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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 9966638 B1

PDFFull Text
Date of Patent:
May. 08, 2018

Filed:

Nov. 05, 2014

Manufacturing method for non-aqueous secondary battery

Applicant:

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

Inventors:

Yukiyoshi Ueno, Toyota, JP;

Junko Ohira, Toyota, JP;

Assignee:

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

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Thiem Phan

Int. Cl.
CPC ...
G01R 31/28 (2006.01); H01M 10/44 (2006.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 10/0587 (2010.01); H01M 2/02 (2006.01); H01M 2/04 (2006.01); H01M 2/16 (2006.01); H01M 2/26 (2006.01); H01M 2/30 (2006.01); H01M 4/04 (2006.01); H01M 4/1391 (2010.01); H01M 4/1393 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 10/48 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/446 (2013.01); H01M 2/024 (2013.01); H01M 2/0439 (2013.01); H01M 2/1653 (2013.01); H01M 2/1686 (2013.01); H01M 2/263 (2013.01); H01M 2/305 (2013.01); H01M 4/043 (2013.01); H01M 4/0404 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/1391 (2013.01); H01M 4/1393 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/587 (2013.01); H01M 4/622 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 10/049 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 10/0587 (2013.01); H01M 10/48 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/004 (2013.01); Y02T 10/7011 (2013.01); Y10T 29/49004 (2015.01); Y10T 29/49108 (2015.01);
Abstract

A manufacturing method for a non-aqueous secondary battery includes the following steps. (a) Preparing an electrode body including a positive electrode having a positive electrode active material layer and a negative electrode having a negative electrode active material layer. (b) Constructing a battery assembly using the electrode body and a non-aqueous electrolyte. (c) Initially charging the battery assembly. (d) Aging the battery assembly at a temperature of 60° C. or higher. (e) Forcibly starting to discharge the battery assembly in said temperature region after lowering the temperature of the battery assembly down to a temperature region of 35° C. or higher and 55° C. or lower. (f) Adjusting the SOC of the battery assembly. (g) Measuring a voltage drop amount by self-discharging the battery assembly. And (h) determining whether or not the battery assembly is qualified based on the voltage drop amount.

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