| 服役温度对多壁碳纳米管/Li1.18Ni0.15Co0.15Mn0.52O2复合正极材料性能的影响 |
| Effect of Service Temperature on Properties of Multi-walled Carbon Nanotubes/Li1.18Ni0.15Co0.15Mn0.52O2 Composite Positive Materials |
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| 摘要: 通过煅烧的方式制得多壁碳纳米管（MWCNT）质量分数为3%的MWCNT/Li1.18Ni0.15Co0.15Mn0.52O2锂离子电池复合正极材料，并测试了复合正极材料在不同服役温度环境下的电化学性能：-20和60℃下服役时，其放电容量分别高达169、303 mAh·g-1，且展示出良好的倍率性能和循环稳定性。结合电化学阻抗测试结果可知，MWCNT均匀附着在层状粒子的表面，有效减少了电解液对电极材料的侵蚀，阻碍了表面膜的生成，同时提高了材料的电子电导率。 |
| 关键词: 富锂层状正极材料 多壁碳纳米管 服役温度 电化学性能 |
| 基金项目: 黑龙江省普通本科高等学校青年创新人才培养计划（No.2018103）资助。 |
| Abstract: In this paper, the electrochemical performance of the composite material with MWCNT content (mass fraction) of 3% at -20 and 60℃ was reported, and the results show that the specific capacities were as high as 169 and 303 mAh·g-1, respectively, as well as superior rate performance and cycle stability. Combined with the results of the electrochemical impedance test, it can be concluded that MWCNTs were attached to the surface of the layered particles uniformly, which can reduce the corrosion of the electrode material effectively, hinder the production of the solid electrolyte interface film, and improve the electronic conductivity of the material. |
| Keywords: lithium-rich layered cathode materials multi-walled carbon nanotubes service temperature electrochemical performance |
| 投稿时间：2020-10-09 修订日期：2021-03-03 |
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| 王玉慧,张循海,王超会.服役温度对多壁碳纳米管/Li1.18Ni0.15Co0.15Mn0.52O2复合正极材料性能的影响[J].无机化学学报,2021,37(4):661-667. |
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