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:
Mar. 29, 2016
Filed:
Jun. 23, 2011
Yoko Hashizume, Tokyo, JP;
Daisuke Kawasaki, Tokyo, JP;
Masahiro Suguro, Tokyo, JP;
Midori Shimura, Tokyo, JP;
Kazuaki Matsumoto, Tokyo, JP;
Yoko Hashizume, Tokyo, JP;
Daisuke Kawasaki, Tokyo, JP;
Masahiro Suguro, Tokyo, JP;
Midori Shimura, Tokyo, JP;
Kazuaki Matsumoto, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
Provided is a secondary battery having a good battery property at a high temperature. A secondary battery according to an exemplary embodiment of the invention comprises a negative electrode and an electrolyte liquid; wherein the negative electrode is formed by binding a negative electrode active substance on a negative electrode collector with a negative electrode binder; and wherein the electrolyte liquid comprises a compound (A) having a C═S bond. In this embodiment, the negative electrode active substance is formed by covering at least one of a metal (a) that can be alloyed with lithium and a metal oxide (b) that can absorb and desorb a lithium ion with a carbon material (c). Alternatively, the negative electrode active substance comprises a metal (a) that can be alloyed with lithium and the negative electrode binder negative electrode is a polyimide or a polyamide-imide.