The AIT research teamwants to be among theleading players worldwide.
Battery research occupies a central position at AIT. The scientists pursue an integratedresearch and development approach – from material optimization and processing to industrialcell prototyping and system design to battery testing in accredited laboratories.
-Model-assisted battery material developmentand -optimisation
-Industry-oriented electrode engineering andcell production
-Comprehensive physicochemical andelectrochemical characterisation (in- and ex-situ methods)
-Accredited electrical, environmental and safetytests on cell, module and system level
-SOX (State of Health, State of Charge etc.)determination
-Simulations in 1 and 3D at cell and system levelincluding ageing
-Cell selection and benchmarking based onextensive battery databases
-Consultancy in all battery-related questions
OUR ANALYTICAL METHODS
-Determination of the size of surfaces by means ofgas adsorption (BET measurement)
-Determination of particle size distributions
-Crystal Structure Analysis (XRD Measurement)
-Scanning electron microscope analyses (SEMmeasurements incl. EDX)
In the H2020 research project eCAIMAN which is co-ordinated by the AIT Austrian Institute of Technology,European competences are combined in order to de-velop an excellent lithium-ion battery for productionin Europe.
In order to be able to rapidly and efficiently improvemodern electrode materials in terms of performanceand energy efficiency, the use of the new multi-scalemodelling method is tested at a microporous level inthe SimPore project in collaboration with the projectpartner VIRTUAL VEHICLE Research Center.
From material production and analysis to screenings and choice of theoptimal battery cell which is supported by simulations through to com-prehensive validation – with the new laboratory, the AIT offers its cus-tomers everything from a single source. In addition, early diagnosis ofbattery ageing can be performed. Post mortem analyses are also partof the service portfolio.
Ex- and in-situ methods or tools can also be used to estimate the sec-ond life of cells. The AIT thus acts as a true one-stop shop for automo-tive suppliers, battery manufacturers, material developers or cell man-ufacturers. With material and process development, the AIT is the onlyinstitute in Austria able to process the entire research chain from mate-rial to cell design through to the system level. With this know-how, AITwants to become one of the leading international players in the field.The focus is on the improvement of lithium-ion technology, for exampleby new electrode materials. But the generation of battery technologiesafter that is also being worked on – even though the lithium-ion batterywill still be the preferred medium over the next 10–15 years. Safety,cost and service life are the central quality criteria of a battery, supple-mented by energy density – the essential measure for the achievablerange of an electric vehicle – as well as power density, upon which ac-celeration, driving speed and charging times depend. Lithium-ion bat-teries score points with a high energy density and a long service life andstill offer a lot of potential despite their level of maturity.
ALTERNATIVE STORAGE TECHNOLOGIES
However, research is not only carried out on the next generation of 5Vlithium storage technology, but also on alternatives to the lithium-ionbattery. These include, among others, the lithium-air and magnesium-ion batteries. With these promising research activities, the AIT createsimportant preconditions for industry which allow an assessment asearly as possible in the development process of whether the materialsused are suitable for high-voltage cells of the future. The battery mate-rial laboratory guarantees the latest comprehensive research in-frastructure from a single source. Increasing service life, efficiency andcapacity of batteries – all this is being examined and optimized by AITscientists. The international AIT network for battery research extendsfrom the German Research Centers (Karlsruhe Institute of Technologyand Fraunhofer Institutes) to co-operations in the UK all the waythrough to Korean and Chinese university and research partners.
CELL PRODUCTION IN THE DRY ROOM
With its laboratory infrastructure, the AIT supports the entry into theelectric era and drives the evolution from the conventional vehicle viavarious hybrid technologies through to the pure e-mobile. In addition,the AIT is working to expand the research infrastructure with a modern,automated research production line with its own dry room. This enablesindustry-oriented prototyping for the production of stacked pouch cells– a major cost factor for the industry partners. Particular attention ispaid to the optimization of each step of the production process.
SPECIALIZED BATTERY TEST LABORATORY
Larger cells (approx. 1 to 100 Ah) and battery systems are examined indetail here. The focus is on electrical, thermal safety and durability tests.These can be combined and thus enable a comprehensive validation.