RFLead Acid vs Nickel Iron Cells: A Detailed Comparison
battery technology
lead acid cell
nickel iron cell
energy storage
cell comparison
Advertisement
This article compares Lead Acid Cells and Nickel Iron Cells, highlighting the differences between them.
Specifications Comparison
The following table summarizes the key specifications of each cell type:
| Specifications | Lead Acid Cell | Nickel Iron Cell |
|---|---|---|
| Active Material | ||
| 1. Positive Plate | Lead Peroxide (PbO₂) | Ni(OH)₄ |
| 2. Negative Plate | Spongy Lead (Pb) | Fe |
| 3. Electrolyte | Dilute H₂SO₄ | KOH |
| Average e.m.f | 2.0 volt/cell | 1.2 volt/cell |
| Charging Voltage | About 2.5 volts/cell | About 1.7 volts/cell |
| Efficiency | ||
| 1. Ampere-Hour | 85-90% | 75-80% |
| 2. Watt-Hour | 70-80% | 60-65% |
| Internal Resistance | Comparatively low | 5 Times that of lead acid cell |
| Cost | Low Initial Cost | High Initial Cost |
| Life and Discharges | About 1200 Charges / About 5 years | Longer |
| Mechanical Strength | Less | More |
| Rate of Charge/Discharge | Low | High |
| Discharge Period | Comparatively smaller | Larger |
