Comparison lead-acid with lithium-ion
Despite lower capacities compared to lead-acid, a Li-Ion battery can have the same energy content due to, among other things:
- Higher voltage
- Higher depth of discharge
- Higher efficiency
- Lower internal resistance
SIMPLIFIED:
Capacity lead = 2/3 capacity lithium
Example:
375 Ah lead-acid / 1.5 = 250 Ah lithium
|
|
Lead acid
Battery module (PzS) |
Lithium-ion
Battery module (NMC) |
Units
|
|---|---|---|---|
|
Nominal capacity C5
|
375
|
260
|
Ah
|
|
Average cell voltage
|
2,00
|
3,70
|
Volt
|
|
Number of cells
|
12
|
7
|
Piece
|
|
Permissible depth of discharge
|
80
|
95
|
%
|
|
Energy content
|
6,84
|
6,73
|
kWh
|
