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:
Feb. 19, 2019

Filed:

Aug. 05, 2015
Applicant:

Gs Yuasa International Ltd., Kyoto-shi, Kyoto, JP;

Inventors:

Mikihito Hasegawa, Shizuoka, JP;

Shinsuke Oki, Shizuoka, JP;

Yu Kojima, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/02 (2006.01); H01M 2/04 (2006.01); H01M 2/06 (2006.01); H01M 2/16 (2006.01); H01M 2/18 (2006.01); H01M 2/28 (2006.01); H01M 2/30 (2006.01); H01M 4/21 (2006.01); H01M 4/56 (2006.01); H01M 4/68 (2006.01); H01M 10/06 (2006.01); H01M 10/08 (2006.01); H01M 10/14 (2006.01);
U.S. Cl.
CPC ...
H01M 2/307 (2013.01); H01M 2/024 (2013.01); H01M 2/0242 (2013.01); H01M 2/043 (2013.01); H01M 2/06 (2013.01); H01M 2/1653 (2013.01); H01M 2/18 (2013.01); H01M 2/28 (2013.01); H01M 4/21 (2013.01); H01M 4/56 (2013.01); H01M 4/685 (2013.01); H01M 10/06 (2013.01); H01M 10/08 (2013.01); H01M 10/14 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0011 (2013.01); Y02E 60/126 (2013.01);
Abstract

A lead-acid battery includes an electrode plate assembly, a battery case, a positive electrode strap, a negative electrode strap, a positive electrode post, a negative electrode post, a cover, and an electrolyte solution. A negative electrode bushing provided in the cover and the negative electrode post together constitute a negative electrode terminal. A maximum value of a gap between an outer circumferential surface of the negative electrode post and an inner circumferential surface of the negative electrode bushing in the negative electrode terminal is 0.5 mm or more and 2.5 mm or less. A rib is provided in a lower part of the negative electrode bushing, and a minimum value of a protrusion height of the rib is 1.5 mm or more and 4.0 mm or less. A distance between a surface of the electrolyte solution and a lowermost portion of the negative electrode bushing is 15 mm or less.


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