22650 Li-FePO4 battery 2000mAh 3.2V

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Lithium Iron Phosphate Battery (LiFePO4, LFP) is a type of electric battery, which is a type of lithium ion battery that uses LiFePO4 as the cathode.
This type of battery is actively used as a buffer energy storage in autonomous power supply systems using wind generators and solar panels, as well as in electric bicycles, electric scooters and electric vehicles.

Main characteristics:

• Nominal capacity: 2000mAh
• Nominal voltage: 3.3V
• Maximum voltage (fully charged): 3.65V
• Operating voltage: operating: 3.0 -3.3 V
• Minimum operating voltage (discharge): 2.8 V
• Self-discharge at room temperature: 3-5% per month
• Number of charge/discharge cycles up to loss of 20% capacity: 3000
• Shelf life: up to 10 years
• Operating temperature range: -30°C to+55°C
• Dimensions: 22x65 mm

Features of lithium iron phosphate batteries:

• LiFePO4 provides longer life than other lithium ion approaches;
• Unlike other lithium ionic, LiFePO4 batteries, like nickel They have a very stable discharge voltage. The output voltage remains close to 3.2 V during discharge until the battery is completely depleted. And this can greatly simplify or even eliminate the need for voltage regulation in circuits.
• Due to the constant output voltage of 3.2V, four batteries can be connected in series to obtain a nominal output voltage of 12.8V, which is close to the rated voltage of the six-cell lead acid battery. This, along with the good safety characteristics of LFP batteries, makes them a good potential replacement for lead acid batteries in many industries such as automotive and solar energy.
• Phosphates avoid cobalt costs and environmental concerns. in particular, if cobalt is released into the environment due to improper disposal.
• LiFePO4 has a higher peak current (and, given voltage stability, peak power) than LiCoO2.
• Specific gravity The energy (energy/volume) of the new LFP battery is about 14% lower than that of the new lithium-ion batteries.
• LiFePO4 batteries have a lower discharge rate than lead acid or lithium ion batteries. Since the discharge rate is defined as a percentage of the battery capacity, a higher discharge rate can be achieved with larger batteries (more ampere-hours). However, LiFePO4 cells with a high discharge current (which have a higher discharge rate than lead-acid batteries or LiCoO2 of the same capacity) can be used.
• Due to the slower decrease in energy density, after some operating time LiFePO4 cells already have a higher energy density than LiCoO2 and lithium-ion cells.
• LiFePO4 cells lose capacity more slowly than lithium-ion cells (LiCoO2 [lithium cobalt oxide], LiMn2O4 [lithium manganese spinel])
• One of the important advantages over other types of lithium-ion batteries is thermal and chemical stability, which significantly increases the safety of the battery.
• Frost resistance. For example, for the battery ANR26650M1-B [2] manufactured by A123 Systems, the temperature range is -30°C ... 55°C for operation and -40°C ... 60°C for storage.