to promote the project launching ceremony cum Beijing time Hechuan Technology Ltd. donation ceremony held this morning at the Great Hall of the People. The NPC Environmental and Resources Committee chairman, chairman of the Chinese Environmental Protection Foundation, Qu attended the ceremony and delivered a speech.

China Environmental Protection Foundation, the battery power of new technology projects, mainly for environmental pollution caused by used batteries, calling the green civilization-building, aimed at promoting more environmentally friendly energy-saving new materials, new energy sources have emerged to raise public awareness of environmental protection, and promote people with nature exist in harmony.

Central Committee, director of the National People’s Congress-funded members, chairman of the Chinese Environmental Protection Foundation at a ceremony on Qu pointed out: pollution and its management of used batteries in China are facing many environmental problems, we should abandon the “first pollution control, first damage re-restore “the old, and firmly establish the concept of sustainable development, and constantly enhance the awareness of population, resources and environment.

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March 15, 2009

Mercury-free alkaline manganese battery of technical issues that need to be resolved(c)

Filed under: Uncategorized — Tags: , , , , , , , , , , , , — besbat001 @ 10:22 pm

Mercury-free Process and Control

(1) to improve the electrical conductivity properties of zinc ointment
Mercury’s “wet” between zinc and zinc help with the collection of fluid connection between the (sticky) Then, to improve the conductivity of zinc ointment, so that the battery has a good anti-vibration performance. Go mercury batteries, the conductivity decreased significantly. Conductive paste to improve the performance of zinc from the use of high viscosity stability Thickening good zinc cream, zinc cream in an appropriate increase in the proportion of zinc in zinc paste and add a few other conductive material aspects.

(2) to control pollution in the production process
Mercury-free alkaline manganese battery production must be kept clean and pollution-free production environment of the production process. According to the battery industry experience, the general requirements for the production of wet conditions at constant temperature, the appropriate temperature of 20 ℃ ~ 28 ℃, humidity 30% ~ 60% (RH). Not suitable for negative electrode assembly assembly at low temperatures, the steel should not be coated graphite conductive at high humidity conditions. Entire production process to be clean, to prevent hydrogen evolution into making zinc impurities increase. Intermittent parts processing, many manual, fittings beyond the control of pollution, the quality can not be assured.

(3) control of carbonated
Effective control of the production process is the carbonation anode are mercury-free alkaline manganese batteries, one of important process measures. First of all, to control the concentration of CO2 in air, zinc ointment preparation conditions in a vacuum, the electrolyte, zinc paste, cathode powder must be sealed packaging, KOH, such as mercury-free zinc powder should minimize exposure to air time, packing damaged should put an end to the use and so on. Sealing process equipment and transfer the former track security guard shall add, to reduce air exchange to prevent the battery carbonated products. Batteries should also be noted that control online time, mercury-free battery production in exceptional circumstances the longest downtime in general may not be more than two hours. The reliability of domestic equipment relatively poor, prone to failure, equipment failure should be to prevent the contingency measures.

(4) the attention of Cu and ultra-fine zinc powder on the impact of mercury-free battery
At alkaline manganese battery copper cathode in the basic state to compound exist in the role of electric potential, the easy migration to the anode, the zinc anode batteries go because of mercury, has accelerated the relocation of ultrafine particles to the cathode, when the diaphragm tube defects have points when, Cu2 + and Zn deficiencies in point happened in the redox reaction, the formation of copper hydroxide crystal sticks gradually penetrate the membrane, forming a short circuit. The production process must be strictly controlled Cu pollution, mercury-free zinc powder in the ultrafine particles there should be restrictions to prevent the migration of zinc powder to form short-circuit the battery.

(5) is more suitable for studies of mercury-free battery capacity requirements and improve the new structure
Made alkaline manganese battery is still the current structure of Japan’s Fuji prevailing on the sealed form, because of mercury-free alkaline manganese batteries Analysis of gas increases, the reliability of such a structure is open to question. Des films with cathode assembly more conducive sealed nylon because of the consistency is better, mercury-free alkaline manganese batteries to consider the reliability of seals from polypropylene nylon than good, unfortunately the high cost of nylon ring. Europe and the United States structure of alkaline-manganese battery is worth drawing on our country, besides a reliable seal, the cell can make use of space has become larger and more conducive to the improvement of battery capacity.

