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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.:

US 10466306 B1

PDFFull Text
Date of Patent:
Nov. 05, 2019

Filed:

Jul. 20, 2017

Method of manufacturing battery pack

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Kazuya Kodama, Tajimi, JP;

Masahiko Mitsui, Toyota, JP;

Junta Izumi, Nagoya, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Christopher P McAndrew

Int. Cl.
CPC ...
G01R 31/36 (2019.01); G01R 31/385 (2019.01); H01M 10/6555 (2014.01); H01M 2/10 (2006.01); H01M 4/485 (2010.01); H01M 10/04 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 10/54 (2006.01); G01R 31/392 (2019.01); H01M 10/42 (2006.01); H01M 10/34 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3865 (2019.01); G01R 31/392 (2019.01); H01M 2/1022 (2013.01); H01M 4/485 (2013.01); H01M 10/0459 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H01M 10/54 (2013.01); H01M 10/6555 (2015.04); H01M 10/345 (2013.01); H01M 2010/4271 (2013.01); Y02W 30/84 (2015.05);
Abstract

(A) A used battery pack is prepared. (B) By disassembling the used battery pack, a cell etc. is collected from the used battery pack. The cell etc. are a nickel-metal hydride battery. (C) A state of charge of the collected cell etc. is adjusted to a state of charge within any of a first SOC range (0 to 3%), a second SOC range (3 to 20%), and a third SOC range (100 to 200%). (G) An amount of voltage lowering as a result of the cell etc. being left is calculated. (H) When the amount of voltage lowering is equal to or smaller than a reference value set in advance, the cell etc. is determined as a good product. (I) A battery pack including the cell etc. determined as the good product is manufactured.

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