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:
Sep. 26, 2023

Filed:

Feb. 26, 2021
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Yasuyuki Hotta, Tokyo, JP;

Yumiko Sekiguchi, Kawasaki Kanagawa, JP;

Shinsuke Matsuno, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/46 (2021.01); H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); H01M 4/50 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 50/403 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 50/46 (2021.01); H01M 4/502 (2013.01); H01M 4/623 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 50/403 (2021.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0071 (2013.01); H01M 2300/0082 (2013.01);
Abstract

According to one embodiment, an electrode construct including an electrode and a composite membrane is provided. The electrode includes an active material-containing layer and a current collecting layer. The active material-containing layer includes a first principal surface and a second principal surface. The current collecting layer is in contact with the second principal surface. The composite membrane includes a composite layer in contact with the first principal surface. The composite layer contains inorganic solid particles and a polymeric material. A peel strength σ1 at a first interface between the active material-containing layer and the composite layer and a peel strength σ2 at a second interface between the active material-containing layer and the current collecting layer satisfy a relationship of σ1>σ2, and σ2≤1 N/cm.


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