The patent abstract shows that the power battery includes: multiple rows of cells, multiple liquid cooling plates, liquid inlet components and liquid output components. Both sides of each row of cells are attached with liquid cooling plates. The cold plate has a liquid inlet, a liquid outlet, and an internal passage connecting the liquid inlet and the liquid outlet; the liquid inlet assembly is connected to each liquid inlet, and is used to deliver cooling liquid to the liquid cold plate; the liquid outlet assembly is connected to each The two liquid outlets are connected to receive the cooling liquid discharged from the liquid cold plate.

The power battery of this utility model embodiment is equipped with liquid cooling plates on both sides of each row of cells so that each row of cells can be cooled by two liquid cooling plates, the cooling area is large, and the cooling efficiency is greatly improved. , improve the service life, safety performance and fast charging performance of the battery.

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