Inducing spherical Li deposition via an indium layer at the interface between solid electrolyte and Li metal

Bolong,Hong1,2; Lei,Gao3; Longbang,Di1,2; Liping,Wang1; Dubin,Huang3; Ruqiang,Zou3; Yusheng,Zhao1,2,4; Songbai,Han1; Jinlong,Zhu1,2

2023-12

10.1016/j.xcrp.2023.101729

Cell Reports Physical Science   影响因子和分区

2666-3864

2666-3864

The interface between solid-state electrolytes (SSEs) and Li metal poses a significant challenge in all-solid-state batteries (ASSBs). Coating a metal layer on SSEs has been recognized as an effective method for optimizing the SSE/Li interface. However, a comprehensive understanding of how metal layers influence Li deposition behavior remains elusive. Here, we demonstrate that the In layer exhibits a superior effect in optimizing the interface compared to other metal layers (Cu, Mg, Zn, Sn, Pt, Au). Long-term cycling of Li symmetric cells based on both organic PEO and inorganic antiperovskite LiOHBr SSEs with an In layer reveals the spherical Li deposition, primarily attributed to the in situ formation of a Li-In alloy at the SSE/Li interface. Moreover, stable cycling performance is demonstrated in LiFePO | Li ASSBs employing SSEs modified with an In layer. This work not only provides insights into the Li deposition behavior induced by the In layer on SSEs but also offers valuable guidance for future interface design in ASSBs.

In layer interface Li deposition Li metal solid-state electrolytes

SCI

英语

第一 ; 通讯

Elsevier BV

2-s2.0-85180559799

人工提交

1.Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
2.Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
3.School of Materials Science and Engineering, Peking University, Beijing 100871, China
4.Eastern Institute for Advanced Study, Ningbo 315201, China

Bolong,Hong,Lei,Gao,Longbang,Di,et al. Inducing spherical Li deposition via an indium layer at the interface between solid electrolyte and Li metal[J]. Cell Reports Physical Science,2023,4(12):101729.

Bolong,Hong.,Lei,Gao.,Longbang,Di.,Liping,Wang.,Dubin,Huang.,...&Jinlong,Zhu.(2023).Inducing spherical Li deposition via an indium layer at the interface between solid electrolyte and Li metal.Cell Reports Physical Science,4(12),101729.

Bolong,Hong,et al."Inducing spherical Li deposition via an indium layer at the interface between solid electrolyte and Li metal".Cell Reports Physical Science 4.12(2023):101729.