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. 15, 2024
Filed:
Mar. 17, 2021
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/109 (2021.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 10/0525 (2010.01); H01M 50/409 (2021.01); H01M 50/434 (2021.01);
U.S. Cl.
CPC ...
H01M 50/109 (2021.01); H01M 4/0471 (2013.01); H01M 4/131 (2013.01); H01M 10/0525 (2013.01); H01M 50/409 (2021.01); H01M 50/434 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract
A coin-type lithium secondary cell for soldering by reflow method includes a positive electrode including a lithium composite oxide, a negative electrode, an electrolyte layer provided between the positive electrode and the negative electrode and including an electrolytic solution, a cell case having an enclosed space in which the positive electrode, the negative electrode, and the electrolyte layer are housed. The positive electrode and the negative electrode as a whole contains 3.0% by mass or less of lithium carbonate.