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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.

Patent No.:

US 10886515 B1

PDFFull Text
Date of Patent:
Jan. 05, 2021

Filed:

May. 29, 2018

All-solid secondary battery and method of preparing the same

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Satoshi Fujiki, Yokohama, JP;

Takanobu Yamada, Yokohama, JP;

Tomoyuki Shiratsuchi, Yokohama, JP;

Yuichi Aihara, Yokohama, JP;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 4/133 (2010.01); H01M 10/052 (2010.01); H01M 10/0562 (2010.01); H01M 10/058 (2010.01); H01M 4/66 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/62 (2006.01); H01M 10/04 (2006.01); H01M 4/02 (2006.01); H01M 10/0585 (2010.01);
U.S. Cl.
CPC ...
H01M 2/1673 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/382 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 10/04 (2013.01); H01M 10/052 (2013.01); H01M 10/058 (2013.01); H01M 10/0562 (2013.01); H01M 4/623 (2013.01); H01M 10/0585 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract

An all-solid secondary battery including: a cathode including a cathode active material layer; an anode including an anode active material layer; and a solid electrolyte layer including a sulfide solid electrolyte between the cathode active material layer and the anode active material layer, wherein an arithmetic mean roughness (Ra) of an interface between the cathode active material layer and the solid electrolyte layer is about 1 micrometer or less, and a relative density of the solid electrolyte layer is about 80% or more.

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