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:
Aug. 08, 2017
Filed:
Feb. 26, 2015
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Takakazu Hirose, Annaka, JP;
Hiromichi Kamo, Takasaki, JP;
Hiroki Yoshikawa, Takasaki, JP;
Reiko Sakai, Takasaki, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
The present invention provides a negative electrode for a non-aqueous electrolyte secondary battery, the negative electrode comprising a negative electrode active material layer containing: negative electrode active materials including carbon active material and silicon active material composed of SiOat least partially coated with lithium carbonate where 0.5≦x≦1.6; and binders including carboxymethyl cellulose or metal salt thereof, polyacrylic acid or metal salt thereof, and styrene-butadiene rubber or polyvinylidene fluoride, and a non-aqueous electrolyte secondary battery including this negative electrode. The negative electrode can increase the battery capacity and improve the cycle performance and first charge and discharge efficiency.