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Battery overheating in LiFePO4 ESS systems? Learn the root causes including high C-rate, poor ventilation, and internal resistance growth.
Keywords: LiFePO4 overheating, lithium battery temperature rise, ESS battery thermal management
1. High Discharge Current
Heat = I²R loss
Higher current exponentially increases heat.
2. Poor Ventilation Design
Wall-mounted batteries often lack airflow clearance.
3. Aging Internal Resistance Increase
As batteries age:
- Internal resistance rises
- Heat generation increases
4. Loose Connections
Terminal resistance causes localized heating.
Thermal Management Recommendations
- Maintain 15–30°C operating range
- Keep clearance ≥ 10cm
- Torque terminals properly