Battery infiltration device and system

By using a pressurized vibration device in the manufacturing of lithium-ion batteries, combined with ultrasonic waves and negative pressure environments, the problem of uneven infiltration of electrolyte is solved, efficiency and safety are improved, and costs are reduced.

CN222146306UActive Publication Date: 2024-12-10BYD CO LTD
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Patent Information

Application Number
CN202323606295.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-27
Publication Date
2024-12-10
Estimated Expiration
2033-12-27

AI Technical Summary

Technical Problem

During the manufacturing process of lithium-ion batteries, uneven infiltration of electrolytes leads to safety hazards of the battery cell, low production efficiency and high cost.

Method used

The pressurized vibration device is adopted, combined with ultrasonic vibration and negative pressure environment, shortens the infiltration time of the electrolyte and improves the infiltration uniformity and efficiency.

Benefits of technology

The electrolyte infiltration time is shortened, the electrolyte utilization rate is improved, the production cost is reduced, and the safety performance of the battery cell is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery infiltration, and discloses a battery infiltration device. The battery infiltration device comprises: a box body suitable for accommodating a liquid medium and a gas medium; the negative pressure bin is arranged in the upper space in the box body and is used for accommodating the gas medium; the ultrasonic generator is arranged in the box body; and the loading part is used for placing the battery cell. Through ultrasonic vibration and the provision of a negative pressure environment, the time for effectively infiltrating a pole piece and a diaphragm by an electrolyte can be shortened, the waste of the electrolyte is reduced, and the infiltrating uniformity and the utilization rate of the electrolyte are favorably improved, so that the production cost is reduced, and the safety performance of a battery cell is improved.
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