Characterization of LiNi _0.8Co _0.1Mn _0.1O ₂ synthesized via co-precipitation with different precipitants

In this article, cathode materials were synthesized via co-precipitation with different precipitants (Na ₂CO ₃, NaOH) followed by sintering process. XRD, SEM and electrochemical tests were used to characterize the microstructure, morphology and electrochemical properties of the obtained cathode materials. The results indicated that the cathode material synthesized by NaOH exhibits better layer structure, morphology, charge-discharge performance and rate performance. Its first specific discharge capacity is about 187.9 mAh/g, the highest reaches 196.2 mAh/g, and the capacity retention rate is about 81.6% after 50 cycles. The cathode material, prepared by Na ₂CO ₃, has a lower specific discharge capacity, but has a higher capacity retention rate about 85.3% after 50 cycles.