Beyond PEO—Alternative host materials for Li + -conducting solid polymer electrolytes

Mindemark, Jonas; Lacey, Matthew J.; Bowden, Tim; Brandell, Daniel

doi:10.1016/j.progpolymsci.2017.12.004

Cited by 833 publications

(979 citation statements)

References 242 publications

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“…1 H, and 7 Li Nuclear Magnetic Resonance (NMR) spectra were recorded on Bruker spectrometers at 400 and 500 MHz at room temperature, in d 6 -DMSO, respectively. In the case of the single ion conducting polymer electrolyte, the surface of metallic lithium had to be treated.…”

Section: Articlesmentioning

confidence: 99%

“…[1] A popular approach to further improve lithium transport numbers (T Li + > 0, 8) consists of anchoring the negatively charged ion to the polymeric chain, named then as single-ion conducting polymer electrolytes (SIPEs). Nowadays, other polymers such as polycarbonates are being extensively investigated as alternatives to PEO due to the possibility of lithium coordination by carbonate groups and the higher lithium transference number of its SPEs (T Li + > 0,5 vs. T Li + > 0,2 for PEO).…”

Section: Introductionmentioning

confidence: 99%

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Single‐Ion Conducting Poly(Ethylene Oxide Carbonate) as Solid Polymer Electrolyte for Lithium Batteries

Meabe

Goujon

et al. 2019

Batteries & Supercaps

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Single-ion conducting polymer electrolytes (SIPE) have attracted a lot of interest for application in high energy density lithium metal batteries. SIPEs possess lithium transport numbers close to unity, which does not provoke concentration gradients and holds the promise of limiting lithium dendrite formation. In this article, we have optimized a single-ion polymer incorporating the most successful chemical units in polymer electrolytes, such as ethylene oxide, carbonate, and a lithium sulfonimide. This single-ion poly(ethylene oxide carbonate) copolymer was synthesized by polycondensation between polyethylene glycol, dimethyl carbonate, and a functional diol including the pendant sulfonamide anionic group and the lithium counter-cation. By playing with the monomer stoichiometry, the crystallinity and ionic conductivity were optimized. The best copolymer showed high ionic conductivity values of 1.2 × 10 À 4 S cm À 1 at 70°C. Lithium interactions and mobility were studied by lithiumpulsed field gradient, lithium diffusion, NMR relaxation time measurements, and FTIR-ATR analysis. High lithium mobility is observed, which is due to the weakly coordinating chemical environment in the polymer and also that the sulfonamide in the SIPE adopts to a greater extent the cis conformation, which is known to promote lithium mobility. Finally, the performance of the singe-ion conducting poly(ethylene oxide carbonate) was compared in lithium symmetric cells versus an analogous conventional salt in polymer electrolyte, showing improved performance in lithium plating and stripping.

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Section: Articlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Single‐Ion Conducting Poly(Ethylene Oxide Carbonate) as Solid Polymer Electrolyte for Lithium Batteries

Meabe

Goujon

et al. 2019

Batteries & Supercaps

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“…Chen's group also designed a carbonate contained solid polymer electrolyte, combining the merits of PEG and polycarbonate . In fact, researches on polycarbonate have encompassed both fundamental study and solid electrolyte field since 2010 . Recently, members of Tominaga group demonstrated an end‐capped poly(ethylene carbonate) (PEC) based electrolyte with 120 mol % lithium salt and the introduction of acetate end‐groups improved the thermal stability over 30 °C.…”

Section: Solid Electrolytesmentioning

confidence: 99%

Recent Progress of Electrolyte Design for Lithium Metal Batteries

Wang

et al. 2020

Batteries & Supercaps

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Lithium metal batteries (LMBs) bring a bright future for the industrialization with higher voltage and energy density than conventional lithium ion batteries (LIBs) as lithium metal offers an ultra‐high specific capacity and the lowest electrochemical potential. However, they tend to confront unstable interface with electrolytes, uncontrollable dendrite growth and notorious safety concerns, seriously blocking the practical application of lithium metal anodes. Electrolyte is always considered as the most critical factor, directly affecting the overall battery behavior. In this case, the rearrangement of active components or designing novel electrolytes become indispensable approaches and tremendous efforts are required to seek for positive solutions. Herein, we provide recent advancements in prevailing liquid, solid and gel electrolytes from the perspective of their potential application in LMBs. The key scientific issues related to enhanced performance have also been highlighted.

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“…In any case, the low values of ionic conductivity and the low lithium transference number ( T Li ≈ 0.2) of PEO are important barriers for room temperature battery operation. In this sense, aliphatic polycarbonates were recently suggested as alternatives to PEO SPEs . Polycarbonate SPEs showed similar ionic conductivity values at high temperature but superior at room temperature as well as higher lithium transference numbers ( T Li ≥ 0.5) than PEO which has allowed the room temperature operation of lithium‐ion batteries.…”

Section: Polymer Electrolytesmentioning

confidence: 99%

Innovative Polymers for Next‐Generation Batteries

Mecerreyes

Porcarelli

Casado

2020

Macro Chemistry & Physics

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Lithium‐ion batteries are part of modern life, being present in daily‐used objects such as mobile phones, tablets, computers, watches, sport accessories, electric scooters, and cars. The next‐generation batteries require the development of innovative polymers that help to improve their performance in terms of power density, cyclability, raw materials' availability, low weight, printability, flexibility, sustainability, or security. This article highlights recent developments in the area of redox‐active, electronic/ionic conducting polymers. This includes the development of innovative binders for electrodes, polymer electrolytes, and redox polymers. All these new polymer developments are leading to new battery technologies such as metal–polymer batteries, organic batteries, polymer–air, and redox–flow batteries, which are expected to complement the current lithium‐ion technologies in the future.

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Beyond PEO—Alternative host materials for Li + -conducting solid polymer electrolytes

Cited by 833 publications

References 242 publications

Single‐Ion Conducting Poly(Ethylene Oxide Carbonate) as Solid Polymer Electrolyte for Lithium Batteries

Single‐Ion Conducting Poly(Ethylene Oxide Carbonate) as Solid Polymer Electrolyte for Lithium Batteries

Recent Progress of Electrolyte Design for Lithium Metal Batteries

Innovative Polymers for Next‐Generation Batteries

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