空气电极对锂空气电池放电性能的影响  

Effect of air electrode on discharge performance of lithium-air batteries

作　　者：张明[1,2] 徐强[1] 桑林[2] 丁飞[2] 

机构地区：[1]天津大学化工学院,天津300072 [2]中国电子科技集团公司第十八研究所化学与物理电源重点实验室,天津300384

出　　处：《电源技术》2013年第7期1130-1132,1170,共4页Chinese Journal of Power Sources

基　　金：化学与物理电源重点实验室基金项目(9140C16020-3120C16074)

摘　　要：研究了GNSs(石墨烯)、Super P炭黑、VGCF(气相沉积碳纤维)等三种具有不同形貌的碳基材料对锂空气电池放电容量的影响,并以Super P炭黑为碳基材料,分别考察了碳负载量和粘结剂含量对锂空气电池放电性能的影响。为了进一步研究限制锂空气电池放电性能的因素,采用水热法合成了具有高比表面积的空心刺球状α-MnO2,制备了SuperP/α-MnO2/PVDF复合空气电极,考察了锂空气电池放电过程中的速率控制步骤。The influence of three kinds of carbon with different morphologies such as GNSs,Super P and VGCF on the discharge performance of lithium-air batteries was studied.And then Super P was selected as carbon substrate material and the effect of carbon loading and binder content on the discharge performance of lithium-air batteries was investigated.In order to study the factor that restrict the discharge performance of lithium-air batteries,hollow structured α-MnO2 microspheres were synthesized using a hydrothermal method and Super P/α-MnO2/PVDF composite air electrode was prepared to study the rate controlling step of lithium-air batteries in discharging process.

关 键 词：锂空气电池 空气电极 α-MnO2催化剂 

分 类 号：TM912.9[电气工程—电力电子与电力传动]