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:
Feb. 08, 2022
Filed:
Feb. 09, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/124 (2021.01); H01M 50/10 (2021.01); H01M 50/20 (2021.01); H01M 50/103 (2021.01); H01M 50/209 (2021.01);
U.S. Cl.
CPC ...
H01M 50/124 (2021.01); H01M 50/10 (2021.01); H01M 50/103 (2021.01); H01M 50/20 (2021.01); H01M 50/209 (2021.01);
Abstract
A nonaqueous electrolyte secondary battery according to an embodiment includes an electrode assembly, a nonaqueous electrolyte, and a prismatic battery case accommodating the electrode assembly and the nonaqueous electrolyte. The mass energy density of the secondary battery is not less than 200 Wh/kg. The nonaqueous electrolyte secondary battery further includes a non-cellular elastic sheet disposed between the electrode assembly and the battery case. The ratio (A/B) of the thickness (A) of the elastic sheet at 100% SOC to the thickness (B) of the elastic sheet at 0% SOC is 0.05 to 0.3.