Review Article
Cation-disordered rocksalt transition metal oxides and oxyfluorides for high energy lithium-ion cathodes
Cation-disordered rocksalt oxides and oxyfluorides are promising high energy density lithium-ion cathodes, yet require a detailed understanding of the impact of disorder and short-range order on the structural and electrochemical properties.
New insights into aging in LiNiO2 cathodes from high resolution paramagnetic NMR spectroscopy
Heterogeneity develops in LiNiO2 upon long-term cycling. The structure and composition of partially electrochemically active (fatigued) phases formed in the bulk are determined by combining synchrotron XRD and high resolution 7Li solid-state NMR.
Synthetic control of structure and conduction properties in Na–Y–Zr–Cl solid electrolytes
In this study, the relationship between structure, cation disorder and Na-ion conduction properties is elucidated in a series of Na3−xY1−xZrxCl6 solid electrolytes.
Optimum in ligand density for conductivity in polymer electrolytes
Optimization of Li+ conductivity relies on a balance between ligand presence and the ability of the chains to rearrange locally to facilitate transport.
Probing reaction processes and reversibility in Earth-abundant Na3FeF6 for Na-ion batteries
By correlating the observed capacity with the amount NaF identified through 23Na NMR, we have unambiguously shown that Na3FeF6 undergoes conversion to NaF and Fe, despite the metastability of the newly formed Fe nanoparticles.
Ab initio computation for solid-state 31P NMR of inorganic phosphates: revisiting X-ray structures
The complete 31P NMR chemical shift tensors for 22 inorganic phosphates obtained from ab initio computation are found to correspond closely to experimentally obtained parameters. The cases where correspondence is significantly improved upon geometry optimization point to the crystal structures requiring correction.
Paper
Design principles for high transition metal capacity in disordered rocksalt Li-ion cathodes
Design rules for high capacity disordered rocksalt Li-ion cathodes applied to the Li–Mn–V–O–F system.
Paper
Structurally stable Mg-doped P2-Na2/3Mn1−yMgyO2 sodium-ion battery cathodes with high rate performance: insights from electrochemical, NMR and diffraction studies
Mg substitution of a (sustainable) sodium-ion battery positive electrode material results in faster Na-ion motion and fewer structural changes on cycling.
Characterising local environments in high energy density Li-ion battery cathodes: a combined NMR and first principles study of LiFexCo1−xPO4
DFT calculations are used to assign and rationalise the local environments in the 31P NMR spectra of LiFexCo1−xPO4.
About this collection
The Journal of Materials Chemistry annual lectureship, established in 2010, honours early-career scientists who have made a significant contribution to the field of materials chemistry.
We are pleased to award Dr Raphaële Clément (University of California, Santa Barbara, United States) the 2024 Journal of Materials Chemistry Lectureship. To celebrate, we have collated some of her publications in Royal Society of Chemistry journals in this web collection.
Dr Raphaële Clément is an Associate Professor in the Materials Department at UC Santa Barbara. She received her Ph.D. in Chemistry in 2016 from the University of Cambridge, working under the supervision of Prof. Dame Clare Grey. She then joined the group of Prof. Gerbrand Ceder as a postdoc at UC Berkeley. Since 2018, the Clément group at UC Santa Barbara is interested in establishing materials design rules, and in optimizing materials processing approaches to advance electrochemical energy storage. The group’s expertise lies in the development and deployment of magnetic resonance and magnetometry techniques (experimental and computational) for the study of battery materials and beyond, with an emphasis on real-time, operando analysis. Raphaële’s recent awards include an NSF CAREER Award, a 2024 Camille Dreyfus Teacher-Scholar Award, the IBA Early Career Researcher Award from the International Battery Association, as well as the Battery Division Early Career Award from the Electrochemical Society. She is a Topical Editor for ACS Energy Letters.
Why not also check out our collection celebrating the 2024 Journal of Materials Chemistry Lectureship runners-up: Maxx Arguilla and Phillip Milner