Lithium Ion is the predominant battery technology to power the emerging plug-in hybrids and all-electric vehicles. Cell chemistry and mechanical design vary among developers as they try to balance safety, durability, performance, and cost to improve the value proposition of the technology. In this session, EV/PHEV vehicle and battery developers will discuss the chosen battery designs and present performance data.
Session Chairman: William Wallace, Director, Global Battery Systems, General Motors Co.
Director of General Motor’s Global Battery Systems, Mr. William Wallace is responsible for all GM Li-Ion battery and EVSE product development, validation and integration as well as GM’s global battery labs. He has over 25 years of product development experience in the aerospace and automotive industries in both North America and Europe. He also serves as a board member of the General Motors / University of Michigan Advanced Battery Coalition for Drivetrains, which is a joint research program focused on spanning the gap between battery material synthesis and vehicle controls integration.
SESSION AGENDA
Designing the Right Battery for the Right Vehicle – How Vehicle Level Attributes drive High Voltage Battery System Design Daniel Kok, Manager for Advanced Electrified Powertrain Systems, and Steven Chorian, HV Battery Technology Manager, Ford Motor Company
As Electrified Vehicle (xEV) offerings continue to grow in the market, we see an increased differentiation in vehicle level attributes such as fuel economy, performance and all-electric range. This directly impacts the complexity in components and systems that make up high-voltage battery and e-drive systems driving these vehicles. Even within a particular technology subset, such as Plug-in Hybrid Electric Vehicles, a wide range of capabilities have entered the market. Examples range from a blended Full-HEV with opportunistic EV operation all the way to full EV operation with range extender functionality.
It is important to understand what elements of the FHEV and PHEV technology can be shared among the applications, to improve vehicle cost and reduce complexity for the OEM. However, some requirements of the various xEV applications may continue to drive unique solutions.
Specifically, in this presentation, we will cover
Vehicle attributes and Operational Modes for various xEV applications
HV Battery and e-drive considerations for xEV applications
Customer use cases that drive differentiation between xEV applications
Thermal and battery usage considerations.
Gen 2 Chevy Volt Battery Mike Celotto, Global Engineering Lead, Global EREV/PHEV Battery Packs, General Motors
The original Chevy Volt was touted by the Wall Street Journal as GM's "most technologically significant car since the 1912 Cadillac," and referred to its battery pack as "the piece on which all else depends." It's replacement, the 2016 Chevy Volt, aims to carry the torch forward, improved in every way, including its all-important battery pack. What has GM done to improve the battery? Some of the improvements that will be described are:
Pack capacity
Power output
Mass reduction
Part complexity reduction
Other significant improvements
Analysis of Customers’ Usage Data of Fit EV Tsubasa Uchida, Assistant Chief Engineer, Honda R&D
Honda started leasing Fit EV with lithium-ion battery in Japan and in the USA in 2012 summer. With telematics function Fit EV periodically transmits various data of vehicle and battery usage to Honda’s servers for analysis (Honda obtained the consents of all customers to the data transmission and usage). As of August 2014 the servers stored the usage data of more than 10 million-mile driving from about 1,000 EVs, amounting to 400 million records. By analyzing the large volume of data, we categorized various characteristic usage patterns; we categorized distinctive usage patterns that influence battery durability.
Hyundai’s Battery System for New xEV & Feature Dokyoung Lim, Senior Research Engineer, Hyundai Motor Company
Hyundai Motor Company has kept an eye on vehicle & battery development trend. Hyundai has developed and launched new version HEV and Hyundai’s first PHEV for the world market. High voltage battery systems for these eco cars have been developed in order to maximize merchantability and utilization of space for customers.
Specifically, in this presentation,
Hyundai Motor Company Eco-friendly Vehicle Development Status
Hyundai’s Brand New sonata HEV
Battery system overall design, composition, location, efficiency & performance
Technology Trends for Battery Pack Systems Carlton Brown, Director of Engineering / ENA, Robert Bosch GmbH
Robert Bosch Battery Systems develops and produces lithium-ion battery pack systems, battery modules and battery management systems for multiple applications and automakers. Lithium Energy and Power, a joint venture of Bosch, GS Yuasa and Mitsubishi Corporation, is developing the next generation of automotive lithium-ion technology to increase the competitiveness of these products. This presentation looks at Technology Trends and KPIs for Next Generation Lithium-Ion Battery Systems.
Today’s automotive battery systems continue to be under pressure for increased energy density and reduced cost, while at the same time battery suppliers are managing the tremendous investment cost for installing the necessary manufacturing capacity for the growing electrification industry.
Key content will focus on:
Lithium-ion Battery Systems: today and next generation
Plug-in Hybrid Vehicles: KPIs and cell trends
Electric Vehicles: KPIs and cell trends
New products: Boost-Recuperation Systems
The presentation concludes with a summary and outlook.
Samsung's Automotive Battery Strategy Jason Kwon, Director, Lead of Product Planning, Samsung SDI
Samsung SDI has developed a lithium-ion battery for past 16 years and launched automotive battery development at 2009. Based on track record of IT Lithium battery, Samsung SDI provide eco-friendly and clean energy solution to Automotive customers. This presentation illustrates Samsung SDI’s strategy for automotive industries including cell/Module/Pack.
Introduction of Samsung SDI
Strength of Samsung’ technologies
Future strategy
The Tesla Model S Battery – A Pack Analysis Study Andreas Könekamp,Senior Battery Systems Exper, AVL List GmbH
The launch of Tesla’s model S changed the world of electromobility and consumer acceptance. Now, full battery electric vehicles are possible with a much wider range and for more attractive prices. Since the battery is the cost and performance driver, a closer look is helpful to fully understand the success of Tesla but also identify some existing risks if not managed carefully. In the presentation we will give an overview about the following topics:
Key battery performance characteristics based on vehicle data as well as battery and cell level tests
Analysis of battery cooling system and interaction with the vehicle
Assessment of mechanical and electrical structure of the battery based on tear down or detail analysis of the battery and a high level bill of material
Review of patents
Assessment of weight, quality, safety, and total battery cost
