| 摘要 |
PROBLEM TO BE SOLVED: To prevent degradation of battery performance due to lithium sticking prevention agent with which a metal lithium is never stuck to a blade member and which is applied to the blade member. SOLUTION: A nonwoven fabric 18 impregnated with a saturated hydrocarbon is arranged in sliding contact with a side face 14A of a cutter 14, and the hydrocarbon is applied from the side face 14A of the cutter 14 over to a blade tip 14b by means of the nonwoven fabric 18. When a lithium foil 12 is cut by means of the cutter 14, lithium is never adhered to the cutter 14, and even if the saturation hydrocarbon is adhered to the cut lithium foil 12, the hydrocarbon is removed by volatilization before the battery is assembled. |
