US 12,132,205 B2
Lithium composite anode, method of fabricating the same, and lithium secondary battery including the same
Ju Young Kim, Daejeon (KR); Young-Gi Lee, Daejeon (KR); Kwang Man Kim, Daejeon (KR); and Dong Ok Shin, Daejeon (KR)
Assigned to SK INNOVATION CO., LTD., Seoul (KR)
Filed by SK INNOVATION CO., LTD., Seoul (KR)
Filed on Jul. 23, 2018, as Appl. No. 16/042,935.
Claims priority of application No. 10-2017-0112120 (KR), filed on Sep. 1, 2017; and application No. 10-2017-0170704 (KR), filed on Dec. 12, 2017.
Prior Publication US 2019/0074515 A1, Mar. 7, 2019
Int. Cl. H01M 4/58 (2010.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/136 (2010.01); H01M 4/137 (2010.01); H01M 4/1391 (2010.01); H01M 4/1395 (2010.01); H01M 4/1397 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/5825 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0409 (2013.01); H01M 4/0416 (2013.01); H01M 4/043 (2013.01); H01M 4/131 (2013.01); H01M 4/134 (2013.01); H01M 4/136 (2013.01); H01M 4/137 (2013.01); H01M 4/1391 (2013.01); H01M 4/1395 (2013.01); H01M 4/1397 (2013.01); H01M 4/623 (2013.01); H01M 4/626 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A lithium composite anode for lithium battery, comprising:
a metal film having a first portion and a second portion, the first portion including a first surface, the second portion including a second surface that is opposite to the first surface; and
a conductive film including lithium metal particles, lithium ion conductors, electron conductors, and a binder, wherein the lithium ion conductors and the electron conductors are cross-linked by the binder and disposed over the first surface of the metal film;
a combination of the first portion of the metal film and lithium ion conductors and electron conductors dispersed in the first portion of the metal film, the combination disposed between the conductive film and the metal film, each of the lithium ion conductors and the electron conductors having a solid structure; and
a collector on the second surface of the metal film,
wherein the metal film includes a lithium,
wherein some of the lithium ion conductors and the electron conductors are impregnated into the first portion of the metal film from the first surface of the metal film,
wherein none of the lithium ion conductors and the electron conductors are impregnated into the second portion of the metal film from the first surface of the metal film,
wherein a melting point of the conductive film is higher than that of the metal film,
wherein the lithium ion conductors have a one-dimensional linear structure, a two-dimensional planar structure, or a three-dimensional mass structure,
wherein the electron conductors have a one-dimensional linear structure, a two-dimensional planar structure, or a three-dimensional mass structure.