Top 7 China Battery Thermal Management Companies 2025
Battery thermal management is critical for EV safety, range and battery life. China's thermal management market for batteries has reached $15 billion, driven by the world's largest EV market and advanced battery technology development.
Top Companies
Sanhua Intelligent Controls
Global leader in thermal management components including electronic expansion valves, heat exchangers and chillers.
Joyson Electronics
Provides integrated battery thermal management systems for major EV manufacturers including BMW and VW's Chinese JVs.
Bergstrom China
Specializes in thermal management systems for commercial vehicles and electric buses with advanced cooling solutions.
Sanda Technology
Leading Chinese manufacturer of battery cooling plates, cold plates and liquid cooling systems for EV packs.
Kangsheng Thermal
Produces thermal management components including water pumps, heat exchangers and cooling modules for EVs.
Songz Automobile
Major automotive thermal systems provider covering AC, battery cooling and heat pump integration for EVs.
Aotecar
Specialized in EV heat pump air conditioning systems and integrated thermal management for battery packs.
Comparison
| Company | Revenue | Core Product | Key Clients |
|---|---|---|---|
| Sanhua Controls | $3B+ | Thermal Components | Global EV OEMs |
| Joyson Electronics | $3B+ | Integrated Systems | BMW, VW |
| Songz Automobile | $1.5B+ | Auto Thermal | Chinese OEMs |
| Sanda Technology | $800M+ | Cooling Plates | CATL, BYD |
| Bergstrom China | $500M+ | Commercial EV | Bus OEMs |
| Kangsheng Thermal | $600M+ | Pumps/HX | Tier 1 Supply |
| Aotecar | $400M+ | Heat Pump AC | EV Startups |
Frequently Asked Questions
Why is battery thermal management important for EVs?
Battery thermal management maintains optimal temperature (15-35°C) for lithium-ion batteries, preventing overheating, extending battery life by 20-30%, improving charging speed, and ensuring safety against thermal runaway.
What technologies are used in battery thermal management?
Key technologies include liquid cooling plates, phase change materials, thermoelectric cooling, heat pump integration, and direct refrigerant cooling. Liquid cooling has become the dominant approach for modern EV battery packs in China.
Which Chinese company leads in thermal management components?
Sanhua Intelligent Controls is the global leader in thermal management components, supplying electronic expansion valves, heat exchangers and water pumps to virtually every major EV manufacturer worldwide.
How is the Chinese thermal management market growing?
The market is growing 25-30% annually, driven by China's 10M+ annual EV production. Advanced cooling solutions like direct liquid cooling and integrated heat pump systems are rapidly replacing traditional air cooling approaches.
What is the future of battery thermal management?
Future trends include AI-based predictive thermal control, integrated vehicle-level thermal management combining cabin and battery cooling, solid-state battery cooling requirements, and thermal energy recovery systems to extend EV range.