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ELECTRODE MATERIALS FROM HYDROUS METAL AND/OR HYDROUS MIXED METAL OXIDES AND METHOD OF PREPARING THE SAME
ELECTRODE MATERIALS FROM HYDROUS METAL AND/OR HYDROUS MIXED METAL OXIDES AND METHOD OF PREPARING THE SAME
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机译:由水金属和/或水混合金属氧化物制成的电极材料及其制备方法
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摘要
An electrode material composed of hydrous metal oxide, such as ruthenium oxide, is annealed up to temperature just below the temperature at which the hydrous metal oxide would crystallize. Therefore, the hydrous metal oxide remains amorphous or non-crystalline. A hydrous metal oxide material treated in this manner provides a charge storage capacity and energy density greater than 747 F/g and 92 joules/gram, respectively, over 1 V range in a sulfuric acid electrolyte. This invention also provides a method of material preparation, wherein a sol-gel process is used to fabricate the hydrous metal oxides and wherein commercially available hydrous ruthenium oxide powders are treated and annealed.
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机译:将由含水金属氧化物(如氧化钌)组成的电极材料退火至刚好低于含水金属氧化物结晶的温度。因此,含水金属氧化物保持非晶态或非晶态。在硫酸电解质中,以这种方式处理的含水金属氧化物材料在1 V范围内的电荷存储容量和能量密度分别大于747 F / g和92焦耳/克。本发明还提供了一种材料制备方法,其中使用溶胶-凝胶法来制造含水金属氧化物,并且其中对可商购的含水钌氧化物粉末进行处理和退火。
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