Lithium ion battery

A lithium-ion battery and cell technology, applied in secondary batteries, battery pack components, circuits, etc., can solve the problems of high cost, poor structural versatility, complex packaging process, etc., and achieve low input cost and good structural versatility. , The effect of simplifying the assembly process

Active Publication Date: 2010-09-08
BYD CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is that the lithium-ion battery packaging process

Method used

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[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0015] see figure 1 and figure 2 , the embodiment of the present invention provides a lithium ion battery, including a battery cell 1, a top cover 2, a protection circuit board 3 and a bracket 4, the top cover 2 is arranged on the bracket 4, and the protection circuit board 3 is arranged on the top cover 2 and the bracket 4. between. A first installation hole 41 is formed in the bracket 4 , a second installation hole 42 communicated with the first installation hole 41 is formed on the battery core 1 , and the bracket 4 passes through the first, second instal...

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Abstract

The invention provides a lithium ion battery which comprises an electric core, a top cover, a protective circuit board and a bracket, wherein the top cover is arranged on the bracket, the protective circuit board is arranged between the top cover and the bracket, the bracket is provided with a first mounting hole, a second mounting hole communicated with the first mounting hole is arranged on theelectric core, and the bracket is fixed on the electric core by penetrating and arranging a connecting piece in the first mounting hole and the second mounting hole. During packaging, the connecting piece is penetrated and arranged in the first mounting hole and the second mounting hole, the bracket is fixed on the electric core, and then the top cover and the protective circuit board are arranged on the bracket, thereby realizing the packaging of the lithium ion battery. Compared with the prior art, the technical scheme fixes the bracket by the connecting piece, simplifies the assembly process, enhances the production efficiency, does not need to invest specific equipment and molds for each style of concrete products and has low investment cost. Furthermore, the connecting piece is packaged inside the invention, the structural appearance is attractive, the invention has no requirement to the polar position of the protective circuit board, and the structural versatility is better.

Description

technical field [0001] The invention belongs to a battery, in particular to a lithium ion battery. Background technique [0002] As a high-capacity, high-output, safe, environmentally friendly, and pollution-free rechargeable battery, lithium-ion batteries have been widely used in electronic equipment in recent years, and have become the standard configuration of electronic equipment such as mobile phones. [0003] At present, most lithium-ion batteries have omitted the plastic casing, and the upper and lower ends of the cell are respectively provided with end caps (ie, the top cover and the bottom cover). The common packaging structures include the following four: [0004] Glue-filling structure: The end cap is made of the whole glue-filling method, and the battery protection circuit board is glued between the end cap and the battery core. The defects of this method are: the firmness of the combination between the end cap and the cell is low; the processing temperature is ...

Claims

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Application Information

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IPC IPC(8): H01M10/36H01M10/40H01M10/38H01M2/10H01M50/271H01M50/287
CPCY02E60/12Y02E60/10Y02P70/50
Inventor 冷陈伟
Owner BYD CO LTD
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