Polyphosphazene based composite polymer electrolytes

Kaskhedikar, N.; Paulsdorf, J.; Burjanadze, M.; Karatas, Yunus; Roling, Bernhard; Wiemhöfer, Hans‐Dieter

doi:10.1016/j.ssi.2006.05.003

Cited by 40 publications

(45 citation statements)

References 19 publications

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“…This includes friends and colleagues both inside and outside SFB 458, as well as KF's past coworkers. To name just a few, in alphabetical order, we would especially like to thank A. Bunde Besides thanking our friends at SFB 458 for an atmosphere of intense engagement and healthy exchange of views, we also would like to cite a few relevant results of theirs [110][111][112][113][114][115][116][117][118][119][120][121][122][123][124][125][126] which have added new insights while addressing issues complementary to those treated in this overview.…”

Section: Acknowledgementmentioning

confidence: 99%

First and Second Universalities: Expeditions Towards and Beyond

Funke¹,

Banhatti

Laughman³

et al. 2010

Zeitschrift Für Physikalische Chemie

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Section: Acknowledgementmentioning

confidence: 99%

First and Second Universalities: Expeditions Towards and Beyond

Funke¹,

Banhatti

Laughman³

et al. 2010

Zeitschrift Für Physikalische Chemie

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“…The rather high flexibility of the inorganic backbone entails both, low T g values and a reduced tendency towards crystallisation and thus offers the promise of high ionic conductivity. Successful examples include MEEP : LiTf (MEEP = methoxyethoxyethoxypolyphosphazene; Tf = CF 3 SO 3 − ) and BMEAP : LiTf (BMEAP = bis(2-methoxy-ethyl)amino) polyphosphazene) polymer electrolytes [24,25]. First accounts of the local Li coordination motifs in these polymer electrolyte systems have been given by Allcock and Luther.…”

Section: Salt-in-polymer-electrolytesmentioning

confidence: 99%

Local Li Cation Coordination and Dynamics in Novel Solid Electrolytes

Wüllen¹,

Echelmeyer

Voigt

et al. 2010

Zeitschrift Für Physikalische Chemie

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Ionic TransportResearch on solid ionic conductors for use as electrolytes in all solid state batteries still constitutes a rather vivid branch of today's materials science. Despite enormous efforts, neither the development of a solid electrolyte fulfilling the key requirements such as mechanical stability and high ionic conductivity at ambient temperature has been successful nor has an extended understanding of the local Li coordination motifs in the often amorphous systems been obtained. In this contribution, recent progress both in the development of novel solid state electrolytes with high ionic conductivity and mechanical stability and in the characterization of the local Li coordination motifs in these electrolytes from our laboratory is presented. The work was performed as a project within the framework of the Collaborative Research Centre SFB 458 "Ionic Motion in Materials with Disordered Structures -From Elementary Steps to Macroscopic Transport". Results will be given for polymer electrolytes based on polyethylene oxide (PEO), polyphosphazene (PPZ) and polyacrylonitrile (PAN) with various Li salts, nano-composites of these polymer electrolytes and Al 2 O 3 as a ceramic filler, novel inorganic/organic hybrid electrolytes, in which a mixture of an ionic liquid and Li salt is confined within the pore system of a SiO 2 glass, and a crystalline electrolyte, Li 5 La 3 Nb 2 O 12 . Employing a range of advanced solid state NMR methodologies including dipolar based NMR techniques and pulsed field gradient (PFG) NMR and impedance spectroscopy we were able to obtain a detailed knowledge about the local Li cation coordination motifs and the mechanism of Li transport in these electrolytes. Especially the hybrid electrolytes and the salt rich PAN based polymer electrolytes were identified as rather promising materials which combine a high ionic conductivity and mechanical stability.

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“…Between room temperature and 1001C, the conductivity of this complex was reported to be one to three orders of magnitude greater than for PEO, suggesting an important opportunity for MEEP as a polyelectrolyte for thin-film batteries operating at room temperature. In subsequent studies, conductivities up to 10 À5 S/cm were reported by Kaskhedikar et al [10] for poly[(2-methoxyethyl) amino(n-propylamino)phosphazene] (2) with LiCF 3 SO 3 and 2% Al 2 O 3 nanoparticles. Comparable conductivities (up to 7.69 Â 10 À5 S/cm) have been reported by Allcock and co-workers [11] for MEEP-silicate hybrid networks.…”

Section: Polyphosphazene Electrolytesmentioning

confidence: 74%

Transport Properties of Polyphosphazenes

Fried¹

2008

Polyphosphazenes for Biomedical Applications

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Polyphosphazene based composite polymer electrolytes

Cited by 40 publications

References 19 publications

First and Second Universalities: Expeditions Towards and Beyond

First and Second Universalities: Expeditions Towards and Beyond

Local Li Cation Coordination and Dynamics in Novel Solid Electrolytes

Transport Properties of Polyphosphazenes

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