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DOE OSTI · 2000470

Interphasial engineering for Ni-rich NMC cathode materials

Shadike, Zulipiya·Chen, Yiming·Hu, Enyuan·Zhang, Junliang·Yang, Xiao-Qing
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Abstract

Ni-rich LiNi 1-x-y Mn x CoyO 2 , (NMC: 1-x-y ≥ 0.6) are promising cathode materials for lithium-ion batteries (LIBs) due to high reversible capacity and low cost. However, the fast capacity decay and voltage fading caused by interphasial instability requires improvement. The unstable cathodeelectrolyte interphase (CEI) and transition metal (TM) dissolution at higher voltages can lead to the drastic deterioration of electrochemical performance. In this review, recent approaches to novel electrolyte and additive design, cathode engineering including artificial CEI, and doping/coating on the surface of particles or the whole electrode are comprehensively summarized. In conclusion, the importance of multi-model and multi-scale characterization methods in understanding the effects of interphasial chemistry on battery performance is highlighted.

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25 ENERGY STORAGEAdvanced Characterization TechniquesElectrolyte EngineeringInterphasial chemistryNi-rich NMC

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Shadike, Zulipiya, Chen, Yiming, Hu, Enyuan, Zhang, Junliang, Yang, Xiao-Qing. 2023-08-28. Interphasial engineering for Ni-rich NMC cathode materials. https://doi.org/10.1016/j.trechm.2023.08.002

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