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Device and method for liquid injection and liquid replacement of cylindrical batteries

A cylindrical battery, battery technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of liquid infiltration and discharge time prolongation, improve the efficiency of liquid injection or liquid exchange, improve liquid infiltration efficiency, improve The effect of fluid exchange efficiency

Active Publication Date: 2022-04-19
BEIJING HAWAGA POWER STORAGE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the diameter of the cylindrical lithium slurry battery in the winding mode can be 2-10 times the diameter of the traditional cylindrical lithium ion battery, and the thickness of the electrode sheet of the lithium slurry battery can reach the thickness of the electrode sheet of the traditional lithium ion battery 10-50 times, resulting in significantly longer liquid soaking and draining time required by the battery, so a simple and efficient solution needs to be found

Method used

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  • Device and method for liquid injection and liquid replacement of cylindrical batteries
  • Device and method for liquid injection and liquid replacement of cylindrical batteries
  • Device and method for liquid injection and liquid replacement of cylindrical batteries

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Embodiment Construction

[0070] The present invention will be further described through embodiments below in conjunction with the accompanying drawings.

[0071] figure 1 is a schematic diagram of a cylindrical battery according to an embodiment. Such as figure 1 As shown, the injection port 101 and the discharge port 102 of the cylindrical battery 1 are respectively arranged on the two opposite end surfaces of the battery case, and the injection port 101 and the discharge port 102 are both arranged at the center of the end surface, and the fluid injected into the cylindrical battery from the injection port 101 The winding part of the electric core can be entered through the flow opening on the side wall of the electric core. The positive pole 103 and the negative pole 104 are located on the same end surface of the battery case as the injection port 101, and the positive pole 103 and the negative pole 104 are deviated from the center of the end surface.

[0072] Figure 2(a)-2(e) It is a schematic...

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Abstract

The invention provides a liquid injection and liquid replacement device for a cylindrical battery, which is provided with an injection and discharge device and a battery rotation device. The battery rotating device can be connected and fixed with at least a part of the cylindrical battery, and the battery rotating device can be connected with the rotating shaft of the motor, so that the motor drives the battery rotating device to rotate and then drives the cylindrical battery to rotate. The drainage device includes a rotating part that rotates together with the cylindrical battery and a fixed part for docking with the external fluid storage device / fluid recovery device. The fixed part is sleeved on the rotating part and communicated with the internal fluid, so that the cylindrical battery rotates while enabling fluid communication with an external stationary fluid storage / fluid recovery device. Under the action of centrifugal force, the liquid injected into the cylindrical battery can fully soak the entire cell, or the liquid in the cell in the cylindrical battery can be thrown out and new liquid can be continuously injected to quickly replace the original liquid .

Description

technical field [0001] The invention relates to the field of batteries, in particular to a liquid injection and liquid replacement device and a liquid injection and liquid replacement method for cylindrical batteries. Background technique [0002] Lithium slurry battery is a new type of lithium-ion battery with low cost, long life, high safety and easy recycling. Since lithium slurry itself has a dynamic contact conductive network, it can avoid the loss or loosening of traditional lithium-ion battery electrode materials. Problems such as battery capacity decline and cycle life attenuation. Cylindrical lithium slurry batteries using a winding method can greatly simplify the processing technology of electrode sheets, and have obvious manufacturing cost advantages. [0003] One of the salient features of lithium slurry batteries is that the battery can be maintained and regenerated, so it needs to undergo multiple liquid injection and liquid replacement processes during its pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/609H01M50/691
CPCY02E60/10
Inventor 孙晨宇张彬何颖源谢晨王玉伟陈永翀
Owner BEIJING HAWAGA POWER STORAGE TECH
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