核壳结构正极材料界面设计与性能研究

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。

Interface design and properties of core-shell structure cathode materials

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.