US 11,791,456 B2
Negative electrode with carbon-based thin film, manufacturing method therefor, and lithium secondary battery comprising same
Heewon Choi, Daejeon (KR); Eun Kyung Kim, Daejeon (KR); Ki Hwan Kim, Daejeon (KR); Sangwook Woo, Daejeon (KR); Jeong Woo Shon, Daejeon (KR); and Ohbyong Chae, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 16/465,499
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Mar. 8, 2018, PCT No. PCT/KR2018/002739
§ 371(c)(1), (2) Date May 30, 2019,
PCT Pub. No. WO2018/164494, PCT Pub. Date Sep. 13, 2018.
Claims priority of application No. 10-2017-0030399 (KR), filed on Mar. 10, 2017; and application No. 10-2018-0026852 (KR), filed on Mar. 7, 2018.
Prior Publication US 2020/0067075 A1, Feb. 27, 2020
Int. Cl. 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)
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)] 10 Claims
OG exemplary drawing
 
1. A negative electrode for a lithium secondary battery comprising:
a lithium metal layer;
a carbon-based thin film deposited on at least one surface of the lithium metal layer and having a thickness of 165 nm to 330 nm; and
an organosulfur protective layer on one surface of the carbon-based thin film not adjoining the lithium metal layer,
wherein the lithium metal layer has a thickness of 1 μm to 500 μm.