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:
Oct. 21, 2025
Filed:
Nov. 20, 2020
Applicant:
Gs Yuasa International Ltd., Kyoto, JP;
Inventors:
Yuta Nakamura, Kyoto, JP;
Yohei Shibata, Kyoto, JP;
Assignee:
GS Yuasa International Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 4/131 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract
An energy storage device according to an aspect of the present invention includes: a positive electrode including a positive active material layer; a negative electrode; and a nonaqueous electrolyte, the positive active material layer includes boron and aluminum, and a maximum voltage width that is a difference between a charge upper limit voltage and a discharge lower limit voltage under normal usage is 1.1 V or less.