| 摘要 |
A lithium secondary battery includes an electrode body obtained by winding or laminating a positive electrode and a negative electrode via a separator, and a non-aqueous electrolyte solution. The battery satisfies the following Equation (1): E 0 /Cp + T 1 = T 2 <t ... (1) where E 0 (J/g) is energy quantity per unit weight at the time of full charging of said battery; Cp (J/°C·g) is the specific heat of said battery; T 1 (°C) is a normal use temperature of said battery; T 2 (°C) is the highest elevated temperature of said battery; and t (°C) is the lowest temperature at which said battery falls into an unsafe state. |
