Heat accelerates degradation and poses safety risks, even for stable LiFePO4 chemistry. To monitor thermal behavior:
- Attach a temperature probe to the cell can during capacity tests. Moderate temperature rise indicates safe operation; rapid warming suggests issues like poor contact or high internal resistance.
- Use thermal sensors in packs, adhered firmly to representative cells, and log data to detect anomalies.
- Avoid high currents or deep discharges in hot environments, as these shrink LiFePO4’s cycle-life advantage.
Proactive measures include ensuring proper busbar contact, torque specifications, and ventilation in enclosures to dissipate heat.
This answer is sourced from Posts《lifepo4 prismatic battery cell 3.2v 100ah grade a》