Salt-In-Polymer Electrolytes Based on Polysiloxanes for Lithium-Ion Cells: Ionic Transport and Electrochemical Stability

Hiller, Martin M.; Gentschev, Ann-Christin; Amereller, Marius; Gores, H. J.; Winter, Martin; Wiemhöfer, Hans Dieter

doi:10.1149/1.3563085

Cited by 11 publications

(3 citation statements)

References 42 publications

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“…Ionic conductivity of $10 À4 S cm À1 at 25 C was obtained. Wiemhöfer et al 451,[463][464][465] used a polymer (-[MeRSiO] nÀx - [MeRSiO] x -) consisting of a polysiloxane backbone with oligoether side chains and an allyltrimethoxysilane (ATMS) chain as the electrolyte host, and investigated the electrochemical properties of the polymer electrolyte with LiTf salt. The ionic conductivity was around 10 À5 to 10 À4 S cm À1 at 30 C.…”

Section: Peo Copolymersmentioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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This article reviews the PEO-based electrolytes for lithium-ion batteries.Poly(ethylene oxide) (PEO) based materials are widely considered as promising candidates of polymer hosts in solid-state electrolytes for high energy density secondary lithium batteries. They have several specific advantages such as high safety, easy fabrication, low cost, high energy density, good electrochemical stability, and excellent compatibility with lithium salt. However, the typical linear PEO does not reach the production requirement because its insufficient ionic conductivity due to the high crystallinity of the ethylene oxide (EO) chains, which can restrain the ionic transition due to the stiff structure especially at low temperature. The scientists have explored different approaches to reduce the crystallinity hence to improve the ionic conductivity of PEO-based electrolytes, including: blending, modifying and making PEO derivatives etc. This review is focused on surveying the recent developments and issues about PEO-based electrolytes for lithium-ion batteries.

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Section: Peo Copolymersmentioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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“…For example, the oxidation of the oligoether side groups varied with the sort of lithium salt. The electrochemical stability of cross‐linked salt‐in‐polysiloxane (PSx‐[P(EO) 3 OMe] 87.5% [PSi(OMe) 3 )] 12.5% ) with 12.5 wt% Si(OMe) 3 linking groups, 87.5 wt% oligoether, and lithium difluoro(oxalato)borate (LiODFB) or lithium bis(oxalate)borate (LiBOB) salt was measured by M. M. Hiller et al through CV method . They observed that the anodic current attributed to the oxidation of oligoether side groups started around 4.7 and 4.5 V separately in LiODFB‐ and LiBOB‐based electrolytes, which are much higher than the oxidation voltage of PEO‐LiClO 4 electrolyte .…”

Section: High‐voltage Compatibility Of Polymer Electrolytesmentioning

confidence: 99%

Intermolecular Chemistry in Solid Polymer Electrolytes for High‐Energy‐Density Lithium Batteries

et al. 2019

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Solid polymer electrolytes (SPEs) have aroused wide interest in lithium batteries because of their sufficient mechanical properties, superior safety performances, and excellent processability. However, ionic conductivity and high‐voltage compatibility of SPEs are still yet to meet the requirement of future energy‐storage systems, representing significant barriers to progress. In this regard, intermolecular interactions in SPEs have attracted attention, and they can significantly impact on the Li+ motion and frontier orbital energy level of SPEs. Recent advances in improving electrochemcial performance of SPEs are reviewed, and the underlying mechanism of these proposed strategies related to intermolecular interaction is discussed, including ion–dipole, hydrogen bonds, π–π stacking, and Lewis acid–base interactions. It is hoped that this review can inspire a deeper consideration on this critical issue, which can pave new pathway to improve ionic conductivity and high‐voltage performance of SPEs.

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“…Due to the small size of the cation, it strongly interacted with the lone pair electrons of oxygen atoms of the polymer host. The authors conclude that t Li+ should not be too low as this small cation would help ion penetration into dye-coated TiO 2 film, which increases the transportation of electrons in the TiO 2 matrix. ,, Freitas et al have investigated the DSSC-based poly(ethylene oxide- co -epichlorohydrin) (P(EO-EPI))/γ-butyrolactone (GBL) and different concentrations of LiI. The GBL acts as a plasticizer that allows the dissolution of a higher concentration of LiI salt and remarkable improvements in the conductivity at 20 wt % LiI.…”

Section: Available Alternatives: Polymer Electrolytesmentioning

confidence: 99%

Review on the Revolution of Polymer Electrolytes for Dye-Sensitized Solar Cells

et al. 2021

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Dye-sensitized solar cells (DSSCs) are a suitable replacement for conventional silicon solar cells due to their unique features, such as high energy conversion efficiency and cheap manufacturing cost. The liquid-state DSSCs, however, are poorly sustainable on a long-term basis because volatile liquids are used. The early intention of incorporating polymer into the liquid electrolytes was to curb the problem encountered by liquid electrolytes and enable the DSSCs to function as a long-term stability device. This work briefly reviews how the improvisation has been done on the polymer electrolytes formulation and the extent of how each element can affect the cell efficiency and long-term stability. The role of each component, such as the type of host polymer, iodide salts, nanoparticles, and organic additives that improve the performance of DSSCs, has also been highlighted. This clarified the main purpose of introducing various types of additives into electrolytes to enhance the transport properties as well as the performance of the DSSCs.

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Salt-In-Polymer Electrolytes Based on Polysiloxanes for Lithium-Ion Cells: Ionic Transport and Electrochemical Stability

Cited by 11 publications

References 42 publications

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Intermolecular Chemistry in Solid Polymer Electrolytes for High‐Energy‐Density Lithium Batteries

Review on the Revolution of Polymer Electrolytes for Dye-Sensitized Solar Cells

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