TY - JOUR
T1 - Enhanced Lithium- and Sodium-Ion Storage in an Interconnected Carbon Network Comprising Electronegative Fluorine
AU - Hong, Seok Min
AU - Etacheri, Vinodkumar
AU - Hong, Chulgi Nathan
AU - Choi, Seung Wan
AU - Lee, Ki Bong
AU - Pol, Vilas G.
N1 - Funding Information:
This work was supported by a National Research Foundation (NRF) grant funded by the Korean governments Ministry of Science ICT and Future Planning, through the Basic Science Research Program (2015R1A1A1A05001363), and the R&D Center for Reduction of Non-CO2 Greenhouse Gases (2013001690013) funded by the Korean Ministry of Environment (MOE) as the Global Top Environment R&D Program.
Publisher Copyright:
© 2017 American Chemical Society.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/6/7
Y1 - 2017/6/7
N2 - Fluorocarbon (CxFy) anode materials were developed for lithium- and sodium-ion batteries through a facile one-step carbonization of a single precursor, polyvinylidene fluoride (PVDF). Interconnected carbon network structures were produced with doped fluorine in high-temperature carbonization at 500-800 °C. The fluorocarbon anodes derived from the PVDF precursor showed higher reversible discharge capacities of 735 mAh g-1 and 269 mAh g-1 in lithium- and sodium-ion batteries, respectively, compared to the commercial graphitic carbon. After 100 charge/discharge cycles, the fluorocarbon showed retentions of 91.3% and 97.5% in lithium (at 1C) and sodium (at 200 mA g-1) intercalation systems, respectively. The effects of carbonization temperature on the electrochemical properties of alkali metal ion storage were thoroughly investigated and documented. The specific capacities in lithium- and sodium-ion batteries were dependent on the fluorine content, indicating that the highly electronegative fluorine facilitates the insertion/extraction of lithium and sodium ions in rechargeable batteries.
AB - Fluorocarbon (CxFy) anode materials were developed for lithium- and sodium-ion batteries through a facile one-step carbonization of a single precursor, polyvinylidene fluoride (PVDF). Interconnected carbon network structures were produced with doped fluorine in high-temperature carbonization at 500-800 °C. The fluorocarbon anodes derived from the PVDF precursor showed higher reversible discharge capacities of 735 mAh g-1 and 269 mAh g-1 in lithium- and sodium-ion batteries, respectively, compared to the commercial graphitic carbon. After 100 charge/discharge cycles, the fluorocarbon showed retentions of 91.3% and 97.5% in lithium (at 1C) and sodium (at 200 mA g-1) intercalation systems, respectively. The effects of carbonization temperature on the electrochemical properties of alkali metal ion storage were thoroughly investigated and documented. The specific capacities in lithium- and sodium-ion batteries were dependent on the fluorine content, indicating that the highly electronegative fluorine facilitates the insertion/extraction of lithium and sodium ions in rechargeable batteries.
KW - fluorocarbon
KW - interconnected carbon network
KW - lithium-ion batteries
KW - polyvinylidene fluoride
KW - sodium-ion batteries
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U2 - 10.1021/acsami.7b03456
DO - 10.1021/acsami.7b03456
M3 - Article
C2 - 28537377
AN - SCOPUS:85020274273
VL - 9
SP - 18790
EP - 18798
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 22
ER -
