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:
Aug. 22, 2017
Filed:
Sep. 29, 2014
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Hideaki Sasaki, Tokyo, JP;
Takehiro Noguchi, Tokyo, JP;
Yuukou Katou, Tokyo, JP;
Makiko Takahashi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 10/42 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01); H01M 10/44 (2006.01); H01M 16/00 (2006.01); H01M 10/615 (2014.01); H02J 7/00 (2006.01); H01M 10/625 (2014.01); H01M 10/657 (2014.01); H01M 4/58 (2010.01); H01M 4/587 (2010.01); H01M 10/46 (2006.01); H01M 10/66 (2014.01);
U.S. Cl.
CPC ...
H01M 10/4207 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/587 (2013.01); H01M 4/5825 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); H01M 10/441 (2013.01); H01M 10/46 (2013.01); H01M 10/615 (2015.04); H01M 10/625 (2015.04); H01M 10/657 (2015.04); H01M 10/66 (2015.04); H01M 16/00 (2013.01); H02J 7/0013 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); Y02E 60/122 (2013.01);
Abstract
An object of the present invention is to provide a battery system improved in output characteristics and/or storage characteristic while taking advantage of high energy density of a lithium ion secondary battery comprising a positive electrode containing a positive electrode active material having an operating potential of 4.5 V or more relative to a lithium metal. The present invention relates to a battery system having a first battery consisting of a 5 V-level battery(s), a second battery consisting of a 4 V-level battery(s), and a control system.