Patent ID: 8299270

Claim:
A gel-like or solid electrolyte comprising (i) an electrolyte solution containing an electrolyte dissolved in an organic solvent, (ii) a lamellar clay mineral and/or an organically modified lamellar clay mineral and (iii) a polyvalent onium salt compound, wherein the polyvalent onium salt compound is at least one salt selected from the group consisting of compounds having the formulae (I) to (III) wherein R 1 to R 3 may be the same or different and indicate an alkyl group, cycloalkyl group, hydroxyalkyl group, alkoxyalkyl group, aryl group or hydroxyaryl group, where a part or all of R 1 to R 3 may be bonded with each other to form a ring, which may have a nitrogen atom, which may have an unsaturated bond and/or may have a substituent group, X is an anion, Q indicates a nitrogen atom or a phosphorus atom, Y 1 is a hydrocarbon group which may contain a hetero atom and m is an integer of 2 or more; wherein R 4 to R 7 may be the same or different and indicate an alkyl group, cycloalkyl group, hydroxyalkyl group, alkoxyalkyl group, aryl group or hydroxyaryl group, where R 4 and R 5 may be bonded with each other and form a ring which may have a nitrogen atom, which may have an unsaturated bond and/or which may have a substituent group, R 6 and R 7 may also be bonded to each other to form a ring, which may have a nitrogen atom, which may have an unsaturated bond and/or which may have a substituent group, Q indicates a nitrogen atom or a phosphorus atom, X is an anion, Y 2 and Y 3 may be the same or different and indicate a hydrocarbon group which contains a hetero atom and n is an integer of 1 or more); wherein a ring A indicates an aromatic ring of five or six members, the atoms forming the ring A may include a nitrogen atom, oxygen atom or sulfur atom, Q indicates a nitrogen atom or phosphorus atom, X is an anion, Y 2 and Y 3 may be the same or different and indicate a hydrocarbon group which contains a hetero atom and p is an integer of 1 or more.