The invention discloses a power battery and an electric vehicle, the power battery comprises N winding cells connected in series and an electrolyte for soaking the N winding cells, and N is a positive integer greater than 1. Any two connected winding battery cells in the N winding battery cells are a first winding battery cell and a second winding battery cell, the first winding battery cell comprises a wound first anode, a first isolating membrane and a first cathode, the first isolating membrane is located between the first anode and the first cathode, the second winding battery cell comprises a wound second anode, a second isolating membrane and a second cathode, and the first cathode is located between the first anode and the second cathode. The second isolating membrane is located between the second anode and the second cathode, and the first anode is connected with the second cathode. The use of an aluminum shell is greatly reduced, and the cost is reduced; the occupied space of the aluminum shell is reduced, the space in the thickness direction of the battery can be fully utilized, and the energy density is improved; and the use amount of the pole columns can be reduced according to actual conditions, so that the material cost of the battery is reduced, and more design schemes for the number of the pole columns of the battery are provided.

    本发明公开了一种动力电池和电动汽车,动力电池包括串联的N个卷绕电芯以及浸泡N个卷绕电芯的电解液,N为大于1的正整数。N个卷绕电芯中任意连接的两个卷绕电芯为第一卷绕电芯和第二卷绕电芯,第一卷绕电芯包括卷绕的第一阳极、第一隔离膜和第一阴极,第一隔离膜处于第一阳极和第一阴极之间,第二卷绕电芯包括卷绕的第二阳极、第二隔离膜和第二阴极,第二隔离膜处于第二阳极和第二阴极之间,第一阳极和第二阴极连接。本申请大大减少了铝壳的使用,降低了成本;降低了铝壳的占用空间,可以充分利用电池厚度方向的空间,提升能量密度;极柱的用量可以根据实际情况进行减少,降低了电池的材料成本,也提供了更多的电池极柱数量设计方案。


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    Title :

    Power battery and electric automobile


    Additional title:

    一种动力电池和电动汽车


    Contributors:
    LIAO JINJUN (author)

    Publication date :

    2022-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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