Novel amphiphilic polymer gel electrolytes based on (PEG‐<i>b</i>‐GMA)‐<i>co</i>‐MMA

Luo, Dan; Li, Yang; Yang, Mujie

doi:10.1002/app.32502

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…First, it is very challenging to develop an electrolyte that can show excellent performances in terms of all properties. Among these studies, safety enhancement for liquid electrolytes, [13][14][15][16][17][18][19][20][21] ionic conductivity improvement for solid polymeric electrolytes, balance between mechanical and ionic conductivity properties for gel electrolytes, [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62] single-ion conduction, and improvement of the Li + transference number for solid or gel electrolytes [63][64][65][66][67][68][69][70][71][72][73][74] are the most popular topics. Among these studies, safety enhancement for liquid electrolytes, [13][14][15][16][17][18][19][20]…”

Section: Electrolyte Propertiesmentioning

confidence: 99%

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

2014

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Increasing interest in flexible/wearable electronics, clean energy, electrical vehicles, and so forth is calling for advanced energy‐storage devices, such as high‐performance lithium‐ion batteries (LIBs), which can not only store energy efficiently and safely, but also possess additional properties, such as good mechanical properties to bear deformations or even to be used as structural components. These expectations first indicate the directions, but also raise new challenges for the advancement of energy materials. As one of the critical components in LIBs, the electrolyte connecting the two electrodes is vital for achieving the desired performances in batteries. In this Review, the developments of various liquid electrolytes (organic, ionic liquid, and aqueous electrolytes), solid electrolytes (solid polymer and inorganic solid), as well as gel electrolytes is briefly summarized and discussed. For each type of electrolyte, the challenging issues and possible solutions are discussed. In particular, safety, ionic conductivity, and contact/interface issues are emphasized. Finally, from a composite point of view, strategies for the development of high‐performance electrolytes with all‐round properties are proposed.

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Section: Electrolyte Propertiesmentioning

confidence: 99%

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

2014

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Influence of a rigid polystyrene block on the free volume and ionic conductivity of a gel polymer electrolyte based on poly(methyl methacrylate)‐block‐polystyrene

Guan

Chen

et al. 2016

J of Applied Polymer Sci

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Diblock copolymers poly(methyl methacrylate)-block-polystyrene with three different molar ratios [poly(methyl methacrylate)/polystyrene (PS) 5 1:1, 1:1.5, and 1:1.8] were synthesized by atom transfer radical polymerization and used as a polymer matrix for gel polymer electrolytes (GPEs). The positron annihilation lifetime spectroscopy was applied to determine the free-volume behaviors of different GPEs, respectively. We illustrated that a proper PS ratio may led to the formation of a high fraction of free volume, and the influence of the PS ratio on the free-volume fraction was caused by the different morphologies of the GPEs because of the different packing densities of the PS rigid block. The ionic conductivity was correlated with the free volume in the GPE through the study of the ionic conductivity dependence on the temperature; this followed the Vogel-Tamman-Fulcher equation. Moreover, an ionic conductive model was proposed, in which variations of the free-volume behavior provide different ionic-conducting abilities. Thermogravimetric analysis indicated that GPEs based on different block copolymers exhibited high liquid-electrolyte preservation properties.

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4‐Styrenesulfonyl‐(2‐methyl)aziridine: The First Bivalent Aziridine‐Monomer for Anionic and Radical Polymerization

Gleede

Rieger

Homann-Müller

et al. 2017

Macro Chemistry & Physics

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4‐Styrenesulfonyl‐(2‐methyl)aziridine (StMAz), the first orthogonal aziridine monomer, for both anionic ring‐opening and radical polymerization is presented. Both polymerization pathways are accessible without using protective groups. Aza‐anionic ring‐opening polymerization (A‐AROP) of StMAz and other methyl‐aziridine derivatives provide multifunctional polyaziridines. Molecular weights between 3000 and 13 000 g mol−1 are obtained with low molecular weight dispersities (Ð = 1.1). The amount of vinyl groups in linear polyaziridines from A‐AROP depends on the monomer/comonomer ratio. The vinyl groups of P(StMAz)‐ homo‐ or copolymers are entirely convertible by thiol‐ene addition. This allows modification with multiple functional groups. Free radical polymerization of StMAz leads to polyalkylenes with aziridine side groups, which are known to be efficiently addressable via nucleophiles. Polysulfonamides still belong to a rather new class of polymers accessible by anionic polymerization. Enlarging the scope of postpolymerization modifications on polyaziridines/‐sulfonamides is important for further macromolecular architectures. The aziridine and the vinyl group are combined to develop the first orthogonal monomer for aza‐anionic polymerization and radical polymerization.

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Novel amphiphilic polymer gel electrolytes based on (PEG‐b‐GMA)‐co‐MMA

Cited by 5 publications

References 21 publications

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

Influence of a rigid polystyrene block on the free volume and ionic conductivity of a gel polymer electrolyte based on poly(methyl methacrylate)‐block‐polystyrene

4‐Styrenesulfonyl‐(2‐methyl)aziridine: The First Bivalent Aziridine‐Monomer for Anionic and Radical Polymerization

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