氮掺杂碳包覆Bi 2 Mn 4 O 10 锂离子电池负极材料的制备及其电化学性能(英文)
发布时间:2023-12-24 13:42
为抑制高能锂离子电池负极材料Bi2Mn4O10容量的快速衰减,通过简单球磨法制备新型高纯Bi2Mn4O10/ECP-N(ECP-N为氮掺杂科琴黑)负极复合材料。所合成的Bi2Mn4O10/ECP-N复合材料在0.2C倍率下循环100次后可保持576.2m A·h/g的比容量,容量保持率为75%,而纯Bi2Mn4O10的容量保持率仅为27%。3C倍率下Bi2Mn4O10/ECP-N复合材料的放电容量仍保持在236.1 m A·h/g。引入氮掺杂的科琴黑ECP-N不仅可以有效地提高比表面积以缓冲体积膨胀,增强材料的电导率和可湿性,而且还可以促进离子传输和可逆转化反应。
【文章页数】:12 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Material synthesis
2.2 Material characterization
2.3 Electrochemical test
3 Result and discussion
3.1 Phase structure
3.2 SEM and TEM morphologies
3.3 N2 adsorption/desorption isotherms
3.4 XPS spectra
3.5 Electrocatalytic behavior
4 Conclusions
本文编号:3874625
【文章页数】:12 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Material synthesis
2.2 Material characterization
2.3 Electrochemical test
3 Result and discussion
3.1 Phase structure
3.2 SEM and TEM morphologies
3.3 N2 adsorption/desorption isotherms
3.4 XPS spectra
3.5 Electrocatalytic behavior
4 Conclusions
本文编号:3874625
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