Manipulating Interfacial Nanostructure to Achieve High-Performance All-Solid-State Lithium-Ion Batteries

被引：116

作者：

Wang, Changhong ^{[1
]}

Li, Xia ^{[1
]}

Zhao, Yang ^{[1
]}

Banis, Mohammad N. ^{[1
]}

Liang, Jianwen ^{[1
]}

Li, Xiaona ^{[1
]}

Sun, Yipeng ^{[1
]}

Adair, Keegan R. ^{[1
]}

Sun, Qian ^{[1
]}

Liu, Yulong ^{[1
]}

Zhao, Feipeng ^{[1
]}

Deng, Sixu ^{[1
]}

Lin, Xiaoting ^{[1
]}

Li, Ruying ^{[1
]}

Hu, Yongfeng ^{[2
]}

Sham, Tsun-Kong ^{[3
]}

Huang, Huan ^{[4
]}

Zhang, Li ^{[5
]}

Yang, Rong ^{[5
]}

Lu, Shigang ^{[5
]}

Sun, Xueliang ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Mech & Mat Engn, 1151 Richmond St, London, ON N6A 3K7, Canada

[2] Canadian Light Source, 44 Innovat Blvd, Saskatoon, SK S7N 2V3, Canada

[3] Univ Western Ontario, Dept Chem, London, ON N6A 5B9, Canada

[4] Glabat Solid State Battery Inc, 700 Collip Circle, London, ON N6G 4X8, Canada

[5] China Automot Battery Res Inst Co Ltd, 5th Floor,43 Min Bldg North Sanhuan,Middle Rd, Beijing 100088, Peoples R China

来源：

SMALL METHODS | 2019年 / 3卷 / 10期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

all-solid-state lithium-ion batteries; interfacial nanostructure design; sulfide electrolytes; ATOMIC LAYER DEPOSITION; SUPERIONIC CONDUCTORS; ELECTROLYTES; CATHODE; METAL; OXIDE;

D O I：

10.1002/smtd.201900261

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

All-solid-state lithium-ion batteries (ASSLIBs) have gained substantial attention worldwide due to their intrinsic safety and high energy density. However, the large interfacial resistance of ASSLIBs, which originates from the interfacial reactions and inferior electrode-electrolyte contact between electrodes and solid electrolytes, dramatically constrains their electrochemical performance. Here a dual shell interfacial nanostructure is rationally designed to enable high-performance ASSLIBs, in which the inner shell LiNbO3 suppresses the interfacial reactions while the outer shell Li10GeP2S12 enables intimate electrode-electrolyte contact. As a result, the dual shell structured Li10GeP2S12@LiNbO3@LiCoO2 exhibits a high initial specific capacity of 125.8 mAh g(-1) (1.35 mAh cm(-2)) with an initial Coulombic efficiency of 90.4% at 0.1 C and 87.7 mAh g(-1) at 1 C. More importantly, in situ X-ray absorption near edge spectroscopy was performed for the first time to reveal the interfacial reactions between Li10GeP2S12 and LiCoO2. This dual shell nanostructure demonstrates an ideal interfacial configuration for realizing high-performance ASSLIBs.

引用

页数：8

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