US 11,718,073 B2
Asymmetry composite material
Jong Min Shin, Daejeon (KR); Dong Woo Yoo, Daejeon (KR); and Jin Kyu Lee, Daejeon (KR)
Assigned to LG CHEM. LTD., Seoul (KR)
Appl. No. 17/261,601
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Aug. 6, 2019, PCT No. PCT/KR2019/009791
§ 371(c)(1), (2) Date Jan. 20, 2021,
PCT Pub. No. WO2020/032535, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 10-2018-0091348 (KR), filed on Aug. 6, 2018.
Prior Publication US 2021/0291497 A1, Sep. 23, 2021
Int. Cl. B32B 27/06 (2006.01); B32B 5/18 (2006.01); B32B 27/36 (2006.01)
CPC B32B 27/065 (2013.01) [B32B 5/18 (2013.01); B32B 27/36 (2013.01); B32B 2255/062 (2013.01); B32B 2255/26 (2013.01); B32B 2266/045 (2013.01); B32B 2307/20 (2013.01); B32B 2307/54 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An asymmetry composite material, comprising:
a first polymer layer,
a metal porous body, and
a second polymer layer,
wherein the first polymer layer, the metal porous body and the second polymer layer are sequentially stacked, wherein the first polymer layer and the second polymer layer comprise different components, wherein the first polymer layer penetrates into pores of a first surface of the metal porous body, wherein the second polymer layer penetrates into pores of a second surface of the metal porous body, wherein a first region formed by a first polymer component of the first polymer layer penetrating into the pores and a second region formed by the second polymer layer penetrating into the pores are present inside of the metal porous body, wherein only the first region and the second region are present inside of the metal porous body, and wherein a thickness of the first region is in a range of 0.05 to 0.95 times a thickness of the metal porous body.