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:
May. 05, 2020
Filed:
May. 10, 2016
Applicant:
Sekisui Chemical Co., Ltd., Osaka, Osaka, JP;
Inventors:
Takuya Wada, Osaka, JP;
Hiroki Masuda, Osaka, JP;
Naoki Sasagawa, Osaka, JP;
Akira Nakasuga, Osaka, JP;
Shoji Nozato, Osaka, JP;
Assignee:
SEKESUI CHEMICAL CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/131 (2010.01); H01M 10/0525 (2010.01); H01M 4/525 (2010.01); C01G 51/00 (2006.01); C01B 32/05 (2017.01); H01M 4/36 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); C01B 32/05 (2017.08); C01G 51/42 (2013.01); H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/525 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract
Provided is a carbonaceous material capable of enhancing the initial charge and discharge efficiency and the cycle characteristics of lithium ion secondary batteries. The carbonaceous material is used as an electrode material for a lithium ion secondary battery and has a volume resistivity of 0.7 Ω·cm or less as measured at a pressure of 13 MPa in the form of a mixture of 5 wt % of the carbonaceous material and 95 wt % of lithium cobaltate.