Manipulating Interphase Chemistry by Endogenous Doping Toward High‑Performance Hard Carbon Anodes for Sodium‑Ion Batteries (IMAGE)
Caption
- Based on the Maillard reaction principle, an endogenous doping strategy was developed to induce the formation of a rich-inorganic solid–electrolyte interphase (SEI) layer on a hard carbon anode.
- The hard carbon anode with inorganic-enriched SEI layer delivers enhanced rate, high initial coulombic efficiency and stable cycling performance.
- The assembled full cell with a Na3V2(PO4)3 cathode exhibits excellent cycling stability over 700 cycles, achieving a capacity retention of 89.2% at 1 C with an N/P ratio of 1.12.
Credit
Hang Li, Yuan Zhou, Yutian Yang, Yining Chen, Yuying Zhang, Zhe Wang, Quan Zong, Guozhao Fang, Shuang Zhou*, Anqiang Pan*.
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License
CC BY-NC-ND