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Welcome
Thank you for visiting the Lithium Battery Pack Company! We hope we can help you to find the best battery pack for your application. Please see the following information to choose a battery chemistry. We're constantly updating our site so please check back often to see new products and information.
Comparison of lithium battery types:
| Specification |
LiCoO2 |
LiNCM
(LiNiCoMnO2) |
LiMn2O4 |
LiFePO4
|
| Density (gram/cm3) |
2.8-3.0 |
2.0-2.3 |
2.2-2.4 |
1.0-1.4 |
| Capacity density (mAh/kg) |
135-140 |
155-165 |
100-115 |
130-160 |
| Nominal Voltage |
3.6 |
3.5 |
3.7 |
3.2 |
| Charge cycle life |
300 |
800 |
700-1000 |
2000 |
| Environmental considerations |
Contains
toxic cobalt |
Contains toxic
cobalt and nickel |
Slight
toxicity |
Safe |
| Safety |
Bad |
Low risk |
Low risk |
Very safe |
Comparison of LiFePO4 batteries to other types:
| Specification |
Nickel Cadmium |
Nickel Zinc |
Sealed Lead Acid
| Lithium Iron Phosphate (LiFePO4) |
| Nominal voltage |
1.2 |
1.6 |
2.1 |
3.2 |
| Energy density (Wh/kg) |
30-50 |
50-80 |
40 |
120 |
| Volumetric Energy Density (Wh/L) |
150 |
200 |
70 |
210 |
| Cycle life |
500 |
600 |
500 |
2000 |
| Environmental considerations |
Contains toxic cadmium |
Environmentally safe |
Contains toxic lead |
Safe |
| Safety |
Low risk |
Low risk |
Low risk |
Very safe |
Performance advantages of LiFePO4 batteries
- High power density, 110-135 Wh/kg
- Long life, retains 80% capacity after 2000 charge cycles
- Safety: Some lithium batteries tend to explode or catch fire if damaged but LiFePO4 batteries do not even under harsh conditions
- Low temperature sensitivity: 105% of capacity is available at 130°F (55°C), 80% of capacity is available at -5°F (-15°C)
- Low self discharge current: less than 5% per month
- Very high charge/discharge efficiency, near 100% even if discharged at 5C
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