Positive electrode material, positive plate comprising positive electrode material and sodium ion battery
The invention belongs to the technical field of batteries, and particularly relates to a positive electrode material, a positive plate comprising the positive electrode material and a sodium ion battery. The positive electrode material is a sodium transition metal oxide containing Co element, K elem...
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| creator | YE KONGQIANG HUANG HUAWEN LI SULI LUO JING ZENG JIAJIANG |
| description | The invention belongs to the technical field of batteries, and particularly relates to a positive electrode material, a positive plate comprising the positive electrode material and a sodium ion battery. The positive electrode material is a sodium transition metal oxide containing Co element, K element and optionally containing M element, and the M element is selected from at least one of Al, Mg, Ti, Mn, Te, Ni, W, Nb, Zr, La or Y element; the molar weight of the K element in the unit mole of the positive electrode material is nK, the molar weight of the Co element in the unit mole of the positive electrode material is nCo, the molar weight of the M element in the unit mole of the positive electrode material is nM, and the ratio of nK to nCo + nM is 0 lt; nK/nCo + nMlt; and 0.005% of the total weight. According to the positive electrode material provided by the invention, by controlling the doping amount of the K element, on one hand, the compaction density of the positive electrode material can be improved, |
| format | Patent |
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The positive electrode material is a sodium transition metal oxide containing Co element, K element and optionally containing M element, and the M element is selected from at least one of Al, Mg, Ti, Mn, Te, Ni, W, Nb, Zr, La or Y element; the molar weight of the K element in the unit mole of the positive electrode material is nK, the molar weight of the Co element in the unit mole of the positive electrode material is nCo, the molar weight of the M element in the unit mole of the positive electrode material is nM, and the ratio of nK to nCo + nM is 0 lt; nK/nCo + nMlt; and 0.005% of the total weight. 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The positive electrode material is a sodium transition metal oxide containing Co element, K element and optionally containing M element, and the M element is selected from at least one of Al, Mg, Ti, Mn, Te, Ni, W, Nb, Zr, La or Y element; the molar weight of the K element in the unit mole of the positive electrode material is nK, the molar weight of the Co element in the unit mole of the positive electrode material is nCo, the molar weight of the M element in the unit mole of the positive electrode material is nM, and the ratio of nK to nCo + nM is 0 lt; nK/nCo + nMlt; and 0.005% of the total weight. According to the positive electrode material provided by the invention, by controlling the doping amount of the K element, on one hand, the compaction density of the positive electrode material can be improved,</abstract><oa>free_for_read</oa></addata></record> |
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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, positive plate comprising positive electrode material and sodium ion battery |
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