US Patent 7067219 Additive for nonaqueous-electrolyte secondary battery
Patent 7067219 was granted and assigned to Bridgestone on June, 2006 by the United States Patent and Trademark Office.
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Patent abstract
The present invention provides an additive which is able to make a non-aqueous-electrolyte secondary cell or a non-aqueous electrolyte electric double layer capacitor which is excellent in low-temperature characteristics, while maintaining a necessary cell properties, and a non-aqueous-electrolyte secondary cell or a non-aqueous electrolyte electric double layer capacitor that contains therein the additive. The additive contains at least one of tautomers of phosphazene derivatives represented by formulae (1) and (2):
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Patent Inventor Names
Masashi Otsuki0
Shigeki Endo0
Takao Ogino0
Date of Patent
June 27, 2006
0Patent Application Number
103631720
Date Filed
September 5, 2001
0Patent Primary Examiner
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US Patent 7067219 Additive for nonaqueous-electrolyte secondary battery
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