Automatic cover safety valve device for production of storage battery

Abstract

The invention discloses an automatic cover safety valve device for production of a storage battery and a safety valve. The structure of the automatic cover safety valve device comprises a lithium battery main body and a safety valve device. The lithium battery main body is provided with a lithium battery slurry cavity and an anode connection head. The safety valve device is provided with a pressure induction device, a power failure protection device, a pressure release device and a chemical gas filtering device. A safety air bag is promoted to expand by the pressure in a battery, a power-on trough plate and a connection plate are pushed to open when the safety air bag is expanded, a circuit is disconnected, an air outlet hole is opened through movement of a moving sealing strip, the rest of pressure in the battery is discharged and chemicals contained in the gas are filtered to avoid the chemical reaction of the chemicals in the air to cause fire or explosion, and therefore, in a condition with no need for damaging of circuit connection, the battery can be used continuously after the pressure is discharged to avoid waste of the battery.

Description

technical field [0001] The invention relates to the field of accumulators, in particular to an automatic cover safety valve device and a safety valve used in the production of accumulators. Background technique [0002] Lithium batteries are widely used in the field of electronic products. Many people still have concerns about the use of lithium batteries. They think that lithium batteries will explode when the internal pressure of the battery is too high, which poses a safety hazard. In fact, a safety valve is installed inside the current lithium battery. When the pressure inside the battery is too high, the safety valve on the top of the battery will open to exhaust and reduce pressure to avoid explosion. [0003] Aiming at the current battery safety valve equipment, a relative plan has been formulated for the following problems: [0004] The existing lithium battery will be equipped with a safety valve. The working principle is that when the internal pressure of the batt...

AI Technical Summary

Problems solved by technology

[0004] The existing lithium battery will be equipped with a safety valve. The working principle is that when the internal pressure of the battery is too high, the internal circuit connection bar will be broken by the protrusion in the middle of the positive electrode inside the battery, so as to perform a power-off protection device to prevent the lithium battery from exploding. Damage the human body and release the pressure inside the battery at the same time, but when the circuit connection strip is broken, it will not be able to reconnect, and the battery will be scrapped, resulting in waste

Images