Preparation of Co-B Alloy with the Assistance of the Sonication and its Electrochemical Properties

摘要：

　　In order to enhance the electrochemical properties of Co-B alloys used as negative electrode materials of alkaline rechargeable batteries, Co-B alloy was successfully prepared by a chemical reduction method with the assistance of the sonication.The phase structure and the surface morphology of the as-prepared Co-B alloys were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and nitrogen physisorption.Moreover, the electrochemical performance was characterized by galvonostatic charge-discharge tests, electrochemical impedance spectroscopy (EIS) and anodic polarization (AP).Co-B alloy prepared with the assistance of the sonication consists of small particles with a uniform distribution.The electrochemical measurements showed that at a discharge current density of 100 mA/g, the initial discharge capacity was 858.1 mAh/g and the discharge capacity was 322.6 mA/g even at the 100th cycle with the capacity retention of 37.6%.

关键词： Co-B alloy Sonication Secondary alkaline battery Electrochemical performance

作者: Wei Zhao Yi-lin Liao Jian-ling Huang Hai-liang Chu Shu-jun Qiu Yong-jin Zou Cui-li Xiang Fen Xu Li-xian Sun

作者单位: Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, PR China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 751-755

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）