| 摘要 |
A lithium-ion secondary battery (100) includes a positive electrode mixture layer (223) coated on a positive electrode current collector (221), a negative electrode mixture layer (243) coated on a negative electrode current collector (241), and an electrolyte solution containing lithium ions at a predetermined concentration. The number of lithium ions X in the electrolyte solution impregnated per 1 cm3 of the positive electrode mixture layer (223) and the number of lithium ions Y in the electrolyte solution impregnated per 1 cm3 of the negative electrode mixture layer (243) are both 3.75×1019 or greater. |
