Keywords: NiCd battery performance, internal resistance effects, high discharge battery, industrial energy storage
Introduction
Internal resistance directly determines how effectively a Ni-Cd battery performs under heavy load. In industrial applications, poor internal resistance control can lead to system failures.
Performance Impacts
1. Voltage Drop Under High Current
As resistance rises, voltage drops faster during discharge, reducing available capacity.
2. Heating
High resistance generates heat, which accelerates aging and reduces efficiency.
3. Lower Cycle Life
Energy loss due to internal resistance leads to stress on the electrodes, reducing long-term durability.
4. Reduced Performance in Cold Environments
Ni-Cd batteries perform better than lead-acid in low temperatures, but resistance still increases significantly below 0°C.
Conclusion
Maintaining low internal resistance is essential to achieving the famous long life and reliability of Ni-Cd batteries in industrial usage.
