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:
Apr. 16, 2019

Filed:

Nov. 22, 2016
Applicant:

Ngk Insulators, Ltd., Nagoya-Shi, JP;

Inventors:

Hiroshi Hayashi, Nagoya, JP;

Naohito Yamada, Nagoya, JP;

Kenshin Kitoh, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 10/34 (2006.01); H01M 2/16 (2006.01); H01M 10/28 (2006.01); H01M 10/30 (2006.01); H01M 2/02 (2006.01); H01M 4/24 (2006.01); H01M 4/30 (2006.01); H01M 4/32 (2006.01); H01M 4/42 (2006.01); H01M 4/52 (2010.01);
U.S. Cl.
CPC ...
H01M 10/34 (2013.01); H01M 2/0202 (2013.01); H01M 2/0237 (2013.01); H01M 2/16 (2013.01); H01M 4/244 (2013.01); H01M 4/30 (2013.01); H01M 4/32 (2013.01); H01M 4/42 (2013.01); H01M 4/52 (2013.01); H01M 10/28 (2013.01); H01M 10/30 (2013.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); H01M 2300/0014 (2013.01);
Abstract

Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The nickel-zinc battery includes a positive electrode containing nickel hydroxide and/or nickel oxyhydroxide; a positive-electrode electrolytic solution in which the positive electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a negative electrode containing zinc and/or zinc oxide; a negative-electrode electrolytic solution in which the negative electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a hermetic container accommodating the positive electrode, the positive-electrode electrolytic solution, the negative electrode, and the negative-electrode electrolytic solution; and the separator exhibiting hydroxide ion conductivity and water impermeability and disposed in the hermetic container so as to separate a positive-electrode chamber from a negative-electrode chamber. The alkali metal hydroxide concentration of the positive-electrode electrolytic solution differs from that of the negative-electrode electrolytic solution.


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