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Yi X, Li X, Zhong J, Cui Z, Wang Z, Guo H, Wang J, Yan G. BF 4- Tailoring Solvation Chemistry of Ether-Based Electrolytes to Construct Stable Electrode/Electrolyte Interfaces for Sodium-Ion Full Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11585-11594. [PMID: 38404137 DOI: 10.1021/acsami.3c19126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
The ether-based electrolytes show excellent performance on anodes in sodium-ion batteries (SIBs), but they still show poor compatibility with the cathodes. Here, ether electrolytes with NaBF4 as the main salt or additive were applied in NFM//HC full cells and showed enhanced performance than the electrolyte with NaPF6. Then, BF4- was found to have a stronger interaction with Na+, which could reduce the solvation of Na+ with the solvent, thus inducing the formation of the cathode electrolyte interface (CEI) and solid electrolyte interface (SEI) layers rich in inorganic species. Moreover, the morphology, structure, composition, and solubility of CEI and SEI were explored, concluding that NaBF4 could induce more stable CEI and SEI layers rich in B-containing species and inorganics. This work proposes using NaBF4 as the main salt or additive to improve the performance of ether electrolytes in NFM//HC full cells, which provides a strategy to improve the compatibility of ether-based electrolytes and cathodes.
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Affiliation(s)
- Xiaoli Yi
- School of Metallurgy & Environment, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Xinhai Li
- School of Metallurgy & Environment, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
- Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Jing Zhong
- School of Metallurgy & Environment, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Zhuangzhuang Cui
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhixing Wang
- School of Metallurgy & Environment, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
- Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Huajun Guo
- School of Metallurgy & Environment, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
- Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Jiexi Wang
- School of Metallurgy & Environment, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
- Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Guochun Yan
- School of Metallurgy & Environment, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
- Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
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Kaur R, Kumar H, Kumar B, Singla M, Kumar V, Ghfar AA, Pandey S. Effect of amino acid on the surface adsorption and micellar properties of surface active ILs varying in cationic head groups. Heliyon 2022; 8:e10363. [PMID: 36082336 PMCID: PMC9445298 DOI: 10.1016/j.heliyon.2022.e10363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/19/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022] Open
Abstract
The interfacial along with bulk characteristics of the aqueous solutions of ILs with dissimilar cationic head group viz. 1-dodecyl-3-methylimidazolium bromide ([C12mim][Br]), and N-dodecyl-N-methylmorpholinium bromide ([Mor1,12][Br]) in the absence and the presence of an amino acid L-Methionine as an external additive have been examined by electrical conductivity, UV-Visible, surface tension, and DLS measurements. The CMC values, and the lowest maximum surface excess concentration (Гmax) achieved from all three techniques, and surface tension measurements respectively displayed more surface activity of the [C12mim][Br] than the [Mor1,12][Br]. Also, the morpholinium head group is less hazardous than imidazolium, it can be utilised to design ILs that are greener, mainly in combination with polar, small, and non-toxic side chains and anions.
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