Materials for lithium-sulfur (Li-S) batteries, and electrochemical methods for Li-ion and Li-S batteries. Employed on permanent basis since 2016.
First demonstration of an organic redox mediator for the Li-air battery system.
Liquid crystal-based optical films for transflective LCD applications.
Electrodeposition of polymer electrolytes for 3D Li-ion microbattery applications, under the supervision of Prof John R. Owen.
Specialisations and research projects: Li-ion batteries, electrochemistry, liquid crystals, polymer chemistry.
Reviewer for many of the leading journals in the fields of materials science and electrochemistry. Part of the local organising committee for the 15th International Symposium on Polymer Electrolytes in 2016 and the 1st Organic Battery Days in 2017, both in Uppsala, Sweden.
note: links to pre-/post-prints or final published versions hosted here are given where possible and, to the best of my knowledge, in accordance with the journal publishing agreement. Links to the articles at the journal are given in every case.
 B. Aktekin, M.J. Lacey, T. Nordh, R. Younesi, C. Tengstedt, W. Zipprich, D. Brandell, K. Edström, "Understanding the capacity loss in LNMO-LTO lithium-ion cells
at ambient and elevated temperatures", J. Phys. Chem. C 122 (21), 11234-11248 (2018) [link to journal].
 A. Bergfelt, M.J. Lacey, J. Hedman, D. Brandell, T. Bowden, "ε-caprolactone-based solid polymer electrolytes for lithium ion batteries: synthesis, electrochemical characterization and mechanical stabilization by block copolymerization", RSC Adv. 8, 16716-16725 (2018) [link to journal (open access)].
 J. Mindemark, M.J. Lacey, T. Bowden, D. Brandell, "Beyond PEO – alternative host materials for Li+-conducting solid polymer electrolytes", Prog. Polym. Sci 81, 114-143 (2018) [link to journal]
 M. Ebadi, M.J. Lacey, D. Brandell, C. Moyses Araujo, "Density functional theory modeling the interfacial chemistry of the LiNO3 additive for lithium–sulfur batteries by means of simulated photoelectron spectroscopy", J. Phys. Chem. C 121, 42, 23324-23332 (2017) [link to journal]
 M.J. Lacey, V. Österlund, A. Bergfelt, F. Jeschull, T. Bowden, D. Brandell, "A robust, water-soluble, functional binder system for high energy lithium-sulfur batteries", ChemSusChem 10, 2758-2766 (2017) [link to journal, pre-print, supporting information, raw data]
 M.J. Lacey, "The influence of the electrolyte on the internal resistance of lithium-sulfur batteries studied by an intermittent current interruption method", ChemElectroChem 4, 8, 1997-2004 (2017) [link to journal, pre-print, supporting information]
 S. Srivastav, M.J. Lacey, D. Brandell, "State-of-charge indication in Li-ion batteries by simulated impedance spectroscopy", J. Applied Electrochem. 47, 2, 229-236 (2017) [link to journal]
 F. Jeschull, F. Lindgren, M.J. Lacey, F. Björefors, K. Edström, D. Brandell, “Influence of inactive electrode components on degradation phenomena in nano-Si electrodes for Li-ion batteries”, J. Power Sources 325, 513-524 (2016) [link to journal]
 M.J. Lacey, A. Yalamanchili, J. Maibach, C. Tengstedt, K. Edström, D. Brandell, “The Li-S battery: an investigation of redox shuttle and self-discharge behaviour with LiNO3-containing electrolytes”, RSC Advances 6, 3632-3641 (2016) [link to journal, published version, supporting information]
 A. Lundgren, S. Munktell, M.J. Lacey, M. Berglin, F. Björefors, “Formation of gold nanoparticle size and density gradients by bipolar electrochemistry”, ChemElectroChem 3 (3), 378-382 (2016) [link to journal]
 F. Jeschull, D. Brandell, K. Edström, M.J. Lacey, “A stable graphite negative electrode for the lithium-sulfur battery”, Chem. Commun. 51, 17100-17103 (2015) [link to journal, post-print, supporting information]
 M.J. Lacey, K. Edström, D. Brandell, “Visualising the problems with balancing lithium-sulfur batteries by “mapping” internal resistance”, Chem. Commun. 51, 16502-16505 (2015) [link to journal, post-print, supporting information]
 F. Jeschull, M.J. Lacey, D. Brandell, “Functional binders as graphite exfoliation suppressants in aggressive electrolytes for lithium-ion batteries”, Electrochimica Acta 175, 141-150 (2015) [link to journal]
 M.J. Lacey, F. Jeschull, K. Edström, D. Brandell, “Porosity blocking in highly porous carbon black by PVdF binder and its implications for the Li-S system”, J. Phys. Chem. C. 118 (45), 25890-25898 (2014) [link to journal]
 M.J. Lacey, K. Edström, D. Brandell, “Analysis of soluble intermediates in the lithium-sulfur battery by a simple in situ electrochemical probe”, Electrochem. Comm. 46, 91-93 (2014) [link to journal, post-print]
 B. Sun, D. Rehnlund, M.J. Lacey, D. Brandell, “Electrodeposition of thin poly(propylene glycol) acrylate electrolytes on 3D-nanopillar electrodes”, Electrochimica Acta 137, 320-327 (2014) [link to journal]
 A.W. Lodge, M.J. Lacey, M. Fitt, N. Garcia-Araez, J.R.Owen, “Critical appraisal on the role of catalysts for the oxygen reduction reaction in lithium-oxygen batteries”, Electrochimica Acta 140, 168-173 (2014) [link to journal]
 M.J. Lacey, F. Jeschull, K. Edström, D. Brandell, “Functional, water-soluble binders for improved capacity and stability of Li-S batteries”, J. Power Sources 264C, 8-14 (2014) [link to journal, post-print]
 M.J. Lacey, M. Sosna, J.R. Owen, “An electrochemical quartz crystal microbalance study of poly(acrylonitrile) deposition initiated by electrogenerated superoxide”, Electrochimica Acta 96, 23-26 (2013) [link to journal, post-print, backstory]
 M.R. Roberts et al, “3D lithium-ion batteries – From fundamentals to fabrication”, J. Mater. Chem. 21, 9876-9890 (2011) [link to journal]
 A. Brewer, M.J. Lacey, J.R. Owen, I.Nandhakumar, E. Stulz, “Supramolecular hetero-porphyrin SWNT complexes”, J. Porphyrin Phthalocyanines 15 (4), 257-263 (2011) [link to journal]
 G. El-Enany, M.J. Lacey, P.A. Johns, J.R. Owen, “In situ growth of polymer electrolytes on lithium ion electrode surfaces”, Electrochem. Comm. 11 (12), 2320-2323 (2009) [link to journal]
Available via the University of Southampton institutional repository.