Amorphous Vanadium Oxides with Dual ion Storage Mechanism for High-Performance Aqueous Zinc ion Batteries.

Autor: Ma Y; School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China.; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China., Cao W; School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China.; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China., Liu Y; School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China.; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China., Li Q; School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China.; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China., Cai S; School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China.; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China., Bao SJ; School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China.; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China., Xu M; School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China.; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2024 May; Vol. 20 (19), pp. e2306790. Date of Electronic Publication: 2023 Dec 21.
DOI: 10.1002/smll.202306790
Abstrakt: Owing to the extremely limited structural deformation caused by the introduction of guest ions that their rigid structure can sustain, crystalline materials typically fail owing to structural collapse when utilized as electrode materials. Amorphous materials, conversely, are more resistant to volume expansion during dynamic ion transport and can introduce a lot of defects as active sites. Here, The amorphous polyaniline-coated/intercalated V 2 O 5 ·nH 2 O (PVOH) nanowires are prepared by in situ chemical oxidation combined with self-assembly strategy, which exhibited impressive electrochemical properties because of its short-range ordered crystal structure, oxygen vacancy/defect-rich, improved electronic channels, and ionic channels. Through in situ techniques, the energy storage mechanism of its Zn 2+ /H + co-storage is investigated and elucidated. Additionally, this work provides new insights and perspectives for the investigation and application of amorphous cathodes for aqueous zinc ion batteries.
(© 2023 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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