Uniform Lithium Deposition Induced by Polyacrylonitrile Submicron Fiber Array for Stable Lithium Metal Anode

被引：60

作者：

Lang, Jialiang ^{[1
]}

Song, Jianan ^{[1
]}

Qi, Longhao ^{[1
]}

Luo, Yuzi ^{[2
]}

Luo, Xinyi ^{[1
]}

We, Hui ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 12期

关键词：

lithium metal battery; polyacrylonitrile; fiber array; draw-spinning; stable cycling performance; SOLID-ELECTROLYTE INTERPHASE; IONIC LIQUID; BATTERIES; PERSPECTIVE; GROWTH; LAYER; STATE;

D O I：

10.1021/acsami.7b00181

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The lithium dendrite growth and low Coulombic efficiency (CE) during lithium plating/striping cycles are the main obstacles for practical applications of lithium metal anode. Herein, we demonstrate that polyacrylonitrile (PAN) submicron fiber array could guide the lithium ions to uniformly disperse and deposit onto current collector. The PAN submicron fiber array nearly does not increase the volume of electrode with ultralow mass. By this simple design, we achieved stable cycling of lithium metal anode with an average CE of similar to 97.4% for 250 cycles at a current density of 1 mA cm(-2) with total Li capacity of 1 mAh cm(-2).

引用

页码：10360 / 10365

页数：6

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