Electrochemical Properties of High Surface Area Vanadium Oxide Aerogels

Abstract

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Partial Conversion of Current Collectors into Nickel Copper Oxide Electrode Materials for High-Performance Energy Storage Devices

“…However, the employment of binder can cause some problems, especially for pseudocapacitive electrodes. For example, some "dead sites" are formed by "burying" the surface of the active material, 16 and this will generate extra contact resistance which deteriorates the performance of the supercapacitor. For the second method, although fast charge/discharge kinetics are observed due to the presence of a highly conductive network throughout the electrode, achieving intimate adhesion between the material and the current collector remains challenging.…”

Facile synthesis of vanadia aerogels with controlled V3+/V4+ ratio

“…In practice, these aerogels are generally used as matrices for composites containing highly conductive organic or inorganic additives [6,7].…”

“…Typically, vanadium oxides containing vanadium in V 4 þ and V 5 þ oxidation states are used as cathode materials [7][8][9]. Recently, V 2 O 3 /VO 2 core-shell microspheres have been suggested by Fei et al for application in Li-ion batteries [10].…”

“…The choice of the solvent greatly affects the composition and microstructure of thus obtained materials [12,[15][16][17]. In vanadium oxides aerogels synthesis, V 2 O 5 Á nH 2 O wet gel is generally used as a precursor [3][4][5][6][7]. This compound contains vanadium in both V 4 þ and V 5 þ oxidation states [18].…”

Rapid synthesis of Mn3O4 by in-situ redox method and its capacitive performances

“…They have been widely applied as back up and pulse power sources for many electronic devices [1][2][3][4]. Among the supercapacitor electrode materials, amorphous hydrated ruthenium oxide is one of the most attractive candidates with remarkable high specific capacitance (over 700 F/g) [5][6][7][8].…”