Patent ID: 8222515

Claim:
An electrolyte for a photoelectric conversion element comprising an ionic liquid (A), a carbon material (B), and another carbon material (C) aside from the carbon material (B), wherein the carbon material (B) is a carbon material (B1) displaying a pH, measured by a pH measuring method specified in Japanese Industry Standard (JIS) Z8802, of from 2 to 6 and/or a boron-modified acetylene black (B2), a content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A), the other carbon material (C) is a carbon material (C1) having a specific surface area of from 1,000 to 3,500 m 2 /g or a carbon black (C2) having a nitrogen adsorption specific surface area not less than 90 m 2 /g, and a content of the other carbon material (C) is less than 10 parts by mass per 100 parts by mass of the ionic liquid (A).