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American Chemical Society's Weekly PressPac -- Dec. 12, 2007
Date:12/17/2007

ort to improve the safety of these rechargeable power packs found in dozens of consumer electronics products, according to an article [http://pubs.acs.org/cen/science/85/8551sci1.html] scheduled for the Dec. 17 issue of Chemical & Engineering News, ACS weekly newsmagazine.

In the article, C&EN Senior Editor Mitch Jacoby points out that fires and explosions involving Lithium-ion batteries are rare, occurring in anywhere from one in 1 million to one in 10 million batteries, according to the best estimates. Still, these widely-publicized incidents have worried consumers and forced costly recalls of millions of batteries.

Researchers in industry and academia do not fully understand why Lithium-ion batteries sometimes catch fire or explode, Jacoby notes. Possible explanations include impurities that short circuit the batteries and yet unidentified reactions that underlie the problem. Nevertheless, researchers are exploring new battery materials, including components that generate less heat and reduce the risk of mishaps. Manufacturers are already selling or planning to sell safer Lithium-ion batteries for power tools and electric vehicles, with more improvements on the way, according to the article.

ARTICLE #5 EMBARGOED FOR 9 A.M., EASTERN TIME, Dec. 17, 2007
Lithium-Ion Battery Safety

This story will be available on Dec. 17 at http://pubs.acs.org/cen/science/85/8551sci1.html

FOR ADVANCE INFORMATION, CONTACT: Michael Bernstein
ACS News Service
Phone: 202-872-6042
Fax: 202-872-4370
Email: m_bernstein@acs.org


For Wired Readers

12 Days of Holiday Podcasts

The American Chemical Society (ACS) Office of Communications is posting a Santas sack of gifts for the entertainment and enlightenment of users of iPods and other portable digital audio players. Called The 12 Da
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Contact: Michael Woods
m_woods@acs.org
202-872-4400
American Chemical Society  
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