Patent ID: 9431689
Filing Date: 2016-08-30
CPC Classification: H01M,Y02E

Claim Text:
1. A lithium-air secondary cell comprising: an air electrode; a negative electrode containing metal lithium or a lithium-containing material; and a gel-form solid electrolyte, wherein the gel-form solid electrolyte contains a solid electrolyte salt, a solvent, and a lipid peptide-type gelator composed of at least one of compounds of Formulae (1) to (3): (where R 1 is a C 9-23 aliphatic group, R 2 is a hydrogen atom or a C 1-4 alkyl group optionally having a C 1 or C 2 branched chain, R 3 is a —(CH 2 ) n —X group, n is a number of 1 to 4, and X is an amino group, a guanidino group, a —CONH 2 group, a 5-membered ring optionally having 1 to 3 nitrogen atoms, a 6-membered ring optionally having 1 to 3 nitrogen atoms, or a condensed heterocycle that is composed of a 5-membered ring and a 6-membered ring and optionally has 1 to 3 nitrogen atoms), (where R 4 is a C 9-23 aliphatic group, each of R 5 to R 7 is independently a hydrogen atom, a C 1-4 alkyl group optionally having a C 1 or C 2 branched chain, or a —(CH 2 ) n —X group, n is a number of 1 to 4, and X is an amino group, a guanidino group, a —CONH 2 group, a 5-membered ring optionally having 1 to 3 nitrogen atoms, a 6-membered ring optionally having 1 to 3 nitrogen atoms, or a condensed heterocycle that is composed of a 5-membered ring and a 6-membered ring and optionally has 1 to 3 nitrogen atoms), and (where R 8 is a C 9-23 aliphatic group, each of R 9 to R 12 is independently a hydrogen atom, a C 1-4 alkyl group optionally having a C 1 or C 2 branched chain, or a —(CH 2 ) n —X group, n is a number of 1 to 4, and X is an amino group, a guanidino group, a —CONH 2 group, a 5-membered ring optionally having 1 to 3 nitrogen atoms, a 6-membered ring optionally having 1 to 3 nitrogen atoms, or a condensed heterocycle that is composed of a 5-membered ring and a 6-membered ring and optionally has 1 to 3 nitrogen atoms), and pharmaceutically acceptable salts of the compounds.