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Dell and Apple recalls this incident was not the first time in the battery Laptop Battery overheating problem, nor is it the first computer makers to recall batteries. Have reason to ask the question: This is some sort of unusual things, or will as more and more battery-powered devices to enter the market to become an industry trend?

Most modern battery-powered equipment manufacturers facing a hard choice. On the one hand, users expect their notebook PCs to run at least 4 ~ 5 hours, much higher than two years ago, the average 2 ~ 3 hours. However, the pace of development of battery technology can not be with the "hardware development curve" to keep pace. In fact, the battery power of an annual increase of only 5% to 10%, far lower than the processor performance an average of 18 to 24 months increased by several times the speed. Users need to be more smaller, lighter equipment, while nearly all batteries in portable PP2182L devices, the total volume and weight in the account for a large proportion.

In addition, more and more impatient users need the equipment to quickly run up a fast recharge time, which need to enter the high-power electric battery charger, thus increasing the heat, limiting battery life. Some new battery technologies (such as fuel cells) may change this situation, but at least 3 to 5 years, such technology does not yet have the possibility to meet the needs of the mass market.

Portable systems 345027-001 (not just laptops, but also including the handset, cell phones and music players) in the device designers must be the size and weight and battery life, charge time, power supply size / weight, the total power density / heat, of course, make a compromise between the costs and face the risk of overheating is not the only battery. It has been known small "brick-style" battery charger also has a fire risk.

In addition, vendors are not always fully tested for its brand of equipment. For the smaller brands for consumers and equipment in particular. Few companies on the portable devices (including not only laptops but also includes smart phones) Procurement of adequate power / temperature / life-cycle test.

Dell and Apple recalled nearly six million laptop batteries concerned, so that high-tech industry has long been a dirty secret exposure - for our portable machines, wireless 342661-001 phones, iPod and digital camera batteries to provide electricity is a potential arsonist.

Since the early 90s of last century, lithium replacing nickel-cadmium and other materials are widely used to produce a variety of electronic devices used in the battery. Smaller, lighter lithium batteries have been used to drive more and more, increasingly demanding electronic devices, such as high-resolution screen laptop configuration. The widely used lithium batteries led to a revolution in portable electronic products, it will a lot of energy concentrated in a very small space. However, if they are over-charging, or therepavilion dv6000(hp dv6000 battery) is such as short-circuit fault, sealed batteries waiting to ignite chemical substances will become explosive combustion.

Lithium is a once exposed to air combustion, explosion of metal with water. But, surprisingly, is that lithium batteries caught fire with nothing to do, because its not usually unstable lithium metal forms and shapes, danger is a chemical reaction produces current release of hydrogen. If the battery is overheating, hydrogen will be in a dangerous chemical fire in combination with the organic solvents, this chemical fire could be restrained but depleted in hydrogen and fuel will not be put out before.

Despite the inherent risks, but lithium batteries will not go away anytime soon, because now there is no good alternative technologies. However, the risk of fire to bring the Pavilion dv8000(hp dv8000 battery) companies involved in the recall result in addition to financial losses, one implication of this is we are improving battery efficiency reached the dead end, because without some major chemical breakthrough, greater power density cause unacceptable risks.

In a breakthrough in battery technology will soon be the case, Toshiba and other companies under the leadership of researchers are developing fuel cells as an alternative technologies. Due to difficulties in transportation and storage of hydrogen fuel cell powered by liquid methanol, rather than planned for automotive fuel cell gases. So far, no one can develop to meet the power requirements for portable machines can be installed in the space currently occupied by low-cost HSTNN-DB20 battery-fuel cell.

Link: several major vendors pushing the industry standard

Apple, Dell and Lenovo will be held this month in the U.S. city of San Jose, California to convene a summit meeting. According to Apple insiders said the three companies will discuss the production of portable and handheld electronic devices, lithium battery standard.

The three companies are the U.S. electronic circuits and electronic interconnection industry associations under the OEM key components of members of the Committee, the association has about 2400 on behalf of the electronics interconnect industry, the company's organization in all areas. IPC OEM key components of the Chairman of Dell's director of supplier engineering 395789-001 and quality, said John Grosso, the Committee will identify with the lithium battery-related criteria, aimed at achieving the design, performance and safety requirements for standardization. Grosso said: "Although the Commission had already identified as the lithium batteries under a standardized product, but now we will accelerate the speed of action."

As the last month, Dell announced the recall of 4.1 million notebook computer batteries, defective and potentially harmful cells became a hot topic in recent weeks. U.S. Consumer Product Safety Commission reviewed the Apple 15-inch MacBook Pro notebook computer batteries, saying that they do not exist security threats.

Last week, including Dell, HP and Lenovo notebooks, including the major computer manufacturers say they will establish an industry organization to develop standards for lithium batteries. Forrester Research Inc. analyst Ted Schadler, director of consumer technology, said, the standard can reduce complexity, improve the monitoring of laptop's internal 396008-001 battery safety system reliability.