Safety device for secondary charging battery assembly

Abstract

The invention provides a safety device for secondary charging battery assembly. The safety device for secondary charging battery assembly has the technical scheme that a positive pole (8) is arranged on the left side of the top end of a shell (7); a negative pole (10) is arranged on the right side of the top end of the shell; a carbonate horizon (6) is horizontally arranged inside the shell; an anti-explosion valve (9) is arranged between the positive pole (8) and the negative pole (10); a positive pole lug (11) is arranged under the positive pole (8); a negative pole lug (12) is arranged under the negative pole (10); a first battery cell (1), a second battery cell (2), a third battery cell (3), a fourth battery cell (4) and a fifth battery cell (5) are respectively and longitudinally arrayed in the shell (7). The safety device for secondary charging battery assembly is reasonable and practical in design, cannot cause fire or combustion when needling and extruding are carried out according to QC743-2006 forcible inspection standard, is safe and environmental-friendly, is beneficial to improving efficiency and saving energy, and is suitable to be popularized and used widely.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a safety device for assembling secondary rechargeable batteries. Background technique [0002] Secondary rechargeable batteries are closely related to human life. Various 3C products such as mobile phones, tablet computers, charging treasures, and cameras all need secondary rechargeable batteries as portable power sources. However, incidents of battery burning and harming the human body frequently occur. Since entering the era of green energy, lithium-ion batteries in secondary rechargeable batteries have been gradually used in pure electric vehicles (EV), hybrid electric vehicles (HEV) and plug-in hybrid electric vehicles (PHEV). Modernization has become the development trend of power batteries for vehicles, and safety performance is the basic requirement for power batteries for electric vehicles. The safety performance of batteries is inversely proportional to their c...

AI Technical Summary

Problems solved by technology

Since entering the era of green energy, lithium-ion batteries in secondary rechargeable batteries have been gradually used in pure electric vehicles (EV), hybrid electric vehicles (HEV) and plug-in hybrid electric vehicles (PHEV). Modernization has become the development trend of power batteries for vehicles, and safety performance is the basic requirement for power batteries for electric vehicles. The safety performance of batteries is inversely proportional to their capacity. The larger the capacity, the more hidden dangers in safety. In the case of higher and higher requirements for the cruising range of vehicles, a variety of high-energy positive and negative systems of large-capacity power batteries have emerged as the times require, but the shortcoming is the deviation in safety performance. The safety performance of high-energy power batteries has become a difficult problem for the industry

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