Unravelling the Chemistry and Microstructure Evolution of a Cathodic Interface in Sulfide-Based All-Solid-State Li-Ion Batteries

被引：220

作者：

Li, Xia ^{[1
]}

Ren, Zhouhong ^{[2
,3
]}

Banis, Mohammad Norouzi ^{[1
]}

Deng, Sixu ^{[1
]}

Zhao, Yang ^{[1
]}

Sun, Qian ^{[1
]}

Wang, Changhong ^{[1
]}

Yang, Xiaofei ^{[1
]}

Li, Weihan ^{[1
,5
]}

Liang, Jianwen ^{[1
]}

Li, Xiaona ^{[1
]}

Sun, Yipeng ^{[1
,5
]}

Adair, Keegan ^{[1
]}

Li, Ruying ^{[1
]}

Hu, Yongfeng ^{[4
]}

Sham, Tsun-Kong ^{[5
]}

Huang, Huan ^{[6
]}

Zhang, Li ^{[7
]}

Lu, Shigang ^{[7
]}

Luo, Jun ^{[2
,3
]}

Sun, Xueliang ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B9, Canada

[2] Tianjin Univ Technol, Ctr Electron Microscopy, Tianjin 300384, Peoples R China

[3] Tianjin Univ Technol, Sch Mat Sci & Engn, Inst New Energy Mat & Low Carbon Technol, Tianjin Key Lab Adv Funct Porous Mat, Tianjin 300384, Peoples R China

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

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

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

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

来源：

ACS ENERGY LETTERS | 2019年 / 4卷 / 10期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

ATOMIC LAYER DEPOSITION; THERMAL-STABILITY; LITHIUM; LICOO2; ELECTROLYTE; NI; LI10GEP2S12; CHARGE; CONDUCTIVITY; PERFORMANCE;

D O I：

10.1021/acsenergylett.9b01676

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 (SSLIBs) are promising candidates to meet the requirement of electric vehicles due to the intrinsic safety characteristics and high theoretical energy density. A stable cathodic interface is critical for maximizing the performance of SSLIBs. In this study, operando X-ray absorption near-edge spectroscopy (XANES) combined with transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS) is employed to investigate the interfacial behavior between the Ni-rich layered cathodes and sulfide solid-state electrolyte. The study demonstrates a metastable intermediate state of sulfide electrolyte at high voltage and parasitic reactions with cathodes during the charge/discharge process, which leads to the surface structural reconstruction of Ni-rich cathodes. Constructing a uniform interlayer by atomic layer deposition (ALD) is also employed in this study to further investigate the cathodic interface stability. These results provide new insight into the cathodic interface reaction mechanism and highlight the importance of advanced operando characterizations for SSLIBs.

引用

页码：2480 / 2488

页数：17

共 51 条

[51] A new solid polymer electrolyte incorporating Li10GeP2S12 into a polyethylene oxide matrix for all-solid-state lithium batteries [J].

Zhao, Yanran ;

Wu, Chuan ;

Peng, Gang ;

Chen, Xiaotian ;

Yao, Xiayin ;

Bai, Ying ;

Wu, Feng ;

Chen, Shaojie ;

Xu, Xiaoxiong .

JOURNAL OF POWER SOURCES, 2016, 301 :47-53

← 1 2 3 4 5 6 →