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Publikováno v:
Electrochemistry Communications, Vol 13, Iss 11, Pp 1233-1235 (2011)
Carbon-coated monoclinic Li3V2(PO4)3 (LVP/C) cathode material has been successfully prepared by a novel glycine-assisted sol–gel method. The product is investigated by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TE
Autor:
Grigory Salitra, C. Stinner, N. Schall, Guenter Semrau, Ronit Sharabi, Valentina Borgel, Elena Markevich, Doron Aurbach, M. Schmidt
Publikováno v:
Electrochemistry Communications, Vol 13, Iss 8, Pp 800-802 (2011)
The improved cycling performance of a LiCoPO4 cathode was observed in a 1 M LiPF6 ethylene carbonate (EC)/dimethyl carbonate (DMC) solution in LiCoPO4/Li cells with quartz separators. The reasons for the fast capacity fading of these cells with the o
Publikováno v:
Electrochemistry Communications, Vol 13, Iss 7, Pp 711-713 (2011)
Sr2Fe1.5Mo0.5O6 is a mixed ionic and electronic conductor which can be applied as both cathode and anode material in intermediate-temperature solid oxide fuel cells. To enhance its cathode performance, Ce0.8Sm0.2O1.9 nanoparticles are deposited using
Autor:
Ke Sun, Shen J. Dillon
Publikováno v:
Electrochemistry Communications, Vol 13, Iss 2, Pp 200-202 (2011)
A Fire and quench method has been applied to coat LiCoO2 with a disordered Li3PO4 film. The coated LiCoO2 powders display a 50% increase in power density relative to uncoated powders. The improvement in rate capability is consistent with other observ
Publikováno v:
Electrochemistry Communications, Vol 13, Iss 2, Pp 166-168 (2011)
The three-dimensional microstructure of a porous composite cathode for lithium-ion cells has been analyzed by a combined focused ion beam (FIB)/scanning electron microscopy (SEM) approach. The spatial distributions of 1) carbon black as electronic co
Publikováno v:
Electrochemistry Communications, Vol 3, Iss 11, Pp 670-674 (2001)
The fluid velocity and temperature fields and the trajectories of the hydrogen bubbles evolving from the cathode in a fluorine production cell were studied by using the finite element method. It was examined the effect of the configuration of the sli
Publikováno v:
Electrochemistry Communications, Vol 3, Iss 10, Pp 553-556 (2001)
We report on a high energy density VOPO4·2H2O cathode material prepared by the sonochemical method. VOPO4·2H2O is rapidly prepared within 15 min by ultrasonic irradiation of an aqueous solution containing V2O5 and H3PO4. The sonochemically synthesi
Publikováno v:
Electrochemistry Communications, Vol 3, Iss 8, Pp 425-428 (2001)
Composite cathodes were made by blending the LiMn2O4 spinel with 40–60% (wt) LiNi0.8Co0.2O2. The cyclic voltammetry (CV) response gives three pairs of separated redox peaks when a sweep rate of 0.05 mV/s was used over the potential range from 3.0 t
Publikováno v:
Electrochemistry Communications, Vol 3, Iss 7, Pp 340-345 (2001)
Cathodes comprised of Fe(VI) salts, and capable of three electron reduction, are useful for the formation of energetic super-iron batteries. This study presents a synthesis procedure for SrFeO4 or strontium super-iron cathodic salts, and also introdu
Autor:
Yang-Kook Sun
Publikováno v:
Electrochemistry Communications, Vol 3, Iss 4, Pp 199-202 (2001)
Structural degradation of oxysulfide spinel, LiAl0.24Mn1.76O3.98S0.02 electrode in the 4 V region (4.3–3.0 V) cycled at high temperature has been investigated by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM).