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Mapping Structure-Composition-Property Relationships in V and Fe Doped LiMnPO4 Cathodes for Lithium-Ion Batteries

Johnson, ID; Loveridge, M; Bhagat, R; Darr, JA; (2016) Mapping Structure-Composition-Property Relationships in V and Fe Doped LiMnPO4 Cathodes for Lithium-Ion Batteries. ACS Combinatorial Science , 18 (11) pp. 665-672. 10.1021/acscombsci.6b00035. Green open access

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Abstract

A series of LiMn1-x-yFexVyPO4 (LMFVP) nanomaterials have been synthesized using a pilot-scale continuous hydrothermal synthesis process (CHFS) and evaluated as high voltage cathodes in Li-ion batteries at a production rate of 0.25 kg h-1. The rapid synthesis and screening approach has allowed the specific capacity of the high Mn content olivines to be optimized, particularly at high discharge rates. Consistent and gradual changes in the structure and performance are observed across the compositional region under investigation; the doping of Fe at 20 at% (with respect to Mn) into lithium manganese phosphate, rather than V or indeed co-doping of Fe and V, gives the best balance of high capacity and high rate performance.

Type: Article
Title: Mapping Structure-Composition-Property Relationships in V and Fe Doped LiMnPO4 Cathodes for Lithium-Ion Batteries
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/acscombsci.6b00035
Publisher version: http://dx.doi.org/10.1021/acscombsci.6b00035
Language: English
Additional information: This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1521709
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