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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 10673103 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Aug. 31, 2017

Battery module, battery pack and vehicle

Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Keigo Hoshina, Kashiwazaki, JP;

Yoshiyuki Isozaki, Tokyo, JP;

Norio Takami, Yokohama, JP;

Assignee:

KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Anca Eoff

Int. Cl.
CPC ...
H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 2/10 (2006.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H01M 10/441 (2013.01); H01M 2/1077 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 10/0525 (2013.01); H01M 10/4257 (2013.01); H01M 10/482 (2013.01); H02J 7/0021 (2013.01); H01M 2220/20 (2013.01); Y02E 60/122 (2013.01);
Abstract

A battery module according to one embodiment includes a first battery unit including a first nonaqueous electrolyte battery, and a second battery unit electrically connected in series to the first battery unit and including a second nonaqueous electrolyte battery. Each of the first and second nonaqueous electrolyte batteries includes a negative electrode including a spinel-type lithium titanate. The first nonaqueous electrolyte battery includes a positive electrode including at least one olivine-type lithium phosphate. The second nonaqueous electrolyte battery includes a positive electrode including at least one lithium-containing composite oxide. The discharge capacity ratio Ca/Cb between the first battery unit and the second battery unit satisfy 1.5<Ca/Cb≤50.

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