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Nitrogen-Doped Porous Ag–C@Co3O4 Nanocomposite for Boosting Lithium Ion Batteries
Energy & Fuels ( IF 5.2 ) Pub Date : 2022-02-21 , DOI: 10.1021/acs.energyfuels.1c04338 Zhixin Ge 1 , Lei Jiang 2 , Fenghao Liang 2 , Zhe Zhang 2 , Daoning Wu 2 , Wenkai Ye 2 , Ning Han 3 , Yichuan Rui 2 , Wei Zhang 3 , Bohejin Tang 2
Energy & Fuels ( IF 5.2 ) Pub Date : 2022-02-21 , DOI: 10.1021/acs.energyfuels.1c04338 Zhixin Ge 1 , Lei Jiang 2 , Fenghao Liang 2 , Zhe Zhang 2 , Daoning Wu 2 , Wenkai Ye 2 , Ning Han 3 , Yichuan Rui 2 , Wei Zhang 3 , Bohejin Tang 2
Affiliation
In this work, nitrogen-doped Ag-based metal–organic gels (Ag-MOGs) are introduced for the first time in the field of lithium ion batteries (LIBs) with good electrochemical performances. As a novel approach of the nitrogen-doping method for LIBs, Ag–carbon (Ag–C) as the precursor is formed from Ag-MOGs and Co3O4 nanoparticles are prepared by different pyrolysis processes and maintain different particle sizes as the primary active materials. Co3O4 nanoparticles with smaller sizes (10–15 nm) covering the surface of Ag–C show good electrochemical performance because of the good conductivity of silver particles and the nitrogen doping of Ag–C. In particular, the composite shows a high rate capability of 516.4 mAh g–1 (5 A g–1) and strong cycling stability of 1275.78 mAh g–1 at the current density of 100 mA g–1 even after 100 cycles.
中文翻译:
用于提升锂离子电池的氮掺杂多孔 Ag–C@Co3O4 纳米复合材料
在这项工作中,氮掺杂的银基金属有机凝胶(Ag-MOGs)首次被引入具有良好电化学性能的锂离子电池(LIBs)领域。作为一种新的LIBs氮掺杂方法,由Ag-MOGs和Co 3 O 4纳米粒子形成作为前体的Ag-碳(Ag-C)纳米粒子通过不同的热解过程制备并保持不同的粒径作为主要活性材料。由于银粒子的良好导电性和Ag-C的氮掺杂,覆盖Ag-C表面的较小尺寸(10-15 nm)的Co 3 O 4纳米粒子表现出良好的电化学性能。特别是,该复合材料显示出 516.4 mAh g –1的高倍率能力(5 A g –1 ) 和 1275.78 mAh g –1的强循环稳定性在 100 mA g –1的电流密度下,即使在 100 次循环后也是如此。
更新日期:2022-02-21
中文翻译:
用于提升锂离子电池的氮掺杂多孔 Ag–C@Co3O4 纳米复合材料
在这项工作中,氮掺杂的银基金属有机凝胶(Ag-MOGs)首次被引入具有良好电化学性能的锂离子电池(LIBs)领域。作为一种新的LIBs氮掺杂方法,由Ag-MOGs和Co 3 O 4纳米粒子形成作为前体的Ag-碳(Ag-C)纳米粒子通过不同的热解过程制备并保持不同的粒径作为主要活性材料。由于银粒子的良好导电性和Ag-C的氮掺杂,覆盖Ag-C表面的较小尺寸(10-15 nm)的Co 3 O 4纳米粒子表现出良好的电化学性能。特别是,该复合材料显示出 516.4 mAh g –1的高倍率能力(5 A g –1 ) 和 1275.78 mAh g –1的强循环稳定性在 100 mA g –1的电流密度下,即使在 100 次循环后也是如此。