Nd-modified Li-rich cathode materials (Li1.2Ni0.2Mn0.6O2) with different amounts are successfully prepared through a simple solid state reaction. The results indicate that Nd-modification could control the growth and compactness of the… Click to show full abstract
Nd-modified Li-rich cathode materials (Li1.2Ni0.2Mn0.6O2) with different amounts are successfully prepared through a simple solid state reaction. The results indicate that Nd-modification could control the growth and compactness of the original particles. Additionally, at low temperature, Nd-modified Li1.2Ni0.2Mn0.6O2 shows good electrochemical performance. Benefiting from the unique structural features and synergistic effects of Nd, Li1.2(Ni0.2Mn0.6)1–xNdxO2 (x = 0.01) could stabilize the framework and suppress the decay of discharge voltage during the cycle process. As a result, Li1.2(Ni0.2Mn0.6)1–xNdxO2 (x = 0.01) cathode material shows a discharge capacity of 187.1 mA h g–1 (1 C) at 25 °C and 130.2 mA h g–1 (0.1 C) at −20 °C, which is considered as a new generation of cathode materials for lithium ion batteries.
Journal Title: ACS Sustainable Chemistry & Engineering
Year Published: 2019
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