R&D Symposium 5
Battery Engineering Symposium
Building Better Batteries
30 January 2018 | Congress Centrum Mainz | Mainz, Germany
Today’s leading battery engineers are working to create high-energy, cost-effective, and reliable batteries that fully utilize the battery’s chemistry. To achieve this goal, engineers must consider materials and cell engineering, mechanical, electrical, and thermal design and integration of packs, as well as output, safety, and durability of the key designs.
Battery Engineering will bring together engineering representatives from top OEM companies, the battery supply chain, and top academic institutions to discuss the recent advancements in battery technology. This symposium will encompass both cell and pack engineering and how advancements in these areas are not only building better, but safer and more robust batteries.
Tuesday, 30 January
7:30 Symposium Registration and Morning Coffee
8:30 Chairperson’s Opening Remarks
8:35 Battery Calorimetry of Li-Ion Cells to Prevent Thermal Runaway and Develop Safer Cells
Carlos Ziebert, Ph.D., Head of the Battery Calorimeter Center Thermophysics and Thermodynamics Group, Karlsruhe Institute of Technology
The thermal behaviour of lithium-ion cells and their active materials depends on a large variety of internal and environmental physicochemical parameters, which are still not deeply understood. Additionally, the specific materials design and the use of nanoscale materials influences heat generation and heat dissipation during operation of the electrochemical cells. Therefore, thermal characterization of the cells, batteries and their individual active and passive materials is required in combination with multiscale electrical electrochemical, thermal and thermodynamic modelling to obtain quantitative and reliable thermal and thermodynamic data.
8:55 Deformation in 18650 Li-Ion Cells Observed by Micro X-Ray Computed Tomography
Andreas Pfrang, Ph.D., Scientific Officer, Joint Research Centre, European Commission
Irreversible mechanical deformations were systematically found in 18650 cells with graphite anode, both in failed cells and also in cells that still had a significant remaining capacity. The latter may indicate that the occurrence of such deformations does not necessarily trigger a sudden death of a cell. Nevertheless, being linked to volume variations of the anode, the deformations will increasingly contribute to performance degradation during cycling. Deformations were observed mainly close to the cathode current collector, which suggests that rather small inhomogeneities in the cell structure at beginning of life.
9:15 Safety Testing for xEV Batteries
Michael Geppert, Head of Laboratory, TÜV SÜD Battery Testing GmbH
This presentation will compare various test standards and validation processes, focusing on 1. Comparing test standards and homologation processes in Europe, North America, and China, 2. The lessons learned and future developments, 3. Current examples of safety validation tests, and 4. ECE R 136.
9:35 Presentation to be Announced
10:10 Grand Opening Coffee Break with Exhibit & Poster Viewing
11:00 Chairperson’s Remarks
Volker Hennige, PhD, Head, Global Battery Competence Team, AVL List GmbH
11:05 Multifunctional Battery Housings and Their Helpful Application for Thermal and Mechanical Tasks
Jobst H. Kerspe, Consultant, GVI, König Metall GmbH & Co. KG
Thermal management should be embedded in the battery housing, just to save space and weight and to separate cooling devices from cell chemistry. This also means the housing should provide the right thermal conditions for the battery independent from outside thermal conditions. Moreover, the housing should keep the battery safe under all operating conditions, such as vibrations caused by the driving car, as well as crash conditions.
11:25 Continued Glimpses into xEV Batteries on the Market – AVL Series Battery Benchmarking
Martin Zaversky, Lead Engineer, Battery Benchmarking Program, AVL List GmbH
The Program provides a database for objective comparison in technical attributes as well as in engineering methodology with market competitors for clear system target definition of high performing, reliable and safe batteries. 270 different criteria are evaluated through AVL benchmarking metrics displayed in 8 high level attributes. The found integrated system performance values in cell, mechanical and electrical system are pointed out to support current and future development programs. Example vehicles are the Mitsubishi Outlander, Tesla Model X and Chevrolet Bolt.
11:45 Model Prediction and Optimization: How to Accurately Estimate Power-Limits for Lithium Ion Batteries Using Physics-Based Models and Realistic Constraints
Scott Trimboli, Ph.D., Assistant Professor, College of Engineering & Applied Sciences, University of Colorado, Colorado Springs
Electric vehicle battery management systems must be able to determine, in real time, the power available that may be sourced by the battery pack. Similarly, in rechargeable packs, it is important to determine how much charge power the pack can accept. Such power limits are used to ensure the pack will not suffer damage by exceeding charge or voltage limits or by exceeding a design current or power limit. This paper describes a method that uses a physics-based dynamic cell model and predictive optimization to accurately compute battery-pack available power.
12:05 Talk Title to be Announced
Gaetan Damblac, Battery Solution Manager, CD Adapco
12:25 Dow Solutions for Battery Packs and Control Units Assembly and Cooling
Eric Vanlathem, Ph.D., Senior Application Engineer, Dow Performance Silicones, Dow
Long lasting battery packs require best materials for their assembly. Silicone materials have the proven reputation of keeping their sealing function operational in extreme environments. As thermally conductive, they have the benefit of evacuating heat or bringing in additional heat to maintain the battery packs at best possible working conditions.
13:00 Networking Lunch
14:15 Dessert Refreshment Break with Exhibit & Poster Viewing
15:00 Chairperson’s Remarks
Robert Spotniz, President, Battery Design LLC
15:05 Industrial Viable Water-Based Processing for Ni-Rich NMC Cathodes
Stella Deheryan, Ph.D., Applications Engineer, Emerging Technologies, JSR Micro NV
Lately, although there are strong demands for water-based processing of cathodes in a viewpoint of environmental and economic aspect, most battery makers have produced Ni-rich NMC cathodes by solvent (NMP) systems because the water based slurry of Ni-rich NMC has led to the corrosion of the aluminum foil due to the dissolution of alkaline components from active materials. In this presentation, we would like to introduce the water-based approach with our binder material specially designed for this process; demonstrated to be easy and straightforward, even for Ni-rich cathode materials.
15:45 New Generation of Current Collectors Enhance Battery Performance
Thierry Dagron, Business Development Director, ARMOR Films for Batteries, ARMOR
Things are quite complex at the interface metal-electrode, a lot of chemical, physical and electrochemical phenomena occur: internal resistance increase, corrosion attacks, lack of adhesion, solvent attacks, etc. It is very dependent on the electrochemistry and process, and requires a customized approach. We demonstrate how primed current collectors (Al or Cu foils with a protective and conductive primer) solve these problems. For LFP cells for instance, the internal resistance can be reduced by 40% and the adhesion increased by 70% (peeling strength at 180°).
16:25 Manufacturing of Low-Cost Nano-Coatings for High-Performance Battery Materials
James Trevey, Ph.D., Vice President, Engineering, Forge Nano
As mobility and portability requirements grow, so does the need for higher energy density materials, higher power density systems, and enhanced lifecycles of devices, all of which create additional stresses at interfaces within energy storage modules such as lithium-ion batteries, fuel cells, and supercapacitors. ALD is a means to engineer an energy storage future on an atomic level, and with the newly developed semi-continuous high-throughput ALD production system a viable commercialization path now exists to realize the benefit of ALD on a commercial scale.
17:05 Networking Reception with Exhibit & Poster Viewing (Sponsorship Opportunity Available)
18:05 Close of Symposium