一种染料敏化光辅助充电锂离子二次电池  

A kind of dye-sensitized photo-rechargeable Li-ion battery

作　　者：谢潇怡[1] 吴锋[1] 吴伯荣[1] 张存中[1] 

机构地区：[1]北京理工大学化工与环境学院国家高技术绿色材料发展中心,北京100081

出　　处：《电源技术》2014年第6期1016-1017,1080,共3页Chinese Journal of Power Sources

基　　金：国家"973"项目(2009 CB220100)

摘　　要：锂离子二次电池通过电能转化为化学能的方式充电,存在自放电,令电池久置失效;染料敏化太阳电池通过光能转化为电能,即产即用,无法储存。目前已有文献报道的光可充电电池电极的相关材料储存的能量有限,且存在较大自放电现象,导致其储存的化学能无法稳定存在。提供一种低成本、安全可控、便携易操作的光辅助充电锂离子二次电池,该电池能稳定储存光能和电能,几乎不存在自放电现象,在光照下,可降低充电电压0.74 V,节约充电电能29.1%。Li-ion rechargeable batteries transform electrical energy to chemical energy during charging, which remains self-discharging, leading battery invalid; dye-sensitized solar cells （DSSC） have a real-time transformation from luminous energy to electricity transition, but the electric energy can＇t be stored. The reported ＂photo-rechargeable batteries electrode material＂ which store limited energy have serious self-discharging problem, leading the stored chemical energy unstable. A low-cost, safe, easy-to-control, portable and easy operation photo-rechargeable Li-ion battery was provided. The battery can stably store energy, which nearly solves self-discharge problem, decreases 0.74 V charging voltage and saves 29.1% charging energy under illumination.

关 键 词：光辅助充电 锂离子二次电池 自放电 

分 类 号：TM912[电气工程—电力电子与电力传动]