Yonglin Tang

Feb 15, 2024 | nature.com | Yonglin Tang |Qinghua Zhang |Wenhua Zuo |Shiyuan Zhou |Zhongyuan Huang |Yinguo Xiao | +7 more

AbstractSodium-ion batteries are among the most promising alternatives to lithium-based technologies for grid and other energy storage applications due to their cost benefits and sustainable resource supply. For the cathode—the component that largely determines the energy density of a sodium-ion battery cell—one major category of materials is P2-type layered oxides.

Jan 10, 2024 | nature.com | Qinghua Zhang |Yonglin Tang |Zhongyuan Huang |Inhui Hwang |Shiyuan Zhou |Yinguo Xiao | +7 more

AbstractIn P2-type layered transition metal (TM) oxides, which are typical cathode materials for Na-ion batteries, the presence of Li within the TM layer could lead to the formation of specific Na–O–Li configurations that trigger additional oxygen redox at high charging voltages. However, the prismatic-type (P-type) to octahedral-type (O-type) phase transition and irreversible TM migration could be simultaneously aggravated in high state of charge, resulting in structural distortion.