NTT DoCoMo Inc unveiled a battery pack that can detect the deterioration and troubles of a Li-ion secondary battery used in a cell phone July 22, 2008.
The company exhibited the "intelligent battery pack" at Wireless Japan 2008, which is an exhibition of wireless technologies and runs from July 22 to 24 at Tokyo Big Sight.
NTT DoCoMo developed the battery pack in response to the explosions and fire accidents of Li-ion secondary battery packs for cell phones that occurred in 2006 and 2007.
"As a measure to enhance the reliability of battery packs, we will start to employ the new battery pack in our new models within a year," said Kazuhiko Takeno, director in charge of technology promotion, the Mobile Device Development Department of NTT DoCoMosumber
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