LITHIUM–ION CELLS
A lithium-ion (Li-ion) cell is rechargeable battery that charged and discharged by lithium-ions moving between anode and cathode electrodes. Li-ion cells are light-weight , high energy density, long life cycle and low self discharge rate makes it preferred choice battery applications. Li-ion batteries are in demand for electronic vehicle, medical devices, aerospace and energy storage system.
Lithium-ion cells are in cylindrical and prismatic shapes. Lithium-ion cells chemistry comes in LFP (Lithium iron phosphate) and NMC (Nickle Manganese Cobalt ) Li-ion cell.
Li-ion batteries are used in a variety of applications, including:
- Electric vehicles
- Stationary energy storage systems
- Portable electronic devices
- Cell towers and base stations
- Aerospace applications
LFP Cell
Lithium iron phosphate (LFP) batteries have several properties, including:
- Energy density: LFP batteries have a high energy density of 220 Wh/L and 100–140 Wh/kg.
- Charge efficiency: LFP batteries have a charge efficiency greater than 90%.
- Cycle life: LFP batteries have a cycle life of approximately 2,000 at a deep discharge rate of 80%.
- Stability: LFP batteries are stable at high temperatures.
- Safety: LFP batteries pose few safety concerns such as overheating and explosion.
- Non-toxic: LFP batteries have a non-toxic cathode material.
- Puncture resistance: LFP batteries can withstand punctures without igniting.
- 100% charge: LFP batteries can be fully charged without causing accelerated battery degradation
Hunan Huaxing
- Model : HX 32700-6000mAh
- Nominal Voltage : 3.2V
- Nominal Capacity : 6000 mAh
- AC Impedance : ≤ 8mΩ
- End-of-charge Voltage : 3.65V
- Discharge Volatage : 2.0 V
- Max continuous discharging current : 18 A
- Battery Diameter : 32.2 mm
- Battery height : 70 mm
- Cell weight : 142 gm
Winway
- Model : 32650 mAh
- Nominal Voltage : 3.2 V
- End-of-charge Voltage : 3.65V
- Discharge Volatage : 2.0 V
- AC Impedance : ≤ 7mΩ
- Nominal Capacity : 6000 mAh
- Weight : 140 gm
- Battery Diameter : 3.2 mm
- Battery Height : 65 mm
NMC Cell
Lithium nickel manganese cobalt (NMC) lithium-ion batteries have many properties, including:
- Energy density : NMC batteries have a high energy density, meaning they can store a lot of energy in a small space.
- Cycle life : NMC batteries have a long cycle life, but can only undergo around 800 charging and discharging cycles before degrading.
- Self-discharge rate : NMC batteries have a low self-discharge rate.
- Thermal stability : NMC batteries are less thermally stable than LFP batteries and are at a higher risk of overheating.
- Cell voltage : The cell voltage of NMC batteries is 3.6–3.7 V.
DMEGC
Model : INR18650-26E
Nominal Capacity : 2600mAh
Nominal Voltage : 3.65V
Charging Voltage : 4.2 V
Discharge Cut-off Voltage : 2.5V
Max Discharge Current : 3C
Cell weight : < 47g
Cell Height : 64.95 mm
- Cell Diameter : 18.25 mm
