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:
May. 25, 2021

Filed:

Mar. 14, 2019
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Satoshi Mizutani, Numazu, JP;

Yuhki Yui, Susono, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/38 (2006.01); H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0562 (2013.01); H01M 4/386 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2300/002 (2013.01);
Abstract

An all-solid-state battery which includes an anode layer that contains a Si-based material as an anode active material and which has high energy density. Provided is an all-solid-state battery including a cathode layer, an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the anode layer includes an anode active material that contains at least one Si-based material selected from the group consisting of Si and a Si alloy, and a solid electrolyte that contains a sulfide-based solid electrolyte; wherein a void surrounded by the solid electrolyte is present in at least a region formed by the solid electrolyte in the anode layer; and wherein, when a total volume of the anode layer is determined as 100 vol %, a percentage of the voids surrounded by the solid electrolyte in the anode layer, is 3.4 vol % or more and 29.6 vol % or less.


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