caa a22 4500 47581486X CHVBK 20180406123807.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1023/A:1004013326603 doi (NATIONALLICENCE)springer-10.1023/A:1004013326603 Electrochemical properties of a new V2O5 xerogel [Elektronische Daten] [S. Mège, Y. Levieux, F. Ansart, J.M. Savariault, A. Rousset] Synthesis of V2O5 0.2 H2O xerogels by hydrolysis of alkoxide with addition of a surfactant molecule leads to a novel xerogel, which is more amorphous and has a slightly different structure from xerogels prepared by the same method without surfactant. This confers changed lithium insertion properties on the new material. Lithium ions are accommodated at sites different from the sites occupied in xerogels prepared without surfactant. Those new xerogels are able to receive up to almost 2.7 Li/V2O5; this represents one more lithium per V2O5 than other xerogels. On the other hand, they lose a large proportion of this capacity after the first discharge. The behaviour of the kinetic parameters as a function of lithium content also differs in the two xerogels. This shows that insertion of the first lithium ions in ‘classical' xerogels is difficult but induces a structural change which makes insertion of further lithium easier. This phenomenon was not observed in the xerogels prepared with surfactant. Furthermore, these present better interfacial properties. Kluwer Academic Publishers, 2000 electrochemical properties nationallicence lithium batteries nationallicence sol-gel process nationallicence surfactant nationallicence xerogel nationallicence Mège S. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut Levieux Y. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut Ansart F. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut Savariault J.M. CEMES, rue Jeanne Marvig, 31000, Toulouse, France aut Rousset A. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/6(2000-06-01), 657-664 0021-891X 30:6<657 2000 30 10800 https://doi.org/10.1023/A:1004013326603 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1004013326603 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mège S. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut NATIONALLICENCE 700 1- Levieux Y. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut NATIONALLICENCE 700 1- Ansart F. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut NATIONALLICENCE 700 1- Savariault J.M. CEMES, rue Jeanne Marvig, 31000, Toulouse, France aut NATIONALLICENCE 700 1- Rousset A. LCMIE, Université Paul Sabatier, Bât IIR1, 118 route de Narbonne, 31062, Toulouse Cedex 4, France aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/6(2000-06-01), 657-664 0021-891X 30:6<657 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer