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NMC 532 Cathode Powder - MSE Supplies LLC

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MSE PRO Single Crystal NMC 532 Cathode Powder 500g, Lithium Nickel Manganese Cobalt Oxide, LiNi<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>O<sub>2</sub>

MSE PRO Single Crystal NMC 532 Cathode Powder 500g, Lithium Nickel Manganese Cobalt Oxide, LiNi0.5Mn0.3Co0.2O2

SKU: PO0192

  • £23500
  • Save £2900

Single Crystal NMC 532 Cathode Powder, 500g, Lithium Nickel Manganese Cobalt Oxide, LiNi0.5Mn0.3Co0.2O2 (Ni:Mn:Co = 5:3:2) 4.0~8.0 um D50

SKU#: PO0192

Package Size: 500g

Main Advantages: single crystal, high voltage (4.35V), high power density, high compaction density

Specifications:

  • Appearance: Black powder
  • Molecular Formula: LiNi0.5Mn0.3Co0.2O2 NMC (Ni:Mn:Co = 5:3:2)
  • Chemical Name or Material: Lithium Nickel Manganese Cobalt Oxide
  • Particle sizes:
    • D10:  ≥2.0 µm
    • D50:  4.0~8.0 µm
    • D90:  ≤15.0 µm (typical value 8 µm)
  • Tap density: ≥1.6 g/cm3
  • Compaction density: 3.6 ~ 3.7 g/cm3
  • pH:  ≤11.6
  • BET Specific Surface Area: 0.3 - 0.9 m2/g
  • First Discharge Capacity
    • 0.2C, button half open cell, vs. Li:  ≥180 mAh/g (4.45 - 3.0V), typical value 185 mAh/g (4.45 - 3.0V)
    • 0.5C, button half open cell, vs. Li:  ≥170 mAh/g (4.45 - 3.0V), typical value 175 mAh/g (4.45 - 3.0V)
 Parameter Specifications
Ni+Mn+Co (wt%) 57.0~62.0
Li (wt%) 7.0~7.6
Ni (mol%) 50.0±1.0
Mn (mol%) 30.0±1.0
Co (mol%) 20.0±1.0
Ca (wt%) ≤0.0100
Cu (wt%) ≤0.0020
Fe (wt%) ≤0.0050
Na (wt%) ≤0.0300

 

Questions and Answers

Q  What can affect the stability of NMC when cycled to high voltages?

A   The stability of NMC is affected by 

  1. structural transformation from layered to spinel and/or rock-salt phases
  2. mechanical damage such as crack formation in active particles
  3. parasitic reactions between cathode and the electrolyte 
  4. migration, segregation and dissolution of transition metals 

Q  Why do single crystals matter?

A  The benefits of single crystal cathode materials:

  1. Coatings on single crystal particles remain intact with repeated cycling 
  2. less undesirable side reactions with the electrolyte
  3. long lasting and durable lithium ion battery cells
  4. high gravimetric energy density and high volumetric energy

Q  Why single crystal NMC is trending in EV industry?

A  As battery is the most expensive component of EV, not only does battery health affect the vehicle’s residual value, but it also has a direct impact on the maximum usable range over time. The cycling life of battery using traditional NMC is usually shorten in an extreme weather condition. Single crystal NMC with better structure stability is a promising cathode material for long life time EV applications. The Tesla researchers patented a single crystal NMC which can be cycled for more than 4000 cycles at 40 °C.

References:

1. A Wide Range of Testing Results on an Excellent Lithium-Ion Cell Chemistry to be used as Benchmarks for New Battery Technologies, J. Electrochem. Soc, 166(13) A3031-A3044 (2019)

2. Tesla battery researcher unveils new cell that could last 1 million miles in ‘robot taxis’, https://electrek.co/2019/09/07/tesla-battery-cell-last-1-million-miles-robot-taxis/

3. Single-crystal based studies for correlating the properties and high-voltage performance of Li[NixMnyCo1−x−y]O2 cathodes, J. Mater. Chem. A, 2019,7, 5463-5474