Synergistic dual-interface engineering with self-organizing Li-ion/electric fields for enhanced lithium metal anode stability

Li, Zhiqiang1; Liao, Kemeng2; Yin, Lihong2; Li, Zongrun2; Li, Yingzhi2; Wang, Hongzhi2; Qin, Ning2; Gu, Shuai2; Chen, Jingjing2; Wan, Weihua3; Lu, Zhouguang2

2024-09-01

10.1039/d4ta03128h

JOURNAL OF MATERIALS CHEMISTRY A   影响因子和分区

2050-7488

2050-7496

["Lithium metal is promising anode material for next-generation ultra-high energy batteries due to its unparalleled theoretical capacity. Nonetheless, its practical application is largely hindered by interfacial instability. Herein, we propose an interfacial engineering strategy employing a sandwich-structured interface comprising a nano-silver (Ag) inner layer and a lithium chitosan sulfonate (LCS) outer layer. The lithophilic nano-silver layer, with its uniformly distributed three-dimensional structure, ensures a consistent interfacial electric field and robustly anchors the LCS, mitigating delamination or decoupling from the Li metal surface during Li plating/stripping. Simultaneously, the LCS coating, characterized by its polysaccharide glycosidic structure, not only delivers exceptional elasticity and mechanical strength but also serves as a robust artificial solid-electrolyte interphase (SEI) layer, preserving the interface's structural integrity. Additionally, the LCS's sulfonic acid groups (-SO3Li) further promote uniform Li-ion flux and maintain high Li+ ionic conductivity. These synergistic effects significantly improve the specific discharge capacity and cycling stability of a C-AgLi & Vert;LiCoO2 full cell, achieving a capacity retention of 83.8% after 350 cycles. These findings elucidate a pathway towards the practical utilization of Li metal anodes by enhancing Li-ion flux, electric field uniformity, and interface adhesion, thus effectively inhibiting Li dendrites.","A self-organizing, dual-modified interface for lithium metal anodes that significantly improves uniform lithium deposition and enhances electroplating/stripping performance."]

SCI

英语

通讯

National Natural Science Foundation of China[JCYJ 20220818100418040] ; Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[Y01251846] ; Southern University of Science and Technology Teaching Enhancement and Innovation Project[2024MS103] ; Fundamental Research Funds for the Central Universities[U22A20439]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:001309534900001

ROYAL SOC CHEMISTRY

Web of Science

1.North China Elect Power Univ, Dept Elect Power Engn, Hebei Key Lab Green & Efficient New Elect Mat & Eq, Baoding 071003, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Gui Zhou Mei Ling Power Sources Co Ltd, State Key Lab Adv Chem Power Source, Zunyi 563003, Guizhou, Peoples R China

Li, Zhiqiang,Liao, Kemeng,Yin, Lihong,et al. Synergistic dual-interface engineering with self-organizing Li-ion/electric fields for enhanced lithium metal anode stability[J]. JOURNAL OF MATERIALS CHEMISTRY A,2024.

Li, Zhiqiang.,Liao, Kemeng.,Yin, Lihong.,Li, Zongrun.,Li, Yingzhi.,...&Lu, Zhouguang.(2024).Synergistic dual-interface engineering with self-organizing Li-ion/electric fields for enhanced lithium metal anode stability.JOURNAL OF MATERIALS CHEMISTRY A.

Li, Zhiqiang,et al."Synergistic dual-interface engineering with self-organizing Li-ion/electric fields for enhanced lithium metal anode stability".JOURNAL OF MATERIALS CHEMISTRY A (2024).