title: Mapping Structure-Composition-Property Relationships in V- and Fe-Doped LiMnPO4Cathodes for Lithium-Ion Batteries.
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 codoping of Fe and V, gives the best balance of high capacity and high rate performance.
authors.affiliation: Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K.
authors.forename: Ian D
authors.initials: ID
authors.lastname: Johnson
authors.affiliation: Warwick University , Coventry, U.K. , CV4 7AL.
authors.forename: Melanie
authors.initials: M
authors.lastname: Loveridge
authors.affiliation: Warwick University , Coventry, U.K. , CV4 7AL.
authors.forename: Rohit
authors.initials: R
authors.lastname: Bhagat
authors.affiliation: Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K.
authors.forename: Jawwad A
authors.initials: JA
authors.lastname: Darr
mesh_terms: D011211:Electric Power Supplies; D004563:Electrochemistry; D004566:Electrodes; D007477:Ions; D007501:Iron / Q000737:chemistry; D008094:Lithium / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D014639:Vanadium / Q000737:chemistry
chemical_list: D007477:Ions; D014639:Vanadium; D008094:Lithium; D007501:Iron; D008274:Magnesium
keywords: cathode; continuous hydrothermal synthesis; doped LMP; high energy; lithium-ion battery