Volume 31, Issue 5
Physical Inorganic Chemistry
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ChemInform Abstract: Improvement of Discharge Capacity of β-Fe2(SO4)3-Type Li3V2(PO4)3 by Stabilizing High Temperature Orthorhombic Phase at Room Temperature.

Hirokazu Ohkawa

Hirokazu Ohkawa

Dep. Chem. Chem. Eng., Fac. Eng., Niigata Univ., Ikarashi, Niigata 950-21, Japan

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Kenji Yoshida

Kenji Yoshida

Dep. Chem. Chem. Eng., Fac. Eng., Niigata Univ., Ikarashi, Niigata 950-21, Japan

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Mai Saito

Mai Saito

Dep. Chem. Chem. Eng., Fac. Eng., Niigata Univ., Ikarashi, Niigata 950-21, Japan

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Kazuyoshi Uematsu

Kazuyoshi Uematsu

Dep. Chem. Chem. Eng., Fac. Eng., Niigata Univ., Ikarashi, Niigata 950-21, Japan

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Kenji Toda

Kenji Toda

Dep. Chem. Chem. Eng., Fac. Eng., Niigata Univ., Ikarashi, Niigata 950-21, Japan

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Mineo Sato

Mineo Sato

Dep. Chem. Chem. Eng., Fac. Eng., Niigata Univ., Ikarashi, Niigata 950-21, Japan

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First published: 11 June 2010

Abstract

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ChemInform Abstract

The cathode performance of Li3V2(PO4)3 and Li3(V1-xZrx)2 (PO4)3 with x = 0.05—0.02 is studied. TG/DTA results show two phase transitions for Li3V2(PO4)3 while the Zr-substituted phases exhibit no phase transition. Powder XRD and conductivity measurement confirm the stabilization of the high temp. phase at room temperature. The discharge capacity of the Zr-substituted phases is much larger than that of pure Li3V2(PO4)3.

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