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:
May. 10, 2022
Filed:
Dec. 15, 2016
The Nippon Synthetic Chemical Industry Co., Ltd., Osaka, JP;
Tomotake Yano, Osaka, JP;
Mitsuo Shibutani, Osaka, JP;
MITSUBISHI CHEMICAL CORPORATION, Tokyo, JP;
Abstract
The present invention relates to a secondary battery negative electrode binder composition with which a stable negative electrode active material layer can be formed, which can follow volumetric changes in the negative electrode, whereby a secondary battery can be manufactured that achieves a high charge/discharge capacity and allows for improvement in charge/discharge cycle characteristics. Provided is a binder composition for fabricating a secondary battery negative electrode, containing an element capable of forming an alloy with lithium as an active material, which is a secondary battery negative electrode binder composition comprising an emulsion in which polymer particles derived from an ethylenically unsaturated monomer are dispersed in an aqueous solution of a polyvinyl alcohol-based resin, wherein the ratio of the polyvinyl alcohol-based resin/polymer particles is 60/40 to 99/1, as a weight ratio of resin solids.