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。
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).
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