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Mercury-free alkaline manganese battery of technical issues that need to be resolved(b)

Filed under: Uncategorized — Tags: , , , , , , , , , , , — besbat001 @ 10:03 pm

Equipment for the assembly of the main mold material there is bad, do not wear-resistant, dust pollution is serious and so on. Mechanical plant should be strengthened with metal materials research department collaboration, select the applicable cathode ring mold materials and heat treatment method.

Raw materials and spare parts

To promote mercury-free alkaline manganese battery, the process, it is necessary to down-to-earth manner, some base building. Mercury-free alkaline manganese batteries need to be dedicated to further improve the quality of EMD, in particular heavy metal impurities are no longer content to be reduced, but also improve the battery at high voltage potential and discharge capacity of the whole point of martial arts.

For alkaline manganese batteries graphite powder, a lot are processed by the squamous form of graphite, and graphite in squamous Fe, Cu and other elements with a high level. Without effective control measures and testing means, such graphite production of mercury-free batteries, can lead to major quality accidents.

China has not completely mercury-free zinc clearance from the selection of high-quality zinc starting material, but also must look at appropriate processing methods. Al with Ca in place of the In-Bi 1 Ca zinc alloy is more conducive to reduce the mercury-free alkaline manganese battery storage period of chronic short-circuit. Analysis selection depth of discharge gas on the low zinc dependent solution are mercury-free battery storage and resistance to leakage of important performance measures.

Alkaline manganese batteries divide need to further improve performance, improve density and uniformity, increase block. Korea provided technology divide winding spiral winding method, to meet the requirements for mercury-free, to recommend appropriate winding adjust the angle so that the effective increase in low-rise. Reduce the membrane thickness of paper to increase the winding layers, which is the international alkaline manganese battery industry is a tendency.

CMC, such as traditional zinc ointment Thickening the use of mercury-free zinc powder stability variation, can not meet the requirements of mercury-free battery. To enhance the mercury-free alkaline manganese batteries of anti-vibration performance and storage performance, the proposed selection of PA and PA 1 Na high viscosity, good stability of zinc paste thickener, and select the appropriate ratio, the performance of battery will be more the desired results. Alkaline manganese battery of standardized parts alkaline manganese batteries are mercury-free implementation of the basic conditions. Alkaline manganese battery set up some spare parts base, strengthen the quality control of parts of the alkaline manganese battery improve the quality of implementation of mercury-free alkaline manganese batteries is very important.

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Mercury-free alkaline manganese battery of technical issues that need to be resolved

Filed under: Uncategorized — Tags: , , , , , , , , , , , — besbat001 @ 10:02 pm

According to nine ministries and commissions such as the State Economic and Trade “about restrictions on mercury content in batteries provides that” the notification requirement, implementation of low alkaline manganese battery, mercury-free period has been entered of, therefore, to solve related technical problems, rule out the possibility of mercury-free process obstacles to become a top priority.

Mercury-free alkaline manganese battery of technical issues involved in the following areas:

Mechanical equipment and tooling mold
China’s industrialization late alkaline manganese batteries, mercury-free technology by the study because of equipment, spare parts and materials to such constraints is still in its infancy, especially for low, mercury-free alkaline manganese battery production of domestic machinery and equipment not yet sophisticated, the vast majority of plant is still used for intermittent production of equipment, spare parts processing, tooling mold has not yet considered mercury-free requirements.
     Anode preparation equipment is currently in use is still the largest pharmaceutical machinery, including the mixed powder, tablet or relief rolled article, into tablets, screening and preparation, such as zinc cream. Equipment exist the following main aspects:

