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:
Dec. 04, 2018
Filed:
Jun. 03, 2014
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Tetsuya Kajita, Tokyo, JP;
Shin Serizawa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 4/38 (2006.01); H01M 4/04 (2006.01); H01M 4/40 (2006.01); H01M 10/0525 (2010.01); H01M 4/583 (2010.01); H01M 4/60 (2006.01); H01M 4/133 (2010.01); H01M 4/1395 (2010.01); H01M 4/587 (2010.01); H01M 4/134 (2010.01); H01M 4/1393 (2010.01); C08L 77/06 (2006.01); B29B 7/00 (2006.01); C08G 73/10 (2006.01); H01M 4/36 (2006.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); B29B 7/002 (2013.01); C08G 73/10 (2013.01); C08L 77/06 (2013.01); H01M 4/0404 (2013.01); H01M 4/0471 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/1393 (2013.01); H01M 4/1395 (2013.01); H01M 4/364 (2013.01); H01M 4/38 (2013.01); H01M 4/405 (2013.01); H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 4/60 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 2220/30 (2013.01);
Abstract
The present invention relates to an electrode binder composition including a high-molecular-weight poly(amic acid) having a weight-average molecular weight of 5,000 or more and 100,000 or less and a low-molecular-weight poly(amic acid) having a weight-average molecular weight of 100 or more and 2,000 or less, and the present invention can provide an electrode binder composition that leads to a secondary battery having a high capacity superior in the initial charge/discharge efficiency and the cycle characteristics.