Revisiting the designing criteria of advanced solid electrolyte interphase on lithium metal anode under practical condition
文献类型：期刊论文
| 作者 | Yuan, Shouyi; Weng, Suting; Wang, Fei; Dong, Xiaoli; Wang, Yonggang; Wang, Zhaoxiang; Shen, Cai; Bao, Junwei Lucas; Wang, Xuefeng; Xia, Yongyao |
| 刊名 | NANO ENERGY
 |
| 出版日期 | 2021 |
| 卷号 | 83 |
| 关键词 | BATTERIES PERFORMANCE INTERFACE IONS |
| 英文摘要 | Reducing the ratio of Negative/Positive ratio (N/P ratio) is critical to increase the energy density of Li metal batteries (LMBs). Typically, stable Li deposition with high Coulombic Efficiency (CE) can be easily achieved with ether-based electrolyte, but the low oxidation stability restrains its applications in batteries with high-voltage cathodes. Herein, we performed cryogenic electron microscopy (Cryo-EM), in-depth X-ray Photoelectron spectrum (XPS) and Atomic Force Microscopy (AFM) on the Solid Electrolyte Interphase (SEI) layer formed in carbonate-based electrolyte and ether-based electrolyte to probe the characteristics of good SEI layer and aimed to design good SEI layer in carbonate-based electrolyte by tuning the electrolyte composition. The results suggest that the organic composition in the SEI layer determine the CE of LMBs. Further theoretical calculation suggests the highly reactive nature of carbonate molecules with Li results in the organic-rich SEI layer with low elastic modulus. On the basis of these insights, we propose design methodology for an advanced SEI layer in carbonate electrolyte by tuning the electrolyte composition. The designed SEI exhibits multilayer structure with a dense inorganic inner layer. Consequently, a 4 V full cell was assembled and delivered a high energy density of 760 Wh/kg (calculated based on the weight of cathode and anode) with long cycle life of 200 cycles in carbonate electrolyte. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21968]  |
| 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.Shen, C (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Xia, YY (corresponding author), Fudan Univ, Ctr Chem Energy Mat, Dept Chem, Shanghai Key Lab Catalysis & Innovat Mat, Shanghai 200433, Peoples R China. 3.Wang, XF (corresponding author), Chinese Acad Sci, Inst Phys, Lab Adv Mat & Electron Microscopy, Beijing 100190, Peoples R China. 4.Bao, JL (corresponding author), Boston Coll, Dept Chem, Chestnut Hill, MA 02467 USA. 5.Wang, XF (corresponding author), Tianmu Lake Inst Adv Energy Storage Technol Co Lt, Liyang 213300, Jiangsu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yuan, Shouyi,Weng, Suting,Wang, Fei,et al. Revisiting the designing criteria of advanced solid electrolyte interphase on lithium metal anode under practical condition[J]. NANO ENERGY,2021,83. |
| APA | Yuan, Shouyi.,Weng, Suting.,Wang, Fei.,Dong, Xiaoli.,Wang, Yonggang.,...&Xia, Yongyao.(2021).Revisiting the designing criteria of advanced solid electrolyte interphase on lithium metal anode under practical condition.NANO ENERGY,83. |
| MLA | Yuan, Shouyi,et al."Revisiting the designing criteria of advanced solid electrolyte interphase on lithium metal anode under practical condition".NANO ENERGY 83(2021). |
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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