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Title:
BIPOLAR BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/123970
Kind Code:
A1
Abstract:
Provided is a bipolar lead-acid battery in which, even if an electrolytic solution enters into a communication hole, the electrolytic solution is effectively prevented from reaching the negative-electrode side and the generation of a liquid junction is strongly suppressed, whereby battery performance is less likely to deteriorate. A bipolar battery (1) is provided with a bipolar electrode (130) that has: a positive electrode (120) and a negative electrode (110); and a bipolar plate (111) in which the positive electrode (120) is provided to one surface thereof and the negative electrode (110) is provided to the other surface thereof. A communication hole (150) for communicating between the one surface and the other surface is formed in the bipolar plate (111). A positive-electrode current collector (101) and a negative-electrode current collector (102) are electrically joined via the communication hole (150). Partitioning means (160, 170) for partitioning a space between the inner surface of the communication hole (150) and a joint portion (J) between the positive-electrode current collector (101) and the negative-electrode current collector (102) is provided to said space.

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JPS6047376LEAD STORAGE BATTERY
JP2014164993CONTROL VALVE TYPE LEAD-ACID STORAGE BATTERY AND USING METHOD THEREOF
Inventors:
TANAKA HIROKI (JP)
NAKAJIMA YASUO (JP)
SUYAMA KENICHI (JP)
TANAKA AKIRA (JP)
TAIRA YOSHINOBU (JP)
HIROTA KENJI (JP)
Application Number:
PCT/JP2021/040633
Publication Date:
June 16, 2022
Filing Date:
November 04, 2021
Export Citation:
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Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA BATTERY CO LTD (JP)
International Classes:
H01M4/14; H01M4/68; H01M10/12; H01M50/541
Foreign References:
JP2020510968A2020-04-09
US20130065106A12013-03-14
JP2001185130A2001-07-06
JPH0927318A1997-01-28
US4542082A1985-09-17
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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