A Feasible Dual Modification Strategy of Internal Anion Redox Chemistry and Surface Engineering on P2 Layer-Structured Cathodes in Sodium-Ion Batteries

• DOI: 10.1021/acsami.3c19489
• Publication Date: 2024-05-06T23:33:41Z
• Authors: Dong Wang; Chaoqiong Zhu; Yihua Liu; ChangYan Hu; Huan Yang; Zhuangzhi Li; Ting Chen; Benhe Zhong; Zhenguo Wu; Xiaodong Guo
• Keywords: Surface Modification

Boosting the anion redox reaction opens up a possibility of further capacity enhancement on transition-metal-ion redox-only layer-structured cathodes for sodium-ion batteries. To mitigate deteriorating impact internal and surface structure cathode caused by inevitable increase in operation voltage, probing solution to promote bulk-phase crystal stability chemistry environment facilitate electrochemical performance is key issue. A dual modification strategy establishing an hybrid activation trigger agent inside combination with oxide coating successfully developed. P2-type layer materials Zn/Li (Na–O–Zn@Na–O–Li) triggers ZnO possess superior cycle performance, along outstanding structural stability, decreased Mn-ion dissolution effect, less particle cracking during cycling process. This study represents facile perform optimization property toward high-performance layered features