CPC H01M 10/0525 (2013.01) [H01M 50/434 (2021.01); H01M 50/451 (2021.01); H01M 50/489 (2021.01); H01M 50/417 (2021.01); H01M 2220/20 (2013.01)] | 10 Claims |
1. A method of manufacturing a lithium secondary battery comprising a ceramic coating separator, the method comprising:
coating first ceramic particles and second ceramic particles on one or both surfaces of a separator substrate, wherein the first ceramic particles comprise an epoxide group, and the second ceramic particles comprise an amine group; and
heat-treating the first ceramic particles and the second ceramic particles so as to form crosslinking between the epoxide group of the first ceramic particles and the amine group of the second ceramic particles to form a binder-free ceramic layer on said one or both surfaces of the separator substrate, thereby forming the ceramic coating separator,
wherein ceramic coating separator is binder-free.
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