Lithium–ion cells

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Lithium–ion cells: Lithium–ion cells

Li-ion batteries are used in a variety of applications, including: 

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.

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

Model : HX 32700-6000mAh

  • Nominal Voltage : 3.2V
  • Nominal Capacity : 6000 mAh
  • Nominal Capacity : 6000 mAh
  • 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

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 LF batteries and are at a higher risk of overheating.
  • Cell voltage : The cell voltage of NMC batteries is 3.6–3.7 V.    

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

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