Lithium battery with solid polymer electrolyte based on comb-like copolymers

Daigle, Jean‐Christophe; Vijh, Ashok K.; Hovington, Pierre; Gagnon, Catherine; Hamel-Paquet, J.; Verreault, Serge; Turcotte, Nancy; Clément, Daniel; Guerfi, Abdelbast; Zaghib, Karim

doi:10.1016/j.jpowsour.2014.12.061

Cited by 82 publications

(62 citation statements)

References 52 publications

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“…Synthesis of comb-like copolymers as solid polymer electrolytes has just been reported. 52 The synthesis involved anionic polymerization of styrene (St) and 4-vinylanisole (VA) followed by the grafting of poly(ethylene glycol) monomethyl ether methacrylate (PEGMA) by atom-transfer radical polymerization (ATRP). The ionic conductivity of 10 −5 S cm −1 at room temperature and very low activation energy (less than 10 kJmol −1 ) were assigned to the observed nano-and microphase separations, which in turn, depend on the ratio of grafting.…”

Section: Amorphous Polymer Electrolytesmentioning

confidence: 99%

Review—On Order and Disorder in Polymer Electrolytes

Golodnitsky

Strauss

Greenbaum

2015

J. Electrochem. Soc.

206

135

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This contribution presents an overview of more than three-decades-long studies of the structure and mechanism of ion conduction in polyethylene-oxide-based solid polymer electrolytes. Conductivity in polymer electrolytes has long been viewed as confined to the amorphous phase above the glass-transition temperature (Tg). Above Tg, polymer chain motion creates a dynamic, disordered environment that was thought to play a critical role in facilitating ion transport. Difficulty of finding the amorphous polymer with sufficient ionic conductivity has raised the fundamental question of whether polymer electrolytes are intrinsically inferior to other electrolytes in terms of their charge-transport capability. Recently, enhanced ionic conductivity has been detected in ordered (longitudinally stretched and cast under gradient magnetic field) polymer electrolytes, in crystalline ion-polyether 1:6 complexes and polymer-in-salt electrolytes. These results have opened a new trend in the search for ion transport in solid polymer electrolytes. The very latest publications present new hybrid-and block-co-polymers, a new class of functional materials (polymerized ionic liquids), and new promising approaches aimed at the development of polymer-based superionic conductors with rigid nanochannel architectures that enable rapid ion transport decoupled from segmental relaxation. Solid Polymer Electrolytes-Structure and Mechanism of Ion TransportMuch research deals with high-ionic-conductive polymer electrolytes because of their current and potential applications as electrochromic and temperature-sensitive printed electronics devices, biomedical sensors, supercapacitors, solar cells and batteries. Polymer electrolytes offer pronounced advantages over conventional liquid electrolytes. These include: a versatile shape, mechanical strength and stable contact between the electrode and electrolyte interfaces. In addition, solid electrolytes are safer than liquid electrolytes as they do not have a leakage problem and because of their nontoxic, low-vaporpressure, and non-flammable properties. [1][2][3][4][5][6][7] Ion-polyether complexes (or polymer electrolytes) were first discovered by Fenton, Parker and Wright in 1973. 8 Since then, such complexes have been prepared with many different monatomic ions and indeed many different polymeric ligands. Armand in 1979 recognized that Li + -polyether complexes could be used as solid electrolytes in electrochemical devices. 9The classic polymer electrolyte comprises organic macromolecules (usually polyether polymer) that are complexed with inorganic salts. The polymer matrix must contain a Lewis base (e.g. ethylene-oxide unit, -OCH 2 CH 2 -) to solvate the lithium salt. The salt-solvent mixing entropy consists mainly of two components: translational and configurational. Contrary to the case of water, the mixing entropy for the formation of polymer electrolytes is small or even positive. The incorporation of salts into the polymer inevitably reduces the freedom of polymer-chain motion, thus causing ...

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Section: Amorphous Polymer Electrolytesmentioning

confidence: 99%

Review—On Order and Disorder in Polymer Electrolytes

Golodnitsky

Strauss

Greenbaum

2015

J. Electrochem. Soc.

206

135

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“…Comb-like copolymers with soft and hard blocks, i.e., with low and high Tgs, display phase segregation when prepared as films [12]. This behaviour is key to promote good ionic conductivity and to prevent dendrite growth [20].…”

Section: Description Of Polymers Investigated By Solid-state Nmrmentioning

confidence: 99%

“…Table 1 reports the different characteristics of the polymers that are reported in ref. [12]. The PEGMA/PS ratio is important because it has been directly related to the electrochemical performance of the cells [12].…”

Section: Description Of Polymers Investigated By Solid-state Nmrmentioning

confidence: 99%

“…[12]. The PEGMA/PS ratio is important because it has been directly related to the electrochemical performance of the cells [12]. Polymer 3 was not used as SPE because the high molecular weight of the PEGMA block made it impossible to dissolve in a reasonable amount of solvent.…”

Section: Description Of Polymers Investigated By Solid-state Nmrmentioning

confidence: 99%

“…Using elegant polymer architectures with rigid and soft blocks to create phase separation is now a trend in the development of a new SPE [12][13][14][15]. The development of SPEs involves complex architectures that influence the interaction between the soft and the hard blocks.…”

Section: Introductionmentioning

confidence: 99%

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Solid-State NMR Study of New Copolymers as Solid Polymer Electrolytes

et al. 2018

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Abstract:We report the analysis of comb-like polymers by solid-state NMR. The polymers were previously evaluated as solid-polymer-electrolytes (SPE) for lithium-polymer-metal batteries that have suitable ionic conductivity at 60 • C. We propose to develop a correlation between 13 C solid-state NMR measurements and phase segregation. 13 C solid-state NMR is a perfect tool for differentiating polymer phases with fast or slow motions. 7 Li was used to monitor the motion of lithium ions in the polymer, and activation energies were calculated.

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Comb‐Like Polymers

Wang

et al. 2017

Encyclopedia of Polymer Science and Technology

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Comb‐like polymers, as a kind of special graft polymers, have attracted interests due to their predetermined molecular structure and selected functionality. By controlling the structural composition of comb‐like polymers—such as the rigidity of polymer backbone, the length‐scale and the topological structure of the side chains—some interesting properties can be manipulated, and the transformation from passive to intelligent response is well approached. The incompatible polymeric main chain and side chain in comb‐like polymers contribute to novel hierarchical architectures and topologies, which exhibit various applications in textile, chemistry, proton conduction, waste treatment, and electronic fields. A deep understanding of the hierarchical structure and the assembled morphologies is helpful in achieving high‐performance functional materials used in the fabrication of microelectronic devices, microchip cooling, and so on. Herein, we review the recent progress on comb‐like polymers and highlight their fabrication, structure, and property, especially from the viewpoint of crystallization, phase transition, and thermal behavior.

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Lithium battery with solid polymer electrolyte based on comb-like copolymers

Cited by 82 publications

References 52 publications

Review—On Order and Disorder in Polymer Electrolytes

Review—On Order and Disorder in Polymer Electrolytes

Solid-State NMR Study of New Copolymers as Solid Polymer Electrolytes

Comb‐Like Polymers

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