Elucidating and Mitigating High-Voltage Interfacial Chemomechanical Degradation of Nickel-Rich Lithium-Ion

Layered-type, nickel-rich lithium nickel manganese cobalt oxides (NMCs) are well-established cathode materials for high-performance lithium-ion batteries. These materials exhibit stable cycling within mild voltage windows (up to 4.3 V vs. Li/Li+) but can be charged to higher potentials (4.8 V vs. Li/Li+) to access additional capacity. However, high-voltage operation is generally avoided due to severe…
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