Understanding the Role of Nano-Aluminum Oxide in All-Solid-State Lithium-Sulfur Batteries

被引：32

作者：

Judez, Xabier ^{[1
,2
]}

Eshetu, Gebrekidan G. ^{[1
,3
]}

Gracia, Ismael ^{[1
]}

Lopez-Aranguren, Pedro ^{[1
]}

Gonzalez-Marcos, Jose A. ^{[2
]}

Armand, Michel ^{[1
]}

Rodriguez-Martinez, Lide M. ^{[1
]}

Zhang, Heng ^{[1
]}

Li, Chunmei ^{[1
]}

机构：

[1] CIC Energigune, Parque Tecnol Alava Albert Einstein 48, Minano 01510, Alava, Spain

[2] Univ Basque Country UPV EHU, Fac Sci & Technol, Dept Chem Engn, PP Box 644, Bilbao 48080, Spain

[3] Rhein Westfal TH Aachen, Inst Power Elect & Elect Drives ISEA, Jagerstr 17-19, D-52066 Aachen, Germany

来源：

CHEMELECTROCHEM | 2019年 / 6卷 / 02期

关键词：

all-solid-state batteries; aluminum oxide; composite electrolytes; lithium polysulfides; lithium-sulfur batteries; POLYMER ELECTROLYTES; COMPOSITES; CATHODE; IMPACT;

D O I：

10.1002/celc.201801390

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Aluminum oxide (Al2O3) is a well-known electrolyte filler for stabilizing the Li-metal (Li-0) anode in all-solid-state Li-0-based batteries. However, its strong interactions with lithium polysulfides (PS) hinder the direct application of Al2O3-added electrolytes in all-solid-state lithium-sulfur batteries (ASSLSBs). Herein, the role of Al2O3 in ASSLSBs both as electrolyte filler and cathode additive is studied. The combination of Al2O3-added electrolyte and Al2O3-added S-8 cathode with optimum cell configuration could deliver an unprecedented discharge capacity of 0.85 mAh cm(-2) (C/10, 30 cycles) for polymer-based ASSLSBs. These results suggest that the rational incorporation of Al2O3 can lead simultaneously to PS anchoring and Li-0 anode stabilizing benefits from the ceramic filler, thus improving the electrochemical performance of ASSLSBs.

引用

页码：326 / 330

页数：5

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