Modifying Surface Chemistry to Enhance the Electrochemical Stability of Nickel‐Rich Cathode Materials
Yingying Xie,
Jiantao Li,
Matthew Li
et al.
Abstract:Residual impurities such as lithium carbonate and hydroxide are a major concern for accelerating parasitic reactions at the cathode electrolyte interface of lithium‐ion batteries. Removal of these lithium‐bearing species becomes a necessity for high‐performance nickel‐rich cathode materials. Instead of directly removing these impurities through washing steps, a wet impregnation process is employed to convert these detrimental surface impurities into beneficial surface coating on nickel‐rich cathode materials. … Show more
Ni-rich LiNixMnyCozO2 (NMC) materials such as NMC811 (80% Ni) are promising Li-ion battery cathodes due to their high energy density and low cost. However, their reactive surfaces pose a practical...
Ni-rich LiNixMnyCozO2 (NMC) materials such as NMC811 (80% Ni) are promising Li-ion battery cathodes due to their high energy density and low cost. However, their reactive surfaces pose a practical...
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