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Electrolytes for
NMC||Graphite
cells

Cells with an NMC||graphite material composition combine a wide range of beneficial properties of lithium-ion batteries. They show a comparably high specific energy (between 220 – 240 Wh/kg) as well as good cycle life and rate capability.

Challenges

Nickel manganese cobalt oxide (NMC) is one of the most commonly used cathode materials in LIBs due to its advantageous properties in terms of high energy and power. NMC cathodes are produced and used with different transition metal ratios, such as NMC-111, NMC-622 or NMC-811. By varying the nickel content, the resulting capacity of the material can be tailored to fit the requirements of a specific application. By varying the nickel content, the resulting capacity of the material can be tailored to fit the requirements of a specific application. However, NMC materials can suffer severe degradation during cycling, which needs to be controlled by developing suitable electrolytes, that improve the mechanical stability of the cathode material and prevent the transition metal dissolution during the cycling process.

The Solution

Formation: 3 cycles  0.1C CCCV charge / 0.1C CC discharge
Cycling rate: 1C CCCV charge / 1C CC discharge
Temperature: 25 °C
Voltage range: 4.2 – 2.8 V

Applications NMC|| Graphite cells

NMC||Graphite cells are used throughout a wide range of applications such as electric vehicles, intralogistics, marine and stationary energy storage systems.

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