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Strategies & Market Trends : Technology Stocks & Market Talk With Don Wolanchuk

SOXL 41.73

-3.0%

Nov 7 4:00 PM EST

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To: Sam Citron who wrote (29927)	3/5/2008 1:23:32 PM
From: Cheeky Kid	Read Replies (1) of 206773

news.com A favorite of notebook makers and consumer electronics manufacturers, lithium-ion batteries can hold more energy than competing types of batteries. Unfortunately, they also come with a glaring side effect. They can short on occasion, resulting in a "runaway thermal reaction" in industry parlance. In layman's terms, that's a fire or an explosion. Recalls in 2006 cost Sony millions of dollars. Some companies have tinkered with the internal chemistry of the batteries. Notebooks contain lithium cobalt batteries. Altair Nanotechnologies and EnerDel have devised lithium titanate batteries, while others have come up with lithium potassium batteries. The change in chemistry lowers the risk of explosions, but also lowers the energy density. Lower energy density directly leads to lower mileage or runtime on laptops. Others are looking at getting rid of lithium altogether and switching to a rechargeable zinc battery. By contrast, Boston-Power has largely kept the internal chemistry the same and instead fine-tuned the other elements that make up a battery. (Lampe-Onnerud and other members of the Boston-Power executive team have worked in the lithium-ion industry for years.) The can, or outside casing around the battery cells, on the Sonata is made from a metal alloy that is stronger than the iron cans used with conventional notebook batteries and, thus, will remain intact in the case of a thermal reaction or fire, according to the company.

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