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. 11, 2025
Filed:
Nov. 02, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Yuki Morikawa, Hyogo, JP;
Masanori Sugimori, Hyogo, JP;
Yasunori Baba, Hyogo, JP;
Katsunori Yanagida, Hyogo, JP;
Nobuhiro Hirano, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 50/417 (2021.01); H01M 50/423 (2021.01); H01M 50/451 (2021.01); H01M 50/457 (2021.01); H01M 50/46 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 50/46 (2021.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/58 (2013.01); H01M 4/668 (2013.01); H01M 10/0525 (2013.01); H01M 50/417 (2021.01); H01M 50/423 (2021.01); H01M 50/451 (2021.01); H01M 50/457 (2021.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract
In a nonaqueous electrolyte secondary battery, a separator includes a substrate, a first filler layer disposed on one side of the substrate and containing phosphate salt particles, and a second filler layer disposed on the other side of the substrate and containing inorganic particles. The separator is disposed between a positive electrode and a negative electrode in such a manner that the side of the substrate which bears the first filler layer is directed to the positive electrode side.