文献类型：期刊文献

英文题名：Synergistic effect of Na and B co-doping on the electrochemical properties of LiNi0.865Co0.095Al0.04O2 cathode materials for Li-ion batteries

作者：Ge, Wujie Fu, Yuanxiang Wang, Chaonan Yan, Lirong Feng, Qi Yan, Bing Li, Xiang

第一作者：葛武杰

通信作者：Ge, WJ[1];Fu, YX[2];Li, X[3]|[14440b94a9fd86414f01e]葛武杰;[1444008870e2dac640606]葛武杰;

机构：[1]Shanxi Inst Technol, Dept Mat Sci & Engn, Yangquan 045000, Peoples R China;[2]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China;[3]Henan Univ Sci & Technol, Mat Sci & Technol, Luoyang 471023, Peoples R China

第一机构：Shanxi Inst Technol, Dept Mat Sci & Engn, Yangquan 045000, Peoples R China

通信机构：corresponding author), Shanxi Inst Technol, Dept Mat Sci & Engn, Yangquan 045000, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China;corresponding author), Henan Univ Sci & Technol, Mat Sci & Technol, Luoyang 471023, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2025

卷号：46

外文期刊名：MATERIALS TODAY COMMUNICATIONS

收录：;EI(收录号：20250103560);Scopus(收录号：2-s2.0-105002580306);WOS:【SCI-EXPANDED(收录号:WOS:001473614100001)】；

基金：This work was financially supported by the High Level Scientific Research Funding Project of Shanxi Institute of Technology (2024QD-01) .

语种：英文

外文关键词：Lithium-ion battery; Ni-rich cathode materials; Na/B co-doping; Electrochemical performance

摘要：The high-nickel cathode material LiNi0.865Co0.095Al0.04O2 (NCA) has garnered significant attention due to its high energy density and cost-effectiveness in production. However, this material is also prone to rapid capacity degradation, primarily due to phase transitions occurring during the redox process. In this paper, the comodification with Na and B cations is employed to stabilize the lattice structure and enhance the electrochemical performance of the NCA material. It can be found that the incorporation of Na and B cations in the lattice can reduce cation mixing, expand the Li-layer spacing and improve crystal stability, thereby increasing the specific capacity and cyclic stability of the NCA material. Specifically, the co-doped NCA-2 sample exhibits a specific capacity of 202.1 mAh/g at 0.1 C and maintains a capacity retention of 78.75 % at 1 C after 300 cycles, representing a substantial improvement over the pristine material (187.2 mAh/g and 61.68 % capacity retention). Moreover, at a current density of 10 C, the co-doped NCA-2 sample demonstrates a high specific capacity of 133.9 mAh/g, compared to 110.1 mAh/g for the pristine material. The Na/B co-doping strategy presented in this study offers a straightforward method to improve the cyclability and rate behavior of cathode materials, highlighting its potential for commercial applications.