دورية أكاديمية
Tri-anion solvation structure electrolyte improves the electrochemical performance of Li||LiNi0.8Co0.1Mn0.1O2 batteries.
| العنوان: | Tri-anion solvation structure electrolyte improves the electrochemical performance of Li||LiNi0.8Co0.1Mn0.1O2 batteries. |
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| المؤلفون: | Huang L; Xiamen University, Siming South Road #422, Xiamen, CHINA., Sun M; Xiamen University, Chemistry, Xiamen, CHINA., Xie Y; Xiamen University, Chemistry, Xiamen, CHINA., Huang H; Xiamen University, Chemistry, Xiamen, CHINA., Huang Y; Xiamen University, Chemistry, Xiamen, CHINA., Chen H; Xiamen University, Chemistry, Xiamen, CHINA., Liu S; Xiamen University, Chemistry, Xiamen, CHINA., Dai P; Xiamen University, Chemistry, Xiamen, CHINA., Huang R; Xiamen University, Chemistry, Xiamen, CHINA., Sun S; Xiamen University, Chemistry, Xiamen, CHINA. |
| المصدر: | ChemSusChem [ChemSusChem] 2024 Jul 29, pp. e202401029. Date of Electronic Publication: 2024 Jul 29. |
| Publication Model: | Ahead of Print |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Wiley-VCH Country of Publication: Germany NLM ID: 101319536 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1864-564X (Electronic) Linking ISSN: 18645631 NLM ISO Abbreviation: ChemSusChem Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Weinheim : Wiley-VCH |
| مستخلص: | Li||LiNi0.8Co0.1Mn0.1O2 batteries,which consist of lithium metal anode (LMA) matched with NCM811 cathode, have an energy density more than twice that of lithium ion battery (LIB). However, the unstable electrode/electrolyte interface still hinders its practical application.Ether electrolytes show promise in improving the stability of LMA and NCM811 cathodes.However, a robust and stable electrode/electrolyte interface in Li||NCM811 batteries cannot be easily and efficiently achieved with most of the ether electrolytes reported in present studies. Herein, we present a straightforward and efficient tri-anion synergistic strategy to overcome this bottleneck. The addition of ClO4- and NO3- anions to LiFSI-based ether electrolytes forms a unique solvation structure with tri-anion (FSI-/ClO4-/NO3-) participation (LB511).This structure not only enhances the electrochemical window of the ether electrolytes but also achieves a stable Li||NCM811 batteries interface.The interaction between electrode and electrolyte is suppressed and an inorganic-rich (LiF/Li3N/LiCl) SEI/CEI layer is formed. Meanwhile, the coordination structure in the LB511 electrolyte increases the overpotential for Li deposition, resulting in a uniform and dense layer of deposition.Therefore, the Li||Cu cells using the LB511 electrolyte have an average CE of 99.6%.The Li||NCM811 batteries was cycled stably for 250 cycles with a capacity retention of 81% in the LB511 electrolyte (N/P = 2.5, 0.5 C). (© 2024 Wiley‐VCH GmbH.) |
| فهرسة مساهمة: | Keywords: Lithium metal battery, Electrolytes, Electrode/electrolyte interface, Solvation structure |
| تواريخ الأحداث: | Date Created: 20240730 Latest Revision: 20240730 |
| رمز التحديث: | 20240730 |
| DOI: | 10.1002/cssc.202401029 |
| PMID: | 39075647 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1864-564X |
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| DOI: | 10.1002/cssc.202401029 |