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.

Date of Patent:
Jan. 04, 2022

Filed:

Mar. 11, 2020
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Norikazu Adachi, Kariya, JP;

Tomoki Yamane, Kariya, JP;

Takao Suenaga, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/44 (2006.01); G01R 31/392 (2019.01); H02J 7/00 (2006.01); G01R 31/36 (2020.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/44 (2013.01); G01R 31/3648 (2013.01); G01R 31/392 (2019.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/48 (2013.01); H02J 7/0047 (2013.01); H02J 7/007182 (2020.01); H01M 2004/027 (2013.01); H01M 2010/4271 (2013.01);
Abstract

A secondary battery and a control section are included. An electrode of the secondary battery has a singular point at which a variation in an output voltage with respect to a capacity is singularly changed. The control section includes a detection section and a calculation setting section. The detection section changes the capacity of the secondary battery, and detects a singular point capacity which is the capacity at which the singular point appears. When the secondary battery is deteriorated, the calculation setting section calculates and sets at least one of an upper limit value and a lower limit value of the capacity by using a detection value of the singular point capacity after the deterioration so that a potential of the electrode does not deviate from a predetermined range.


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