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WEB Structure and Dynamics in a Layered Na-ion Battery Cathode

Friday (28.02.2020)
13:42 - 13:42 Poster Room
Part of:
- Poster *web*Smoothing of additive manufactured parts using ns-pulsed laser source 1 Dipl.-Ing. Florian Kuisat
- Poster TBA -
- Poster *web*Combustion Synthesis of High Entropy Alloys thin films 1 Dr. Anni Wang
- Poster *web*Surface macro-smoothing and micro-structuring of additive manufactured components by using DLIP technique for controlling wetting characteristics 1 Dipl.-Ing. Florian Kuisat
- Poster *web*Influence of embedding materials on heat transfer and ignition transfer time in heterogeneous reactive material system 1 Mostafa Baloochi
- Poster TBA -
- Poster *web*Self reactive joining process with multilayer foils in lap joint configuration 1 Marcus Glaser
- Poster *web*Thermodynamics and kinetics of phase formation in magnetron-sputtered Ni/Al multilayer thin films with nanoscale morphology 1 Sascha Sebastian Riegler
- Poster *web*Femtosecond laser approach to cut Ni/Al reactive foils without ignition of a self-propagation reaction 1 Maria Amelia Martins
- Poster *web*Effect of preparation angle on atom probe tomography of reactive multilayers 1 Christian Schäfer
- Poster *web*Reactive Ni/Al multilayers with 3D Morphologies 1 Konrad Jaekel
- Poster *web*Synchrotron radiation X-ray powder diffraction and magnetometric study of natural and synthetic terms of the stannite-kesterite pseudobinary system in the low temperature regime (5-275 K) 1 Dr. Francesco Di Benedetto
- Poster *web*Coating and Drying of Sodium-Ion-Battery Electrodes 1 Julian Klemens
- Poster *web*Analytical prediction model for Direct Laser Interference Patterning 1 Dr. Bogdan Voisiat
- Poster *web*CFD Analysis of joining processes using reactive multilayers on native surface morphologies of microelectronic substrates 1 Erik Wiss
- Poster *web*Top-Hat profile in Direct Laser Interference Patterning: Is it worth it? 1 Mikhael El-Khoury
- Poster *web*Laser-based (“2D”) surface treatment of lithium-ion battery electrodes to improve the rate capability 1 Jens Sandherr
- Poster *web*Microstructure investigation of superconducting NbN thin films on copper 1 Dipl.-Ing. Ying Li
- Poster TBA -
- Poster *web*Laser functionalized PEEK-based coating systems to minimize friction and wear 1 Dr. Tim Kunze
- Poster *web*Structure and Dynamics in a Layered Na-ion Battery Cathode 1 Euan Bassey
- Poster *web*Electrode-Processing using porous nano-structured Na3V2(PO4)3 (NVP) for Sodium-Ion Batteries 1 Luca Schneider
- Poster TBA -
- Poster *web*Experimental Approach for Phase Diagram determination of Li alloys 1 Joel Fels
- Poster *web*Process Integration of Few-Layer MoS2 into a-Si:H Heterojunction pin-Photodiodes for extended Infrared Detection 1 Charles Otieno Ogolla
- Poster *web*Ti3SiC2- and Ti3AlC2-based ceramics synthesis by spark plasma sintering of preceramic paper 1 Elizaveta Sedanova
- Poster *web*Overheating microstructural study of nickel-based superalloys from turbine blades of aircraft engines 1 Dr. Ana Pastor
- Poster *web*Electrochemical thermodynamics of Lithium Batteries and their materials 1 Prof. Dr. Hans Jürgen Seifert
- Poster *web*Corrosion Analysis of a 316L Stainless Steel Gas Outlet Sealed with a Copper Ring Used in the CO2 Methanation Process 1 Ananya Prechavut
- Poster *web*Self-propagating reaction of structured reactive Al/Ni multilayers 1 Yesenia Sauni
- Poster *web*3D structured electrodes for Li-ion batteries using open porous metal foams as current collector for high energy application 1 Jonas Oehm
- Poster *web*Novel air stable single source precursor for homogeneous crystalline TiS2 thin films 1 Anja Sutorius
- Poster *web*Synthesis of nickel-copper composite with controllable nanostructure through facile solvent control as positive electrode for high-performance supercapacitors 1 Dr. Damin Lee
- Poster *web*Towards understanding response generation in conductometric gas sensors 1 Stefan Kucharski
- Poster Effects of 3D electrode design on high-energy silicon-graphite anode materials 1 Yijing Zheng

Session -F: Functional Materials, Surfaces, and Devices
Belongs to:
Topic X: Poster Session

Sodium-ion batteries (NIBs) are a significantly cheaper energy storage alternative to lithium-ion batteries and as such will play a vital role in future sustainable grid-based energy storage to meet a rising demand for electricity. To date, the capacity of NIBs is too low for real-world applications and is limited by the cathode, Therefore, new, high-capacity cathodes are required to address the energy storage problem. One of the major limitations to the reversible capacity delivered by layered, transition metal-oxide-based cathodes are capacity losses due to irreversible or kinetically limited phase transformations. To increase the capacity of cathode materials, the mechanism of charge storage and the effects of these phase transformations must be understood in terms of the changes to the crystallographic and electronic structures of the cathode. Among the plethora of layered TM oxides which may be used as NIB cathodes, Mn-based materials have garnered significant interest, owing to the low cost and low toxicity of Mn. However, layered Mn-based NIB cathodes are known to undergo several phase transformations, which leads to significant capacity loss on prolonged cycling, due to the loss and formation of Jahn-Teller-active Mn(III) centres during charge and discharge. One strategy which has proven to be successful at increasing capacity retention is to dope the transition metal layers for species with lower oxidation states, for example Zn(II) and Li(I). In this work, we investigate how the bulk and local structure of a layered, Mg-doped, Mn-based-oxide NIB cathode evolves during charge and discharge. We use operando X-ray diffraction and 23Na NMR to examine the structural changes during charge and discharge. With the aid of hybrid DFT calculations, we have been able to assign the 23Na NMR spectra observed and have rationalised the effect of Na mobility on the observed NMR spectra using variable temperature 23Na NMR.

Euan Bassey
University of Cambridge
Additional Authors:
  • Dr. Philip Reeves
    University of Cambridge
  • Michael Jones
    University of Cambridge
  • Dr. Jeongjae Lee
    Seoul National University
  • Dr. Ieuan Seymour
    University of Texas at Austin
  • Prof. Clare Grey
    University of Cambridge