Electrochemical performance of Li2FeSiO4 as a new Li-battery cathode material
2005 (English)In: Electrochemistry communications, ISSN 1388-2481, E-ISSN 1873-1902, Vol. 7, no 2, 156-160 p.Article in journal (Refereed) Published
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).
Place, publisher, year, edition, pages
Elsevier , 2005. Vol. 7, no 2, 156-160 p.
Lithium-ion battery, Iron silicate, Cathode material
IdentifiersURN: urn:nbn:se:uu:diva-94465DOI: 10.1016/j.elecom.2004.11.008OAI: oai:DiVA.org:uu-94465DiVA: diva2:168314