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A study of stability of plasticized PEO electrolytes

Chadwick, Alan V., Ranieri, Giuseppe Antonio, Terenzi, Mario, Webster, Mark I., Nicotera, Isabella (2002) A study of stability of plasticized PEO electrolytes. Solid State Ionics, 146 (1-2). pp. 143-150. ISSN 0167-2738. (doi:10.1016/S0167-2738(01)01003-7) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:9395)

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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.

Item Type: Article
DOI/Identification number: 10.1016/S0167-2738(01)01003-7
Uncontrolled keywords: polymer electrolytes; poly(ethylene oxide); plasticizers; ionic conductivity; lithium triflate; lithium perchlorate
Subjects: Q Science
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Alan Chadwick
Date Deposited: 21 Oct 2008 15:37 UTC
Last Modified: 16 Nov 2021 09:47 UTC
Resource URI: (The current URI for this page, for reference purposes)

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Chadwick, Alan V..

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