CIESC Journal ›› 2019, Vol. 70 ›› Issue (7): 2426-2438.DOI: 10.11949/0438-1157.20190081

• Reviews and monographs • Previous Articles     Next Articles

Interface design and properties of core-shell structure cathode materials

Liubin SONG(),Peng JIANG,Zhongliang XIAO(),Chengfeng ZHOU,Anxian LI,Zhenzhen CHI   

  1. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China
  • Received:2019-01-25 Revised:2019-04-19 Online:2019-07-05 Published:2019-07-05
  • Contact: Zhongliang XIAO

核壳结构正极材料界面设计与性能研究

宋刘斌(),蒋鹏,肖忠良(),周乘风,黎安娴,池振振   

  1. 长沙理工大学化学与食品工程学院,电力与交通材料保护湖南省重点实验室,湖南 长沙 410114
  • 通讯作者: 肖忠良
  • 作者简介:宋刘斌(1981—),男,博士,讲师,<email>kjcsongliubin@163.com</email>
  • 基金资助:
    中国科学院环境监测STS项目(KFJ-SW-STS-173)

Abstract:

The core-shell structure battery material can produce synergistic effect from core and shell and has the advantages of high specific capacity, great redox reversibility, high ion diffusion rate and low cost and strong security. It has wide application in battery materials research.The core-shell structure design of ternary battery materials is mainly divided into non-electroactive materials core-shell, common core-shell, concentration gradient core-shell structure design and full-concentration gradient core-shell structure design. The synthesis method of ternary battery materials for core-shell structure is mainly divided into chemical co-precipitation method, hydrothermal method, sol-gel method, and so on. Electrochemical, thermodynamics and kinetics properties were reviewed, the research status and application of theoretical calculation and numerical simulation of core-shell battery materials were discussed. Finally, the application and prospect of core-shell structural cathode materials were briefly introduced.

Key words: core-shell structure, electrochemical, thermodynamics, kinetics, simulation calculation

摘要:

核壳结构电池材料能从核心和壳体两方面产生协同作用,具有比容量高、氧化还原可逆性好、离子扩散速率高、成本低、安全性强等优点,在电池材料研究中有广泛应用。三元电池材料的核壳结构设计主要分为非电活性材料核壳结构设计、普通核壳结构设计、浓度梯度核壳结构设计、全浓度梯度核壳结构设计等;核壳结构三元电池材料的合成方法主要分为:化学共沉淀法、水热法、溶胶-凝胶法等,综述了核壳结构电池材料热力学、电化学、动力学性能,对核壳结构电池材料理论计算、数值模拟的研究现状和应用进行了阐述,最后简述了核壳结构正极材料的应用和展望。

关键词: 核壳结构, 电化学, 热力学, 动力学, 模拟计算

CLC Number: