Cocktail therapy towards high temperature/high voltage lithium metal battery via solvation sheath structure tuning
文献类型：期刊论文
| 作者 | Zheng, Tianle; Xiong, Jianwei; Shi, Xiaotang; Zhu, Bingying; Cheng, Ya-Jun; Zhao, Hongbin; Xia, Yonggao |
| 刊名 | ENERGY STORAGE MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 38页码:599-608 |
| 关键词 | SUPERCONCENTRATED ELECTROLYTES LINO3 |
| 英文摘要 | Lithium metal battery has attracted tremendous attention because of its superior energy density. However, it suffers poor cyclic stability and serious safety risk due to severe side reactions between lithium and electrolyte solution, and excessive growth of lithium dendrite, which can be even worse at high temperatures and high voltage. To tackle this issue, solvation structure manipulation is carried out in the ADFN electrolyte solution, containing co-solvents of dimethoxy ethane (DME), Fluoroethylene carbonate (FEC), adiponitrile (ADN), and Lithium bis(fluorosulfonyl)imide (LiFSI, 1.0 M), and lithium nitrate (LiNO3 , 0.1 M). A large-sized solvation sheath with a more inorganic component is constructed as indicated by both the molecular dynamic simulation and Raman characterization. The unique solvation structure generates a stable SEI layer rich in inorganic species, which suppresses continuous consumption of electrolyte solvent and inhibits lithium dendrite growth as confirmed by both SEM and XPS analysis. The electrochemical performance is boosted with respect to the Li parallel to Cu, Li parallel to Li, Li parallel to LFP and Li parallel to NCM523 cells via the solvation structure tuning in the ADFN electrolyte solution. Improved cyclic stability, reversible capacities, and rate performance are demonstrated by both the Li parallel to LFP and Li parallel to NCM523 cells, where the Li parallel to LFP cells exhibit outstanding performance at both room temperature and high temperatures of 80 degrees C and 90 degrees C. This work provides fundamental insights about the ADN solvation and innovative strategy to manipulate the solvation of lithium ions, which delivers a simple way to further optimize Li-ion electrolyte for wide-temperature and high voltage applications. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21880]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Xia, YG (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China. 2.Cheng, YJ 3.Xia, YG (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zheng, Tianle,Xiong, Jianwei,Shi, Xiaotang,et al. Cocktail therapy towards high temperature/high voltage lithium metal battery via solvation sheath structure tuning[J]. ENERGY STORAGE MATERIALS,2021,38:599-608. |
| APA | Zheng, Tianle.,Xiong, Jianwei.,Shi, Xiaotang.,Zhu, Bingying.,Cheng, Ya-Jun.,...&Xia, Yonggao.(2021).Cocktail therapy towards high temperature/high voltage lithium metal battery via solvation sheath structure tuning.ENERGY STORAGE MATERIALS,38,599-608. |
| MLA | Zheng, Tianle,et al."Cocktail therapy towards high temperature/high voltage lithium metal battery via solvation sheath structure tuning".ENERGY STORAGE MATERIALS 38(2021):599-608. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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