(1) mold tooling, machinery and equipment did not attach importance to material corrosion resistance, stability and wear resistance, particularly in domestic equipment. Mixing barrels, roll, zinc cream containers, etc., etc. Although the use of high-grade stainless steel materials, it has still not reached the requirements for mercury-free, ordinary stainless steel corrosion, oxidation and wear resistance are inferior. Mercury-free alkaline manganese battery anode of Fe, Mo and other elements is 7 ~ 10 1 10 1 6 control, materials corrosion, electrochemical reaction and mechanical factors such as the anode is likely to result in more than the allowable values of impurity elements. Korea’s Rocket anode preparation equipment required to adapt to mercury-free and consider a more comprehensive, it is worth drawing on its inner wall mixing machine the wear-resistant non-metallic coating material, contact zinc cream containers full of machinery and the use of engineering plastics, completely avoid metal impurities mixed people.

(2) genuine low rate of serious cross-contamination. By the mixed powder to screen out qualified silt, general equipment into tablets in a 65% rate is only about 2 / 3 for the unqualified goods, required repeated at several machine cycle, this increase in cross-cathode powder pollution. While Europe and the United States of powder processing systems, its first rate into tablets of 65% ~ 80%, greatly reduces equipment wear and particles of cross-contamination.

(3) of the equipment Chuan (to) the use of moving parts of copper and other harmful metals. Mercury-free alkaline manganese batteries are particularly sensitive to copper cathode, copper cathode and other impurities mixed powder people are caused by chronic mercury-free battery short circuit potential.

(4) alkaline medium conditions, drying process easily lead carbonate powder cathode, and also prone to cross-contamination. High concentrations of lead carbonate are alkaline batteries climb one of the factors for mercury-free alkaline manganese batteries require higher concentrations of carbonate.

(5) anode current collector assembly also mainly depend on domestic add mechanical intermittent manual processing. On aspects of product quality by man-made factors, on the other hand, such processing can not meet the requirements for mercury-free. This is also the necessary machinery and equipment, one of the problems as soon as possible. Set nail and negative flow at the end of the welding method is also worthy of study, are currently widely used by DC energy storage explosion welding, this welding of copper is not easily lead to contamination collector assembly, are caused by mercury-free alkaline manganese batteries short-circuit an important risk of chronic . Import anode current collector assembly equipment required hundreds of thousands or even hundreds of million yuan, the battery should be attached great importance to the mechanical plant equipment, research and development, improve labor productivity is also an important aspect.

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March 12, 2009

Dynamic safety of lithium-ion battery cathode materials and design influence(d)

Filed under: Uncategorized — Tags: , , , , , , , , , — besbat001 @ 1:31 am

Only manufacturers are in the negative ratio, bonding agent types, divide the assembly, welding and a type of ear, package, through careful calculation and control, to make a film within a reasonable current distribution, polarization small battery, cooling Good and efficient security. For safety considerations, the driving force in the design of the battery would normally be taken into account when the abnormal situation occurs when the battery system to environmental heat transfer rate system can produce heat than the speed, because it determines the heat out of control in response to the probability . To further enhance the safety of battery power, many manufacturers will normally be the electrolyte in the battery to join the functional additives. These additives have been sufficient defense, anti-Expansion to improve the low temperature and the role of fire-retardant. It is worth mentioning that the flame retardant electrolyte add impetus to enhance the safety of the battery an important direction. Join the flame retardant is designed to increase the oxygen for combustion electrolyte. As we all know, when the oxygen index of more than 27 when a flame retardant material, the development of the flame retardants are close to or reach this target. The power battery electrolyte, the individual indexes for the development of the additive is not difficult, the difficulty of the electrolyte is to ensure that security at the same time we must take into account other conventional performance. Electrolyte balance for the function, multi-functional compound additives on the direction of R & D is. Essential to the protection board In order to strengthen the driving force for the safety of lithium-ion battery, battery protection board is bound with the equipment. In most cases, lithium protection board should have control of the use of lithium-ion battery conditions of work functions, these conditions include voltage, current and temperature. As the use of lithium-ion batteries are unique, making lithium-ion battery power to protect and support the use of panels together to ensure the safety and reliability of the system as a whole. More and more strings of batteries in matching assembly, in the process of long-term use is inevitable that there are individual differences, the protection board (or battery management system) to be responsible for the entire group of battery voltage, current and temperature, and even the capacity to monitor, we must Achieve the accuracy and prompt action can play a due role. At the same time, battery performance of individual differences in the same charge and discharge current, sections of the battery voltage and available capacity will be different, with the increase in the number of cycle, the battery performance differences will become increasingly significant, which will Greatly reduced performance of the entire battery life significantly shortened. For battery performance to reach or approach the level of single cells, each cell must be balanced so that the batteries within the single charge and discharge performance deteriorated due to reduce to the minimum extent. Most manufacturers have adopted a balanced protection of rechargeable lithium-ion batteries for maintenance. Therefore, the driving force for the safety of lithium-ion battery of factors, the electrode material is essential, to ensure that meet the current industry standard materials testing system only LiMn2O4 and lithium iron phosphate. Manufacturers generally use the safety and compatibility of good performance additives protect the electrolyte lithium-ion battery power to better use. In addition, lithium-ion protection board provides for the protection of the functions of lithium batteries, can maximize the protection of safe and reliable power battery use. Charge balance function of practical guarantee for the lithium-ion battery to power high-security long-life work. From the future trend, power lithium-ion batteries, boards and equipment for the protection of the three joint development is a scientific development.

