Chadwick, A.V. and Ranieri, G.A. and Terenzi, M. and Webster, M.I. and Nicotera, I. (2002) A study of stability of plasticized PEO electrolytes. Solid State Ionics, 146 (1-2). pp. 143-150. ISSN 0167-2738.
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Considerable research effort has been devoted to lowering the useful operating temperature of PEO-LiX polymer electrolytes to the ambient region. The most common approach has been that of adding liquid plasticizers, such as ethylene carbonate (EC) or propylene carbonate (PC), to the PEO-LiX matrix. In this paper, we have extensively studied EC plasticized LiCF3SO3.P(EO)(10) and LiClO4.P(EO)10, measuring the conductivity, thermal characteristics and X-ray diffraction patterns of the electrolyte films. A very significant feature of the results is that the enhanced conductivity of the as-prepared films is transient and is not maintained on thermal cycling under vacuum. The systems are not thermodynamically stable due to a loss of the bulk of the plasticizer and this will impair their applications in devices.
|Uncontrolled keywords:||polymer electrolytes; poly(ethylene oxide); plasticizers; ionic conductivity; lithium triflate; lithium perchlorate|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Faculties > Science Technology and Medical Studies > School of Physical Sciences
|Depositing User:||Alan Chadwick|
|Date Deposited:||21 Oct 2008 15:37|
|Last Modified:||06 Sep 2011 00:22|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/9395 (The current URI for this page, for reference purposes)|
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