Why lithium ion battery more and more popular? In China, more and more EV cars on the street, also more and more Electrical motor.
Below is a compare for Lithium & Lead acid battery:
| Battery type | LifePO4 battery | Lead acid battery |
| Nominal voltage | 3.2V | 2V/6V/12V |
| Energy density | 180Wh/kg | 30WH/KG |
| Weight | Light | Heavy |
| CBM | Small | Big |
| Safty rate | High | Low |
| Cycles | 3500 | 500 |
| Memory | NO | YES |
| Environmental protection | Environmental protection and pollution-free | Pollution |
Revenue contributions by different battery chemistries
37% Lithium-ion
20% Lead acid, starter battery
15% Alkaline, primary
8% Lead acid, stationary
6% Zinc-carbon, primary
5% Lead acid, deep-cycle
3% Nickel-metal-hydride
3% Lithium, primary
2% Nickel-cadmium
1% Other
Source: Frost & Sullivan (2009)
This data is long long ago, even is long long ago data, still lithium ion battery take higher rate.
Parameters for 12V 100ah lithium ion battery pack
| Electrical Characteristics | Nominal voltage | 12.8V |
|---|---|---|
| Norminal capacity | 100ah @0.2C | |
| Energy | 1280Wh | |
| Inner resistance | 45<=mΩ | |
| Cycle life | 2000 cycles @0.2C charge/discharge, until 70% capacity | |
| Self discharge | <=3.5% per month at 25 degree | |
| Standard Charging | Max charging voltage | 14.0V-14.6V |
| Charging mode | At 0℃-45℃ temperature, charged to 14.6V at a constant current 0f 0.2C5A, and then changed continuously with constant voltgae of 14.6V until the current was not more than 0.2C5A | |
| Charging current | 20A | |
| Max charging current | 50A | |
| Standard discharging | Discharging current | 20A |
| Max continuous current | 100A | |
| Max Pulse current | 200A (<3S) | |
| Discharging cut-off voltage | 10.0 | |
| Structure | Cell & format | IFR32700, N60, 4S17P |
| Casing | Plastic | |
| Dimension(L*W*H*TH) | 328*172*215*220mm | |
| Weight | About 13.1KG | |
| Terminal | M8 | |
| Application | Solar, wind/home energy storage, UPS, boat, marine... |
Curve:
