Fluorinated polysulfonamide based single ion conducting room temperature applicable gel-type polymer electrolytes for lithium ion batteries

Borzutzki, Kristina; Thienenkamp, Johannes Helmut; Diehl, Marcel; Winter, Martin; Brunklaus, Gunther

doi:10.1039/c8ta08391f

Cited by 120 publications

(96 citation statements)

References 81 publications

(158 reference statements)

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“…During charging, lithium ions convey a current from the positive to negative electrode through the electrolyte, which is reversed during discharging. LIBs have already become well‐liked rechargeable batteries as a predominant power source for portable electronics because of their comparatively higher energy density, good cycle life, and power performance . Meanwhile, at present, the available lithium resources in the earth's crust are limited, and the estimated lithium mean mass fraction is only 20 ppm.…”

Section: Introductionmentioning

confidence: 99%

“…LIBs have already become well-liked rechargeable batteries as ap redominant power source for portable electronics because of their comparatively higher energy density,g ood cycle life, and power per-formance. [20][21][22] Meanwhile, at present, the available lithium resources in the earth's crust are limited, and the estimated lithium mean mass fraction is only 20 ppm. The cost of lithium resources is rapidlyi ncreasing because of their tremendousu se in industrial areas.…”

Section: Introductionmentioning

confidence: 99%

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Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

Shinde

2019

ChemSusChem

150

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Current progress in the advancement of energy‐storage devices is the most important factor that will allow the scientific community to develop resources to meet the global energy demands of the 21st century. Nanostructured materials can be used as effective electrodes for energy‐storage devices because they offer various promising features, including high surface‐to‐volume ratios, exceptional charge‐transport features, and good physicochemical properties. Until now, the successful research frontrunners have focused on the preparation of positive electrode materials for energy‐storage applications; nevertheless, the electrochemical performance of negative electrodes is less frequently reported. This review mainly focuses on the current progress in the development of tungsten oxide‐based electrodes for energy‐storage applications, primarily supercapacitors (SCs) and batteries. Tungsten is found in various stoichiometric and nonstoichiometric oxides. Among the different tungsten oxide materials, tungsten trioxide (WO3) has been intensively investigated as an electrode material for different applications because of its excellent charge‐transport features, unique physicochemical properties, and good resistance to corrosion. Various WO3 composites, such as WO3/carbon, WO3/polymers, WO3/metal oxides, and tungsten‐based binary metal oxides, have been used for application in SCs and batteries. However, pristine WO3 suffers from a relatively low specific surface area and low energy density. Therefore, it is crucial to thoroughly summarize recent progress in utilizing WO3‐based materials from various perspectives to enhance their performance. Herein, the potential‐ and pH‐dependent behavior of tungsten in aqueous media is discussed. Recent progress in the advancement of nanostructured WO3 and tungsten oxide‐based composites, along with related charge‐storage mechanisms and their electrochemical performances in SCs and batteries, is systematically summarized. Finally, remarks are made on future research challenges and the prospect of using tungsten oxide‐based materials to further upgrade energy‐storage devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

Shinde

2019

ChemSusChem

150

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“…All considered PVdF-HFP blended SIPE membranes exhibit different polymer architectures, solvent solutions, and membrane compositions (other major characteristics of the polymer blends are collected in Table S1 , see Supplemental Information ) ( Zhang et al., 2014a ; Sun et al., 2014 ; Zhang et al., 2014b ; Qin et al., 2015 ; Rohan et al., 2015 ; Liu et al., 2016 ; Pan et al., 2016 ; Zhang et al., 2017a , 2017b ; Dong et al., 2018 ; Li et al., 2018 ; Chen et al., 2018 ; Li et al., 2019 ). The obtained morphologies of polymer electrolyte membranes similarly prepared from solution casting varied from highly porous (micrometer-sized pores) ( Sun et al., 2014 ; Zhang et al., 2014a , 2014b ; Pan et al., 2015 , 2016 ; Rohan et al., 2015 ; Zhang et al., 2017a , 2017b , 2018 ; Dong et al., 2018 ; Chen et al., 2018 ; Li et al., 2019 ) to rather dense structures (nanometer-sized pores), ( Zhang et al., 2014a , 2014b ; Qin et al., 2015 ; Liu et al., 2016 ; Pan et al., 2016 ; Li et al., 2018 ; Borzutzki et al., 2019 ), with no clear trend for different SIPE structures. Note, though, that a homogeneous membrane morphology is considered beneficial to prevent the formation of inhomogeneous high-surface-area (“needle-like” or “dendritic”) lithium (HSAL [ Winter et al., 2018 ]) deposits that otherwise could grow throughout the pore structures, eventually yielding short circuits within the cells ( Zhang, 2018 ; Lagadec et al., 2019 ).…”

