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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 10910677 B1

PDFFull Text
Date of Patent:
Feb. 02, 2021

Filed:

Apr. 13, 2018

Stacked battery

Applicant:

Toyota Jidosha Kabushiki Kaisha, Tokyo, JP;

Inventors:

Hajime Hasegawa, Susono, JP;

Yuki Matsushita, Atsugi, JP;

Hideaki Nishimura, Sunto-gun, JP;

Yusuke Okuhata, Susono, JP;

Norihiro Ose, Sunto-gun, JP;

Mitsuru Tateishi, Susono, JP;

Shigetaka Nagamatsu, Mishima, JP;

Takayuki Uchiyama, Susono, JP;

Shigenori Hama, Sunto-gun, JP;

Dai Kato, Susono, JP;

Naohiro Mashimo, Susono, JP;

Hideyo Ebisuzaki, Toyota, JP;

Ayano Kobayashi, Susono, JP;

Hisataka Fujimaki, Nisshin, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Jonathan Crepeau

Int. Cl.
CPC ...
H01M 2/26 (2006.01); H01M 10/04 (2006.01); H01M 10/0585 (2010.01); H01M 10/42 (2006.01); H01M 4/38 (2006.01); H01M 4/02 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 10/425 (2013.01); H01M 2/26 (2013.01); H01M 2/266 (2013.01); H01M 4/386 (2013.01); H01M 10/0418 (2013.01); H01M 10/0472 (2013.01); H01M 10/4207 (2013.01); H01M 10/052 (2013.01); H01M 10/0585 (2013.01); H01M 2004/027 (2013.01); H01M 2200/00 (2013.01); Y02E 60/10 (2013.01);
Abstract

An objective of the present disclosure is to provide a stacked battery that suppresses sneak current caused by an unevenness of a short circuit resistance among a plurality of cells. The present disclosure provides a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; the stacked battery includes a surface-side cell that is located on a surface side of the stacked battery, and a center-side cell that is located on a center side rather than the surface-side cell; wherein a resistance of the cathode current collecting tab in the surface-side cell is more than a resistance of the cathode current collecting tab in the center-side cell; or a resistance of the anode current collecting tab in the surface-side cell is more than a resistance of the anode current collecting tab in the center-side cell.

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