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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Tuning Primary Particle Growth of Li1.2Ni0.2Mn0.6O2 by Nd-Modification for Improving the Electrochemical Performance of Lithium Ion Batteries
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Tuning Primary Particle Growth of Li1.2Ni0.2Mn0.6O2 by Nd-Modification for Improving the Electrochemical Performance of Lithium Ion Batteries

机译:通过ND改性调节Li1.2Ni0.2Mn0.6O2的一次粒子生长,提高锂离子电池电化学性能

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摘要

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, Li-1.2(Ni0.2Mn0.6)(1-x)NdxO2 (x 0.01) could stabilize the framework and suppress the decay of discharge voltage during the cycle process. As a result, Li-1.2(Ni0.2Mn0.6)(1-x)NdxO2 (x = 0.01) cathode material shows a discharge capacity of 187.1 mA h g(-1) (1 C) at 25 degrees C and 130.2 mA h g(-1) (0.1 C) at -20 degrees C, which is considered as a new generation of cathode materials for lithium ion batteries.
机译:通过简单的固态反应成功制备具有不同量的ND改性的锂的阴极材料(Li1.2Ni0.2Mn0.6O2)。 结果表明,ND改性可以控制原始颗粒的生长和紧致性。 另外,在低温下,ND改性的Li1.2Ni0.2Mn0.6O2显示出良好的电化学性能。 受益于ND的独特结构特征和协同作用,Li-1.2(Ni0.2Mn0.6)(1-x)NdxO2(x 0.01)可以稳定框架并在循环过程中抑制放电电压的衰减。 结果,Li-1.2(Ni0.2Mn0.6)(1-x)NdxO2(x = 0.01)阴极材料显示出187.1mA Hg(-1)(1c)的放电容量,在25℃和130.2 mA HG(-1)(0.1c)在-20℃下,被认为是用于锂离子电池的新一代阴极材料。

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