The invention relates to a battery cell adapter piece, a power battery and an electric vehicle, the battery cell adapter piece comprises a fuse wire, a first conductive part and a second conductive part, one end of the first conductive part is used for being electrically connected with a tab, and the other end of the first conductive part extends along the height direction of a battery cell lamination and is electrically connected with the second conductive part; and the fuse wire is arranged between the first conductive part and the second conductive part, one end of the fuse wire is electrically connected with the first conductive part, the other end of the fuse wire is electrically connected with the second conductive part, and the second conductive part is further used for being connected with a battery cell pole. Through the fuse wire, when high-temperature gas is generated due to thermal runaway caused by external short circuit, internal short circuit or overcharge of the battery cell, the generated high-temperature gas triggers the fuse wire to automatically fuse, so that an electrical loop in front of the positive electrode and the negative electrode in the battery cell is cut off, generation of a heat source is cut off, and thermal runaway of the battery cell is avoided.
本申请涉及一种电芯转接片、动力电池和电动车,其中,电芯转接片包括熔断丝、第一导电部和第二导电部,第一导电部的一端用于与极耳电性连接,第一导电部的另一端沿电芯叠片高度方向延伸并与第二导电部电性连接;以及,熔断丝设置在第一导电部和第二导电部之间,其中,熔断丝的一端与第一导电部电性连接,熔断丝的另一端与第二导电部电性连接,第二导电部还用于与电芯极柱连接。本申请通过熔断丝,能够在电芯外部短路、内短路或者过充等造成热失控而产生高温气体时,使产生高温气体触发熔断丝自动熔断,进而切断电芯内部正负极之前的电气回路,进而切断热源的产生,从而避免电芯热失控的发生。
Battery cell adapter plate, power battery and electric vehicle
电芯转接片、动力电池和电动车
2022-08-30
Patent
Elektronische Ressource
Chinesisch
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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