【作者】 赵燕； 赖琼钰； 郝艳静；

【Author】 Yan Zhao,Qiong-Yu Lai*,Yan-Jing Hao College of chemistry,Sichuan University,Chengdu 610064

【机构】 四川大学化学学院；

【摘要】 <正>本文通过化学调控共沉淀法制备单相六方层状结构前驱物(Ni1/3Co1/3Mn1/3)(OH)2并进一步制备LiNi1/3Co1/3Mn1/3O2。通过XRD,SEM对样品进行表征和形貌观测。以所制样品为正极、活性炭为负极、1MLiOH和1MLi2SO4为水基电解液,分别组装成AC/(Ni1/3Co1/3Mn1/3)(OH)2和更多还原

【Abstract】 In this paper, a single phase and hexagonal layered structure (Ni1/3Co1/3Mn1/3)(OH)2 was prepared by chemical regulation co-precipitation and further prepared LiNi1/3Co1/3Mn1/3O2. The obtained products were characterized by XRD and SEM. The asymmetric supercapacitor AC/(Ni1/3Co 1/3Mn1/3)(OH)2 and AC/LiNi1/3Co1/3Mn1/3O2 were formed in which the two obtained products were used as positive electrode and the activated carbon as negative electrode, and the aqueous electrolytes for the test were 1M LiOH and 1M Li2SO4, respectively. The capacitance properties were examined by cyclic voltammetry, galvanostatic charge-discharge methods and electrochemical impedance spectroscopy. In addition, the pseudocapacitance mechanism was discussed. The results show that in the voltage range of 0-1.0V and 0-1.4V at 100mA/g constant current density, the supercapacitors exhibited specific capacitance value of 36F/g and 46F/g, respectively.更多还原