Lithium battery

A technology for lithium batteries and shells, which is applied to battery pack parts, circuits, electrical components, etc. It can solve problems such as troublesome battery disposal, environmental pollution, and shell damage, and reduce the difficulty of post-processing, improve sealing, and prevent leakage. Effect

Inactive Publication Date: 2014-04-02
叶小平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the safety of lithium batteries, explosion-proof wires are usually installed on the casing. When the internal pressure of the lithium battery is too high, the explosion-proof wires rupture to release gas and prevent the danger of lithium battery explosion. The application of such explosion-proof wires will cause the casing to If the body is damaged, battery leakage may occur, which will cause trouble for battery disposal and pollute the environment

Method used

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  • Lithium battery

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Embodiment Construction

[0012] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0013] Such as figure 1 As shown, the lithium battery disclosed in the present invention includes a casing 1, a thorn plate 2 and a pressure limiting plate 3, the pressure limiting plate 3 is arranged in the middle and upper part of the casing 1, and the thorn plate 2 is arranged at the lower part of the pressure limiting plate 3 Inside the casing 1 , an exhaust hole is provided on the casing 1 above the pressure limiting plate 3 . In the lithium battery disclosed in the present invention, through the provided stabbing plate and the pressure limiting plate, when the internal pressure of the battery is too high, the stabbing plate pierces the pressure limiting plate, a...

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Abstract

A lithium battery lithium battery disclosed in the invention comprises a shell, a stab plate and a pressure limiting plate, the pressure limiting plate is arranged at the middle and upper portion in the shell, the stab plate is arranged in the shell below the pressure limiting plate, and the shell over the pressure limiting plate is provided with a gas vent. A technical problem to be solved in the invention is increasing the safety of the lithium battery. The lithium battery adopting the stab plate and the pressure limiting plate arranged in the shell allows the pressure limiting plate to be stabbed when the internal pressure is too high in order to release a gas, so the safety of the lithium battery is guaranteed, the damage of the shell of the lithium battery is effectively avoided, and the liquid leakage, the environmental corrosion and pollution and the like are prevented.

Description

[0001] technical field [0002] The invention relates to a battery, especially a lithium battery. Background technique [0003] Lithium battery refers to a battery containing lithium (including metal lithium, lithium alloy, lithium ion, lithium polymer) in the electrochemical system. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally non-rechargeable and contain lithium in a metallic state. Li-ion batteries do not contain metallic lithium and are rechargeable. Lithium batteries usually come in two shapes: cylindrical and square. The inside of the battery adopts a spiral wound structure, and a very fine and highly permeable polyethylene film separator material is used to space the positive and negative electrodes. The positive electrode includes a current collector composed of lithium cobalt oxide (or lithium nickel cobalt manganese oxide, lithium manganate, lithium iro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M2/08H01M50/186H01M50/30
CPCH01M50/3425Y02E60/10
Inventor 叶小平
Owner 叶小平
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