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Battery steel shell and insulating method and battery thereof

A battery steel shell and battery cell technology, applied in the battery steel shell and its insulation method and the field of batteries, can solve problems such as battery performance deterioration, and achieve the effects of improving performance and capacity, preventing danger, and improving safety performance.

Inactive Publication Date: 2010-10-06
SHENZHEN HIGHPOWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to propose a battery steel case that improves the performance of the battery and is safe for the above-mentioned problem that the insulation gasket placed on the steel case will cause the battery performance to deteriorate and cause danger.

Method used

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  • Battery steel shell and insulating method and battery thereof
  • Battery steel shell and insulating method and battery thereof
  • Battery steel shell and insulating method and battery thereof

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Embodiment Construction

[0020] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] figure 1 It is a schematic diagram of the battery steel shell structure in an embodiment. figure 2 Is used in an embodiment figure 1 The battery structure diagram of the battery steel case shown.

[0022] Combine figure 1 with figure 2 The battery steel shell includes a shell 110, an inner cavity 120 of the shell, an upper insulating layer 130 and a lower insulating layer 140.

[0023] The internal space of the housing cavity 120 is adapted to the size of the battery core 210 for placing the battery core 210. The upper insulating layer 130 is located on the top inner wall of the casing 110 and surrounds the inner wall of the casing 110 to isolate the upper part of the cell 210 from the casing 110 and insulate the two. The lower insulating layer 140 is located on the inner wall of the bottom of the casing 110 and covers the bottom of t...

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Abstract

The invention relates to a battery steel shell, an insulating method thereof and a battery using the same. The battery steel shell comprises a shell, a shell inner cavity and an upper insulating layer which is formed at the inner wall of the top of the shell and is used for being insulated from the upper part of a battery cell. In the invention, a traditional insulation spacer with equivalent thickness is replaced by the upper insulation layer formed on the inner wall of the top of the battery steel shell to insulate from the battery cell without occupying a battery air chamber and excessive space inside the battery, thereby increasing the space of the air chamber and the inside of the battery and improving the performance and the capacity of the battery. When the battery is short-circuited, the upper insulated layer cannot block an explosion-proof hole and a large amount of gases generated due to the short circuit of the battery are smoothly exhausted through the explosion-proof hole, thereby preventing the battery from exploding, avoiding the generation of risks and greatly improving the safety performance of the battery.

Description

【Technical Field】 [0001] The invention relates to a battery device, in particular to a battery steel shell, an insulation method thereof, and a battery. 【Background technique】 [0002] The entire shell of the ordinary battery steel shell is conductive. In order to prevent the positive electrode inside the cell from contacting the shell and cause zero electricity, insulating gaskets must be placed on the bottom and top of the cell. [0003] However, placing the insulating sheet is a separate step in the battery manufacturing process and requires a lot of manpower. In high-capacity batteries, the use of the space inside the battery is close to the limit. The insulating gasket has a large thickness. The placement of the insulating gasket takes up the internal space of the battery, which reduces the battery power and makes the air chamber space very narrow. Safety performance deteriorates. At the same time, because the material of the insulating gasket is PVC or other high molecular ...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M2/12H01M10/00H01M6/00H01M50/119H01M50/164H01M50/342
Inventor 邹剑平孔令坤廖兴群李文良
Owner SHENZHEN HIGHPOWER TECH CO LTD
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