Electrochemical performance of Li2FeSiO4 as a new Li-battery cathode material

Anton Nytén; Ali Abouimrane; Michel Armand; Torbjörn Gustafsson; John O. Thomas

doi:10.1016/j.elecom.2004.11.008

Electrochemical performance of Li₂FeSiO₄ as a new Li-battery cathode material

Anton Nytén
, Ali Abouimrane
, Michel Armand
, Torbjörn Gustafsson
, John O. Thomas

Emerging and Solid-State Batteries

Research output: Contribution to journal › Article › peer-review

807 Scopus citations

Abstract

Phase-pure lithium iron silicate (Li₂FeSiO₄) has been prepared successfully. Its ambient temperature structure has been determined by X-ray diffraction and its electrochemical performance characterised at 60°C. The resulting cyclic voltammogram suggests a phase transition to a more stable structure after the first cycle. This could involve a structural ordering process from a solid-solution to a long-range-ordered structure. The initial charge capacity of 165 mAh/g (99% of the theoretical value) stabilises after a few cycles to around 140 mAh/g (84% of the theoretical value).

Original language	English
Pages (from-to)	156-160
Number of pages	5
Journal	Electrochemistry Communications
Volume	7
Issue number	2
DOIs	https://doi.org/10.1016/j.elecom.2004.11.008
State	Published - Feb 2005

Funding

This work has been supported in Sweden by The Swedish Energy Agency (STEM), The Swedish Science Council (VR) and The Knut and Alice Wallenberg Foundation (KAW).

Keywords

Cathode material
Iron silicate
Lithium-ion battery

Access to Document

10.1016/j.elecom.2004.11.008

Cite this

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title = "Electrochemical performance of Li2FeSiO4 as a new Li-battery cathode material",

abstract = "Phase-pure lithium iron silicate (Li2FeSiO4) has been prepared successfully. Its ambient temperature structure has been determined by X-ray diffraction and its electrochemical performance characterised at 60°C. The resulting cyclic voltammogram suggests a phase transition to a more stable structure after the first cycle. This could involve a structural ordering process from a solid-solution to a long-range-ordered structure. The initial charge capacity of 165 mAh/g (99\% of the theoretical value) stabilises after a few cycles to around 140 mAh/g (84\% of the theoretical value).",

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AU - Nytén, Anton

AU - Abouimrane, Ali

AU - Armand, Michel

AU - Gustafsson, Torbjörn

AU - Thomas, John O.

PY - 2005/2

Y1 - 2005/2

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AB - Phase-pure lithium iron silicate (Li2FeSiO4) has been prepared successfully. Its ambient temperature structure has been determined by X-ray diffraction and its electrochemical performance characterised at 60°C. The resulting cyclic voltammogram suggests a phase transition to a more stable structure after the first cycle. This could involve a structural ordering process from a solid-solution to a long-range-ordered structure. The initial charge capacity of 165 mAh/g (99% of the theoretical value) stabilises after a few cycles to around 140 mAh/g (84% of the theoretical value).

KW - Cathode material

KW - Iron silicate

KW - Lithium-ion battery

UR - https://www.scopus.com/pages/publications/12744265219

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