Electrochemical characterizations of Fe-substituted LiNiO2 synthesized in air by the combustion method

Recent Progress and Perspective of Advanced High‐Energy Co‐Less Ni‐Rich Cathodes for Li‐Ion Batteries: Yesterday, Today, and Tomorrow

“…d) Variations in the discharge capacity at a 0.1C‐rate with the number of cycles in the voltage range of 2.7–4.2 V for LiNi 1− y Fe y O 2 (0.000 ≤ y ≤ 0.100) calcined in air at 700 °C for 48 h. Reproduced with permission. [ 52 ] Copyright 2010, Elsevier. e) Variations in the cell voltage versus lithium amount at the C/20 rate for the first ten galvanostatic charge/discharge cycles of Li//Li x Ni 0.89 Al 0.16 O 2 cells.…”

“…The Ni‐rich LiNiO 2 with ≤1% Fe‐substitution prepared by a combustion method showed a variation in discharge capacity with similar cycling performance in the voltage rage of 2.7–4.2 V at 0.1C (Figure 3d). [ 52 ] Furthermore, Mohan and Kalaignan reported that the LiFe 0.15 Ni 0.85 O 2 electrode delivered a high reversible capacity of 190 mA h g −1 in the voltage range of 3–4.5 V at a rate of 0.5C with 94% capacity retention over 60 cycles. [ 36 ] LiNiO 2 with >20% Fe‐substitution exhibited reduced discharge capacity with poor cyclability because of the formation of the inert rock salt structure, which prevented Li + migration in the structure upon charge–discharge.…”

High-Throughput Evaluation of Discharge Profiles of Nickel Substitution in LiNiO2 by Ab Initio Calculations

“…Efforts to search for substitution elements have been made for a long time, and in addition to Co and Al substitution, examples of Ni substitution with Ga, Ti, and Mg and Fe substitution , have been reported. Recently, a study on the substitution of Ni with Cu has been reported .…”

Review of Modified Nickel-Cobalt Lithium Aluminate Cathode Materials for Lithium-Ion Batteries

“…However, it is still impossible to synthesize a stoichiometric ratio of LiNiO 2 by a simple process because Ni 2+ is difficult to completely oxidize to Ni 3+ , and its electronic structure, magnetic structure, and local structure are still highly controversial, severely limiting this positive electrode from practical applications. It is feasible that a layered nickel-rich oxide replacing Ni with other heteroatoms, such as Co [10,11], Fe [12,13], Mn [14,15], Ti [16], Zr [17], Mg [18], and Al [19], can deliver a sizeable reversible capacity, and it is one of the most attractive strategies in the field of cathode materials. These substitutions mainly affect the layered crystal structure, the electrochemical stability, and the capacity with the intercalation and deintercalation of lithium ions, especially for the thermal stability in the case of extreme charge-discharge processes.…”