摘要
用沉淀法制备Cu_(3)V_(1.85)Mo_(0.15)O_(8)的粉体,探索不同条件下Mo掺杂量对其放电性能的影响。利用扫描电子显微镜(SEM)和X射线衍射仪(XRD)分析了其形貌和结构等。实验结果表明:在摩尔质量比0.15的Mo掺杂量、700℃和10 h煅烧时间下的制备粉末粒度为10μm左右,样品表面较为光滑,分散均匀,此时放电性能最佳。以锂硅为负极放电电压可达2.69 V,截止电压2.0V时,比容量可达为250 mAh·g^(-1)。
The powder of Cu_(3)V_(1.85)Mo_(0.15)O_(8) was prepared by precipitation method,and the influence of Mo doping amount on its discharge performance under different conditions was explored.The morphology and structure were analyzed by scanning electron microscope(SEM)and X-ray diffractometer(XRD).The results showed that the particle size of the prepared powder was about 10μm under Mo doping with the molar mass ratio of 0.15,700℃and 10 h calcination time,the surface of the sample was relatively smooth and the dispersion was uniform,and the discharge performance was the best at this time.With lithium silicon as the negative electrode,the discharge voltage reached 2.69 V,and when the cut-off voltage was 2.0 V,the specific capacity reached 250 mAh·g^(-1).
作者
孙铭浩
杜磊
杨少华
李继龙
白银祥
SUN Ming-hao;DU Lei;YANG Shao-hua;LI Ji-long;BAI Yin-xiang(Shenyang Ligong University,Shenyang Liaoning 110168,China;Liaoning Engineering Technology Innovation Center for Special Reserve Power Sources,Shenyang Liaoning 110168,China;Xi'an North Qinghua Electromechanical Co.,Ltd.,North Special Energy Group,Xi'an Shaanxi 710025,China)
出处
《辽宁化工》
CAS
2022年第7期930-933,共4页
Liaoning Chemical Industry
