Patent ID: 11901510
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 17:
18. A method of preparing a cathode for a solid secondary battery, the method comprising:
forming a cathode active material layer on a cathode current collector to prepare a cathode, the cathode active material layer comprising a cathode active material;
providing a hybrid electrolyte composition to the cathode, wherein the hybrid electrolyte composition comprises a monomer represented by Formula 20 and an ionic liquid; and
applying light or heat to the cathode to which the hybrid electrolyte composition is provided to cause a polymerization reaction, to obtain the cathode for a solid secondary battery comprising the cathode active material and the cathode hybrid electrolyte of claim 1,, wherein, in Formula 20, X is an unsubstituted or substituted C6-C30 arylene group, an unsubstituted or substituted C2-C30 heteroarylene group, or —C(═O)O—R7—;
R7 is an unsubstituted or substituted C1-C30 alkylene group or an unsubstituted or substituted C6-C30 arylene group;
R1 to R3 are each independently hydrogen, an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C6-C20 aryl group, or an unsubstituted or substituted C2-C30 heteroaryl group; and
—Y− is an anionic moiety, and wherein an anion of the ionic liquid comprises the same anionic moiety —Y− as in Formula 20.