络合沉淀法制备Al取代α-Ni(OH)_2 的正交实验研究  

Study on the Orthogonal Test of Al-substituted α-Ni(OH)_2 Prepared by Complexation-precipitation Method

作　　者：陈惠[1] 王建明[1] 潘滔[1] 肖慧明[1] 张鉴清[1] 

机构地区：[1]浙江大学化学系,浙江杭州310027

出　　处：《电化学》2002年第1期54-59,共6页Journal of Electrochemistry

基　　金：国家自然科学基金 (5 990 2 0 0 4 )资助项目

摘　　要：通过正交实验研究了影响由络合沉淀法制备的Al取代α_Ni(OH) 2 电化学性能的几个主要因素 .其最佳的合成条件为 :氨水浓度 0 .5mol·L- 1,Al取代含量 15mol% ,pH =11.0 ,在最佳合成条件下制备的样品的最大放电比容量为 30 4mAh·g-Al_substituted α_Ni(OH) 2 was prepared by a complexation_precipitation method and characterized by XRD.The electrochemical performance was tested by the charge_discharge method.The experimental results of orthogonal test showed that the effect order of some key preparative conditions on the electrochemical performance of Al_substituted α_Ni(OH) 2 was the concentration of aqueous ammonia,the content of aluminum and pH value.The optimum prepareative conditions for obtaining the sample with maximum specific discharge capacity(304 mAh·g -1 ) were 0.5 mol·L -1 aqueous ammonia,15 mol% Al content and pH 11.0.

关 键 词：氢氧化镍 Al取代 Α-NI(OH)2 络合沉淀法 正交实验 碱性蓄电池 电化学性能 正极材料 

分 类 号：O646[理学—物理化学]