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:
Jun. 13, 2017
Filed:
May. 21, 2015
Applicant:
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
SUMITOMO OSAKA CEMENT CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/587 (2010.01); H01M 4/133 (2010.01); H01M 4/04 (2006.01); H01M 4/136 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0471 (2013.01); H01M 4/136 (2013.01); H01M 4/5825 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01);
Abstract
An electrode material includes an electrode active material having a carbonaceous film formed on a surface is used and which is capable of suppressing voltage drop when high-speed charge and discharge is carried out in a low-temperature environment. The electrode material has a particulate shape and is formed a carbonaceous film on surfaces of electrode active material particles. An average of discharge capacity ratios between a 35C discharge capacity at −10° C. of a single particle of the electrode material and a 1C discharge capacity at −10° C. of a single particle of the electrode material is 0.50 or more.