A5078006466- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Carbon Nanotubes in Composites
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Cultural Heritage Materials Analysis
- Graphene research and applications
- Nanotechnology research and applications
- Archaeology and ancient environmental studies
- Cellular and Composite Structures
- Smart Materials for Construction
- Methane Hydrates and Related Phenomena
- Force Microscopy Techniques and Applications
- Atmospheric and Environmental Gas Dynamics
- Building materials and conservation
- Mechanical stress and fatigue analysis
- Electron and X-Ray Spectroscopy Techniques
- Advanced Battery Materials and Technologies
- Carbon Dioxide Capture Technologies
- Fiber-reinforced polymer composites
- Conservation Techniques and Studies
- Aluminum Alloys Composites Properties
- Dyeing and Modifying Textile Fibers
University of Cambridge
2018-2025
The Faraday Institution
2021-2023
Transitioning to electrified transport requires improvements in sustainability, energy density, power lifetime, and approved the cost of lithium-ion batteries, with significant opportunities remaining development next-generation cathodes. This presents a highly complex, multiparameter optimization challenge, where developments cathode chemical design discovery, theoretical experimental understanding, structural morphological control, synthetic approaches, reduction strategies can deliver...
The mechanical and electrical properties of a direct-spun carbon nanotube mat are measured. comprises an interlinked random network bundles, with approximately 40 nanotubes in bundle. A small degree in-plane anisotropy is observed. bundles occasionally branch, the mesh topology resembles 2D lattice nodal connectivity slightly below 4. macroscopic tensile response elasto-plastic nature, significant orientation hardening. In-situ microscopy reveals that do not slide past each other at their...
An experimental protocol is developed to measure the shear strength of NMC811 single crystals within cathode a lithium-ion cell. The placed upon set thick metallic substrates that possess wide range indentation hardness. For each choice substrate, top surface indented by Vickers indenter sufficient depth layer subjected an approximately spatially uniform compressive normal traction equal hardness substrate. sensitivity plastic flow and fracture substrate determined observation particles in...
The growth kinetics of carbon nanotubes (CNTs) and precursor pyrolysis mechanisms within floating catalyst chemical vapor deposition (FCCVD) reactors have remained opaque despite significant interest in the catalytic mechanisms, CNT growth, aerogel formation. This study utilizes situ characterization reactants CNTs to determine kinetics. By modulating precursors, we avoid formation a reactor, which enables direct sampling at independent axial locations single agglomerated nanoparticles....
A constrained compression test is developed to replicate the mechanical state of a lithium filament within solid battery. Lithium microspheres are compressed between parallel quartz plates into pancake shape thickness on order 15 µm. Full adhesion with no slip exists and platens, attendant constraint implies that average pressure pancake-shaped specimens increases increasing aspect ratio radius height. In addition constraint, thickness-dependent size effect observed whereby apparent flow...
Abstract Fracture of cathode secondary particles is a critical degradation mechanism in lithium‐ion batteries. The microindentation strength LiNi 0.8 Mn 0.1 Co O 2 measured situ the scanning electron microscope (SEM), enabling dynamical imaging fracture. Crack propagation intergranular between primary when induced by compressing flat platens (analogous to calendaring), and with cono‐spherical indenter (representing particle‐particle contact). occurs directly beneath tip at centre compressed...
Abstract Methane, a potent greenhouse gas, is significant contributor to global warming, with future increases in its abundance potentially leading an increase of more than 1 ∘ C by 2050 beyond other gases if left unaddressed. To remain within the crucial target limiting warming 1.5 C, it imperative evaluate potential methane removal techniques. This study presents scoping analysis different catalytic technologies (thermal, photochemical and electrochemical) materials limitations energy...
Scaling up the processing of electrodes for lithium-ion batteries remains a challenge novel cathode materials because optimum formulation de- pends on chemistry and morphology material. The molecu- lar weight binder can be used to adjust rheological properties resulting slurry, affecting microstructure formed electrode. Here, molecular polyvinylidene fluoride (PVDF) is system- atically varied from 180–1,300 kg mol−1 series slurries com- prising LiNi0.8Mn0.1Co0.1O2 (NMC) secondary particles...
The measured capacitance, modulus and strength of carbon nanotube-polyaniline (CNT-PANI) composite electrodes render them promising candidates for structural energy storage devices. Here, CNT-PANI are manufactured with electrodeposition PANI onto the bundle network CNT mats produced via a floating catalyst chemical vapour deposition process. comprises 0% to 30% by volume electrode. composition, modulus, capacitance is in initial state, after first charge, 1000 charge/discharge cycles....