In-situ Generated Ultra-High Dispersion Sulfur 3D-Graphene Foam for All-Solid-State Lithium Sulfur Batteries with High Cell-Level Energy Density

被引：9

作者：

Zhu, Ruichen ^{[1
]}

Liu, Fangchao ^{[1
]}

Li, Wenyan ^{[1
]}

Fu, Zhengwen ^{[2
]}

机构：

[1] Shanghai Univ Engn Sci, Sch Mat Engn, 333 Long Teng Rd, Shanghai 201620, Peoples R China

[2] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China

来源：

CHEMISTRYSELECT | 2020年 / 5卷 / 31期

基金：

中国国家自然科学基金;

关键词：

all-solid-state Li-S battery; electrochemistry; graphene foam; superior energy density; ultra-high dispersion; ELECTROCHEMICAL PERFORMANCE; ELECTROLYTE; LAYER; CATHODES; IODINE; CARBON; BINDER;

D O I：

10.1002/slct.202002150

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, we prepared a free-standing ultra-high dispersion sulfur three-dimensional graphene (S-3DG) foam by a simple in-situ synthesis method. The HRTEM and SAED test of the discharged and charged products showed reversible conversion of Li2S and S during cycling. All-solid-state Li-S batteries with 55% sulfur content can reach initial discharge capacity of 1680 mAh g(-1)at 1/16 C and 410 mAh g(-1)at 4 C. And the capacity was about 450 mAh g(-1)after 20 times cycling tested at 1/8 C. Moreover, Li-S batteries with 80% sulfur loading (8 mg/cm(2)) exhibited a superior cell-level energy density of 588.8 Wh kg(-1).

引用

页码：9701 / 9708

页数：8

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