The invention relates to a power battery and an electric motor.The power battery comprises a battery cell, a cover plate and a shell, the top of the shell is connected with the cover plate in a sealed mode, the shell is provided with a mounting cavity, and the mounting cavity is used for mounting the battery cell; the cover plate comprises a positive pole column, a negative pole column and an anti-explosion valve, the positive pole column and the negative pole column are arranged at an interval and form a discharge port, and a valve port of the anti-explosion valve directly faces the discharge port and is provided with a crossed notch groove part. According to the application, high-temperature gas and smoke dust generated by thermal runaway can break through the blasting weak part of the anti-explosion valve in a shorter time, so that the high-temperature gas and the smoke dust can be discharged from the blasting weak part of the anti-explosion valve in time, and the safety of the power battery is improved. In addition, the invention also has the advantage of low internal resistance.
本申请涉及一种动力电池和电动车,其中,动力电池包括电芯、盖板和壳体,所述壳体的顶部与所述盖板密封连接,所述壳体具有安装空腔,所述安装空腔用于安装所述电芯;所述盖板包括正极柱、负极柱、防爆阀,所述正极柱与所述负极柱间隔设置并形成排放口,所述防爆阀的阀口正对所述排放口以及,所述防爆阀的阀口设有交叉刻槽部。本申请能够使热失控所产生的高温气体和烟尘在更短的时间内,冲破防爆阀的爆破薄弱处,进而使得高温气体和烟尘能够及时从防爆阀的爆破薄弱排出,从而提高动力电池的安全性。此外,本申请还具有内阻低的优点。
Power battery and electric vehicle
动力电池和电动车
2022-11-04
Patent
Electronic Resource
Chinese
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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