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Cathode Properties of Na 3 MnPO 4 CO 3 Prepared by the Mechanical Ball Milling Method for Na-Ion Batteries

Author

Listed:
  • Baowei Xie

    (Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-1, Kasuga Koen, Kasuga 816-8580, Japan)

  • Ryo Sakamoto

    (Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-1, Kasuga Koen, Kasuga 816-8580, Japan)

  • Ayuko Kitajou

    (Organization for Research Initiatives, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan)

  • Kosuke Nakamoto

    (Institute of Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga Koen, Kasuga 816-8580, Japan)

  • Liwei Zhao

    (Institute of Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga Koen, Kasuga 816-8580, Japan)

  • Shigeto Okada

    (Institute of Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga Koen, Kasuga 816-8580, Japan)

  • Wataru Kobayashi

    (Tosoh Corporation, 3-8-2, Shiba, Minato-Ku, Tokyo 105-0014, Japan)

  • Masaki Okada

    (Tosoh Corporation, 3-8-2, Shiba, Minato-Ku, Tokyo 105-0014, Japan)

  • Toshiya Takahara

    (Tosoh Corporation, 3-8-2, Shiba, Minato-Ku, Tokyo 105-0014, Japan)

Abstract

A novel carbonophosphate, Na 3 MnPO 4 CO 3 , was synthesized as a cathode material using a mechanical ball milling method with starting materials of MnCO 3 and Na 3 PO 4 without washing or drying. Duo to the formation of nano-size particles and good dispersion of the obtained Na 3 MnPO 4 CO 3 , the initial discharge capacity in an organic electrolyte of 1 M NaPF 6 /ethylene carbonate (EC): dimethyl carbonate (DMC) (1:1 v / v ) was 135 mAh∙g −1 and 116 mAh∙g −1 at 1/30 C and 1/10 C, respectively. We also investigated the cathode properties of Na 3 MnPO 4 CO 3 in an aqueous electrolyte of 17 m NaClO 4 . This is the first investigation of the electrochemical performance of Na 3 MnPO 4 CO 3 with aqueous electrolyte. Na 3 MnPO 4 CO 3 achieved a discharge capacity as large as 134 mAh g −1 even at a high current density of 2 mA cm −2 (0.5 C), because of the high ionic conductivity of the aqueous electrolyte of 17 m NaClO 4 .

Suggested Citation

  • Baowei Xie & Ryo Sakamoto & Ayuko Kitajou & Kosuke Nakamoto & Liwei Zhao & Shigeto Okada & Wataru Kobayashi & Masaki Okada & Toshiya Takahara, 2019. "Cathode Properties of Na 3 MnPO 4 CO 3 Prepared by the Mechanical Ball Milling Method for Na-Ion Batteries," Energies, MDPI, vol. 12(23), pages 1-10, November.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:23:p:4534-:d:291909
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    References listed on IDEAS

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    1. Mauro Pasta & Colin D. Wessells & Nian Liu & Johanna Nelson & Matthew T. McDowell & Robert A. Huggins & Michael F. Toney & Yi Cui, 2014. "Full open-framework batteries for stationary energy storage," Nature Communications, Nature, vol. 5(1), pages 1-9, May.
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