Lithium iron phosphate battery (LiFePO4 accumulator) is a version of lithium ion batteries in which the conventional lithium cobalt oxide cathode was replaced by a lithium iron phosphate cathode. This battery is characterized by high charge and discharge currents, a very good temperature stability and a long life. The nominal voltage is 3.2 V or 3.3 V / cell, the energy density is 100-120 Wh / kg, the power density is about 1.8 kW / kg.
Similarly, a lead / acid battery of 100Ah / 12V
Dimensions (LxWxH) 298 x 195 x 270 mm
Rated voltage 13,2 V
max voltage at charging 15.4V
Final charge voltage for cyclic operation 14,6V
Charge current 50A (1C)
Charging current for cyclic operation 16.5A (C / 3)
Discharge voltage 8V
Discharge voltage at cyclic operation 10V
Discharge current 150A (3C)
Discharge current for cyclic operation 16.5A (C / 3)
Discharge pulse current (10 sec.) 400A (8C)
Discharge pulse current (60 sec.) 250A (5C)
Discharge capacity at 20 ° C 50Ah / 660Wh
Discharge capacity at -20 ° C 32.5Ah / 429Wh
Fast discharge at 20 ° C 45Ah / 594Wh
Operating temperature (charging) 0 ° C to 45 ° C
Operating temperature (charging) -20 ° C to + 60 ° C
Storage temperature -20 ° C to + 60 ° C
The advantages over conventional lead batteries are many because:
has a safe technique and is therefore reliable.
has no autoignition in case of overheating.
does not present a risk of explosion in case of overload.
means no danger of explosion due to gas formation.
is maintenance-free throughout its life.
has a flat discharge curve and therefore the maximum power is available until complete discharge
has a high dispensability 1C-3C continuously and up to 10C with rapid discharge.
depth can be discharged.
Unlike lead batteries, they can also be stored in partially discharged condition for a long time without permanent damage.
has a very low self-discharge of <3% per month. has no / almost no power loss and can safely be used at high ambient temperatures of up to 60 ° C. contains no toxic heavy metals such as lead, cadmium or any aggressive acids or alkalis and is therefore sulfation-free. are robust, there are no sensitive / brittle lead plates that are susceptible to failure. Fast charging and can therefore be quickly recharged safely. is ideal for storage systems for renewable energy, e-mobility, portable storage solutions, UPSs, boats, camper vans, caravans, etc.