Lithium Polymer (LiPo / LCO) vs. Lithium Titanate (LTO)
Comparing 2 standards across 9 specifications. 9 key differences identified.
Lithium Polymer (LiPo), commonly based on Lithium Cobalt Oxide (LiCoO2 / LCO), packages electrode stacks inside flexible multi-layer aluminum-laminate pouch cells rather than rigid metal cans. Operating at 3.7V–3.85V nominal (with High-Voltage LiHv variants reaching 4.35V–4.45V cutoff), LiPo offers unmatched peak discharge rates (up to 50C–100C continuous) for drones, RC modeling, and ultra-thin mobile hardware.
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.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nominal Cell Voltage
|
3.70 – 3.85 V | 2.30 – 2.40 V |
|
Gravimetric Energy Density
|
200 – 250 Wh/kg | 70 – 100 Wh/kg |
|
Volumetric Energy Density
|
500 – 650 Wh/L | 150 – 220 Wh/L |
|
Cycle Life (to 80% Capacity)
|
300 – 600 Cycles | 15,000 – 30,000+ Cycles |
|
Thermal Runaway Threshold
|
~150 °C | > 280 (Extremely Safe) °C |
|
Operating Temperature Range
|
-10 to +60 °C | -40 to +65 °C |
|
Self-Discharge Rate
|
3 – 5% / Month | < 1% / Month |
|
Primary Anode Material
|
Graphite | Lithium Titanate Oxide (Li4Ti5O12) |
|
Primary Cathode Material
|
Lithium Cobalt Oxide (LiCoO2 / LCO) | NMC or LMO (Lithium Manganese Oxide) |