2S1P Lithium Iron Phosphate Battery Pack LiFePO4 Battery 6.4V
1000mAh
Lithium Iron Phosphate (LFP or LiFePO4) :
Lithium Iron Phosphate - LFP - LiFePO4-cell
Lithium Ferro Phosphate technology (also known as LFP or LiFePO4),
which appeared in 1996, is replacing other battery technologies
because of its technical advantages and very high level of safety.
Due to its high power density, this technology is used in
medium-power traction applications (robotics, AGV, E-mobility, last
mile delivery, etc.) or heavy-duty traction applications (marine
traction, industrial vehicles, etc.)
The long service life of the LFP and the possibility of deep
cycling make it possible to use LiFePO4 in energy storage
applications (stand-alone applications, Off-Grid systems,
self-consumption with battery) or stationary storage in general.
Major advantages of Lithium Iron Phosphate:
Very safe and secure technology (No Thermal Runaway)
Very low toxicity for environment (use of iron, graphite and
phosphate)
Calendar life > 10 ans
Cycle life : from 2000 to several thousand (see chart below)
Operational temperature range :up to 70°C
Very low internal resistance. Stability or even decline over the
cycles.
Constant power throughout the discharge range
Ease of recycling
Life-cycle ofLithium Iron Phosphate technology (LiFePO4)
Lithium Iron Phosphate technology is that which allows the greatest
number of charge / discharge cycles. That is why this technology is
mainly adopted in stationary energy storage systems
(self-consumption, Off-Grid, UPS, etc.) for applications requiring
long life.
The actual number of cycles that can be performed depends on
several factors:
Level of power in C-Rate
Depth of Discharge (DOD)
Operational environment : temperature, humidity, etc.
In standard environment, and for 1C cycles, we can get from the
chart the below life cycle estimation for LFP :
2000 cycles at 100% DoD
3000 cycles at 80% DoD
8000 cycles at 55% DoD
It should be noted that following the number of completed cycle,
the batteries still have a nominal capacity > 80% of the
original capacity.
Electrical Characteristics
Nominal Voltage - 6.4V Nominal Capacity – 1000mAh Energy - 6.4Wh Internal Resistance - ≤90mΩ Cycle Life -> 2000 cycles @1C 100%DOD( see below picture ) Months Self Discharge - <9% Efficiency of charge - 100% @0.2C Efficiency of discharge - 96~99% @1C |
Standard Charge Charging voltage - 7.3V +/- 0.1V Charge mode - 0.2C to 7.3V , then 7.3V charge current to 0.02C
(CC/CV) Standard Charger current - 200mAh Fast charge current - 1Amp Charge cut off voltage - 7.3V ( 3.65V * 2 series ) |
Standard Discharge Continuous Current - 3A Max. Pulse Current - 5A (<5s) Discharge cut off voltage – 5V ( 2.5V *- 2 series ) Rated power : 19.2W |
Environmental Charge Temperature - 0 ℃ to 45 ℃ (32F to 113F) @60±25% Relative
Humidity Discharge Temperature - -20 ℃ to 60 ℃ (-4F to 140F) @60±25%
Relative Humidity Storage temperature - 0 ℃ to 40 ℃ (32F to 104F) @60±25% Relative
Humidity |
Mechanical Cell & Method - 3.2V 1000mAh 18650 lifepo4 cell -2S1P - 2PCS cells Body casing – PVC + PET case |
Application Led lights , easy to make in parallel or in series . |
