LiFePO4 Chemistry
LiFePO4 is the formula name of Lithium Iron Phosphate, also known as LFP. It replaced other battery technologies because of its technological advancement and safety features. This latest technology is being used in a number of application from small devices consumer devices to heavy duty industrial machines. These cells have high density and light weight which enable this technology to use in multiple devices.
Cylindrical Cells
Cylindrical cells one of the most widely used lithium ion battery shapes due to ease to use and good mechanical stability. The tubular cylindrical shape can withstand high internal pressures without collapsing. Melasta produces multiple sizes and capacities according to the customer requirement. These cells are mostly used in Electrical vehicles such as golf cart and in power tools.
Melasta is one of the main producer and supplier for LiFePO4 batteries in China. Our batteries have the features due to our superior technologies and state of the art manufacturing facilities and investment on research and development.
Melasta LiFePO4 battery has very long lifespan due to its superior performance, and proven quality. it provides more than 2500 life cycles with 80% Depth of Discharge (DOD) at 25oC temperature.
These batteries are very light weight as compared to the Lead-acid batteries and all other old technologies. Due to this property these batteries are popular batteries in e-mobility industry to outperform the old technologies such as lead-acid batteries.
Melasta uses high quality material for battery production. These LiFePO4 batteries do not contain any hazardous material so these are fully environment friendly and recyclable batteries.
Operational temperature range is very wide it operates on extreme temperatures. The normal operational temperature range is from -10oC to +60oC. These batteries are also used as starter batteries in extremely cold temperatures.
These batteries have very low internal resistance which is very favorable for its safety. It delivers high current on demand and keep the battery temperature at normal level.
Normally old technology batteries such as lead-acid batteries required regular maintenance which increases the over cost of the battery system. Melasta Lithium Iron Phosphate Battery out performs the lead acid battery and provides the maintenance free solution.
High Drain Type Cylindrical LiFePO4 Battery
Item No. |
Battery Model |
Nominal Voltage |
Nominal Capacity |
Dimension |
Charge Current |
Quick Charge |
Max Cont. discharge rate |
Max pus Discharge rate |
Weight Approx (g) |
|
Diameter |
Height |
|||||||||
(V) |
(mAh) |
(mm) |
(mm) |
|||||||
1 |
IFR14500-5C |
3.2 |
450 |
14 |
50.5 |
0.5C |
1.5C |
5C |
8C |
21 |
2 |
IFR18500-5C |
3.2 |
1000 |
18.5 |
50.5 |
0.5C |
1.5C |
5C |
8C |
32 |
3 |
IFR18650-15C |
3.2 |
1100 |
18.5 |
65.5 |
0.5C |
1.5C |
15C |
20C |
42 |
4 |
IFR18650-5C |
3.2 |
1400 |
18.5 |
65.5 |
0.5C |
1.5C |
5C |
8C |
40 |
5 |
IFR22650-15C |
3.2 |
1600 |
22.5 |
65.5 |
0.5C |
1.5C |
15C |
20C |
60 |
6 |
IFR22650-5C |
3.2 |
2100 |
22.5 |
65.5 |
0.5C |
1.5C |
5C |
8C |
60 |
7 |
IFR26650-15C |
3.2 |
2200 |
26.5 |
65.5 |
0.5C |
1.5C |
15C |
20C |
76 |
8 |
IFR26650-5C |
3.2 |
3000 |
26.5 |
65.5 |
0.5C |
1.5C |
5C |
8C |
76 |
9 |
IFR32600-15C |
3.2 |
3000 |
32.5 |
65.6 |
0.5C |
1.5C |
15C |
20C |
125 |
10 |
IFR32600-5C |
3.2 |
3500 |
32.5 |
65.6 |
0.5C |
1.5C |
5C |
8C |
125 |
11 |
IFR32900-15C |
3.2 |
4500 |
32.5 |
90.5 |
0.5C |
1.5C |
15C |
20 |
188 |
12 |
IFR32900-5C |
3.2 |
5000 |
32.5 |
90.5 |
0.5C |
1.5C |
5C |
8C |
188 |
13 |
IFR42120-5C |
3.2 |
12000 |
42.5 |
120.5 |
0.5C |
1.5C |
5C |
8C |
355 |
Different Rate Discharge Curve
Discharge Curve at Different Temperature
Cycle Life Curve
0.5C Charge Curve
These are the technical specification of the Melasta cylindrical cell model IFR2665E with 3800mAh capacity.
1. Electrical Characteristics
Nominal Voltage |
3.2V
|
Nominal Capacity |
3800mAh
|
Energy |
12.16Wh |
Internal Resistance |
≤60mΩ
|
Cycle Life |
>2000 cycles @0.2C 80%DOD |
Months Self Discharge |
<3%
|
Efficiency of Charge |
100% @0.5C |
Efficiency of Discharge
|
96~99% @1C
|
Charge Voltage |
3.65V
|
Charge Mode |
0.2C to 3.65V, then 3.65V,charge current to 0.02C5A (CC/CV) |
Charger Current |
760mA |
Max. Charge Current |
1.0C5A
|
Charge Cut-off Voltage
|
4.2±0.03V |
3. Standard Discharge
Continuous Current |
760mA
|
Max. Discharge Current |
3.0C5A
|
Discharge Cut-off Voltage |
2.5V |
4. 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 |
Water Dust Resistance
|
/
|
Dimensions (mm.) |
27.0*66.5mm MAX |
Weight (g.)
|
Approx:92g |