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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 11791456 B1

PDFFull Text
Date of Patent:
Oct. 17, 2023

Filed:

Mar. 08, 2018

Negative electrode with carbon-based thin film, manufacturing method therefor, and lithium secondary battery comprising same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Heewon Choi, Daejeon, KR;

Eun Kyung Kim, Daejeon, KR;

Ki Hwan Kim, Daejeon, KR;

Sangwook Woo, Daejeon, KR;

Jeong Woo Shon, Daejeon, KR;

Ohbyong Chae, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Jonathan G Leong

Assistant Examiner:

Tony S Chuo

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0426 (2013.01); H01M 4/0471 (2013.01); H01M 4/134 (2013.01); H01M 4/382 (2013.01); H01M 4/625 (2013.01); H01M 4/628 (2013.01); H01M 10/052 (2013.01); H01M 2004/027 (2013.01);
Abstract

A negative electrode having a carbon-based thin film formed on at least one surface of a lithium metal layer, and a lithium secondary battery including the same. A carbon-based thin film formed on at least one surface of a lithium metal layer blocks side reactions caused by direct contact between the lithium metal layer and an electrolyte as well as increasing a specific surface area of a negative electrode, and thereby suppresses lithium dendrite formation, and by obtaining current density distribution uniformly, enhances cycle performance, reduces an overvoltage to improve electrochemical performance of a lithium secondary battery.

Find Patent Forward Citations

Choi, Heewon. (2023). Negative electrode with carbon-based thin film, manufacturing method therefor, and lithium secondary battery comprising same (U.S. Patent No. 11791456). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11791456

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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