Positive electrode material, preparation method and application thereof, and sodium ion battery
The invention provides a positive electrode material, a preparation method and application thereof and a sodium ion battery, and relates to the technical field of batteries. According to the positive electrode material provided by the invention, the layered oxide is wrapped by the sulfate positive e...
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| creator | XU GUANGDUO YANG CHENG LIAO XIAOZHEN ZHANG WEIQING LI JIANPING YANG QINGHENG MA ZIFENG LI ZIXI |
| description | The invention provides a positive electrode material, a preparation method and application thereof and a sodium ion battery, and relates to the technical field of batteries. According to the positive electrode material provided by the invention, the layered oxide is wrapped by the sulfate positive electrode material, so that on one hand, the side reaction of an electrolyte and the layered oxide can be blocked, and the gas production rate is greatly reduced when a battery cell is used under the voltage of 4.3 V or below; on the other hand, the passivation reaction of the layered oxide can be prevented, the interface impedance of the battery cell is effectively reduced, and the increase of the interface impedance is inhibited to a certain extent. The sulfate positive electrode material is wrapped by the benzene sulfonate, so that the dissolution of the sulfate positive electrode can be inhibited, the dispersion effect of the positive electrode material is enhanced, the solid content of homogenate is increased, |
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According to the positive electrode material provided by the invention, the layered oxide is wrapped by the sulfate positive electrode material, so that on one hand, the side reaction of an electrolyte and the layered oxide can be blocked, and the gas production rate is greatly reduced when a battery cell is used under the voltage of 4.3 V or below; on the other hand, the passivation reaction of the layered oxide can be prevented, the interface impedance of the battery cell is effectively reduced, and the increase of the interface impedance is inhibited to a certain extent. 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| subjects | BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | Positive electrode material, preparation method and application thereof, and sodium ion battery |
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