Pole piece lithium supplementing auxiliary device and lithium supplementing equipment

By designing the lithium-ion supplementation auxiliary device in the lithium-ion supplementation equipment, the detection mechanism and flame-proof mechanism are used to monitor and control the environmental conditions around the pole-ion retracting roller in real time, the safety risk of metal lithium reaction is solved, and a safe and reliable lithium-ion supplementation process is achieved.

CN222690692UActive Publication Date: 2025-03-28SVOLT ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421345962.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-03-28
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

During the lithium replenishment process of existing lithium replenishment equipment, metal lithium reacts with water vapor in the air and active substances in the electrodes to release heat, resulting in a great safety risk of heat accumulation.

Method used

A lithium-ion auxiliary device for the electrode sheet is designed, including a electrode sheet coiling roller, a detection mechanism and a flame-proof mechanism. The detection mechanism detects the ambient temperature and combustible gas concentration around the pole sheet coiling roller in real time. The flame-proof mechanism lowers the ambient temperature and dilutes the combustible gas to prevent the pole sheet from combustling by blowing cooling medium around the pole sheet coiling roller in real time.

Benefits of technology

Effectively prevent the spontaneous combustion of the electrode sheet on the electrode sheet winding roller, reduce safety risks, and improve the safety and reliability of the lithium replenishment process.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of battery production, in particular to a pole piece lithium supplementing auxiliary device and lithium supplementing equipment, the pole piece lithium supplementing auxiliary device comprises a pole piece winding roller, a detection mechanism and a flame-proof mechanism, and the pole piece winding roller is used for winding a lithium-supplemented pole piece; the detection mechanism is arranged around the pole piece winding roller and used for detecting the environment temperature around the pole piece winding roller and the combustible gas concentration around the pole piece winding roller; the flame-proof mechanism is arranged around the pole piece winding roller and is used for blowing a cooling medium to the periphery of the pole piece winding roller. When the environment temperature is relatively high, the flame-proof mechanism blows cooling air to the periphery of the pole piece winding roller so as to cool the environment; when the concentration of the combustible gas is high, the flame-proof mechanism stops blowing the cooling air and blows the cooling inert gas at the same time, so that the concentration of the combustible gas in the surrounding environment of the pole piece winding roller is reduced, the pole piece on the pole piece winding roller does not meet the combustion condition, and therefore spontaneous combustion of the pole piece on the pole piece winding roller is effectively prevented.
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