A new battery: Lithium - air batteries

In addition, the industry has also been the other attempts, while still using an organic solvent, but different is a new composition to improve the energy density of batteries(lenovo battery). This is the lithium - air batteries. In this attempt, the Japanese Institute of Industrial Science and Technology and Japan Society for the Promotion has developed a new structure of lithium - air batteries.

Lithium - the concept of air batteries have long brought up. Because the positive use of oxygen in the air as the active material, so in theory the capacity of positive density is infinite, can increase the capacity. In addition, if the use of lithium metal anode, theoretical capacity than lithium-ion rechargeable battery(thinkpad t60 battery,thinkpad t61 battery) to improve a few.

However, lithium - air batteries, so far none popularity. The reason is that there is a fatal flaw, namely, reaction products of solid lithium oxide (Li2O) accumulate in the anode, so that the electrolyte had been cut off contact with the air, leading to discharge stops.
Made in Japan & Research Institute is divided into two kinds of electrolyte solution through this problem. In the negative (lithium) side of the use of organic electrolyte in the cathode (air) side of the use of water-based electrolyte. Set between the two electrolyte lithium-ion only through the solid electrolyte membrane, to divide them. This will prevent the electrolyte mixture, and to promote the battery react.

The negative use of lithium. Cathode is used in combination with the electrolyte containing organic lithium salt electrolyte. Although we can not abandon the organic solvent, but it limits the use. Water-based alkaline electrolyte cathode using water-soluble gel, and after the micro-based catalyst for the formation of oxides of carbon and low-cost combination of the positive.

In the cell, generated by the discharge reaction is not a solid Li2O, but easily dissolved in the aqueous electrolyte in the LiOH (lithium hydroxide). Therefore, the oxidation of lithium accumulation in the air after the electrode does not lead to work was stopped. In addition, water and nitrogen through the solid electrolyte and will not next door, so there is no place with a lithium metal anode reaction risk. Moreover, in charge, if the configuration-specific positive charge, but also conductive to prevent charge-induced corrosion and aging of the air electrode.

To 0.1A / g discharge rate of discharge, the discharge capacity is about 9000mAh / g. The previous lithium - air battery discharge capacity of only 700 ~ 3000mAh / g, can be said to achieve a substantial increase.The better than li-ion batteries(thinkpad t60 battery)

In addition, if the use of aqueous solution to replace the water-soluble gel can be in the air to 0.1A / g discharge rate of continuous discharge for 20 days, the discharge capacity of about 50000 mAh / g, compared with the original high-single digits. As the lithium metal battery capacity than lithium-ion battery had a high a number, so the value of a total of more than lithium-ion rechargeable batteries–thinkpad t400 battery,thinkpad t40 battery. high double-digit. High performance solution, but in ease of use even better on the gel. In the future need to consider which of these two, one for development.

This technology could also be considered with a simple to use rechargeable batteries(lenovo laptop battery) of different ways. If no battery charging, but replace the cathode through the aqueous base electrolyte, card boxes, etc. in order to recharge the lithium metal anode, cars will be no need to charge waiting time, immediately running. Through the recycling of used water-based electrolyte, the electric means to regenerate lithium, but also achieve the repeated use of lithium. It can be said is a new type of lithium-fueled fuel cell

Standard blank laptop batteries lost

Due to the lack of relevant standards, with the result that the quality of laptop batteries brought uneven quality issues encountered in consumer complaints, because there is no relevant test basis, does not solve the problem, there is no standard has also affected the healthy development of the industry as a whole –A Chinese enterprises have the right to speak of the industry standard is brewing: A few days ago, by the National Information Technology Standardization Technical Committee and Suzhou Fuyuan Technology Energy Limited as a unit organized to launch mobile power system standard seminar, Lenovo Group, Founder Technology, Tsinghua Tongfang, Tsinghua Unisplendour and other representatives from domestic enterprises Chatteris, urged their own intellectual property rights of the portable computer industry standard introduced mobile power. The industry standard is intended to break the monopoly of transnational corporations to help Chinese enterprises to participate in international division of a deeper level and collaboration.

As important as CPU power

For notebook computers the mobile office tool, its overall performance with the high and low standby power systems (batteries) inseparable from the performance advantages and disadvantages, because the realization of thinkpad t60 battery is the main support for mobile office one of the conditions, the importance of it in no way Asia in the CPU, graphics cards, hard drives and other components, its performance is a direct impact on the use of portable computers and security.

However, industry analysis, China as the world’s largest producer of battery absolute and absolute demand for big country, standby power systems for portable computers - Battery R & D has been blank. There are two main reasons: one is that notebook vendors insufficient technical reserves, no time to attend; the other is China’s battery manufacturers have long been engaged in only low-end production of the original battery to a battery-sized, secondary rechargeable batteries, especially the size of lithium-ion battery is formed after 2000, mainly mobile phone batteries, such as single-cell-based products only on the lithium battery manufacturing technology and process technology still being explored, the battery manufacturers to do high-end lenovo thinkpd t60 battery used in lithium-ion battery nobody cares about it. Notebook batteries by the OEM, ODM manufacturers for their production of various models of notebook computers supporting separate.

