We have synthesized LiNi
0.5−xMn
1.5−xM2xO
4 (
M=Al, Cr) materials by polyvinyl alcohol (PVA) method, and investigated the effect of the synthetic condition on the electrochemical performance including charge-discharge cycling tests. The characterization of the materials obtained was performed by X-ray diffraction, BET measurement, chemical analysis, and galvanostatic electrochemical measurements. It was found that all synthesized LiNi
0.5−xMn
1.5−xM2xO
4 (
M=Al, Cr) materials consist of LiNi
0.5Mn
1.5O
4 phase including a small amount of impurity NiO phase. Al and Cr substituted LiNi
0.45Mn
1.45M0.10O
4 (
M=Al, Cr) samples showed better
C-rate performance,
e.g., with a main discharge plateau of ∼4.7 V, and the discharge capacity of ∼100 mAh (g-oxide)
−1 at a 10
C rate and 25°C, compared to LiNi
0.5Mn
1.5O
4.
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