NiAl-LDHs电极材料的水热合成及其超级电容器电化学性能
Journal of Shanghai Second Polytechnic University（2023）
Abstract
超级电容器具有大充放电速率、良好的循环稳定性及高功率密度等优点,是一种新兴的绿色环保储能器件.采用简单的水热合成法制备镍铝层状双金属氢氧化物(NiAl-LDHs)超级电容器电极材料,探究不同镍铝比对其形貌组成及电化学性能的影响.所制备的Ni1Al1-LDHs电极材料在电流密度为1 A/g时表现出378 F/g的高比电容.以活性炭(AC)为负极组成的Ni1Al1-LDHs//AC非对称超级电容器在能量密度为27.5 Wh/kg时,具有1.4 kW/kg的高功率密度,表现出优异的电化学性能.
MoreKey words
nickel aluminum layered double hydroxide,supercapacitor,hydrothermal synthesis,electrochemical performance
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