AABTAM Symposium
Advanced Automotive Battery Technology, Application and Market
Wednesday, June 20 to Friday June 22, 2012
AABC Europe 2012. AABTAM Symposium: Advanced Automotive Battery Technology, Application and Market - Session 3
Session 3:
Advances in Battery Performance for Hybrid and Electric Vehicles In this session, major automakers as well as Li-Ion cell and pack developers will discuss various cell and pack designs and performance for each of the x-EV architectures with emphasis on life, safety, and cost-performance trade-offs.
Session Chairman:
Matthias Ullrich, Manager Advanced Battery Technology, Volkswagen AG
Dr. Ullrich manages advanced battery technology at Volkswagen AG where he is in charge of the predevelopment of battery technology and development of battery modular concepts with a focus on management system, safety, and life. From 1994 to 2000 he was with VARTA where he worked on lithium ion cells development and automotive battery systems.
SESSION AGENDA
- XEV Battery Technology Status and Trends
Menahem Anderman, President, Advanced Automotive Batteries
The presentation will review current cell and battery technology for hybrid and electric vehicles and discuss the likely technological roadmap as follows:
- Cell chemistry
- Cell configuration
- Cell size
- Energy and power output
- Packs versus cells
The presentation will then discuss key performance and commercial attributes including:
- Calendar and cycle life
- Safety
- Cost versus price
- Producers
- HEV, PHEV and EV Battery Market Forecast
Close Abstract
- Battery System of Opel Ampera and Chevrolet VOLT: Validation and Field Experience
Roland Matthé, Technical Fellow Global Battery Systems & Manager Electrification Architecture, Adam Opel AG, General Motors Europe Engineering
The extended range electric vehicles Opel Ampera and Chevrolet VOLT use GM’s VOLTec Lithium-Ion battery system. First production vehicles had been delivered to customers in December 2010 in the North America and one year later in Europe. Vehicles in Europe, North America and Dubai are equipped with data loggers provide valuable information on battery performance in real world. Since 2008 many battery systems have been operated in GM’S battery system lab under representative cycling conditions. All packs demonstrated good capacity and resistance performance over energy throughput representing more than a typical vehicle life driving distance.
- Concept of the extended range electric vehicle and
- VOLTec battery system architecture and design
- Pack Lifecycle tests:
- Test profile: Load and temperature
- Regional differences
- Capacity and resistance
- Accelerated testing
- Energy throughput equivalent to more than 320,000 km per sample
- Battery system durability and reliability:
- Consistent robust cells
- Pack integration
- Automotive OEM processes lead to robust electronics
- Service concept and experience
- Field experience: Range of customer usage and effect on the EREV battery system
- Vehicle data recording within GM Test vehicles
- Europe, NA, Middle east
- Customer usage pattern
- Battery load based on road vehicle data
- Model verification: Road to Lab to Model
- Summary:
- Extended range electric vehicles Opel Ampera and Chevrolet Volt are vehicles used every day and everywhere by customers and enable successful substitution of petroleum based fuel.
- Battery system validation demonstrate compliance with requirements
Close Abstract
- Large Li-Ion Mechanical Cell Design Trade-offs for Best Performance, Manufacturability, and Reliability
Anthony Wong, V.P. of Business Development & V.P. of EV Engineering, ATL
Future “vehicle electrification” is one of the major environment initiatives in many countries and regions. Lithium-ion batteries (LIB) will play an important energy storage role in this emerging market. Different geographic regions have different impetus in this space, from green-house gas, new energy innovation, stimulation of local economy, oil-dependency, carbon trading, to geo-political spins. Can the LIB industry reduce EV battery system complexity and contribute towards cost-down strategy? This presentation will focus on larger format lithium-ion batteries for EV segment: (1) the comparison of present LIB technology, cell formats and their mechanical designs, (2) the challenges in developing larger format LIB, and (3) the importance of developing an industry-wide LIB holistic system approach in order to achieve sustainable LIB industrialization for the EV segment. Drawing an analogy from the IEEE LIB battery safety standards for consumer electronics industry, both the LIB industry and the auto industry could learn and benefit greatly in enhancing EV LIB battery reliability.
Close Abstract
- Paving the Way for Large-Format Li-Ion Technology Made in Germany
Henrik Hahn, Managing Director, Evonik Litarion GmbH
The European challenge to shrink the carbon footprint is a key topic affecting the transport sector. Closely connected to this trend advanced materials and production technologies for large scale lithium ion battery cells have the potential to open up a fast growing market.
The speed of innovation and business growth could benefit from the set-up of vertical cooperation and integration along the value chain. Jointly together Evonik Litarion GmbH and Li-Tec Battery GmbH, the latter a joint venture of Evonik Industries AG and Daimler AG, drive forward the mass production of large format lithium ion cells for automotive and industrial applications. This presentation outlines latest process technology and engineering methodology to develop and produce key chemical cell components for large scale highly efficient lithium-ion battery cells. This refers to high energy Nickel-Manganese-Cobalt and artificial graphite based electrodes under the brand LITARION® and the SEPARION® ceramic separator.
- Drivers for large format lithium ion technology
- Urbanization and energy turnaround
- New mobility concepts based on alternative powertrains
- Lithium ion battery essentials
- Cell design for large format batteries
- Internal cell chemistry
- Production technology and industrialization
- From mass customization towards series production
- Integrated manufacturing approach along the value chain
- Lessons learned
- Importance of chemistry as a whole
- Benefits from R&D development alliances
Close Abstract
- Cost of EV Battery Systems - Key Factors and Trends
Alexander Reitzle, Senior Engineer, Platform validation, SB LiMotive Germany GmbH
Since a while there is an intensive discussion on the technical challenges that must be met for a successful launch of the electrification of the automotive power train. But the technical challenges are only second-rate if the end customer who buys a new car does not accept this technology due to high purchasing prices and therefore anticipates an area-wide proliferation of EVs.
This presentation focuses on the main cost drivers for the development and the manufacturing of EV battery systems, possibilities for future cost reduction are presented. All contents presented here may not only be applied to EVs, they also can be consigned to PHEVs or HEVs.
This presentation also highlights concepts for battery design with high cost reducing effects.
- Cost trend for EV battery packs
- per kWh as a function of cell standardization
- per kWh as a function of component standardization
- as a function of production volume
- Battery architecture
- Impact to the costs of the battery pack
- Trends for cost reduction due to new architectures
- Thermal management of the battery system
- Impact of different thermal management architectures to the costs
- Cost comparison for the thermal management architectures
- Development process: validation of battery systems
- Now used validation processes and impact to the costs of the battery system
- New way of battery system validation for cost reduction while fulfilling customer requirements
The presentation concludes with a conclusion for a possible cost reduction of battery systems in future.
Close Abstract
