US 12,469,929 B2
Separator, electrical apparatus containing such separator, and preparation method thereof
Yongsheng Guo, Ningde (CN); Jiarui Tian, Ningde (CN); Cong Cheng, Ningde (CN); Na Liu, Ningde (CN); Chuying Ouyang, Ningde (CN); Yuanyuan Lan, Ningde (CN); and Shuojian Su, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Aug. 12, 2022, as Appl. No. 17/887,301.
Application 17/887,301 is a continuation of application No. PCT/CN2020/117855, filed on Sep. 25, 2020.
Claims priority of application No. 202010734845.9 (CN), filed on Jul. 28, 2020.
Prior Publication US 2022/0393305 A1, Dec. 8, 2022
Int. Cl. H01M 50/446 (2021.01); H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H01M 50/451 (2021.01); H01M 50/491 (2021.01)
CPC H01M 50/446 (2021.01) [H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H01M 50/451 (2021.01); H01M 50/491 (2021.01); H01M 2220/20 (2013.01)] 20 Claims
 
1. A separator, comprising:
a polymer matrix layer; and
a coating layer applied on at least one surface of the polymer matrix layer, wherein the coating layer comprises an organic-inorganic hybrid composite compound, and the organic-inorganic hybrid composite compound is formed by periodically assembling, along at least one spatial direction, basic units expressed by formula I; wherein
Lx(MaCb)y·Az  formula I
in formula I, M is a cation of one or more metals selected from the following: Zn, Co, Cu, Fe, Cd, Mn, Ag, Rh, Ru, Be, Mg, Al, Sc, Cr, Ni, Y, Ti, Zr, Hf, Li, Na, K, In, Ca, Sr, Pb, lanthanide metals, and actinide metals, wherein a is a value ranging from 0.1 to 10;
C is selected from one or more of the following atoms, atomic groups, small molecules, or anions: O, ═O, O2−, S2−, Cl−, Br−, I−, CO−, —OH, OH−, and H2O, wherein b is a value ranging from 0 to 20;
y is a value ranging from 1 to 50;
when Mis cations of two or more metals, a product of a and y represents the number of all metal cations in a single basic unit expressed by formula I;
L is selected from one or more of the following ligands: imidazole, porphyrin, pyridine, pyrazole, pyrimidine, piperidine, pyrrolidine, furan, thiophene, piperazine, pyridazine, indole, quinoline, carbazole, morpholine, and salts, acids, esters, amides, anhydrides, dimers, and trimers of the foregoing ligands, wherein one or more hydrogen atoms in the ligand are optionally substituted by one or more substituent groups selected from the following: cyano group, nitro group, amino group, aldehyde group, carboxyl group, halogen, C1-C8 alkyl group, hydroxy C1-C8 alkyl group, C1-C8 alkoxy group, C2-C8 alkenyl group, C2-C8 alkynyl group, C3-C16 cycloalkyl group, C6-C20 aryl group, C6-C20 heterocyclic group, or any combination thereof, wherein x is a value ranging from 1 to 50;
A is an atom or cation selected from one or more of the following metal elements: Li, Na, K, Rb, Cs, Be, Sr, Zn, Al, Mg, and Ca; or is selected from one or more of the following molecules: H2, O2, H2O, CO2, NH3, CH4, methyl formate, ethyl acetate, and propylene carbonate, wherein z is a value ranging from 0.01 to 100, wherein M and L form a cubic or quasi-cubic basic unit structure, M or a combination of M and C is located at a vertex of a basic unit, L is located on an edge of the basic unit, the basic unit has pores, A is located in the pores of the basic unit, and the basic unit is periodically assembled along the at least one spatial direction to form the organic-inorganic hybrid composite compound.