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Square lithium ion battery shell and square lithium ion power battery using same

A technology for lithium ion batteries and battery casings, applied in battery electrodes, electric vehicles, secondary batteries, etc., can solve problems such as high sealing requirements, poor heat dissipation, and easy damage, and achieve increased vibration and impact capacity, bulging Phenomenon suppression and cycle life improvement effect

Inactive Publication Date: 2012-01-11
SHANGHAI AEROSPACE POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lithium-ion battery shells in the prior art mainly have three types, metal shells, plastic shells and aluminum-plastic composite film shells. Although plastic shells can resist electrolyte corrosion, they are prone to deformation, have poor flame retardancy, and poor heat dissipation; and The aluminum-plastic composite film casing has high requirements on the sealing performance in the battery manufacturing process, and is prone to damage. The material cost and production cost of the metal casing are relatively high, and the sealing performance is excellent. It is currently widely used in the field of lithium-ion power batteries

Method used

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  • Square lithium ion battery shell and square lithium ion power battery using same
  • Square lithium ion battery shell and square lithium ion power battery using same
  • Square lithium ion battery shell and square lithium ion power battery using same

Examples

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Embodiment 1

[0054] 1. Fabrication of lithium-ion battery case

[0055] figure 1 Represents the outline drawing of the lithium-ion battery casing, the lithium-ion battery casing made according to the present invention includes a battery casing cover 1, a battery casing body 2 and a battery bottom plate 3; the casing body 2 has a predetermined space for accommodating the casing cover 1, and the casing cover 1 and The bottom plate 3 is respectively welded with the shell body 2 to form a whole.

[0056] Figure 2a It is an exploded view of the battery case cover 1. The battery case cover 1 is constructed in this way, that is, including the pole 4, the gasket 5, the upper cover plate 6, the insulating pad 7, the tab 8, the fastening screw 9 and the liquid injection 10, place the gasket 5 under the pole 4, and make it closely contact with the upper cover plate 6. There is a round through hole on the upper cover plate 6, and place the insulating pad 7 and the pole ear 8 on the upper cover plat...

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Abstract

The invention relates to the technical field of lithium ion batteries, and particularly discloses a square lithium ion battery shell. The square lithium ion battery shell comprises a shell cover, a shell body and a bottom plate; the shell body is provided with a predetermined space for accommodating the shell cover; the shell cover and the bottom plate are respectively and fixedly connected with the shell body to form a whole; the shell cover is provided with a pole post; and an internal thread and an external thread are arranged in the pole post. The invention also discloses a square lithium ion powder battery using the battery shell. The square lithium ion battery shell and the square lithium ion powder battery using the same are particularly suitable for occasions, on which massive connection in series or parallel and long-term vibration occur, such as an energy storage powder supply, a vehicle powder battery, an electric bicycle, a motorcycle and the like.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a square lithium-ion battery casing; in addition, the invention also relates to a lithium-ion power battery using the aforementioned casing. Background technique [0002] Lithium-ion battery shells in the prior art mainly have three types, metal shells, plastic shells and aluminum-plastic composite film shells. Although plastic shells can resist electrolyte corrosion, they are prone to deformation, have poor flame retardancy, and poor heat dissipation; and The aluminum-plastic composite film casing has high requirements on the sealing performance during the battery manufacturing process, and is prone to damage. The material cost and production cost of the metal casing are relatively high, and the sealing performance is excellent. It is currently widely used in the field of lithium-ion power batteries. [0003] Chinese patent CN201243029Y disclosed a lithium-ion powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M2/30H01M2/04H01M10/0525H01M4/136H01M4/131H01M4/58H01M4/525H01M4/505
CPCY02E60/122Y02T10/7011Y02E60/10
Inventor 侯敏赵文鹏曹辉李克俭王东杨玉光
Owner SHANGHAI AEROSPACE POWER TECH
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