Preparation method and application of sodium-nickel-manganese-oxygen electrode material

• Main Authors: LI QIJIE, ZHANG KEYUAN, MA SHIYU, YANG JINGANG, LIU HUIMIN, XIONG FENG, WANG XI
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• 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

The invention relates to a preparation method and application of a sodium-nickel-manganese-oxygen electrode material, belongs to the technical field of sodium-ion battery materials, and synthesizes a novel Fe-doped sodium-iron-nickel-manganese-oxygen electrode material by using a PEG-assisted coprecipitation method. The preparation method is simple to operate, short in time period and low in cost, and the Na0. 6Ni0. 25Mn0. 65Fe0. 1O2 electrode material is used as the positive electrode material of the sodium ion battery half-cell, so that the sodium ion battery half-cell has excellent specific capacity, rate and long cycle performance, and has a wide application prospect. 本发明涉及一种钠镍锰氧电极材料的其制备方法和应用，属于钠离子电池材料技术领域，利用PEG-辅助共沉淀法合成了新型的Fe掺杂的钠铁镍锰氧电极材料。该制备方法操作简单、时间周期短、价格低廉：将Na0.6Ni0.25Mn0.65Fe0.1O2电极材料作为钠离子电池半电池的正极材料，具有优异的比容量、倍率和长循环性能，具有广阔的应用前景。