功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2015年
z1期
105-109,114
,共6页
空气电极%多孔碳%碳纳米管%锂空气电池%放电过程
空氣電極%多孔碳%碳納米管%鋰空氣電池%放電過程
공기전겁%다공탄%탄납미관%리공기전지%방전과정
air electrode%porous carbon%carbon nanotubes(CNTs)%Li-air batteries%discharge process
锂空气电池的放电过程和放电容量与空气电极的组成密切相关。由于碳材料是空气电极的主要组成部分,故其本征属性会影响空气电池的性能。对几种碳材料的研究,发现电池在放电过程中放电产物附生于碳材料表面,且大尺寸中孔(>30 nm)和大孔是放电反应的原发位置,同时,放电反应产物也存储在这些位置上。通过理想电极(CNTs)的对比实验也证实了这点。
鋰空氣電池的放電過程和放電容量與空氣電極的組成密切相關。由于碳材料是空氣電極的主要組成部分,故其本徵屬性會影響空氣電池的性能。對幾種碳材料的研究,髮現電池在放電過程中放電產物附生于碳材料錶麵,且大呎吋中孔(>30 nm)和大孔是放電反應的原髮位置,同時,放電反應產物也存儲在這些位置上。通過理想電極(CNTs)的對比實驗也證實瞭這點。
리공기전지적방전과정화방전용량여공기전겁적조성밀절상관。유우탄재료시공기전겁적주요조성부분,고기본정속성회영향공기전지적성능。대궤충탄재료적연구,발현전지재방전과정중방전산물부생우탄재료표면,차대척촌중공(>30 nm)화대공시방전반응적원발위치,동시,방전반응산물야존저재저사위치상。통과이상전겁(CNTs)적대비실험야증실료저점。
In Li/air batteries,the discharge process and capacity are closely related to the composition of air elec-trode.Carbon was the main component of air electrode and therefore its intrinsic properties will affect the per-formance of batteries.It has been found that the discharge product was epiphytic on carbon surface during dis-charge,and the large mesoporous(>30 nm)or macropores in the carbon were the response site of discharge re-action where discharge product was stored.These have also been confirmed by comparison with ideal electrode composed of carbon nanotubes (CNTs).