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:
Jul. 20, 2021

Filed:

Mar. 16, 2018
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Sung-Ju Cho, Daejeon, KR;

Ho-Suk Shin, Daejeon, KR;

Seung-He Woo, Daejeon, KR;

Sung-Joong Kang, Daejeon, KR;

Hyea-Eun Han, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/139 (2010.01); H01M 4/04 (2006.01); H01M 10/0565 (2010.01); H01M 10/0585 (2010.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); H01M 4/0404 (2013.01); H01M 4/139 (2013.01); H01M 10/0565 (2013.01); H01M 10/0585 (2013.01); H01M 2300/0082 (2013.01);
Abstract

An electrode assembly for a solid state battery includes a positive electrode, a negative electrode and a solid electrolyte layer interposed between the positive electrode and the negative electrode. In addition, the binder disposed at the interface between the negative electrode and the solid electrolyte layer, the interface between the positive electrode and the solid electrolyte layer and/or at a predetermined depth from the interface is crosslinked to form a three-dimensional network. In other words, in the electrode assembly, the binder contained in the negative electrode and the solid electrolyte layer and/or the binder contained in the positive electrode and the solid electrolyte layer is crosslinked to improve the interfacial binding force between the negative electrode and the solid electrolyte layer and/or between the positive electrode and the solid electrolyte layer, and thus ion conductivity is maintained to a significantly high level.


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