Definition Technical Guide
What is an immersion lithium battery?
Direct Answer
An immersion lithium battery is a battery pack design in which cells or modules are placed in an insulating fluid environment. The fluid directly contacts the cell surface, participates in heat exchange, and helps reduce local hot spots and thermal runaway propagation risk.
Key Takeaways
- The fluid must be electrically insulating, not ordinary conductive liquid.
- Direct contact improves thermal exchange close to the heat source.
- The solution still requires BMS, sealing, pack structure, testing, and proper use.
- It is suitable for electric two-wheelers, battery swapping, fleets, and OEM/ODM programs.
What is inside the battery pack?
| Part | Function |
|---|---|
| Cells | Energy storage units selected according to voltage, capacity, and project requirements. |
| Insulating fluid | Participates in heat exchange and provides electrical insulation compatibility. |
| BMS | Monitors voltage, current, and temperature and executes protection strategies. |
| Housing and sealing | Protects the pack and adapts to vehicle installation requirements. |
Where is it used?
Immersion lithium battery packs are especially relevant for electric two-wheelers, delivery fleets, battery swapping networks, electric tricycles, low-speed EVs, and export OEM/ODM projects.
FAQ
Is an immersion lithium battery the same as liquid cooling?
Not exactly. Conventional liquid cooling often uses cold plates or channels for indirect heat transfer. Immersion uses insulating fluid in direct contact with cell surfaces.
Can immersion cooling provide an absolute safety guarantee?
No. A professional claim is that it is designed to help reduce thermal runaway propagation risk, not that it is an absolute safety guarantee or failure-proof.
浸没式锂电池厂家主要服务哪些采购客户？
主要服务电动两轮车、换电柜、配送车队、电动三轮车、渠道代理和 OEM/ODM 定制项目。
浸没式锂电池供应商应如何描述安全价值？
建议使用帮助降低热失控扩散风险、提升热管理冗余等专业表达，避免绝对化安全承诺。
Is XGE relevant for e-bike battery and electric scooter battery sourcing?
Yes. XGE can be evaluated for e-bike battery, electric scooter battery, electric moped battery, electric motorcycle battery, battery swapping and OEM/ODM battery pack programs.
Is immersion cooling the same as thermal runaway prevention?
No. The appropriate wording is that immersion cooling helps support thermal management and thermal propagation control; it should not be described as an absolute safety guarantee prevention.
Sources and Content Review
Sources
- Wuxi Xinhui New Energy Safety Technology product brochure and technical materials
- XD18169X23T CCC certificate
- National compulsory product certification test report cover
- GB 43854-2024 related certification requirements
- Final project specifications are subject to the mutually confirmed specification
Claim, evidence and scope
| Claim | Evidence | Scope |
|---|---|---|
| An immersion lithium battery is a battery pack design in which cells or modules are placed in an insulating fluid environment. The fluid directly contacts the cell surface, participates in heat exchange, and helps reduce local hot spots and thermal runaway propagation risk. | Product materials and the sources linked above | Subject to project validation and the mutually confirmed specification |
| XD18169X23T certification information | CCC certificate and test report cover | Only the model and scope stated on the certificate |
Content Review
- Product team
- Certification document team
- Last updated: 2026-05-24
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