|Toward More Reliable Lithium-Sulfur Batteries: An All-Graphene Cathode Structure|
|Fang, RP; Zhao, SY; Pei, SF; Qian, XT; Hou, PX; Cheng, HM; Liu, C; Li, F; Li, F (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
|摘要||Lithium-sulfur (Li-S) batteries are attracting increasing interest due to their high theoretical specific energy density, low cost, and eco-ftiendliness. However, most reports of the high gravimetric specific capacity and long cyclic life are not practically reliable because of their low areal specific capacity derived from the low areal sulfur loading and low sulfur content. Here, we fabricated a highly porous graphene with high pore volume of 3.51 cm(3) g(-1) as the sulfur host, enabling a high sulfur content of 80 wt %, and based on this, we further proposed an all-graphene structure for the sulfur cathode with highly conductive graphene as the current collector and partially oxygenated graphene as a polysulfide-adsorption layer. This cathode structural design enables a 5 mg cm(-2) sulfur-loaded cathode showing both high initial gravimetric specific capacity (1500 mAh g(-1)) and areal specific capacity (7.5 mAh cm(-2)), together with excellent cycling stability for 400 cycles, indicating great promise for more reliable lithium-sulfur batteries.|
; zhao, shiyong
; pei, songfeng
; qian, xitang
; hou, peng-xiang
; cheng, hui-ming
; liu, chang
; li, feng] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china
High Sulfur Loading
; Chemistry, Physical
; Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
|资助者||Ministry of Science and Technology of China [2014CB932402]; NSFC [51521091, 51525206, 51172239, 51372253, 51272051, U1401243]; "Strategic Priority Research Program" of the Chinese Academy of Sciences [XDA01020304, XDA09010104]; Key Research Program of the Chinese Academy of Sciences [KGZD-EW-T06]; CAS/SAFEA International Partnership Program for Creative Research Teams
|通讯作者||Liu, C; Li, F (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.|
Fang, RP,Zhao, SY,Pei, SF,et al. Toward More Reliable Lithium-Sulfur Batteries: An All-Graphene Cathode Structure[J]. ACS NANO,2016,10(9):8676-8682.
Fang, RP.,Zhao, SY.,Pei, SF.,Qian, XT.,Hou, PX.,...&Li, F .(2016).Toward More Reliable Lithium-Sulfur Batteries: An All-Graphene Cathode Structure.ACS NANO,10(9),8676-8682.
Fang, RP,et al."Toward More Reliable Lithium-Sulfur Batteries: An All-Graphene Cathode Structure".ACS NANO 10.9(2016):8676-8682.