Electrochemical Sodium Insertion into the 3D-framework of Na_3M_2(PO_4)_3 (M=Fe, V)

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概要

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• Insertion of sodium into phosphates Na_3M_2 (PO_4)_3 (M=Fe, V) were investigated electrochemically to determine the usefulness as the possible cathodes for sodium batteries. The discharge curves show that sodium ion can be accommodated into these hosts. Specific charges of up to 45mAhg^<-1> and 140mAhg^<-1> were obtained for Na/Na_3Fe_2 (PO_4)_3 and Na/Na_3V_2(PO_4)_3 cells with liquid organic electrolytes at room temperature, respectively. Intercalation processes under constant current densities of 0.1mAcm^<-2> were reversible within the range of composition 3.0<x<3.4 for Na_xFe_2 (PO_4)_3 and 1.2<x<3.8 for Na_xV_2 (PO_4)_3.

• 九州大学の論文

著者

• Yamaki J

  Kyushu Univ. Kasuga‐shi Jpn

• Okada Shigeto

  Institute Of Advanced Material Study Kyushu University

• UEBOU Yasushi

  Graduate School of Engineering Sciences, Kyushu University

• Uebou Yasushi

  Graduate School Of Engineering Sciences Kyushu University

関連論文

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