Surion Energy Ltd.

Abingdon, United Kingdom

Surion Energy Ltd.

Abingdon, United Kingdom

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Kendrick E.,Surion Energy Ltd. | Kendrick E.,University of Surrey | Slater P.,University of Birmingham
Annual Reports on the Progress of Chemistry - Section A | Year: 2010

This article reviews the literature reported during 2009 on conducting solids including both ionic and electronic conductors. The review focuses in particular on materials which have relevance in solid oxide fuel cell, lithium ion battery and superconductor applications. © 2010 The Royal Society of Chemistry.


Kendrick E.,Surion Energy Ltd. | Kendrick E.,Sharp Corporation | Barker J.,Surion Energy Ltd. | Bao J.,Surion Energy Ltd. | Switek A.,Surion Energy Ltd.
Journal of Power Sources | Year: 2011

The electrochemical rate properties of Li2FeS2 synthesized via a low cost solid state method have been investigated. Apparent diffusion coefficients calculated from EVS and GITT measurements show rate limitations upon charge with distinct differences between the iron redox and sulfur redox regions. These differences between the iron and sulfur redox reactions are not mimicked upon discharge. The apparent diffusion coefficients are greater upon discharge than charge and this is reflected in the rate capabilities as measured by galvanostatic discharge and charge measurements. © 2010 Elsevier B.V. All rights reserved.


Barker J.,Surion Energy Ltd. | Kendrick E.,Surion Energy Ltd.
Journal of Power Sources | Year: 2011

The electrochemical insertion properties and safety characteristics of the alternative Li-ion positive electrode material, lithium iron sulfide (Li 2FeS2) are presented. The active material is synthesized by a low cost, proprietary solid-state method. In terms of specific energy, the Li2FeS2 material offers a significant advantage over conventional lithium-ion positive electrode materials. The fully de-lithiated (charged) Li2-xFeS2 phase also demonstrates outstanding thermal stability suggesting that it may represent an excellent choice for safe, large format Li-ion battery applications. © 2010 Elsevier B.V. All rights reserved.

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