| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode structure of a battery using a thin electrode, capable of reducing a temperature difference inside the battery. SOLUTION: An electrode 10 is fixed to a battery case 14, via an insulation member 16. For the electrode 10, a cavity path opened to the outside of a battery case at both ends is formed. For this electrode 10, a battery is formed by winding a positive and a negative electrode sheet via a separator. The heat generated during battery charging and discharging is discharged from the surface of the battery case 14 and discharged from a cavity path 12 of the electrode 1, and a temperature difference inside the battery can be reduced. |
