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| Big Energy Seminars Presents: Approaches to Evaluating and Improving Lithium-Ion Battery Safety |
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| Start Date: | 2/7/2013 | Start Time: | 3:30 PM |
| End Date: | 2/7/2013 | End Time: | 5:30 PM |
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Event Description
As lithium-ion battery technologies mature, the size and energy of these systems continues to increase for emerging applications in transportation, grid storage, military use and aerospace. In fact, broadening the application space for lithium-ion batteries from the consumer electronics industries to these emerging markets increases their size from 1-50 Wh batteries for smart phones and laptops to >50 kWh for electric vehicles (EVs) and MWh scale for utility storage systems. As these energy storage systems grow, safety and reliability issues will become increasingly important. Moreover, as the application space changes for these energy storage devices, the failure modes and mitigations for hazards associated with these failures will also change and evolve. While system or use controls are often designed into large batteries to mitigate more predictable problem scenarios (overcharge, cell imbalance, high voltage short circuit, etc.), it is a significant challenge to design for unpredictable field failure safety incidents (internal short, failure propagation, etc.). Moreover, there are fundamental materials chemistry improvements that can be made in order to improve the overall inherent safety of a large battery (and therefore, the system), without the need for relying solely on ancillary external system control electronics.
This presentation highlights our work to better understand safety issues and abuse response of large-scale lithium-ion battery systems and development efforts to improve inherent lithium-ion battery safety.
Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000. |
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This event is open to
Everyone |
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