Shell structure for reducing combustion probability based on lithium batteries

Abstract

The invention discloses a shell structure for reducing the combustion probability based on lithium batteries, and the shell structure comprises a shell, a sealing plate is arranged at the lower part of the shell, and eight groups of partition boards are fixedly arranged at the upper part of the sealing plate. The beneficial effects are as follows: through flame-retardant sand, when seven groups of lithium batteries are short-circuited and on fire, the outer flame temperature of open fire is too high, a plastic isolation cloth is baked, the flame-retardant sand falls down through a filter screen plate to cover the seven groups of lithium batteries, so that the open fire is isolated from oxygen, and combustion cannot be continued, and when the flame-retardant sand needs to be mounted, the shell is inverted, external threads and internal threads are meshed with each other, the filter screen plate is rotated anticlockwise, when the filter screen plate is separated from the shell, the filter screen plate is pulled out, the flame-retardant sand is poured into the filter screen plate, then the filter screen plate is reset, finally, the shell is turned over, installation of the flame-retardant sand is completed, and the foam glue plays a role in installing the plastic isolation cloth, by means of the set flame-retardant sand, seven groups of burning lithium batteries can be extinguished in time, and safety protection is brought to the use of the shell structure for reducing the combustion probability based on the lithium batteries.

Description

technical field [0001] The invention relates to the technical field of lithium battery shells, in particular to a shell structure based on lithium batteries that reduces the probability of combustion. Background technique [0002] Lithium battery is a kind of lithium metal or lithium alloy as the negative electrode material, which refers to the battery containing lithium (including metal lithium, lithium alloy and lithium ion, lithium polymer) in the electrochemical system, which can be roughly divided into lithium metal battery and lithium ion battery. There are two types of batteries. With the development of microelectronics technology at the end of the 20th century, the miniaturization of equipment is increasing, which puts forward high requirements for power supplies. Lithium batteries have entered a large-scale practical stage. Lithium batteries are often used in combination with shells. use. [0003] However, there are the following problems in the application of th...

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Problems solved by technology

[0003] However, there are the following problems in the application of the existing lithium battery casing structure: when the internal lithium battery short-circuits and catches fire, the open flame cannot be extinguished, and the lithium battery is further ignited and burned, causing the fire to further increase. The use of the lithium battery casing structure is safe. Second, when the external wire connected to the lithium battery catches fire, it cannot prevent the open flame from entering the interior of the lithium battery shell structure along the connecting wire. This situation will cause the lithium battery to burn and be damaged. When the plate is sealed, there is a small gap between the lithium battery shell structure and the metal plate, resulting in an unsealed environment inside the lithium battery shell structure, and the external air provides oxygen to the interior, causing the lithium battery to continue burning

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