Battery cover plate structure realizing multiple circuit breaker protection and pressure release, and battery

• Main Authors: FAN HONGBIN, LI JIANJU
• Format: Patent
• Language: Chinese; English
• Published: 25.08.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a battery cover plate structure realizing multiple circuit breaker protection and pressure release, and a battery. The battery cover plate structure comprises a first thermal deformation piece, a cover plate, a positive pole structure and a negative pole structure, wherein the positive pole structure is fixed on and electrically connected with one end of the cover plate, the negative pole structure is fixed on and insulated from the other end of the cover plate, an anti-explosion film and a short circuit valve are arranged on the cover plate, the anti-explosion film is broken through when being subjected high pressure, and the short circuit valve is ejected outward; a second thermal deformation piece is also arranged on the cover plate, and the second thermal deformation piece is heated and deformed to puncture the anti-explosion film; the first thermal deformation piece is fixedly arranged into one of the cover plate and the negative pole structure and is propped against the other one