Lithium dendrite suppression with Li3N-rich protection layer formation on 3D anode via ultra-low temperature nitriding
作者:Hou, WW (Hou, Wangwen) [1] , [2] ; Li, YY (Li, Yuyin) [3] , [6] ; Li, SB (Li, Shaobo) [1] , [2] ; Liu, ZJ (Liu, Zhenjing) [3] , [6] ; Galligan, PR (Galligan, Patrick Ryan) [3] , [6] ; Xu, MY (Xu, Mengyang) [3] , [6] ; Kim, JK (Kim, Jang-Kyo) [4] ; Yuan, B (Yuan, Bin) [1] , [2] ; Hu, RZ (Hu, Renzong) [1] , [2] ; Luo, ZT (Luo, Zhengtang) [1] , [3] , [5] , [6]
(由 Clarivate 提供)
卷441
文献号136067
DOI10.1016/j.cej.2022.136067
出版时间AUG 1 2022
在线发表APR 2022
已索引2022-05-25
文献类型Article
摘要
We demonstrate an effective strategy to prohibit lithium dendrite formation in lithium metal batteries (LMBs) by forming a Li3N-rich protection solid electrolyte interphase (SEI) layer on a three-dimensional (3D) austenitic stainless steel (SS) surface, which maintains the structural stability during Li plating/stripping. The porous SS with 20% Cr is treated by ultra-low temperature ion-nitriding (250 similar to 350 degrees C) for energy-saving, resulting in a lithiophilic nitride layer with a chromium nitride (CrN) phase on the surface, evidenced by the X-ray photoelectron spectroscopy (XPS) and further confirmed by Density functional theory (DFT) calculation. Upon cycling, it spontaneously reacts with metallic Li to form a strong and highly ionic conductive Li3N protection layer, which functionally inhibit continuous side reactions with electrolyte and facilitate the Li-ions transport, consequently leading to a flat Li deposition and ultralong cycling. Additionally, the 3D skeleton of SS reduces the areal current density and provides enough space to relieve volume expansion. The electrochemical results showed that the N-350-SS/Li (porous SS nitrided at 350 degrees C and composited with Li metal) anode in symmetrical cells exhibited extremely low voltage hysteresis of 14 mV and prolonged excellent cycling for over 2500 h in the normal LiPF 6 electrolyte at 1 mA cm(-2). The half cells retained an excellent Coulombic efficiency (CE) of above 98% and the full cells retained 98.0% of its initial capacity without much degradation after 200 cycles at 3C. This enhancement method is simple and low-cost and the SS can be successfully applied in the real high-energy-density LMBs.
关键词
作者关键词Li metal anodeDendrite inhibitionArtificial Li3N protection layer3D porous structure
Keywords PlusTOTAL-ENERGY CALCULATIONSMETAL ANODESPERFORMANCEMATRIXSEI
作者信息
通讯作者地址
Yuan, Bin;
Hu, Renzong;
Luo, Zhengtang
(通讯作者)
South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China
通讯作者地址
Luo, Zhengtang
(通讯作者)
Hong kong Univ Sci & Technol, Hong kong, Peoples R China
地址
1 South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China
2 Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou, Peoples R China
3 Hong Kong Univ Sci & Technol, William Mong Inst Nano Sci & Technol, Dept Chem & Biol Engn, Guangdong Hong Kong Macao Joint Lab Intelligent Mi, Clear Water Bay, Hong Kong 999077, Peoples R China
4 Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China
5 Hong kong Univ Sci & Technol, Hong kong, Peoples R China
电子邮件地址apsheng@scut.edu.cnmsrenzonghu@scut.edu.cnkeztluo@ust.hk
类别/分类
研究方向Engineering
引文主题
2 Chemistry
2.62 Electrochemistry
2.62.616 Lithium-Sulfur Batteries
Sustainable Development Goals
11 Sustainable Cities and Communities
Web of Science 类别Engineering, EnvironmentalEngineering, Chemical