All solid thick oxide cathodes based on low temperature sintering for high energy solid batteries

Han, Xiang1,2,3; Wang, Shanyu1; Xu, Yaobin; Zhong, Guiming5; Zhou, Yang4,6; Liu, Bo7; Jiang, Xiaoyu1; Wang, Xiang4; Li, Yun1; Zhang, Ziqi3; Chen, Songyan3; Wang, Chongmin4; Yang, Yong5; Zhang, Wenqing8; Wang, Junlan6; Liu, Jun1,4; Yang, Jihui1

2021-07-01

10.1039/d1ee01494c

Energy & Environmental Science   影响因子和分区

1754-5692

1754-5706

Solid-state batteries (SSBs) could significantly improve the safety and energy density over conventional liquid cells. One key enabling technology is the use of solid electrolytes. NASICON-type Li1.3Al0.3Ti1.7(PO4)(3) (LATP) is a very attractive solid-state electrolyte for the cathode side due to its high oxidation potential and high ionic conductivity. The usage, however, is limited by its large interfacial resistance against most of the cathode materials as well as the thermodynamic instability during high temperature sintering needed to achieve high mass density. Here we construct thin, percolative, and mixed conductive interphases through in situ low-melting-point liquid sintering. These mixed conductive interphases drastically improve the kinetics, leading to high-loading solid LATP/LiCoO2 cathodes achieving capacity loading of up to similar to 6 mA h cm(-2). The technique is also applicable to Ni-rich cathode materials, achieving up to similar to 10 mAh cm(-2), which can lead to more than 400 W h kg(-1) cells in SSBs. Our composite cathodes show a ten-times and three-times area capacity improvement over the state-of-the-art cathodes using oxide and sulfide SSEs, respectively.

SCI ; EI

英语

其他

National Natural Science Foundation of China[51902165] ; Natural Science Foundation of Jiangsu Province[BK20200800] ; General Armaments Department of China[6140721040411] ; China Scholarship Council[201706310085]

Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology

Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences

WOS:000683763900001

ROYAL SOC CHEMISTRY

20213910961759

Aluminum compounds ; Lithium compounds ; Sintering ; Sodium compounds ; Solid electrolytes ; Solid state devices ; Solid-State Batteries ; Sulfur compounds ; Temperature ; Titanium compounds

Thermodynamics:641.1 ; Secondary Batteries:702.1.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Chemical Agents and Basic Industrial Chemicals:803

Web of Science

1.Univ Washington, Mat Sci & Engn Dept, Seattle, WA 98195 USA
2.Nanjing Forestry Univ, Coll Mat Sci & Engn, Nanjing 210037, Peoples R China
3.Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China
4.Pacific Northwest Natl Lab, Richland, WA 99252 USA
5.Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
6.Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
7.Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China
8.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Han, Xiang,Wang, Shanyu,Xu, Yaobin,et al. All solid thick oxide cathodes based on low temperature sintering for high energy solid batteries[J]. Energy & Environmental Science,2021,14:5044-5056.

Han, Xiang.,Wang, Shanyu.,Xu, Yaobin.,Zhong, Guiming.,Zhou, Yang.,...&Yang, Jihui.(2021).All solid thick oxide cathodes based on low temperature sintering for high energy solid batteries.Energy & Environmental Science,14,5044-5056.

Han, Xiang,et al."All solid thick oxide cathodes based on low temperature sintering for high energy solid batteries".Energy & Environmental Science 14(2021):5044-5056.