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Liquid injection industrial installation for the column lithium ion battery

A lithium-ion battery, cylindrical technology, applied in the field of battery liquid injection tooling, can solve the problems of difficult liquid injection, reduced production efficiency, etc., and achieve the effects of high liquid injection quality, simple structure, and convenient maintenance.

Inactive Publication Date: 2007-08-15
TIANJIN LISHEN BATTERY
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Problems solved by technology

In the above process, as the capacity of the battery continues to increase, the density of the material in the battery is getting higher and higher, and with the renewal of the electrode material, the gaps in the electrode material become smaller, when the electrolyte After entering, the vacuum is drawn at this time, and the tiny air bubbles in many gaps cannot be released under the pressure of the electrolyte, which makes it difficult to inject liquid and reduces production efficiency

Method used

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  • Liquid injection industrial installation for the column lithium ion battery

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] The structure of the liquid injection tooling for cylindrical lithium-ion batteries of the present invention is shown in Figure 1-1 and Figure 1-2, including a sealing ring 1 arranged outside the lower end of the cylindrical tube 2, and the inside of the cylindrical tube 2 A layered plate 4 is provided, the outer edge of the layered plate 4 is in sealing connection with the inner wall of the cylindrical tube 2 , and a small hole 3 is arranged on the layered plate 4 . The small hole 3 is preferably arranged in the middle of the layered plate 4 . For the convenience of processing, the layered plate 4 and the cylindrical tube 2 are preferably integrally structured.

[0017] Fig. 2-1 and Fig. 2-2 respectively show that the prior art and the technological process of using the liquid injection tooling of the cylindrical lithium-ion ...

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Abstract

The disclosed liquid-injecting device for cylinder Li-ion cell comprises: a sealing ring set on outside of the cylinder bottom, a layering plate arranged in the cylinder to sealing connect with the cylinder wall, and a small hole on middle of the plate. Wherein, the layering plate is integrated with the cylinder. This invention avoids the electrolyte enters into cell between vacuumizing and recovering air pressure to cut the injection time, and special fit to the production of large-capacity high-density cylinder cell.

Description

technical field [0001] The invention relates to a battery production tool, in particular to a battery liquid injection tool. Background technique [0002] In order to adapt to the rapid development of products in the current electronics industry, the market's demand for large-capacity batteries is very urgent. The manufacturing process of the cylindrical lithium-ion battery in the prior art includes the following steps in sequence: installation of liquid injection tooling—liquid injection—vacuumizing—restoration of atmospheric pressure—standstill. In the above process, as the capacity of the battery continues to increase, the density of the material in the battery is getting higher and higher, and with the renewal of the electrode material, the gaps in the electrode material become smaller, when the electrolyte After entering, the vacuum is drawn at this time, and the tiny air bubbles in many gaps cannot be released under the pressure of the electrolyte, which makes it diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/36H01M10/36H01M10/40H01M6/14H01M50/609
CPCY02E60/122Y02E60/10
Inventor 崔少华王凤跃魏丽雅
Owner TIANJIN LISHEN BATTERY
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