Lithium Phosphate (LiFePO4)
The latest lightweight high power rechargeable battery option for LEV's (light electric vehicles) is the Lithium Phosphate Battery. It is possible to produce a single cell of up to 200Ah, that is a major advantage for electric cars and buggies. The batteries main features are:
- Lightweight (1/3rd the weight of Lead Acid batteries)
- High current discharge performance o The best current discharge performance - best for hills, hill starts and endurance
- High performance - capacity of >170mah/g
- Extremely safe and stable o Non-explosive - Will not ignite under collision conditions o High thermal stability - up to 500C
- Extraordinary long life cycle life 5-7 years or >2000 full recycles
- Rapid recharging capability - from half an hour safely, with suitable charger
- High DOD (depth of Discharge) can be fully discharged safely with no detrimental performance affect
- No memory effect
- Environmentally friendly - Non-toxic, non-contaminating, easy disposal, 100% recyclable Wide working temperature -45° to +70°
- Flexible form factor
No other rechargeable battery is so flexible, safe and high performing as the Lithium Phosphate battery. These batteries will start becoming an option on the performance Lexola G3000LX electric scooter, the new Lexola G4500 U Buggy and the forthcoming compact electric car Lexola G Pod.
Urban Mover™ - Battery Comparison Chart
| Lead Acid | Silicon | Ni-Cad | NiMh | Li-ion | Li-Pol | Li-Pho | |
| Safety | Good | Excellent | Good | Good | Good | Excellent | Superb |
| Nominal voltage | 2 | 2 | 1.2 | 1.2 | 3.4 | 3.6 | 3.2 |
| Wh/Kg Energy density (gravimetric) | 35 | 50 | 41 | 80 | 120 | 160 -180 | 110 |
| Volumetric energy density | 80 | 130 | 120 | 200 | 280 | >320 | >240 |
| Cycle life | 200 | 400 | 250 | 400-500 | 400-500 | >1000 | >2000 |
| Memory effect | No | No | Yes | No | No | No | No |
| Operational temperature (C) | -15° to +50° | -50° to +70° | -20° to +50° | -20° to +60° | -20° to +60° | -20° to +60° | -25° to +60° |
| Flexible form factor | No | No | Yes | No | No | Yes | Yes |
| Self discharge (% per month) | <0 | <0 | <10 | <20 | <5 | <5 | <5 |
| Environmental impact | High | Low | High | Medium | Mid-Low | Low | Low |
| Initial purchase cost | Low | Medium | Medium | Medium | Mid-High | High | High |
| Lifetime cost (based on range and cycle life) | High | Medium | Medium | Medium | Low | Very Low | Very Low |