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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 11811049 B1

PDFFull Text
Date of Patent:
Nov. 07, 2023

Filed:

Dec. 08, 2020

Carbon-based fiber sheet and lithium-sulfur battery including same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Yun Kyoung Kim, Daejeon, KR;

Taek Gyoung Kim, Daejeon, KR;

Kwonnam Sohn, Daejeon, KR;

Doo Kyung Yang, Daejeon, KR;

Mira Im, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Sadie White

Assistant Examiner:

Kayla Elaine Clary

Int. Cl.
CPC ...
H01M 4/133 (2010.01); D01F 9/20 (2006.01); D01F 9/22 (2006.01); H01M 10/052 (2010.01); D01D 5/00 (2006.01); H01M 50/44 (2021.01); H01M 50/403 (2021.01); H01M 50/431 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 4/36 (2006.01); H01M 4/136 (2010.01); D06M 23/06 (2006.01); D06M 13/322 (2006.01); D01D 5/20 (2006.01); D01F 9/145 (2006.01); D04H 1/4242 (2012.01); D04H 1/728 (2012.01); H01M 4/58 (2010.01); H01M 4/583 (2010.01); H01M 4/80 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/133 (2013.01); D01D 5/003 (2013.01); D01D 5/0038 (2013.01); D01D 5/20 (2013.01); D01F 9/145 (2013.01); D01F 9/20 (2013.01); D01F 9/22 (2013.01); D04H 1/4242 (2013.01); D04H 1/728 (2013.01); D06M 13/322 (2013.01); D06M 23/06 (2013.01); H01M 4/136 (2013.01); H01M 4/366 (2013.01); H01M 4/583 (2013.01); H01M 4/5815 (2013.01); H01M 4/806 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/431 (2021.01); H01M 50/44 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01);
Abstract

Disclosed is a carbon-based fiber sheet and a lithium-sulfur battery including the same. The carbon-based fiber sheet for the lithium-sulfur battery is doped with a high concentration of nitrogen and thus plays a role of preventing diffusion by adsorbing lithium polysulfide eluted from a positive electrode during charging and discharging, thereby suppressing a shuttle reaction and thus improving capacity and lifecycle properties of the lithium-sulfur battery.

Find Patent Forward Citations

Quick Actions:

Kim, Yun. (2023). Carbon-based fiber sheet and lithium-sulfur battery including same (U.S. Patent No. 11811049). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11811049

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