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:
Nov. 21, 2023
Filed:
May. 24, 2018
Sanyo Electric Co., Ltd., Daito, JP;
Takuya Shinomiya, Tokushima, JP;
PANASONIC ENERGY CO., LTD., Osaka, JP;
Abstract
The present disclosure aims to provide a nonaqueous electrolyte secondary battery having excellent discharge load characteristics and excellent long-term cycle characteristics. A nonaqueous electrolyte secondary battery which is one example of an embodiment of the present disclosure includes a positive electrode, a negative electrode (), separators, and a nonaqueous electrolyte. The negative electrode () includes a negative electrode collector () and a negative electrode mixture layer () formed on the negative electrode collector (). The negative electrode mixture layer () includes a first mixture layer primarily composed of a carbon-coated graphite () and a second mixture layer () primarily composed of a graphite (), the first mixture layer () is disposed at a surface side of the negative electrode mixture layer (), and the second mixture layer () is disposed at a side of the negative electrode collector ().