POSITIVE ELECTRODE MATERIAL FOR SODIUM ION BATTERY AND SODIUM ION BATTERY

To provide a positive electrode material for a sodium-ion battery with good charge/discharge capacity under faster conditions, such as 1000C, which corresponds to a charge/discharge time of 3.6 seconds by solving a problem in which sodium-ion batteries have been attracting attention as a post-lithiu...

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Hauptverfasser:	NAOI KATSUHIKO, OKITA NAOHISA, HARADA YUTA, NAOI KAZUKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:	To provide a positive electrode material for a sodium-ion battery with good charge/discharge capacity under faster conditions, such as 1000C, which corresponds to a charge/discharge time of 3.6 seconds by solving a problem in which sodium-ion batteries have been attracting attention as a post-lithium-ion battery, but there have been no positive electrode materials with sufficient charge/discharge capacity under high-speed conditions.SOLUTION: A positive electrode material for a sodium ion battery contains a sodium compound represented by the chemical formula (1): Na3-x+y-zV2(PO4)3-x-y-z-w(SO4)x(SiO4)y(WO4)z(BO3)w(x≥0, y≥0, z≥0, w≥0, 0