A battery pack

By using a conductive heat exchange device to directly contact the polarity terminals for heat dissipation, and combining the design of separators and insulating sealant layers, the problem of thermal runaway at the battery pack terminals is solved, achieving efficient temperature control and improved safety.

CN224366999UActive Publication Date: 2026-06-16D AUS ENERGY STORAGE TECH (XIAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
D AUS ENERGY STORAGE TECH (XIAN) CO LTD
Filing Date
2025-05-17
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing battery packs are prone to thermal runaway when the local heat at the terminals is too high, posing a safety hazard. Furthermore, traditional temperature control methods are inefficient and may cause short circuits and heat propagation.

⚗Method used

The conductive heat exchange device directly contacts the polar terminals of the individual cells for heat dissipation. The inner cavity of the battery pack is divided into a first and second sealed and isolated area by a separator. The conductive heat exchange device and polar terminals are covered with an insulating sealant layer. Combined with the explosion relief channel design, safety and structural compactness are improved.

🎯Benefits of technology

It effectively reduces the probability of thermal runaway in the battery pack, improves temperature control efficiency, avoids short circuits and thermal propagation, and enhances the safety and structural stability of the battery pack.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of battery pack, overcome the problem of excessive local heat of monomer battery pole in existing battery pack, and cause heat runaway. The battery pack includes shell assembly, at least one electrically conductive heat exchange device and battery pack string;The inner chamber of shell assembly is divided into first area and second area isolated from each other in z direction;First area is used to place at least one battery pack string, and the size of first area along x direction is compatible with the size of battery pack string along x direction;Second area needs to ensure that electrically conductive heat exchange device is located in second area as a whole;Electrically conductive heat exchange device corresponds to battery pack string one by one, and electrically conductive heat exchange device is connected with the part of each monomer battery polarity terminal located in first area;Second area is filled with insulating sealant layer, and at least a part of electrically conductive heat exchange device and each monomer battery polarity terminal is wrapped in insulating sealant layer.
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