| 具备高首周库仑效率的高性能锂离子电池负极材料Li2Ni2(MoO4)3@C的制备 |
| Preparation of Li2Ni2(MoO4)3@C Composite as High-Performance Anode Material for Lithium-Ion Batteries with High Initial Coulombic Efficiency |
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| 摘要: 采用常规的固相反应法结合机械球磨制备了含碳质量分数23.7%的Li2Ni2（MoO4）3@C复合材料，并应用于锂离子电池负极。与纯Li2Ni2（MoO4）3相比，Li2Ni2（MoO4）3@C具有优异的电化学性能，在电流密度为200 mA·g-1时，50周循环后，可逆容量高达845 mAh·g-1。值得注意的是，Li2Ni2（MoO4）3@C的首周库仑效率高达85%。此外，运用循环伏安法对Li2Ni2（MoO4）3@C复合物存储锂行为进行了初步探索。 |
| 关键词: Li2Ni2(MoO4)3 固相合成反应 负极材料 锂离子电池 高首周库仑效率 |
| 基金项目: 山西师范大学现代文理学院基础研究项目（No.2020JCYJ18）和山西师范大学博士科研启动项目（No.0505/02070305）资助。 |
| Abstract: Herein, Li2Ni2(MoO4)3@C composite with mass ratio of 23.7% of carbon was prepared using conventional solid-state method combined with mechanical ball milling and first investigated as the new anode of lithium-ion batteries. Compared with pure Li2Ni2(MoO4)3, Li2Ni2(MoO4)3@C presented an outstanding electrochemical performance, where a high reversible capacity of 845 mAh·g-1 can be acquired at a current density of 200 mA·g-1 after 50 cycles. It's worth noting that Li2Ni2(MoO4)3@C delivered high initial coulombic efficiency of 85%. Moreover, the lithium intercalation/de-intercalation behavior of Li2Ni2(MoO4)3@C was preliminarily investigated by cyclic voltammetry. |
| Keywords: Li2Ni2(MoO4)3 solid state synthesis anode material lithium-ion batteries high initial coulombic efficiency |
| 投稿时间：2021-03-12 修订日期：2021-08-08 |
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| 张建银,刘浩浩,史笑笑.具备高首周库仑效率的高性能锂离子电池负极材料Li2Ni2(MoO4)3@C的制备[J].无机化学学报,2021,37(10):1862-1870. |
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