High-capacity battery shell, high-capacity battery with shell and series battery pack

• Main Authors: LEI ZHENGJUN, ZHAI TENGFEI, ZHANG SANXUE, HAN XIAOYU
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The utility model relates to a large-capacity battery shell and a large-capacity and series battery pack with the shell, the large-capacity and series battery pack comprises cover plates and a cylinder, the cover plates comprise a first cover plate and a second cover plate which are respectively a positive electrode and a negative electrode of a battery, the cover plates and the cylinder enclose to form the battery shell, and the cover plates are in insulation connection with the cylinder; a deformable connecting part is arranged between the cover plate and the cylinder body, and the deformable connecting part has conductivity; in the first state, the deformable connecting part enables the cover plate and the cylinder body to keep insulation connection. And in the second state, the deformable connecting part deforms, so that the cover plate is electrically connected with the cylinder body. When the batteries are in thermal runaway, the deformable connecting part deforms, so that the cover plate is electricall