FigsharePub Date : 2019-10-29DOI: 10.1021/acssuschemeng.9b03584.s001
Jinju Song (1595479), Sohyun Park (78358), Sungjin Kim (106517), Vinod Mathew (1595476), Muhammad Hilmy Alfaruqi (3559733), Jeonggeun Jo (2571127), Jaekook Kim (1595473)
{"title":"Uniform Carbon Coated Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>O<sub>2<i>x</i></sub>F<sub>3–2<i>x</i></sub> Nanoparticles for Sodium Ion Batteries as Cathode","authors":"Jinju Song (1595479), Sohyun Park (78358), Sungjin Kim (106517), Vinod Mathew (1595476), Muhammad Hilmy Alfaruqi (3559733), Jeonggeun Jo (2571127), Jaekook Kim (1595473)","doi":"10.1021/acssuschemeng.9b03584.s001","DOIUrl":"https://doi.org/10.1021/acssuschemeng.9b03584.s001","url":null,"abstract":"A uniformncarbon-coated Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>O<sub>2<i>x</i></sub>F<sub>3–2<i>x</i></sub> (NVPOF/C) nanoparticle synthesized by a novel pyronsynthesis method is utilized for sodium-ion batteries (SIBs) as ancathode. Remarkably, the electrochemical properties are performednat high rates show significantly improved discharge capacity. At 0.1nC, the NVPOF/C cathode shows a discharge capacity of 130 mAh g<sup>–1</sup>, corresponding to 100% of the theoretical capacity.nEven at 50 C, a discharge capacity of ∼85 mAh g<sup>–1</sup> could be attained. The in situ X-ray diffraction and ex-situ synchrotronnX-ray absorption near edge structure spectroscopy results exposednthat the reversible sodium ion insertion/extraction into/from NVPOF/Cnhost structure occurs with a small volume change (3.4%), indicatingnthe structural stability of the cathode. Our study validates thatnthe Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>O<sub>2<i>x</i></sub>F<sub>3–2x</sub>/C electrode is a promisingncandidate for developing high power/energy density cathodes for SIBs.","PeriodicalId":522284,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147894532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}