金属氧化物/碳复合材料的制备及在锂离子电池中的应用
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- 英文论文题名：Synthesis of Metal Oxide/Carbon Materials with Improved Electrochemical Performance for Li-ion Batteries
- 论文作者：王元坤 ; 孙洪迪 ; 陈燕 ; 赵亭亭 ; 李忠涛 ; 吴明铂
- 英文论文作者：Yuankun Wang ; Hongdi Sun ; Yan Chen ; Tingting Zhao ; Zhongtao Li ; Mingbo Wu ; State Key Laboratory of Heavy Oil Processing ; China University of Petroleum
- 年：2016
- 作者机构：中国石油大学华东重质油国家重点实验室;
- 论文关键词：负极材料 ; 金属氧化物 ; 碳
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十分会：化学电源
- 语种：中文
- 分类号：TB332;TM912
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十分会 ; 化学电源
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：175k
- 原文格式：D
- 会议级别：全国
摘要
锂离子电池的电化学性能强烈的依赖于电极材料的性能。通过合理的材料设计和可行的实验方案设计可以提升电极材料在锂离子电池中的性能。金属氧化物具有较高的理论比容量和良好的电化学反应活性而倍受青睐。但是,金属氧化物由于其与锂离子反应的机理决定了其在充放电过程中会发生巨大的体积改变而破坏电极内结构,从而导致容量迅速衰减。为了改善金属氧化物电极材料的循环稳定性问题,一个有效的措施是将其与碳基材料进行复合构筑复合材料。碳的加入不仅可以作为骨架结构用于缓解金属氧化物在循环过程中体积膨胀的问题,而且可以显著提高材料的导电性。因此,我们制备出一系列金属氧化物/碳复合材料用于锂离子电池。这里,我将详细阐述我们组最近在金属氧化物/碳复合材料的一些进展。
The electrochemical performance of Li-ion batteries(LIBs) relies largely on a rational design and smart hybridization of active materials in the electrode.Various nanostuctured metal oxides(MOs)-based materials have demonstrated promising energy storage properties as electrode materials due to their charming reaction mechanism and high capacity.Unfortunately,the reversible charging/discharging process of most of these materials involves tremendous volume variation and dramatic mechanical stress,which leads to electrode disintegration and rapid capacity fading.In order to further improve the cycle life of MOs,one successful strategy is the combination of MOs with carbon materials,which could be considered as the conductive and elastic matrix to prevent the exfoliation and agglomeration of MOs during rechargeable cycling as well as increase the electrical conductivity of electrode.In this talk,I will present our recent development of rationally design and delicately tailor the MOs/carbon electrodes for advanced LIBs.
The electrochemical performance of Li-ion batteries(LIBs) relies largely on a rational design and smart hybridization of active materials in the electrode.Various nanostuctured metal oxides(MOs)-based materials have demonstrated promising energy storage properties as electrode materials due to their charming reaction mechanism and high capacity.Unfortunately,the reversible charging/discharging process of most of these materials involves tremendous volume variation and dramatic mechanical stress,which leads to electrode disintegration and rapid capacity fading.In order to further improve the cycle life of MOs,one successful strategy is the combination of MOs with carbon materials,which could be considered as the conductive and elastic matrix to prevent the exfoliation and agglomeration of MOs during rechargeable cycling as well as increase the electrical conductivity of electrode.In this talk,I will present our recent development of rationally design and delicately tailor the MOs/carbon electrodes for advanced LIBs.
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