The embodiments of the present application provide an end cover assembly, a battery unit, a battery, and an electricity consuming apparatus. The end cover assembly includes an end cover, a pressure relief mechanism, and a protective sheet. The end cover includes a main body part and a protruding part which protrudes from the main body part along the thickness direction of the end cover. The end cover is provided with a through hole which passes through the main body part and the protruding part. The pressure relief mechanism is disposed on a side of the main body part away from the protruding part and covers the through hole. The pressure relief mechanism is configured to activate to release the internal pressure through the through hole when the internal pressure of the battery unit reaches a threshold. The protective sheet is attached to a surface of the protruding part away from the main body part and covers the through hole. The protruding part includes a first convex part and a second convex part. The first convex part is arranged around the through hole, the second convex part is arranged around the outer side of the first convex part, and a first concave part is formed between the first convex part and the second convex part. The first concave part communicates the through hole with the external space of the end cover. The present application can reduce the risk of the corrosion of the pressure relief mechanism and improve the safety.
END CAP ASSEMBLY, BATTERY CELL, BATTERY AND POWER CONSUMING DEVICE
ENDKAPPENANORDNUNG, BATTERIEZELLE, BATTERIE UND STROMVERBRAUCHENDE VORRICHTUNG
ENSEMBLE CAPUCHON D'EXTRÉMITÉ, ÉLÉMENT DE BATTERIE, BATTERIE ET DISPOSITIF CONSOMMATEUR D'ÉNERGIE
2025-04-16
Patent
Electronic Resource
English
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 |
TOP COVER ASSEMBLY, BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE
European Patent Office | 2025
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