| 摘要 |
PROBLEM TO BE SOLVED: To minimize damages to the battery itself and influence to the surroundings by preventing a space between a positive electrode and a negative electrode which are adjacent to each other, from being affected by the internal short circuiting of the lithium ion secondary battery high in capacity. SOLUTION: In the lithium ion secondary battery, each positive electrode 2 where positive electrode active material 4 is applied to its single surface or both surfaces of its positive electrode current collector 5, and each negative electrode 3 where negative electrode active material 6 is applied to its single surface or both surfaces of its negative electrode current collector 7, are laminated via separators 8, and concurrently an electrode pair 24 composed of the positive electrode 2 and the negative electrode 3 is provided with an interface which does not permit the positive and negative electrode to be faced to each other at intervals of one pair or several pairs, and each heat radiation plate 26 provided with electrolyte resistance properties, is disposed in the interface. |
