【摘要】 为了加快Li-O₂电池投入实际应用的速度,首先设计相对封闭体系锂氧电池,并通过水合肼还原法将氯化钯和碳纳米管（MWCNTs）还原为Pd/MWCNTs复合材料,然后与商业MnO₂均匀混合得到Pd/MWCNTs-MnO₂阴极催化剂材料.通过对电池在相对封闭体系中测试,结果表明:当放电截止电压为2.0 V时,在100 mA/g的电流密度下首次放电的比容量约为2 250 mAh/g;在1 000 mA/g的电流密度下该电池在相对封闭体系中可以循环44个周期.该研究结果将为Li-O₂电池的商业化应用提供新的研究思路.更多还原

【Abstract】 To speed up the practical application of Li-O₂ batteries, a relatively closed system lithium-oxygen battery is designed, and the palladium chloride and carbon nanotubes（MWCNTs） are reduced to Pd/MWCNTs composite materials by the hydrazine hydration reduction method. Then they were mixed with commercial MnO₂ to obtain the Pd/MWCNTs-MnO₂ cathode catalyst material. By testing the battery in a relatively closed system, the results show that the specific capacity is about 2 250 mAh/g at a current density of 100 mA/g when the discharge cut-off voltage is 2.0 V. At current density of 1000 mA/g, the battery can run 44 cycles in the relatively closed system.更多还原