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Title:
BIPOLAR ELECTRODE AND POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/264499
Kind Code:
A1
Abstract:
This bipolar electrode (10) comprises a bipolar current collector (20), a positive electrode active material layer (30) provided on a surface of a positive electrode current collector (21), and a negative electrode active material layer (40) provided on a surface of a negative electrode current collector (22). The bipolar current collector (20) is provided with: the positive electrode current collector (21), which has an aluminum layer (21a); and the negative electrode current collector (22), which has a copper layer (22a). An oxide film (23) containing magnesium oxide is provided to the portion of the surface of the negative electrode current collector (22) where the negative electrode active material layer (40) is attached.

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Inventors:
SUGIYAMA YUSUKE (JP)
SUGIOKA TAKAHIRO (JP)
OTANI MADOKA (JP)
YASUDA SHUICHI (JP)
Application Number:
PCT/JP2022/005495
Publication Date:
December 22, 2022
Filing Date:
February 10, 2022
Export Citation:
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Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
H01M4/02; H01M4/13; H01M4/66
Domestic Patent References:
WO2011135818A12011-11-03
WO2018179782A12018-10-04
Foreign References:
CN110600739A2019-12-20
CN210379255U2020-04-21
JP2003142078A2003-05-16
JP2021031323A2021-03-01
US20190267631A12019-08-29
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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