New research led by WMG, at the University of Warwick has found an effective approach to replacing graphite in the anodes of lithium-ion batteries using silicon, by reinforcing the anode’s structure with graphene girders. This could more than double the life of rechargeable lithium-ion based batteries by greatly extending the operating lifetime of the electrode, and also increase the capacity delivered by those batteries.
How lithium-ion (Li-ion) batteries behave under short-circuit conditions can now be examined, using a new approach to help improve reliability and safety - developed by an international research team, including WMG at the University of Warwick.
The use of high energy density Li-ion batteries is ubiquitous – from powering portable electronics to providing grid-scale storage – but defects can lead to overheating and explosions.
Although catastrophic failure is extremely rare, recent high-profile cases including the recall of Samsung’s Galaxy Note 7 smartphone line and the grounding of an aircraft fleet highlight why it’s important to understand battery failure.
Romeo Malik, a researcher at WMG, explained the experiment:
“As the safety and reliability of batteries is paramount, it is important to know and understand the extreme scenarios of battery failure.
“In this work, we were able to see the initiation of thermal runway and how quickly it escalated to the neighbouring cells in seconds. Being able to observe and capture these rapid failures with high-speed X-ray imaging technique is amazing.”
WMG at the University of Warwick are delighted to be part of a £19.4m project to support the development of next-generation electric vehicle batteries in the UK, funded through the Advanced Propulsion Centre (APC UK Ltd).
The funding will support leading edge manufacturing research focussed around Nissan's Sunderland battery manufacturing plant - the largest full scale automotive Li-ion battery manufacturing facility in Europe. WMG researchers will play a key role in helping Nissan take forward this opportunity and will receive £1m for the research.
The consortium led by Nissan with WMG at the University of Warwick, Hyperdrive, Newcastle University, and Zero Carbon Futures (ZCF), will bring together engineers, researchers, new technology and existing facilities, assets and knowledge to create and prove new and improved manufacturing processes for the next generation of automotive batteries.
WMG has particular skills around battery chemistry and the manufacturing processes used to scale this up to high volume production. WMG role in the project will be to investigate potential improvements to battery chemistry and increasing manufacturing yield, and to optimise automated manufacturing processes to enable Nissan to remain at the forefront of electric vehicle technology.
The continued success and growth of WMG, at the University of Warwick, now means that it is seeking to hire 120 new recruits over the next 100 days.
WMG is a leading centre for world class education and applied research in many sectors including: automotive, aerospace and defence, business, construction, energy and utilities, IT, security and rail. They have recently won funding for several major research projects and partnerships that builds on our large array of collaborations with new and established partners.
As we continue to grow and expand we are seeking individuals who thrive on a challenge and who aren’t afraid to defy conventional thinking. We are investing in, and creating, several new world-leading facilities to support these new projects. So we also need to invest in more talented people to take these projects forward and we will intend to recruit 120 of those people in the next 100 days.”
The 2nd annual WMG Doctoral Research and Innovation Conference, entitled ‘Innovation through Collaboration’, is an excellent opportunity to showcase research from both academia and industry across themes in design, materials, manufacturing, systems and business transformation.
Organised by doctoral students, the conference will be held in the International Digital Laboratory on 30th June - 1st July, with an evening social event on the 30th.
Papers and poster presentations will take place across a wide variety of topics and awards will be presented in each theme.
Abstracts should be submitted online by 31st March.
More used to testing batteries for transport, including cars, trains and motorsport as it’s Christmas experts were more than happy to help reporter, Anita Rani with a scientific test to understand how a range of different AA batteries available on the high street might perform. The tests were carried out in WMG’s Energy Innovation Centre using the battery characterisation laboratory and part of the £13m Battery Materials Scale-Up Pilot Line.
Mark Amor-Segan, Principal Engineer and Shane Beattie, Technical Manager, for the Battery Scale-up Facility, conducted blind scientific tests on 16 different AA batteries. The batteries came from three different battery chemistry families: i) zinc-chloride, ii) alkaline and iii) lithium. All 16 batteries were tested at a constant current of 500 mA down to 1.1 V. The voltage profile was recorded using a highly accurate battery cycler. All batteries were kept at 20 degrees using a thermal chamber to provide a controlled test environment. For The One Show viewers Anita came armed with 16 toy puppies and fitted each with the 16 different types of batteries. Keeping the puppies in a 20 degree room, the same temperature used to test the batteries, and watched over by a researcher, they were set off to see which would last the longest.
On Tuesday 25 June, Drayson Racing’s lightweight electric racing car set a new world land speed record for an electric vehicle. The Lola B12/EV hit a maximum speed of 204.2mph (328.6kph) in its attempt at RAF Elvington in Yorkshire, breaking the previous record of 175mph which was set in 1974.
Over the last 6 months, WMG has worked with Drayson Racing on the car’s development, drawing on WMG’s expertise in sustainable materials and energy management.
WMG researchers developed recycled carbon fibre panels which were used on the Drayson car, research which was the result of a WMG EPSRC Challenging Engineering grant. Through WMG’s Energy Innovation Centre, testing and characterisation work was carried out on the vehicle’s electric motor to enable the maximum power possible to be achieved. This helped to contribute to the success of the Drayson racing vehicle.
WMG's Professor Sridhar Seetharaman has been selected as the recipient of the Jerry Silver Award for Best Paper 2013 by the Association for Iron and Steel Technology (AIST) Metallurgy Technology Division. The award is for Professor Seetharaman's work entitled 'Effect of Silicon on Hot Shortness'.
The Jerry Silver Award is presented to the author of a process metallurgy or product applications technical paper judged to be the best of class by the AIST, where one of the authors is a student.
Professor Seetharaman has recently joined WMG as the RAEng / Tata Steel Research Chair in Low Carbon Materials Technologies.
The award will be presented to Professor Seetharaman during the AIST Metallurgy, Processing, Products and Applications Technology Committee Meeting in Canada, later this year.
WMG is looking to make a number of key academic appointments across its full range of research activities in Digital Technologies, Materials and Manufacturing and Operations and Business Management, in order to enhance and expand its capabilities in these developing areas.
The new posts cover a range of research, teaching and knowledge transfer activities, working with partners in diverse business sectors such as automotive, aerospace and defence, digital, healthcare, finance, energy and pharmaceuticals.
The Group are currently looking for world class individuals who want to make a real impact in their field. The following roles are available:
- Jaguar Land Rover Chair in Simulation of Complex Hybrid and Electric Powertrain Systems
- Royal Academy of Engineering / TATA Steel Research Chair in Low Carbon Materials Technologies
- Professor of Innovative Manufacturing
- Professor of Cyber Security
- Associate Professor in Service Systems
- Associate / Assistant Professor in Tropical Diagnostics (in collaboration with the Liverpool School of Tropical Medicine)
Other key academic positions in Cyber Security, Digital Product Lifecycle Management, Hybrid and Electric Vehicles and Nanocomposites will also be announced shortly.
Technology company add2 Ltd have been awarded a prestigious Lord Stafford Award for work based on a close research relationship with WMG at the University of Warwick.
Midlands based add2 Ltd, won the Innovation Achieved award for their work with JLR and WMG on technology to improve testing techniques which will be vital in the development of robust electrical systems for current and future vehicles e.g. hybrid technology in premium vehicles.