| abstract |
An object of the present invention is to provide a lithium battery with improved energy density. The positive electrode includes a positive electrode current collector made of metal having a hollow skeleton in the shape of a three-dimensional mesh, and a negative electrode collector made of a metal, Wherein the nonaqueous electrolyte comprises an ionic liquid and a lithium salt, and the ionic liquid is a cationic ionic liquid, wherein the ionic liquid is a cationic ionic liquid, And an anion, and the concentration of the lithium salt in the non-aqueous electrolyte is 0.8 to 6.2 mol / L. |