Yu-Xin Chang, Yu-Jie Guo, Ya-Xia Yin, Wei-Huan He, Mengmeng Yan, Li-Rong Zheng, Jing Zhang, Qinghua Zhang, Dong Su, Xing Zhang, Jianfeng Mao, Guanjie Li, Shilin Zhang, Sailong Xu
O3-type layered oxide cathodes (Na x TMO2 ) for sodium-ion batteries (SIBs) have attracted significant attention as one of the most promising potential candidates for practical energy storage applications. The poor Na+ diffusion kinetics is, however, one of the major obstacles to advancing large-scale practical application. Herein, we report bismuth-doped O3-NaNi0.5 Mn0.5 O2 (NMB) microspheres consisting of unique primary nanoplatelets with the radially oriented {010} active lattice facets. The NMB combines the advantages of the oriented and exposed electrochemical active planes for direct paths of Na+ diffusion, and the thick primary nanoplatelets for less surface parasitic reactions with the electrolyte...
March 27, 2024: ACS Applied Materials & Interfaces