Imperial College London

DrGregoryOffer

Faculty of EngineeringDepartment of Mechanical Engineering

Reader in Mechanical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 7072gregory.offer Website

 
 
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Location

 

720City and Guilds BuildingSouth Kensington Campus

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Summary

 

Summary

Electrochemical Science & Engineering 

I am based in the Department of Mechanical Engineering and my research is based around fuel cell, battery and supercapacitor technology, and their application, mostly in transport. From the fundamental science to integration and systems engineering. The problems I investigate tend to emerge at the interface between the science and engineering. When a problem emerges in an application, to understand it better it is often necessary to drill back down again into the science, but always in the context of the application. I also have a personal Blog

Recent Nature Comment Paper on how the majority of the battery industry could make better lithium ion batteries.

Presentations and Video Clips

The Cell Cooling Coefficient
Understanding Lithium Ion Battery Degradation
Innovation and Batteries
Electrification of Vehicle Powertrains
Revolutionising Transport
Which will be the winner? Batteries, Fuel Cells or Biofuels.

Selected Publications

Journal Articles

Offer G, Patel Y, Hales A, et al., 2020, Cool metric for lithium-ion batteries could spur progress, Nature, Vol:582, ISSN:0028-0836, Pages:485-487

Zhao Y, Diaz LB, Patel Y, et al., 2019, How to cool lithium ion batteries: optimising cell design using a thermally coupled model, Journal of the Electrochemical Society, Vol:166, ISSN:0013-4651, Pages:A2849-A2859

Hales A, Diaz LB, Marzook MW, et al., 2019, The cell cooling coefficient: A standard to define heatrejection from lithium-ion batteries, Journal of the Electrochemical Society, Vol:166, ISSN:0013-4651, Pages:A2383-A2395

Zhao Y, Patel Y, Hunt IA, et al., 2017, Preventing lithium ion battery failure during high temperatures by externally applied compression, Journal of Energy Storage, Vol:13, Pages:296-303

Hunt I, Zhao Y, Patel Y, et al., 2016, Surface Cooling Causes Accelerated Degradation Compared to Tab Cooling for Lithium-Ion Pouch Cells, Journal of the Electrochemical Society, Vol:163, ISSN:0013-4651, Pages:A1846-A1852

srbik, marinescu, martinez-botas, et al., 2016, A physically meaningful equivalent circuit network model of a lithium-ion battery accounting for local electrochemical and thermal behaviour, variable double layer capacitance and degradation, Journal of Power Sources, Vol:325, ISSN:1873-2755, Pages:171-184

Wu B, Merla Y, Yufit V, et al., 2016, Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries, Journal of Power Sources, Vol:307, ISSN:1873-2755, Pages:308-319

Finegan DP, Scheel M, Robinson JB, et al., 2015, In-operando high-speed tomography of lithium-ion batteries during thermal runaway, Nature Communications, Vol:6, ISSN:2041-1723

Wu B, Yufit V, Merla Y, et al., 2015, Differential thermal voltammetry for tracking of degradation in lithium-ion batteries, Journal of Power Sources, Vol:273, ISSN:1873-2755, Pages:495-501

Offer GJ, 2015, Automated vehicles and electrification of transport, Energy & Environmental Science, Vol:8, ISSN:1754-5692, Pages:26-30

Duboviks V, Maher RC, Kishimoto M, et al., 2014, A Raman spectroscopic study of the carbon deposition mechanism on Ni/CGO electrodes during CO/CO2 electrolysis, Physical Chemistry Chemical Physics, Vol:16, ISSN:1463-9076, Pages:13063-13068

Howey DA, Mitcheson PD, Yufit V, et al., 2014, Online Measurement of Battery Impedance Using Motor Controller Excitation, IEEE Transactions on Vehicular Technology, Vol:63, ISSN:0018-9545, Pages:2557-2566

Tariq F, Yufit V, Eastwood DS, et al., 2014, In-Operando X-ray Tomography Study of Lithiation Induced Delamination of Si Based Anodes for Lithium-Ion Batteries, Electrochemistry Letters, Vol:3

Brightman E, Maher R, Offer GJ, et al., 2012, Designing a miniaturised heated stage for in situ optical measurements of solid oxide fuel cell electrode surfaces, and probing the oxidation of solid oxide fuel cell anodes using in situ Raman spectroscopy, Review of Scientific Instruments, Vol:83, ISSN:0034-6748

Offer GJ, Yufit V, Howey DA, et al., 2012, Module design and fault diagnosis in electric vehicle batteries, Journal of Power Sources

Contestabile M, Offer GJ, Slade R, et al., 2011, Battery electric vehicles, hydrogen fuel cells and biofuels. Which will be the winner?, Energy and Environmental Science, Vol:10, Pages:3754-3772

Kucernak AR, Offer GJ, 2008, The role of adsorbed hydroxyl species in the electrocatalytic carbon monoxide oxidation reaction on platinum, Physical Chemistry Chemical Physics, Vol:10, ISSN:1463-9076, Pages:3699-3711

More Publications