1
|
Vasudevan S, Dwivedi S, Morekonda Ganesh Babu KB, Balaya P. Investigation of Solid Polymer Electrolytes for NASICON-Type Solid-State Symmetric Sodium-Ion Battery. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39268633 DOI: 10.1021/acsami.4c10189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/17/2024]
Abstract
The inevitable shift toward renewable energy and electrification necessitates earth-abundant sodium reserves for next-generation Na-based energy storage technologies. By coupling the benefits of solid electrolytes over traditional nonaqueous electrolytes due to their safety hazards, solid-state sodium-ion batteries hold huge prospects in the future. This work presents a comprehensively developed solid-state sodium-ion symmetric full cell operating at room temperature enabled through a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymer electrolyte and modified NASICON-structured positive and negative electrodes. Among the investigated polymer electrolytes, PVDF-HFP-NaTFSI was found to outperform other counterparts by achieving a higher ionic conductivity and delivered an appreciable electrochemical stability window. By further delving into the properties of PVDF-HFP-NaTFSI, it was found to possess the least crystallinity, minimal porous structure, lowest melting point, and fusion enthalpy, indicating better ion transport than other investigated polymer electrolytes. The as-assembled solid-state battery revealed a storage capacity of 74 mAh g-1 at 0.1 C with a specific energy density of 130 Wh kgcathode_active_material-1 and demonstrated an impressive capacity retention of 84% of the initial capacity after 200 cycles. The structure and morphology retention of the cycled electrode and electrolyte through postmortem analysis bolster the electrochemo-mechanical stability of the developed solid cell. The findings reported here on polymer electrolytes persuade expedient solutions for developing ambient temperature solid-state sodium-ion batteries with promising electrochemical performance for commercialization in the near future.
Collapse
Affiliation(s)
- Sudharshan Vasudevan
- Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, 117575 Singapore
| | - Sushmita Dwivedi
- Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, 117575 Singapore
| | | | - Palani Balaya
- Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, 117575 Singapore
| |
Collapse
|
2
|
Xie Y, Wang J, Savitzky BH, Chen Z, Wang Y, Betzler S, Bustillo K, Persson K, Cui Y, Wang LW, Ophus C, Ercius P, Zheng H. Spatially resolved structural order in low-temperature liquid electrolyte. SCIENCE ADVANCES 2023; 9:eadc9721. [PMID: 36638171 DOI: 10.1126/sciadv.adc9721] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Determining the degree and the spatial extent of structural order in liquids is a grand challenge. Here, we are able to resolve the structural order in a model organic electrolyte of 1 M lithium hexafluorophosphate (LiPF6) dissolved in 1:1 (v/v) ethylene carbonate:diethylcarbonate by developing an integrated method of liquid-phase transmission electron microscopy (TEM), cryo-TEM operated at -30°C, four-dimensional scanning TEM, and data analysis based on deep learning. This study reveals the presence of short-range order (SRO) in the high-salt concentration domains of the liquid electrolyte from liquid phase separation at the low temperature. Molecular dynamics simulations suggest the SRO originates from the Li+-(PF6-)n (n > 2) local structural order induced by high LiPF6 salt concentration.
Collapse
Affiliation(s)
- Yujun Xie
- Department of Nuclear Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jingyang Wang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Materials Science and Engineering, Stanford University, Palo Alto, CA 94305, USA
| | - Benjamin H Savitzky
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Zheng Chen
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
| | - Yu Wang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Sophia Betzler
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Karen Bustillo
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Kristin Persson
- Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Yi Cui
- Department of Materials Science and Engineering, Stanford University, Palo Alto, CA 94305, USA
| | - Lin-Wang Wang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Colin Ophus
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Peter Ercius
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Haimei Zheng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| |
Collapse
|
3
|
Kim W, Jang D, Kim H, Kim Y, Kim HJ. Real-time analysis of Ni-rich layered oxide-electrolyte reactivity by observing leakage currents. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Djurdjić Mijin S, Abeykoon AMM, Šolajić A, Milosavljević A, Pešić J, Liu Y, Petrovic C, Popović ZV, Lazarević N. Short-Range Order in VI 3. Inorg Chem 2020; 59:16265-16271. [PMID: 33092339 DOI: 10.1021/acs.inorgchem.0c02060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a detailed investigation of the crystal structure of VI3, a two-dimensional van der Waals material of interest for studies of low-dimensional magnetism. As opposed to the average crystal structure that features R3̅ symmetry of the unit cell, our Raman scattering and X-ray atomic pair distribution function analysis supported by density functional theory calculations point to the coexistence of short-range ordered P3̅1c and long-range ordered R3̅ phases. The highest-intensity peak, A1g3, exhibits a moderate asymmetry that might be traced back to the spin-phonon interactions, as in the case of CrI3.
Collapse
Affiliation(s)
- Sanja Djurdjić Mijin
- Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - A M Milinda Abeykoon
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Andrijana Šolajić
- Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - Ana Milosavljević
- Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - Jelena Pešić
- Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - Yu Liu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
| | - Cedomir Petrovic
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
| | - Zoran V Popović
- Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia.,Serbian Academy of Sciences and Arts, Knez Mihailova 35, 11000 Belgrade, Serbia
| | - Nenad Lazarević
- Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| |
Collapse
|
5
|
Lontio Fomekong R, You S, Enrichi F, Vomiero A, Saruhan B. Impact of Oxalate Ligand in Co-Precipitation Route on Morphological Properties and Phase Constitution of Undoped and Rh-Doped BaTiO 3 Nanoparticles. NANOMATERIALS 2019; 9:nano9121697. [PMID: 31795089 PMCID: PMC6956155 DOI: 10.3390/nano9121697] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 11/16/2022]
Abstract
In order to design and tailor materials for a specific application like gas sensors, the synthesis route is of great importance. Undoped and rhodium-doped barium titanate powders were successfully synthesized by two routes; oxalate route and classic route (a modified conventional route where solid-state reactions and thermal evaporation induced precipitation takes place). Both powders were calcined at different temperatures. X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX) and Brunauer-Emmet-Teller (BET) analyses are employed to identify the phases and polymorphs, to determine the morphology, the chemical composition and the specific surface area of the synthesized materials, respectively. The so-called oxalate route yields pure BaTiO3 phase for undoped samples at 700 °C and 900 °C (containing both cubic and tetragonal structures), while the classic route-synthesized powder contains additional phases such as BaCO3, TiO2 and BaTi2O5. Samples of both synthesis routes prepared by the addition of Rh contain no metallic or oxide phase of rhodium. Instead, it was observed that Ti was substituted by Rh at temperatures 700 °C and 900 °C and there was some change in the composition of BaTiO3 polymorph (increase of tetragonal structure). Heat-treatments above these temperatures show that rhodium saturates out of the perovskite lattice at 1000 °C, yielding other secondary phases such as Ba3RhTi2O9 behind. Well-defined and less agglomerated spherical nanoparticles are obtained by the oxalic route, while the classic route yields particles with an undefined morphology forming very large block-like agglomerates. The surface area of the synthesized materials is higher with the oxalate route than with the classic route (4 times at 900 °C). The presence of the oxalate ligand with its steric hindrance that promotes the uniform distribution and the homogeneity of reactants could be responsible for the great difference observed between the powders prepared by two preparation routes.
Collapse
Affiliation(s)
- Roussin Lontio Fomekong
- Department of High-Temperature and Functional Coatings, Institute of Materials Research, German Aerospace Center, 51147 Cologne, Germany
- Correspondence: (R.L.F.); (B.S.)
| | - Shujie You
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of technology, 97187 Luleå, Sweden; (S.Y.); (F.E.); (A.V.)
| | - Francesco Enrichi
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of technology, 97187 Luleå, Sweden; (S.Y.); (F.E.); (A.V.)
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venezia Mestre, Italy
| | - Alberto Vomiero
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of technology, 97187 Luleå, Sweden; (S.Y.); (F.E.); (A.V.)
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venezia Mestre, Italy
| | - Bilge Saruhan
- Department of High-Temperature and Functional Coatings, Institute of Materials Research, German Aerospace Center, 51147 Cologne, Germany
- Correspondence: (R.L.F.); (B.S.)
| |
Collapse
|
6
|
Cui J, Olmsted DL, Mehta AK, Asta M, Hayes SE. NMR Crystallography: Evaluation of Hydrogen Positions in Hydromagnesite by
13
C{
1
H} REDOR Solid‐State NMR and Density Functional Theory Calculation of Chemical Shielding Tensors. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jinlei Cui
- Department of Chemistry Washington University in St. Louis 1 Brookings Drive, Campus Box 1134 St. Louis MO 63130 USA
| | - David L. Olmsted
- Department of Materials Science and Engineering University of California, Berkeley Berkeley CA USA
| | - Anil K. Mehta
- Department of Chemistry Emory University Atlanta GA USA
| | - Mark Asta
- Department of Materials Science and Engineering University of California, Berkeley Berkeley CA USA
- Materials Science Division Lawrence Berkeley National Laboratory Berkeley CA USA
| | - Sophia E. Hayes
- Department of Chemistry Washington University in St. Louis 1 Brookings Drive, Campus Box 1134 St. Louis MO 63130 USA
| |
Collapse
|
7
|
Cui J, Olmsted DL, Mehta AK, Asta M, Hayes SE. NMR Crystallography: Evaluation of Hydrogen Positions in Hydromagnesite by 13 C{ 1 H} REDOR Solid-State NMR and Density Functional Theory Calculation of Chemical Shielding Tensors. Angew Chem Int Ed Engl 2019; 58:4210-4216. [PMID: 30672073 DOI: 10.1002/anie.201813306] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/08/2019] [Indexed: 12/24/2022]
Abstract
Solid-state NMR measurements coupled with density functional theory (DFT) calculations demonstrate how hydrogen positions can be refined in a crystalline system. The precision afforded by rotational-echo double-resonance (REDOR) NMR to interrogate 13 C-1 H distances is exploited along with DFT determinations of the 13 C tensor of carbonates (CO3 2- ). Nearby 1 H nuclei perturb the axial symmetry of the carbonate sites in the hydrated carbonate mineral, hydromagnesite [4 MgCO3 ⋅Mg(OH)2 ⋅4 H2 O]. A match between the calculated structure and solid-state NMR was found by testing multiple semi-local and dispersion-corrected DFT functionals and applying them to optimize atom positions, starting from X-ray diffraction (XRD)-determined atomic coordinates. This was validated by comparing calculated to experimental 13 C{1 H} REDOR and 13 C chemical shift anisotropy (CSA) tensor values. The results show that the combination of solid-state NMR, XRD, and DFT can improve structure refinement for hydrated materials.
Collapse
Affiliation(s)
- Jinlei Cui
- Department of Chemistry, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1134, St. Louis, MO, 63130, USA
| | - David L Olmsted
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, USA
| | - Anil K Mehta
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | - Mark Asta
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, USA.,Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Sophia E Hayes
- Department of Chemistry, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1134, St. Louis, MO, 63130, USA
| |
Collapse
|
8
|
Ike IA, Zhang J, Groth A, Orbell JD, Duke M. Effects of dissolution conditions on the properties of PVDF ultrafiltration membranes. ULTRASONICS SONOCHEMISTRY 2017; 39:716-726. [PMID: 28732998 DOI: 10.1016/j.ultsonch.2017.05.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 05/31/2017] [Accepted: 05/31/2017] [Indexed: 06/07/2023]
Abstract
Poly (vinylidene fluoride) (PVDF) is an important membrane forming material for water treatment. Earlier works have shown that major morphological changes can be achieved when PVDF is dissolved under different conditions with practical applications in membrane distillation and protein attachment. However, no previous report has discussed the effects of dissolution conditions on the performance of PVDF under ultrafiltration, which is one of the most important applications of the polymer. In this work, four different PVDF ultrafiltration membranes were produced from dopes dissolved either by stirring at 24°C, 90°C, 120°C or by sonication. It is shown that dope sonication results in membrane with enhanced thermal and mechanical stability, improved permeate flux during oil emulsion filtration and high flux recovery of ∼63% after cleaning. As a comparison, flux recovery of only ∼26% was obtained for the membrane produced from dope dissolved at 24°C. The outstanding performance of the dope-sonicated membrane was linked to its slightly lower porosity, narrow distribution of small pores and relatively smooth skin layer. Performance parameters for all membranes showed good correlation to porosity suggesting a tool for membrane design achievable by simple variation in the mode of polymer dissolution. The polymer dissolution effect was related to the degree of unfolding of the polymer molecular chains and their entanglements.
Collapse
Affiliation(s)
- Ikechukwu A Ike
- Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, Melbourne, Victoria 8001, Australia.
| | - Jianhua Zhang
- Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, Melbourne, Victoria 8001, Australia
| | - Andrew Groth
- Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, Melbourne, Victoria 8001, Australia
| | - John D Orbell
- Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, Melbourne, Victoria 8001, Australia
| | - Mikel Duke
- Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, Melbourne, Victoria 8001, Australia
| |
Collapse
|
9
|
Lekgoathi M, Kock L. Thermal decomposition and vibrational spectroscopic aspects of pyridinium hexafluorophosphate (C 5 H 5 NHPF 6 ). J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.06.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|