本文選題：鋰硫電池　切入點：多硫化物阻隔層　出處：《新型炭材料》2017年02期 　論文類型：期刊論文

【摘要】：鋰硫電池具有遠高于鋰離子電池的理論放電比容量(1 675 mAh/g)和能量密度(2 600 Wh/kg),被認為是很具應用潛力的電池體系,因此被廣泛的研究和關注。然而硫的導電性能差、利用率低以及多硫化物的穿梭效應等問題使得鋰硫電池的循環(huán)性能不穩(wěn)定。為了克服穿梭效應的影響,近年來發(fā)展了多種新型的多硫化物阻隔層設計和制備方法來提高電池循環(huán)穩(wěn)定性,本文分別從碳質材料阻隔層、金屬氧化物阻隔層以及導電聚合物阻隔層三方面綜述了最新的研究進展,并指出免集流體正極材料、阻隔層以及隔膜實現一體化設計將成為鋰硫電池研究的發(fā)展方向。
[Abstract]:Lithium-sulfur batteries have a theoretical specific discharge capacity of 1,675 mg / g and an energy density of 2 600 mg / kg / kg, which is much higher than that of lithium-ion batteries, and is considered to be a potential battery system, so it has been widely studied and paid attention to. However, the conductivity of sulfur is poor. The low utilization ratio and the shuttle effect of polysulfide make the cycle performance of lithium-sulfur battery unstable. In recent years, a variety of new design and preparation methods of polysulfide barrier layer have been developed to improve the cycle stability of the battery. The recent research progress in metal oxide barrier layer and conductive polymer barrier layer is reviewed. It is pointed out that the integrated design of free fluid collector cathode material, barrier layer and diaphragm will become the research direction of lithium sulfur battery.
【作者單位】： 天津大學化工學院;天津化學化工協(xié)同創(chuàng)新中心;
【基金】：國家自然科學基金(U1401243,21406161)~~
【分類號】：TM912

【參考文獻】

相關期刊論文 前1條

1 張強;程新兵;黃佳琦;彭媒，

本文編號：1567191