Elucidating the suppression of lithium dendrite growth with a void-reduced anti-perovskite solid-state electrolyte pellet for stable lithium metal anodes

Ye，Yu1,2,3,4; Ye，Xinyan1,2,3,4; Zhu，Haoxian1,2,3,4; Bian，Juncao1,2,3,4; Lin，Haibin1,2,3,4; Zhu，Jinlong1,2,3,4; Zhao，Yusheng1,2,3,4

2023-02-01

10.1016/j.jechem.2022.10.037

Journal of Energy Chemistry   影响因子和分区

2095-4956

Solid-state lithium-metal batteries, with their high theoretical energy density and safety, are highly promising as a next-generation battery contender. Among the alternatives proposed as solid-state electrolyte, lithium-rich anti-perovskite (LiRAP) materials have drawn the most interest because of high theoretical Li conductivity, low cost and easy processing. Although solid-state electrolytes are believed to have the potential to physically inhibit the lithium dendrite growth, lithium-metal batteries still suffer from the lithium dendrite growth and thereafter the short circuiting. The voids in practical LiRAP pellets are considered as the root cause. Herein, we show that reducing the voids can effectively suppress the lithium dendrite growth. The voids in the pellet resulted in an irregular Li flux distribution and a poor interfacial contact with lithium metal anode; and hence the ununiform lithium dendrites. Consequently, the lithium-metal symmetric cell with void-reduced LiOHCl-HT pellet was able to display excellent cycling performance (750 h at 0.4 mA cm) and stability at high current density (0.8 mA cm for 120 h). This study provides not only experimental evidence for the impact of the voids in LiRAP pellets on the lithium dendrite growth, but also a rational pellet fabrication approach to suppress the lithium dendrite growth.

Lithium dendrites Lithium metal anodes Llithium-rich anti-perovskite Solid-state electrolytes Void-reduced pellets

EI ; SCI

英语

第一 ; 通讯

National Natural Science Foundation of China[2019B121205001] ; Shenzhen Key Laboratory of Solid State Batteries[2018B030322001] ; Shenzhen Science and Technology Program[JSGG20191129111001820] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[KQTD20200820113047086] ; null[ZDSYS20180208184346531] ; null[22105095] ; null[51732005] ; null[2020A1515111129] ; null[2021A1515012403]

Chemistry ; Energy & Fuels ; Engineering

Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical

WOS:000964719900001

ELSEVIER

20224613103550

Anodes ; Lithium ; Perovskite ; Solid electrolytes

Minerals:482.2 ; Lithium and Alloys:542.4 ; Alkali Metals:549.1 ; Electron Tubes:714.1 ; Chemical Agents and Basic Industrial Chemicals:803

2-s2.0-85141480109

Scopus

1.Shenzhen Key Laboratory of Solid State Batteries,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Academy for Advanced Interdisciplinary Studies & Department of Physics,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Ye，Yu,Ye，Xinyan,Zhu，Haoxian,et al. Elucidating the suppression of lithium dendrite growth with a void-reduced anti-perovskite solid-state electrolyte pellet for stable lithium metal anodes[J]. Journal of Energy Chemistry,2023,77:62-69.

Ye，Yu.,Ye，Xinyan.,Zhu，Haoxian.,Bian，Juncao.,Lin，Haibin.,...&Zhao，Yusheng.(2023).Elucidating the suppression of lithium dendrite growth with a void-reduced anti-perovskite solid-state electrolyte pellet for stable lithium metal anodes.Journal of Energy Chemistry,77,62-69.

Ye，Yu,et al."Elucidating the suppression of lithium dendrite growth with a void-reduced anti-perovskite solid-state electrolyte pellet for stable lithium metal anodes".Journal of Energy Chemistry 77(2023):62-69.