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An electrolyte additive allows stable high-voltage cycling of a nickel-rich layered cathode


Using an electrolyte additive enables a nickel-rich layered cathode to be cycled at high voltages and still retain 97% of its initial capacity after 200 cycles. The decomposition of the electrolyte additive leads to the formation of a robust interphase that protects the surface of the cathode, preserving the capacity and preventing cracks.

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Fig. 1: Using a LiPO2F2 additive to protect a NMC cathode at high voltages.


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This is a summary of: Tan, S. et al. Additive engineering for robust interphases to stabilize high-Ni layered structures at ultra-high voltage of 4.8 V. Nat. Energy (2022).

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An electrolyte additive allows stable high-voltage cycling of a nickel-rich layered cathode. Nat Energy 7, 482–483 (2022).

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