Triple Conductive Wiring by Electron Doping, Chelation Coating and Electrochemical Conversion in Fluffy Nb₂ O₅ Anodes for Fast-Charging Li-Ion Batteries.

ABSTRACT: High-rate anode material is the kernel of developing fast-charging lithium ion batteries (LIBs). T-Nb₂ O₅ , well-known for its "room and pillar" structure and bulk pseudocapacitive effect, is expected to enable the fast lithium (de)intercalation. But this property is still limited by the low electronic conductivity or insufficient wiring manner. Herein, a strategy of triple conductive wiring through electron doping, chelation coating, and electrochemical conversion inside the microsized porous spheres consisting of dendrite-like T-Nb₂ O₅ primary particles is proposed to achieve the fast-charging and durable anodes for LIBs. The penetrative implanting of conformal carbon coating (derivative from polydopamine chelate) and NbO domains (induced by ex

SUBMITTER: Zheng Y 

PROVIDER: S-EPMC9443447 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature