Stable cross-linked gel terpolymer electrolyte containing methyl phosphonate for sodium ion batteries

Zheng, Jinyun; Liu, Xiaoling; Duan, Yalei; Chen, Linjie; Zhang, Xinchao; Feng, Xiangming; Zhao, Yufen

doi:10.1016/j.memsci.2019.04.044

Cited by 29 publications

(10 citation statements)

References 33 publications

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“…The main direction of investigations is lithium cation surroundings, local and macroscopic mobilities of Li + and F − -containing fragments, and electrolyte composition-ion transport correlations. Modern and complicated NMR techniques are employed, especially solid-state high resolution magic angle spinning (MAS) NMR, pulsed-field gradient NMR, and NMR spin relaxation [13,29,[32][33][34]37,39,40,42,47,[49][50][51][52][53][54][56][57][58][59][60][61]65,72,73,76,77,80,92,.…”

Section: Nmr Study Of Polymer Electrolytesmentioning

confidence: 99%

Polymer Electrolytes for Lithium-Ion Batteries Studied by NMR Techniques

et al. 2022

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This review is devoted to different types of novel polymer electrolytes for lithium power sources developed during the last decade. In the first part, the compositions and conductivity of various polymer electrolytes are considered. The second part contains NMR applications to the ion transport mechanism. Polymer electrolytes prevail over liquid electrolytes because of their exploitation safety and wider working temperature ranges. The gel electrolytes are mainly attractive. The systems based on polyethylene oxide, poly(vinylidene fluoride-co-hexafluoropropylene), poly(ethylene glycol) diacrylate, etc., modified by nanoparticle (TiO2, SiO2, etc.) additives and ionic liquids are considered in detail. NMR techniques such as high-resolution NMR, solid-state NMR, magic angle spinning (MAS) NMR, NMR relaxation, and pulsed-field gradient NMR applications are discussed. 1H, 7Li, and 19F NMR methods applied to polymer electrolytes are considered. Primary attention is given to the revelation of the ion transport mechanism. A nanochannel structure, compositions of ion complexes, and mobilities of cations and anions studied by NMR, quantum-chemical, and ionic conductivity methods are discussed.

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Section: Nmr Study Of Polymer Electrolytesmentioning

confidence: 99%

Polymer Electrolytes for Lithium-Ion Batteries Studied by NMR Techniques

et al. 2022

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“…Titanium-based anodic materials have been extensively studied for lithium- and sodium-based batteries [ 171 , 172 , 173 , 174 , 175 ], together with a broad examination of nanostructures and morphologies able to guarantee mechanical stability, high performance, ease of preparation on metal supports and efficient charge transport in one-dimensional materials. However, studies on titanium-based anodes in the field of MIBs are still few and the scientific community started publishing the first results in 2020.…”

Section: Strategies Beyond Elemental Magnesium Anodesmentioning

confidence: 99%

An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables

et al. 2021

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Magnesium-based batteries represent one of the successfully emerging electrochemical energy storage chemistries, mainly due to the high theoretical volumetric capacity of metallic magnesium (i.e., 3833 mAh cm−3 vs. 2046 mAh cm−3 for lithium), its low reduction potential (−2.37 V vs. SHE), abundance in the Earth’s crust (104 times higher than that of lithium) and dendrite-free behaviour when used as an anode during cycling. However, Mg deposition and dissolution processes in polar organic electrolytes lead to the formation of a passivation film bearing an insulating effect towards Mg2+ ions. Several strategies to overcome this drawback have been recently proposed, keeping as a main goal that of reducing the formation of such passivation layers and improving the magnesium-related kinetics. This manuscript offers a literature analysis on this topic, starting with a rapid overview on magnesium batteries as a feasible strategy for storing electricity coming from renewables, and then addressing the most relevant outcomes in the field of anodic materials (i.e., metallic magnesium, bismuth-, titanium- and tin-based electrodes, biphasic alloys, nanostructured metal oxides, boron clusters, graphene-based electrodes, etc.).

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“…Therefore, the available flame-retardant polymer electrolytes have become one of the most desirable alternative electrolytes for the assembly of advanced batteries, − and cross-linking copolymerization is an effective method to improve the performance of gel polymer electrolytes . On the other hand, the phosphonate/phosphates show excellent thermal stability and flame retardancy and are used in the battery systems as flame-retardant additives or nonflammable electrolytes. , We reported two cross-linked phosphonates-based gel polymer electrolytes for sodium-ion batteries with good safety and long cycling stability. , To summarize, the design and synthesis of cross-linked gel copolymer electrolytes with good flame retardancy are very important but, until now, there are a few studies in the sodium-ion battery field. For the gel copolymer electrolytes, comonomers have effective effects on flexibility, crystallinity of the polymer framework, and even the performance of the corresponding electrolyte.…”

Section: Introductionmentioning

confidence: 99%

“…30,31 We reported two cross-linked phosphonates-based gel polymer electrolytes for sodium-ion batteries with good safety and long cycling stability. 32,33 To summarize, the design and synthesis of cross-linked gel copolymer electrolytes with good flame retardancy are very important but, until now, there are a few studies in the sodium-ion battery field. For the gel copolymer electrolytes, comonomers have effective effects on flexibility, crystallinity of the polymer framework, and even the performance of the corresponding electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Effects of Comonomers on the Performance of Stable Phosphonate-Based Gel Terpolymer Electrolytes for Sodium-Ion Batteries with Ultralong Cycling Stability

Zheng

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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Gel polymer electrolyte (GPE) is one of the most promising alternatives to solve the bottlenecks of nonaqueous liquid electrolytes such as decomposition, safety hazards, and growth of dendrites. In this work, three novel methyl phosphonate-based crosslinking gel terpolymer electrolytes with different comonomers are designed and prepared by in situ radical polymerization. The gel polymer electrolytes have excellent thermal stability, wide electrochemical windows (≥4.9 V), and high ionic conductivities (±3 mS cm–1), and may be used as less-flammable electrolytes for sodium-ion batteries. 31P NMR spectra, Arrhenius plot, and density functional theory (DFT) calculations confirm that multifunctional phosphonate structural units promote the dissociation of NaClO4 and help to transport the sodium ions freely in the polymer framework. X-ray photoelectron spectroscopy (XPS) results show that the gel polymer electrolytes have the capability of inhibiting liquid electrolyte decomposition and the formation of the stable solid electrolyte interphase (SEI) film. The Na3V2(PO4)3/GPE/Na cells exhibit better ultralong cycling stability and enhanced temperature performance than those of liquid cells. Strikingly, GPE1 has the best comprehensive electrochemical performance, especially the rate performance and long-term cycling stability with a capacity retention ratio of 82.6% after 3500 cycles, which indicates that different comonomers have obvious effects on the performance. Therefore, the full cell of SnS2/GPE1/Na3V2(PO4)3 is evaluated and delivers good cycling stability of 500 cycles, holding a great prospect for the design and production of phosphorus-containing electrolytes for safer sodium-ion batteries.

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Stable cross-linked gel terpolymer electrolyte containing methyl phosphonate for sodium ion batteries

Cited by 29 publications

References 33 publications

Polymer Electrolytes for Lithium-Ion Batteries Studied by NMR Techniques

Polymer Electrolytes for Lithium-Ion Batteries Studied by NMR Techniques

An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables

Effects of Comonomers on the Performance of Stable Phosphonate-Based Gel Terpolymer Electrolytes for Sodium-Ion Batteries with Ultralong Cycling Stability

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