BATTERY TECHNOLOGIES

BATTERY TECHNOLOGIES Electrochemical energy storage devices play a key role for the AIT Austrian Institute of Technology with efforts being made to make them safer, more efficient, powerful and cost-effective.

The scientists at AIT are pursuing a holistic research and development approach that improves the key performance indicators of the battery and its integration into the vehicle. The development process covers the whole value chain – from synthesis of advanced battery materials, through electrode and cell manufacturing, battery testing, diagnostic and simulation, up to post-mortem analysis.

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PORTFOLIO

• Model-assisted battery material development and optimization

• Industry-oriented electrode engineering and cell manufacturing

• Comprehensive physico-chemical and electrochemical characterization (in- and ex-situ methods)

• Accredited electrical, environmental and safety tests at cell, module and battery pack level

• SoX determination (State of Health, State of Charge, etc.)

• 1D- and 3D-simulation at cell and system level including ageing

• Cell selection and benchmarking according to customer requirements

• Post-mortem analysis

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Battery Test Laboratory

AIT researchers at the Battery Test Laboratory are specialized in both perfor-mance validation and safety tests. A variety of tests is carried out - from electrical, through calendar and cycle ageing (from cells to system) up to safety and customized tests. Customer-oriented solutions are our approach to meet market requirements. Comprehensive validation is performed through a combination of ISO and IEC accredited tests and services.

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Portfolio• Performance tests from cell up to system

level• Ageing tests & models

- calendar & cycle ageing - thermoelectrical simulation

• Real driving profiles• Safety & abuse tests:

- thermal - mechanical - electrical - gas analysis (optional)

• Post-mortem analyses - cell disassembly - physico-chemical characterization

Accreditations: IEC 62660-1,2IEC 62133IEC 62281ISO 12405-1,2UN38.3

Abuse Tests for Batteries

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Thermal• Thermal stability• External fire• Storage at elevated temperature• Thermal cycling

Mechanical• Internal short circuit / nail penetration• Controlled crush• Drop• Corrosive environment / dust• Altitude simulation• Vibration / shock

Electrical• Overcharge• Overdischarge / voltage reversal

• External short circuit (Rs ≤ 137 μΩ, 20 kA)

• Fast charge / discharge

Data Acquisiton• Up to 20 kHz• Up to 40 temperature sensors• Video (HFR 420 fps)• Thermography

Optional• Gas quantity measurement at cell and

module level• Gas analysis for small cells• Spark ignition source• Post-mortem analysis

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Cell Level 72 channelsVoltage:Current:Current:Parallel:

Modes:

96 channelsVoltage:Current 1:

Current 2:Current 3:

Current 4:Modes:

4 channels Impedance SpectroscopyVoltage:Current:Modes:Frequency:

Electrical Tests for Batteries

Module Level3 test benchesVoltage:Current:

Modes:

System Level2 test benchesVoltage:Current:

Modes:

All test equipment can be combined with climatic chambers and protective atmo-sphere.

0.7 V – 5.5 V100 A charge / 1 A - 100 A10 A charge / 0.1 A - 10 Aup to 12 channels in parallel for max. discharge current of 1440 ACC, CV, CP and dynamic load profiles

0 – 6 V (± 0.02% FS)- 150 μA to +150 μA (±0.01% FS)-5 mA to +5 mA (±0.01% FS)-150 mA to +150 mA (±0.01% FS)-5 A to +5 A (±0.01% FS)CC, CV, CP, dynamic load profiles

0 – 20 V / ± 10 V0 – 2 A (1 channel 20 A)PEIS / GEIS10 μHz – 30 kHz

0 – 60 V / 120 V500 A charge / 750 A dischargeCC, CV, CP and dynamic load profiles

0 – 600 V / 1200 V192 A charge / 540 A dischargeCC, CV, CP and dynamic load profiles

Battery Materials Laboratory

Specially equipped facilities for the synthesis, analysis and validation of material in small-sized cells open the door to comprehensive battery materials research. The focus is primarily on the development of high-performance cathodes and high-energy anode materials as well as on the optimisation of known cell chemistries. The scale up to prototype pouch cells of up to 10 Ah brings fundamental research closer to industrial production and bridges the gap between academia and industry. The characterization of materials from customers and project partners completes our portfolio.

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Portfolio• Particle size distribution by means of X-ray

diffraction and / or laser diffraction or laser scattering

• Scanning Electron Microscopy (SEM), SEM-EDX

• Material evaluation in coin and pouch cells from 1 mAh up to 10 Ah

• Electrochemical analysis in 2-, 3- electrodes cell configuration

• Moisture content determination in electrolytes (Karl-Fischer-titration)

• Fourier Transformed Infrared Spectroscopy / Attenuated Total Reflection (FTIR / ATR)

• Gas Chromatography / Mass Spectrometry (GC / MS)

Accredited Methods (ISO, IEC):• Thermal analysis (TGA and DTA

measurement, Accelerating Rate Calorimeter, ARC)

• Elemental analysis (X-Ray Fluorescence, XRF)

• Crystal Structure Analysis (X-Ray Diffrac-tion, XRD)

• Specific surface area measurements by means of gas adsorption (BET)

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Cell Production and Research Pilot Line

A dry room with a state-of-the-art research pilot line for pouch cell manufacturing (up to 10 Ah) enables prototyping of lithium ion cells close to industrial production. Particular focus is put on the optimization of each production step as well as innovative cell design and all its components. Industrially relevant research and test activities can thus be carried out at reduced cost and minimize capital investment risk for industrial partners.

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Portfolio• Electrode design and slurry development

for scale up processes• Electrode coating and calendering• Pouch cell manufacturing with up to

10 Ah capacity per cell• Prototype manufacturing in a dry room

(dew point down to -60 °C)• Cell component validation• Automatic electrode stacking and

electrolyte filling• Next generation smart cell design with

integrated sensors

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AIT AUSTRIAN INSTITUTE OF TECHNOLOGY GMBHCenter for Low-Emission TransportGiefinggasse 2 | 1210 Vienna, Austriawww.ait.ac.at

Dr.in Corina TäubertSenior Scientist T +43 50550 - 6235 | F +43 50550 - 6595corina.taeubert@ait.ac.at

Juliane ThoßMarketing and CommunicationsT +43 50550 - 6322 | F +43 50550 - 6642juliane.thoss@ait.ac.at