摘要
碳的微观结构是限制锂空气电池空气电极性能的重要因素。选用五种具有不同微观结构参数的碳材料分别制备了空气电极,并测试了相应电池的放电比容量,采用扫描电镜对放电前后空气电极的表观形貌进行了观察,研究探讨了碳的微观结构对于空气电极放电性能的影响。结果表明,碳的孔分布是影响空气电极的重要因素,由具有相对最优孔径分布的碳材料制备的空气电极表现出相对最佳的电性能。
Microstructural parameter of carbon is an important factor that restricts the performance of lithium oxygen batteries. In this paper, five kinds of carbon, which had different microstructural parameter were chosen to prepare the air electrode and the discharge capacity of these electrodes were tested, the monograph of these air electrodes before and after discharge were observed by SEM. The effect of pore distribution of carbon on the performance of air electrode also was discussed. The results show that the pore distribution of carbon has important influences on the performance of air electrode and air electrode made of carbon that has relative optimal pore distribution behave relative best.
出处
《电源技术》
CAS
CSCD
北大核心
2012年第9期1287-1290,共4页
Chinese Journal of Power Sources
关键词
孔分布
比表面积
孔容
多孔碳空气电极
pore distribution
special surface area
pore volume
air electrode
