Explosion-proof cover plate assembly of lithium ion battery

• Main Author: SUN FAJIONG
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses and provides an explosion-proof cover plate assembly of a lithium ion battery, which is compact in structure, good in explosion-proof effect and capable of prolonging the storage life of the battery. The explosion-proof cover plate assembly comprises a cover body, an opening is formed in the cover body and is communicated with the upper face and the lower face of the cover body, and an edge extending downwards is arranged at the lower edge of the opening; a film-coated rubber ring is arranged in the opening, the upper end of the edge is connected with the lower edge of the opening, and a closing opening is formed at the lower end of the edge; the closing opening of the edge holds the lower edge of the film-coated rubber ring, and the outer ring of the film-coated rubber ring is hermetically connected with the opening and the edge. The explosion-proof cover plate assembly also comprises a conductive column which is inserted into the center of the film-coated rubber ring, and the conduct