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Dynamic safety of lithium-ion battery cathode materials and design influence(b)

Filed under: Uncategorized — Tags: , , , , , , , , , , , — besbat001 @ 1:30 am

On the data obtained at home and abroad, LiCoO2 used to power batteries of greater security risks, not generally as the motive power battery cathode materials; LiMn2O4 the use of more common; nickel and cobalt LiMn2O4 domestic use less, China Taiwan and Japan that some manufacturers use. Because manganese is rich in resources (in particular China, the world’s reserves of the third), low-cost, environmentally friendly, and LiMn2O4 a high-voltage discharge, the technology is mature, security, and other layered structure of the cathode material can not be compared High-rate charge and discharge capacity of the advantages and thus present in the promotion of lithium-powered batteries, LiMn2O4 has great advantages. Although relatively lower than capacity, but the larger battery is not in itself constitute a significant weakness. LiMn2O4 cathode materials for the lithium-ion batteries assembly has a good safety and thermal stability. However, there are also LiMn2O4 capacity fading fast (especially in high-temperature conditions), the short life cycle of the shortcomings that impedes the process of actually used. Nickel and cobalt LiMn2O4 material than are the advantages of high capacity, superior performance cycle. Made of lithium-ion battery has a very high energy density, suitable for severe restrictions on weight and volume but high-energy requirements of the field. As the use of the cobalt, nickel and other metals, nickel and cobalt prices LiMn2O4 after LiCoO2. However, nickel and cobalt manganese lithium-acid battery applications in force yet to be assessed on the domestic application of the material is usually the way through doping modified to improve its safety performance, but did not see the size of the application. Lithium iron phosphate rich source of raw materials, low prices, higher than the capacity and excellent high-temperature cycle performance and high safety performance advantages, is very dynamic development prospects of battery cathode materials. Lithium iron phosphate as a new type of battery cathode materials for use in recent years have warming trend. Since the patent restrictions, Europe and North America to mass production of lithium iron phosphate battery of small manufacturers, ibm ThinkPad X60 battery basically been monopolized by a few manufacturers. Although many domestic manufacturers of lithium-ion iron phosphate lithium battery research and development into production, but due to technical and system-level differences in product quality varied. Additives, electrolyte safety Lithium-ion battery power also affected the design of the ibm ThinkPad T42 battery of security.

