Lithium Titanate (LTO) vs. Nickel-Cadmium (NiCd)
Comparing 2 standards across 9 specifications. 9 key differences identified.
Lithium Titanate (Li4Ti5O12 / LTO) chemistry replaces carbon graphite anodes with nanocrystalline lithium titanate. Operating at 2.3V–2.4V nominal, LTO achieves industry-record cycle life exceeding 15,000–30,000+ cycles, extreme rapid charging rates up to 10C–30C (0 to 80% in under 5 minutes), and sub-zero operation down to -40°C with near-zero SEI degradation.
Nickel-Cadmium (NiCd) is a mature, exceptionally rugged alkaline secondary chemistry operating at 1.2V nominal. Renowned for sustaining massive pulse discharge currents, operating reliably in deep sub-zero temperatures (-40°C), and enduring harsh electrical abuse, NiCd remains in service for aircraft backup power, emergency lighting, and legacy industrial systems.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nominal Cell Voltage
|
2.30 – 2.40 V | 1.20 V |
|
Gravimetric Energy Density
|
70 – 100 Wh/kg | 45 – 65 Wh/kg |
|
Volumetric Energy Density
|
150 – 220 Wh/L | 120 – 160 Wh/L |
|
Cycle Life (to 80% Capacity)
|
15,000 – 30,000+ Cycles | 1,000 – 2,000 Cycles |
|
Thermal Runaway Threshold
|
> 280 (Extremely Safe) °C | > 260 °C |
|
Operating Temperature Range
|
-40 to +65 °C | -40 to +60 °C |
|
Self-Discharge Rate
|
< 1% / Month | 15 – 20% / Month |
|
Primary Anode Material
|
Lithium Titanate Oxide (Li4Ti5O12) | Metallic Cadmium (Cd) |
|
Primary Cathode Material
|
NMC or LMO (Lithium Manganese Oxide) | Nickel Oxyhydroxide (NiOOH) |