A deformation-constrained battery module structure based on lithium battery overcharge and discharge swelling

Abstract

The invention discloses a deformation-constrained battery pack module structure based on lithium battery overcharge and discharge swelling. Charge and discharge bulging exhaust mechanism, two bolts are provided and are respectively screwed to the left and right ends of the upper cover plate, and the upper cover plate is fitted on the upper end of the restraining box through the bolt clearance The air mechanism, the compression reset structure and the contact pressure exhaust structure cooperate to discharge the gas generated by the battery due to overcharging and discharging, so that the internal pressure of the battery is in a state of balance, preventing the battery from bulging and rupture, high safety, and the saltpeter. The material control structure and the water storage chamber cooperate with each other to control the amount of saltpeter falling each time to prevent excessive saltpeter from being wasted. The reaction between saltpeter and water absorbs heat, which consumes excess heat inside the battery, prevents the internal temperature of the battery from being too high, and prolongs the battery life. service life.

Description

technical field [0001] The invention relates to a battery pack module structure, in particular to a deformation-constrained battery pack module structure based on lithium battery overcharge and discharge swelling. Background technique [0002] A battery mainly refers to a container that converts chemical energy into electrical energy. There are many types of batteries, which are mainly divided into two categories, lithium batteries and lead batteries. The development of lithium batteries has been very mature. Lithium metal or alloys are used as negative materials. As a non-aqueous liquid material, there will be a problem during use; the chemical properties of lithium are lively and easy to burn. During the charging process of the battery, the internal temperature rises, and gas will be generated during overcharging and discharging, which will cause internal air pressure. If the pressure increases, the battery will bulge, and when the pressure reaches a certain level, the bat...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a deformation-constrained battery pack module structure based on lithium battery overcharge and discharge swelling, so as to solve the problem that the chemical property of lithium is active, easy to burn, and the internal temperature rises during battery charging. High, and gas will be generated during overcharging and discharging, which will increase the internal air pressure and make the battery bulge. When the pressure reaches a certain level, the battery will rupture, leak or even explode, which poses a safety hazard.

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