Take single core nickel piece of overcurrent protection

The utility model relates to a battery field especially relates to take single core nickel piece of overcurrent protection. Contain the nickel piece, contain the anodal bellied accommodation hole of battery tip on the nickel piece, still contain the louvre on the nickel piece, the louvre is welding the copper flow of preventing, prevented that the flow contained horizontal basis piece, the tip piece is still being connected through the reducing part to the basis piece, and the copper sheet of reducing part can fuse when the electric current is too big, and the tip piece can contact the battery top. Beneficial effect: thermal fuse can be sent out in the position that the sectional area is little when the heavy current passes through, plays the guard action that opens circuit, can play current overload protector, single core nickel piece can reduce material cost, reduces module weight. 本实用新型涉及电池领域，尤其涉及带过流保护的单芯镍片。包含镍片，镍片上包含电池端部的正极凸起的容纳孔，所述镍片上还包含散热孔，所述散热孔焊接着铜质的防过流片，所述防过流片包含横向的基础片，基础片还通过变径部分连接着端部片，当电流过大的时候变径部分的铜片会