Section: Resultsmentioning

confidence: 97%

Small Groups, Big Impact: Eliminating Li+ Traps in Single-Ion Conducting Polymer Electrolytes

et al. 2020

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Summary Single-ion conducting polymer electrolytes exhibit great potential for next-generation high-energy-density Li metal batteries, although the lack of sufficient molecular-scale insights into lithium transport mechanisms and reliable understanding of key correlations often limit the scope of modification and design of new materials. Moreover, the sensitivity to small variations of polymer chemical structures (e.g., selection of specific linkages or chemical groups) is often overlooked as potential design parameter. In this study, combined molecular dynamics simulations and experimental investigations reveal molecular-scale correlations among variations in polymer structures and Li + transport capabilities. Based on polyamide-based single-ion conducting quasi-solid polymer electrolytes, it is demonstrated that small modifications of the polymer backbone significantly enhance the Li + transport while governing the resulting membrane morphology. Based on the obtained insights, tailored materials with significantly improved ionic conductivity and excellent electrochemical performance are achieved and their applicability in LFP||Li and NMC||Li cells is successfully demonstrated.

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“…Subsequent studies were further focused on charge delocalization by bonding of electron‐withdrawing groups to sulfonate fragment (Scheme , 4 , 5 , 6 ). Afterwards came the era of SICs incorporating anions structurally similar to the well‐known bis(trifluoromethylsulfonyl)imide (TFSI) ion (Scheme , 7 , 8 , 9 , 10 , 12 ). This was later extended by the development of PILs bearing the so‐called ‘super‐TFSI’ anion (Scheme , 11 ).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, it was revealed that to increase the ion conductivity it is preferable to place the anion in the side chain rather than in polymer backbone (Scheme , 7 , 9 , 11 , 12 ). The longer the spacer between the attached anion and main polymer chain the higher is the conductivity (Scheme , 7 , 8 ).…”

Section: Introductionmentioning

confidence: 99%

Expanding the chemistry of single‐ion conducting poly(ionic liquid)s with polyhedral boron anions

Lozinskaya

Cotessat

Shmal’ko

et al. 2019

Polymer International

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The synthesis of a new family of single‐ion conducting random copolymers bearing polyhedral boron anions is reported. For this purpose two novel ionic monomers, namely [B12H11(OCH2CH2)2OC(O)C(CH3)CH2]2−[(C4H9)4N+]2 and [8‐(OCH2CH2)2OC(O)C(CH3)CH2‐3,3′‐Co(1,2‐C2B9H10)(1′,2′‐C2B9H11)]−K+, having methacrylate function, diethylene glycol bridge and closo‐dodecaborate or cobalt bis(1,2‐dicarbollide) anions were designed. Such monomers differ from previously reported ones by (i) chemically attached highly delocalized boron anions, by (ii) valency of the anion (divalent anion and monovalent one) and by (iii) the presence of oxyethylene flexible spacer between the methacrylate group and bonded anion. Their free radical copolymerization with poly(ethylene glycol) methyl ether methacrylate and subsequent ion exchange provided lithium‐ion conducting polyelectrolytes showing low glass transition temperature (−53 to −49 °C), ionic conductivity up to 9.1 × 10−7 S cm−1, lithium transference number up to 0.61 (70 °C) and electrochemical stability up to 4.1 V versus Li+/Li (70 °C). The incorporation of propylene carbonate (20–40 wt%) into the copolymers resulted in the enhancement of their ionic conductivity by one order of magnitude and significantly increased their electrochemical stability up to 4.7 V versus Li+/Li (70 °C). © 2019 Society of Chemical Industry

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Fluorinated polysulfonamide based single ion conducting room temperature applicable gel-type polymer electrolytes for lithium ion batteries

Abstract: Single ion conducting polymer electrolytes (SIPEs) comprised of homopolymers containing a polysulfonylamide segment in the polymer backbone are presented.

Cited by 120 publications

References 81 publications

Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

Small Groups, Big Impact: Eliminating Li+ Traps in Single-Ion Conducting Polymer Electrolytes

Expanding the chemistry of single‐ion conducting poly(ionic liquid)s with polyhedral boron anions

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