$LiNi_{1-y}M_{y}O_{2}(M=Zn^{2+},;Al^{3+},;and;Ti^{4+},;0.000{le}y{le}0.100)$ were synthesized by the combustion method by calcining in $O_{2}$ stream at $750^{circ}C$ for 36 h. XRD analyses, observation by FE-SEM and measurement of the variation of discharge capacity with the number of cycles were carried out. The composition $LiNi_{0.99}M_{0.01}O_{2}(M=Zn^{2+},;Al^{3+},;and;Ti^{4+})$ of all the compositions showed relatively good electrochemical properties. $LiNi_{0.99}M_{0.01}O_{2}$ exhibited poor crystallinity and $LiNi_{0.99}M_{0.01}O_{2}$ showed the cation mixing of large fraction. $LiNi_{0.99}M_{0.01}O_{2}$ with improved cycling performance showed good crystallinity and the cation mixing of small fraction.????????K?乍