Co-doping aluminum and boron enhances the stability and electrochemical properties of nickel-rich cathode materials for lithium-ion batteries.

Enhancement of the performance of lithium-ion batteries is a critical strategy for addressing the challenges associated with cost and raw materials. By doping boron (B), aluminum (Al), and aluminum/boron (Al/B) utilizing the sol-gel method, we demonstrate a substantial improvement in the cycling performance of Ni-rich lithium nickel manganese cobalt oxide (NMC) as an electrode. While the initial specific capacitance of the doped samples may be lower than that of the pristine NMC, these samples demonstrate a notable increase in specific capacitance during subsequent cycles, reaching a peak around the 10 cycle and nearing the highest specific capacitance observed in NMC cathodes.

Development of Sodium-Lithium-Manganese-Cobalt Oxide with B Doping or B/F Dual Doping as Cathode Electrode Materials for Sodium-Ion Batteries.

The abundance of raw materials is a significant advantage that positions sodium-ion batteries (SIBs) as a promising energy storage solution for the future. However, the low cycle efficiency and poor rate capacity of cathode materials have hindered the commercialization of SIBs, prompting extensive research efforts to address these challenges. Ion doping into the material structure is considered to be an effective, simple, and scalable approach to enhancing the electrical performance of cathode materials.