Lithium-Ion Desolvation Induced by Nitrate Additives Reveals New Insights into High Performance Lithium Batteries
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Accepted manuscript
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2022-04-02
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ArticleAuthors
Wahyudi, WandiLadelta, Viko

Tsetseris, Leonidas
Alsabban, Merfat
Guo, Xianrong
Yengel, Emre

Faber, Hendrik

Adilbekova, Begimai
Seitkhan, Akmaral

Emwas, Abdul-Hamid
Hedhili, Mohamed N.

Li, Lain-Jong
Tung, Vincent

Hadjichristidis, Nikos

Anthopoulos, Thomas D.

Ming, Jun

KAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
KAUST Catalysis Center (KCC)
Chemical Science Program
NMR
KAUST Solar Center (KSC)
Material Science and Engineering
Core Labs, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
Surface Science
KAUST Catalysis Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
Date
2021-04-02Embargo End Date
2022-04-02Submitted Date
2021-02-15Permanent link to this record
http://hdl.handle.net/10754/668497
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Electrolyte additives have been widely used to address critical issues in current metal (ion) battery technologies. While their functions as solid electrolyte interface forming agents are reasonably well-understood, their interactions in the liquid electrolyte environment remain rather elusive. This lack of knowledge represents a significant bottleneck that hinders the development of improved electrolyte systems. Here, the key role of additives in promoting cation (e.g., Li+) desolvation is unraveled. In particular, nitrate anions (NO3−) are found to incorporate into the solvation shells, change the local environment of cations (e.g., Li+) as well as their coordination in the electrolytes. The combination of these effects leads to effective Li+ desolvation and enhanced battery performance. Remarkably, the inexpensive NaNO3 can successfully substitute the widely used LiNO3 offering superior long-term stability of Li+ (de-)intercalation at the graphite anode and suppressed polysulfide shuttle effect at the sulfur cathode, while enhancing the performance of lithium–sulfur full batteries (initial capacity of 1153 mAh g−1 at 0.25C) with Coulombic efficiency of ≈100% over 300 cycles. This work provides important new insights into the unexplored effects of additives and paves the way to developing improved electrolytes for electrochemical energy storage applications.Citation
Wahyudi, W., Ladelta, V., Tsetseris, L., Alsabban, M. M., Guo, X., Yengel, E., … Ming, J. (2021). Lithium-Ion Desolvation Induced by Nitrate Additives Reveals New Insights into High Performance Lithium Batteries. Advanced Functional Materials, 2101593. doi:10.1002/adfm.202101593Sponsors
W.W. and V.L. contributed equally to this work. This work was supported by the King Abdullah University of Science and Technology (KAUST)and KAUST Solar Centre. L.T. acknowledges computational time at the GRNET HPC facility ARIS through project pr007037-STEM-2. J.M. also thanks the great support from the National Natural Science Foundation of China (21978281).Publisher
WileyJournal
Advanced Functional MaterialsAdditional Links
https://onlinelibrary.wiley.com/doi/10.1002/adfm.202101593ae974a485f413a2113503eed53cd6c53
10.1002/adfm.202101593