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Dynamic safety of lithium-ion battery cathode materials and design influence(a)

Filed under: Uncategorized — Tags: , , , , , , , , — besbat001 @ 1:29 am

With lithium-ion battery technology continues to update and development of its light, high-capacity, long-life advantages gradually consumers of all ages. By phone market has expanded to cameras, model aircraft, toys, and other areas. In recent years, lithium-ion batteries in electric power Hardware Tools tools, backup power Regulators regulators, electric bicycles, light electric vehicles and other large equipment on the Application of a growing concern, and the equipment requirements of a large-capacity battery , High-power conditions.asus A3H battery can meet the high-security, high power, long life’s basic requirements, many experts and scholars on the important subject. Power lithium-ion batteries generally refers to security issues because of improper use of battery power, functional failure, accidents and abuse battery Guzhang leakage, temperature and pressure beyond the use of standard, or even the explosion and fire incidents, resulting in the user lives and property are threatened . One explosion and fire is the most serious safety incidents. Lithium-ion batteries abuse led to the fire explosion of internal reasons are very complicated, but most of them are caused by high temperature and pressure, and the causes of the two most can be summed up in the lithium-ion battery thermal runaway reaction, which is fever. These reactions are generally fever: the cell membrane electrode SEI decomposition, embedded lithium and the reaction solvent, the cathode material decomposition, and so on. Cathode material is the key advantage of the LiMn2O4 Lithium-ion battery power in the security issue, the electrode hp Presario V2000 battery in the cathode material is the key, but also trigger lithium-ion battery the main reason for potential safety problems. Seeking high energy density, high security, environmental protection, and the cheap power battery electrode material is the key to development. The current widespread use of the cathode material are LiCoO2, manganese lithium-acid, nickel and cobalt and manganese Lithium iron phosphate lithium.

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How to make my laptop battery last longer

Filed under: Uncategorized — Tags: , , , , , , , , , , , , , , , — besbat001 @ 1:24 am

Question:Hi,
I recently got a HP Entertainment PC laptop. I usually charge it for about an hour or so, but every time after I charge it, it seems like it dies right away. How long should the Laptop battery last? Am I or did I do anything wrong?
Thanks!

Answer:the apple battery  Life varies but it is normally about 2 to 3 hours. It also depends on what you are using the laptop for and how large the laptops LCD is. If the laptop is used for anything strenuous on power like playing cds/dvds/games while on battery power it will die much faster.  PowerBook G4  life is meant for light things like web surfing and word processing so naturally, the computer will die faster if it’s parts are being used more heavily. Especially if it is being used to power any USB devices or the CD drive. The only way to extend the life is by getting a special extended life  A1148 battery which you are still only looking at 4 hours max battery life.

Question:I have a medion laptop and its Laptop battery saves power for 1 hour when it is completely charged. How can I increase its power saving capacity?

Answer:Turn WiFi off when it is unneccesary. Lower screen brightness. Turn the sound off. Take out USB drives etc when not in use and choose a power setting to save IBM battery . That should bring you up to 2.5 or 3 hours. If not you should just get a bigger ThinkPad T43 battery that is compatible with your laptop.

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March 4, 2009

How notebook battery explosion-proof(c)

Filed under: Uncategorized — Tags: , , , , , , , , — besbat001 @ 2:34 am

The use of lithium battery on the protection of security. To this end, O2 Micro in power management for portable devices developed by Cool Charge solutions, the integration of a project called Cool Battery Technology battery protection technology, which is the main feature of a traditional general Chargers do not have OVP (over Voltage Protection) and OCP (Over Current Protection) function to protect the two battery, the technology has been Cool Charge IC chip embedded in them. Cool Charge IC chip used, the power charger to a large extent, take on the responsibility to protect the battery. Cool Charge IC subject to the control of the charger in comparison with the traditional design (see Figure 1), needed to significantly reduce the external device and eliminate the need for Q3 and Q4 part of the design, reducing the failure rate. Preserved in the Q1 and Q2 (to improve the original design of components) between, Cool Charge IC set up a detection point, the factory settings, the Detection of point voltage and current settings are slightly smaller than the battery manufacturers to set safety requirements.

In this way, in charge voltage or current beyond the Cool Charge IC set up security after the voltage or current value, IC control Q2 off, the first battery Protective effect before the cut off charge; from the frequency of detection, protection, detection of battery time for the millisecond level, and through the chip to detect, you can easily achieve the level of seconds per million, can be very high The frequency of detection in a row, thus realizing the first step in the protection of the battery pack.

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