本文選題：鋰硫電池　切入點(diǎn)：硫正極　出處：《硅酸鹽學(xué)報(bào)》2017年10期 　論文類型：期刊論文

【摘要】：鋰硫電池理論能量密度高(2 600 W·h/kg)、硫原料豐富、成本低,是最有發(fā)展前景的鋰二次電池技術(shù)之一。然而硫以及放電產(chǎn)物硫化鋰電導(dǎo)率低,電化學(xué)反應(yīng)過程中生成的可溶性多硫化物的"穿梭效應(yīng)"以及電池充放電過程中電極的體積效應(yīng)等,影響了鋰硫電池性能的發(fā)揮,阻礙了鋰硫電池實(shí)用化進(jìn)程。近年來,通過電極材料的設(shè)計(jì)、電極表界面的修飾以及電解液體系優(yōu)化,鋰硫電池的性能得到顯著提升。綜述了近年來鋰硫電池中硫正極、隔膜和金屬Li表界面修飾方面的研究進(jìn)展。
[Abstract]:The theoretical energy density of lithium-sulfur battery is 2 600 W 路h / kg 路kg ~ (-1), and sulfur is rich in raw materials and low in cost. It is one of the most promising lithium secondary battery technologies. However, the conductivity of lithium sulfide and its discharge product is low. The "shuttle effect" of soluble polysulfide produced during electrochemical reaction and the volume effect of electrode during the charging and discharging of the battery affect the performance of the lithium-sulfur battery and hinder the practical process of the lithium-sulfur battery. Through the design of electrode materials, the modification of electrode surface interface and the optimization of electrolyte system, the performance of lithium-sulfur battery has been improved significantly. The recent progress in the modification of sulfur positive electrode, diaphragm and metal Li surface in lithium-sulfur battery is reviewed.
【作者單位】： 中國科學(xué)院上海硅酸鹽研究所;
【基金】：國家自然科學(xué)基金(51402330,51472261,51372262)
【分類號】：TM912

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 洪良賀,王建營,孫家躍,胡文祥,倪喜芬;高比容量聚有機(jī)多硫化物電池正極材料的研究進(jìn)展[J];高分子材料科學(xué)與工程;2004年03期

，

本文編號：1641991