TOP COVER OF POWER BATTERY AND POWER BATTERY

This application provides a top cover of a power battery and a power battery. The top cover of the power battery includes a top cover sheet, a first electrode unit and a second electrode unit, the first electrode unit includes a turning sheet, an insulating piece and a current cutting-off structure,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DENG, Pinghua, LI, Quankun, ZHU, Lingbo, WANG, Peng, GUO, Jian
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	This application provides a top cover of a power battery and a power battery. The top cover of the power battery includes a top cover sheet, a first electrode unit and a second electrode unit, the first electrode unit includes a turning sheet, an insulating piece and a current cutting-off structure, the current cutting-off structure is fixed in a radial projection range of an assembling hole and is electrically connected with the top cover sheet, the turning sheet is fixed at an underneath of the top cover sheet through the insulating piece, the turning sheet is electrically connected with the top cover sheet merely through the current cutting-off structure, and the turning sheet is capable of turning and breaking the current cutting-off structure when an internal pressure of the power battery exceeds a reference pressure, so as to cut off an electrical connection of the current cutting-off structure with the top cover sheet. The power battery includes the top cover of the power battery. The power battery provided by the present application can improve energy density of the battery.