A lithium deposition auxiliary system for a lithium battery, a battery system and a vehicle

By synergistically regulating lithium-ion transport using acoustic and electromagnetic fields, the problem of lithium dendrite growth was solved, achieving uniform lithium-ion deposition and improving the lifespan and safety of solid-state lithium batteries.

CN122291733APending Publication Date: 2026-06-26MERCEDES BENZ GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MERCEDES BENZ GRP
Filing Date
2026-04-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies are unable to effectively suppress the growth of lithium dendrites, especially in solid electrolytes with high mechanical strength, where lithium dendrites can still penetrate the electrolyte, causing short circuits and safety hazards.

Method used

By combining a sound field generator and an electromagnetic field generator, the direction of lithium ion transport and deposition position can be dynamically controlled. The synergistic effect of sound waves and electromagnetic fields can be used to control the uniform deposition of lithium ions and avoid the formation of lithium dendrites.

Benefits of technology

It significantly improves the uniform deposition of lithium ions, suppresses the growth of lithium dendrites, enhances the cycle life and safety of solid-state lithium batteries, reduces interface impedance, and is adaptable to various electrolyte systems and battery structures.

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Abstract

This invention discloses a lithium deposition auxiliary system, a battery system, and a vehicle for lithium batteries, relating to the field of lithium battery technology. The lithium deposition auxiliary system may include: a sound field generating device, a sensing device connected to the lithium battery, and a control device connected to both the sound field generating device and the sensing device. The sound field generating device is disposed on a portion of the side of the lithium battery. The sensing device is used to detect the performance parameters of the lithium battery. The control device is used to control the sound field generating device to generate sound waves based on the performance parameters detected by the sensing device, wherein the transmission direction of the sound waves is perpendicular to the lithium-ion transmission direction of the lithium battery. This lithium deposition auxiliary system enables uniform distribution of lithium ions, effectively suppresses lithium dendrite growth, and improves the cycle life and safety of the lithium battery.
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