人工晶体学报2017，Vol.46Issue(1)：74-78,5.
热电池MnO2/石墨烯正极制备及电性能研究
Preperation and Electrical Properties of MnO2/Graphene as Cathode for Thermal Battery
摘要
Abstract
MnO2/graphene composites were synthesized by hydrothermal method. The surface morphology of the material was analyzed by scanning electron microscope ( SEM ) . The crystal phase structure and composition of the materials were characterized by X-ray diffraction ( XRD ) and X-ray photoelectron spectroscopy ( XPS ) . The electrical properties of LiSi/LiCl-KCl/ ( MnO2/G ) cell were tested by the method of constant current discharge. The test results show that adding of GO into the reaction system made the material is composed of nano-ball type and a large number of irregular nanorods structure woven together, and the α-MnO2 nanoclusters structure attach to graphene nanosheets. The disorder wide diffraction peaks of product during 2θ of 22°-27° is graphene. After oxidation of Mn element, the ion state of the Mn element is changed into Mn4+. The LiSi/LiCl-KCl/ ( MnO2/G) cell has two discharge platforms for 2. 58 V and 1. 96 V, respectively, when discharge voltage cut-off to 1. 0 V, the corresponding discharge specific capacity reach 1150. 2 mAh/g.关键词
热电池/MnO2/石墨烯/正极材料/水热法Key words
thermal battery/MnO2/graphene/cathode material/hydrothermal synthesis分类
信息技术与安全科学引用本文复制引用
杨潇薇,杨兆堂,兰伟,杨坤坤,杨少华..热电池MnO2/石墨烯正极制备及电性能研究[J].人工晶体学报,2017,46(1):74-78,5.基金项目
中国工程物理研究院院科学技术发展基金(2014B0302043) （2014B0302043）