Enterprises paid a high price

Introduced by the representative of the participating enterprises, for a long time, thinkpad t40 battery core technology mainly concentrated in Japan, Taiwan and other manufacturers, such as Japan, SANYO, TOSHIBA, Panasonic, can Taiwan’s Yuan Science and Technology, the new S & P and other enterprises. Statistics show that China’s exports in 2003 the majority of notebook computers is an international large-scale production of transnational corporations, foreign-owned enterprises account for laptop computers 75.99 percent of total exports, the entire three-funded enterprises accounted for 99.77 percent of total exports.

Notebook computers and high industrial concentration and competitive, in order to effectively reduce costs, all notebook brands have taken foundry production patterns, and substituting plant basic monopoly by Taiwan, the Taiwan notebook OEM volume now accounts for global shipments of 70% . Although relying on the OEM, ODM and other mode of development of the notebook computer industry in China has been very large, but the key core technology is still in the hands of the hands of transnational corporations.

Standby power systems research and development gaps and the lack of relevant standards, so that Chinese enterprises have paid a great price. According to participants, representatives of businesses, currently in the Chinese market sales of lenovo thinkpad t61 battery and variable quality, reflected primarily in the standby time is short, life is even shorter. International common standards for the number of battery charging and discharging about 300 around 2003, the majority of sales in our notebook computers, battery charging and discharging of its number of only 70 ~ 120 times. This state of affairs so that our vendors, users suffered a great loss.

Delegates frankly, notebook battery life is also a headache for the manufacturers problem, the general in six months or nine months later, the battery life was significantly shorter, a lot of consumer complaints, the replacement of batteries, manufacturers have to buy high-priced spare parts to the OEM factory ; not replaced, the loss of markets, costly!

Due to the lack of relevant standards, China’s notebook computer manufacturers the lack of imports of standby power systems based on the evaluation, resulting in substandard battery assembly related products to consumers in the complaints do not have the relevant tests to enable the development of relevant industries has been undue losses, limiting the country’s energy industries. In addition, the technological monopoly of foreign manufacturers in the thinkpad t60 battery price monopoly, price has been high, making the cost of China’s notebook computer manufacturers do not fall down, profitability worrisome.

Need to introduce the relevant standards

In recent years, the world’s laptop sales grew nearly 10 percent year after year, China’s notebook computer market is growing by leaps and bounds, more than 30%. It is predicted that China in the next 5 years will usher in the peak consumption period, its growth will remain above 30%, regardless of their size of the market is still room for growth is enormous. Under such circumstances, China introduced the relevant standards notebook power of great significance.

Xuzhou Fuyuan Technology Co., Ltd., general manager of energy said the company is a small number of portable computers have a full picture of the mobile power management and control of core technologies with independent intellectual property rights of businesses. They hope to set up mobile portable computer power supply system (lenovo batteries) Standard Working Group, by virtue of the company has accumulated many years of technology and strong R & D investment and advanced technology of production levels, with domestic companies to work together to contribute to standards promulgated as soon as possible to ensure that China-related companies and the legitimate rights and interests of consumers, breaking the monopoly of foreign trade enterprises to improve China’s enterprises in the industry’s competitiveness.

The participating experts and analysis, there is no current domestic mobile power products(thinkppad x60 battery) for portable computers technical standards, the preparation of standby power portable computers generic technical specifications and standards, will fill in the products of China’s technical standards for gaps and put forward practical guiding significance to the function of technical indicators and Testing operational methods, the international and domestic markets portable computer back-up power products can provide a reference of the standard. The preparation of relevant standards regulating standby power product design, production and use, standardize the market order and improve our country in the portable computer industry’s overall competitiveness, the protection of consumer interests, promote upgrading of the industrial structure of China’s battery available to the general consumer quality products, but also of great significance.

Lenovo’s ThinkPad batteries failing

Lenovo is offering to replace certain lenovo batteries sold with its ThinkPad line of laptops, warning users that they may be permanently damaged due to errors.

The company is offering free replacements for batteries that do not recharge or suffer from “irreparable damage,” according to Lenovo’s support Web site.

Users need to run a diagnostics tool to see if batteries show any of those symptoms. The tool can be downloaded from Lenovo’s support site. If it indicates the battery is either damaged, shows sudden drops in the fuel gauge or fails to recharge, then the battery may need to be replaced.

Eligibility for a free replacement also depends on the laptop model and specific battery installed. Only a limited number of ThinkPad batteries qualify for a free replacement, the company said on its support site. The replacement offer applies to worldwide customers.Thinkpad T60 battery,thinkpad t61 battery,thinkpad x60 battery and so on.

Lenovo did not respond to requests for comment on the cause of the error. However, the company wrote on its support site that this was “not a safety recall and does not pose a safety hazard.”

The U.S. Consumer Safety Protection Commission in June 2007 asked Lenovo to recall about 100,000 ThinkPad batteries that could overheat and cause a fire. Those batteries were manufactured by Sanyo Electric Co. Ltd.

The laptops affected by this issue include the ThinkPad R60, R61, T60, T61, X60, X61 models with battery part numbers 42T4546, 42T4566, 92P1141, 42T4550, 42T4567, 42T4568, 92P1169, 92P1173, 93P5028, 93P5030.