| 锂二次电池新型正极材料BiO0.1F2.8的制备及性能研究 |
| |
| 引用本文： | 王欣,王先友,曹俊琪,伍文,李娜,魏建良,杨顺毅. 锂二次电池新型正极材料BiO0.1F2.8的制备及性能研究[J]. 功能材料, 2009, 40(5) |
| |
| 作者姓名： | 王欣 王先友 曹俊琪 伍文 李娜 魏建良 杨顺毅 |
| |
| 作者单位： | 湘潭大学,化学学院,湖南,湘潭,411105;湘潭大学,化学学院,湖南,湘潭,411105;湘潭大学,化学学院,湖南,湘潭,411105;湘潭大学,化学学院,湖南,湘潭,411105;湘潭大学,化学学院,湖南,湘潭,411105;湘潭大学,化学学院,湖南,湘潭,411105;湘潭大学,化学学院,湖南,湘潭,411105 |
| |
| 基金项目： | 国家自然科学基金资助项目(20673092) |
| |
| 摘 要： | 通过液相反应合成了BiO0.1F2.8且在合成过程中加入活性炭,制备了BiO0.1F2.8/C.用X射线衍射(XRD),扫描电镜(SEM),充放电测试等对两种材料的结构和电化学性能进行了研究.XRD和SEM测试结果表明,合成的BiO0.1F2.8和BiO0.1F2.8/C均为简单六方晶型,属P63/mmc空间群,并且两种材料的颗粒分布均匀、结晶规则,呈棱柱形结晶,加入活性炭能使BiO0.1F2.8颗粒尺寸减小.将两种材料作为正极,与金属锂组装成锂二次电池,在1～4.5V电压范围内,以不同放电倍率充放电测试,发现BiO0.1F2.8/C电化学性能有明显的改善,在0.05C放电时其质量比能量高达613Wh/kg.
|
| 关 键 词： | 锂电正极材料 BiO0.1F2.8 BiO0.1F2.8/C 电化学性能测试 |
The synthesis and electrochemical performance of BiO_(0.1)F_(2.8) as a new positive electrode for rechargeable lithium battery |
| |
| WANG Xin , WANG Xian-you , CAO Jun-qi , WU Wen , LI Na , WEI Jian-liang , YANG Shun-yi. The synthesis and electrochemical performance of BiO_(0.1)F_(2.8) as a new positive electrode for rechargeable lithium battery[J]. Journal of Functional Materials, 2009, 40(5) |
| |
| Authors: | WANG Xin WANG Xian-you CAO Jun-qi WU Wen LI Na WEI Jian-liang YANG Shun-yi |
| |
| Affiliation: | School of Chemistry;Xiangtan University;Xiangtan 411105;China |
| |
| Abstract: | The BiO0.1F2.8 was synthesized via a liquid phase precipitation method,and the BiO0.1F2.8/C composite was prepared by adding active carbon(AC) during the synthesis process of BiO0.1F2.8.The structure and electrochemical performance of these materials were characterized by X-ray diffractometer(XRD),scanning electron microscope(SEM) and the constant current charge/discharge method.The results showed that the BiO0.1F2.8 and BiO0.1F2.8/C belonged to primitive hexagonal P63/mmc space group.The gains of the BiO0.... |
| |
| Keywords: | positive electrodes for lithium battery BiO0.1F2.8 BiO0.1F2.8/C test of electrochemical performance |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
