掺杂Co对β-NiOOH及LiNiO_2正极材料的改进  

Improvement of β-NiOOH and LiNiO_2 cathode materials doped with Co

作　　者：王新[1] 

机构地区：[1]厦门大学电子科学系,福建厦门361005

出　　处：《电源技术》2016年第1期28-31,共4页Chinese Journal of Power Sources

摘　　要：采用掺杂Co的b-Ni(OH)2为前驱体,以K2S2O8为氧化剂,制备出b-羟基氧化镍钴;再用b-羟基氧化镍钴为前驱体,和Li OH·H2O在空气中进行固相烧结得到Li Ni0.9Co0.1O2。用X射线衍射光谱法(XRD)、扫描电子显微镜法(SEM)、循环伏安法(CV)和充放电测试分别对b-羟基氧化镍钴和Li Ni0.9Co0.1O2两种正极材料进行了结构表征和电化学性能测试。Firstly, the Co-dopedβ-NiOOH was synthesized by using Co-dopedβ-Ni（OH）2 as precursor, K2S2O8 as oxidizer. Thenβ-NiogCoo.lOOH was used as precursor, and LiOH-H2O solid-phase was sintered in the air to get LiNi0.9Co0.1O2. The crystal structure and electrochemical performance of the two cathode materials were analyzed by XRD, SEM, CV and discharge testing.

关 键 词：CO掺杂 b-Ni0.9Co0.1OOH LiNi0.9Co0.1O2 结构 电化学性能 

分 类 号：TM912[电气工程—电力电子与电力传动]