Abstract

Supercritical drying of gels yields amorphous aerogels (ARG) that serve as reversible, high capacity hosts for lithium ion intercalation. We have found that ARG material consists of a highly interconnected solid network that has a surface area up to 450 m2/g and a specific pore volume of 2.3 cm3/g. The material hosts at least per mole of (ARG) as determined by both galvanostatic intermittent titration (GITT) and chemical lithiation (CL) techniques. The equilibrium voltage‐composition curve is identical for both GITT and CL techniques as well. (ARG) has a specific energy in excess of 1600 Wh/kg, the highest ever reported for any vanadium oxide host.

Keywords

Intercalation (chemistry)ChemistryVanadium oxideLithium (medication)Amorphous solidSupercritical fluidAerogelVanadiumTitrationSpecific surface areaElectrodeOxideInorganic chemistryChemical engineeringMaterials sciencePhysical chemistryNanotechnologyOrganic chemistry

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Publication Info

Year
1996
Type
article
Volume
143
Issue
7
Pages
2099-2104
Citations
174
Access
Closed

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D. B. Le, Stefano Passerini, Jingchuan Guo et al. (1996). High Surface Area  V 2 O 5 Aerogel Intercalation Electrodes. Journal of The Electrochemical Society , 143 (7) , 2099-2104. https://doi.org/10.1149/1.1836965

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DOI
10.1149/1.1836965