The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 2012
Filed:
Dec. 01, 2006
Suguru Kozono, Kyoto, JP;
Ichiro Tanaka, Kyoto, JP;
Shigeki Yamate, Kyoto, JP;
Naohiro Tsumura, Kyoto, JP;
Yoshihiro Katayama, Kyoto, JP;
Toshiyuki Nukuda, Kyoto, JP;
Suguru Kozono, Kyoto, JP;
Ichiro Tanaka, Kyoto, JP;
Shigeki Yamate, Kyoto, JP;
Naohiro Tsumura, Kyoto, JP;
Yoshihiro Katayama, Kyoto, JP;
Toshiyuki Nukuda, Kyoto, JP;
GS Yuasa International Ltd., Kyoto, JP;
Abstract
Gas generation of a non-aqueous electrolyte battery having a negative active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium as negative electrode is suppressed. A non-aqueous electrolyte battery comprising a non-aqueous electrolyte containing an electrolyte salt and a non-aqueous solvent, a positive electrode and a negative electrode is characterized in that the main active material of said negative electrode is an active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium and the auxiliary active material of said negative electrode is an active material that at least intercalates lithium ions at a potential lower than 1.2 V relative to the potential of lithium and that there exists lithium showing a spin-lattice relaxation time (T) of not less than 1 second as determined by a solid-state Li—NMR measurement in the main active material of said negative electrode. A method of manufacturing a non-aqueous electrolyte battery containing a non-aqueous electrolyte, a positive electrode and a negative electrode (a main active material and an auxiliary active material of the negative electrode) is characterized in that the negative electrode potential is lowered to not higher than 0.8 V relative to the potential of lithium at least once in the initial cycle.