A three-in-one engineering strategy to achieve LiNi0.8Co0.1Mn0.1O2 cathodes with enhanced high-voltage cycle stability and high-rate capacities towards lithium storage

High-voltage deprotonation of layered-type materials as a newly identified cause of electrode degradation

“…7 The target capacity of these nickel-based layered cathode materials is larger than 200 mA h g −1 and the charging voltages should be above 4.2 V (vs. Li/Li + , hereaer) to meet higher energy densities required for EV applications. [8][9][10][11][12][13] Increasing the cell operating voltage, however, is inevitably accompanied by a plethora of electrode and electrolyte degradation mechanisms-irreversible structural changes, micro-fracture formation and continuous parasitic reactions within the electrode-electrolyte interface-that lead to rapid performance loss. [14][15][16][17][18][19][20] Therefore, a fundamental and mechanistic understanding of underlying mechanisms in layered cathode materials during battery cycling at high voltages is critical for the development of next-generation LIBs.…”

Scalable Advanced Li(Ni0.8Co0.1Mn0.1)O2 Cathode Materials from a Slug Flow Continuous Process

“…The expanding demands for lithium-ion batteries (LIBs) in portable electronic devices (e.g., smartphones, tablet PCs) and environmental-friendly vehicles (e.g., electric and/or hybrid vehicles) require researchers to further improve safety, extend battery life, increase charge capacity, and reduce cost. − One of the most advanced material options is the layered nickel-rich LiNi x Co y Mn z O 2 cathode. − The cathode material is one of the key cost drivers in lithium-ion batteries. The typical cost of an nickel-cobalt-manganese oxide (NCM) material is $25/kg, or $2,151/pack, or $160/KWh Useable .…”

Highly Reversible Li‐Ion Full Batteries: Coupling Li‐Rich Li1.20Ni0.28Mn0.52O2 Microcube Cathodes with Carbon‐Decorated MnO Microcube Anodes

“…Furthermore, the electrochemical properties of LIBs are strongly related to the architecture of electrode materials in addition to their intrinsic properties [30–33] . One way to realize LIBs with high energy‐ and power‐density is to make higher Li + storage materials into a nanostructure, which could provide an efficient Li + migration path, maximized active sites, and architectural stability [34] .…”

“…[27][28][29] Furthermore, the electrochemical properties of LIBs are strongly related to the architecture of electrode materials in addition to their intrinsic properties. [30][31][32][33] One way to realize LIBs with high energy-and power-density is to make higher Li + storage materials into a nanostructure, which could provide an efficient Li + migration path, maximized active sites, and architectural stability. [34] In particular, the porous micro/nanostructured materials have been proven as an ideal candidate to overcome the major limitations in developing high-performance LIBs, which could give rise to increase the Li + storage capacity, cycling stability, and kinetic property, because they can improve electrolyte permeability with fast charge transfer and structural strain accommodations.…”