8th European Workshop On Structural Health Monitoring (EWSHM 2016)
5-8 July 2016, Spain, Bilbao
Right Now in Bilbao 02:52 Fri 23
Design of Multifunctional Structural Batteries with Health Monitoring Capabilities
Abstract »Recently, more and more advanced high-performance energy storage techonologies are being developed to meet the requirements of various mobile and autonomous applications, particularly the high-energy lithium-ion battery. However, the current design of high-energy batteries considers solely the energy storage functionality, thus they need to be packaged in extensive heavy protections to avoid external mechanical loads, and also demand adequate monitoring in order to sustain their useful life. This work presents the development of the first-generation Multifunctional Energy Storage (MES) Composites – a multifunctional structural battery which embeds standard li-ion battery materials into high-strength composites together with in-situ networks of sensors and actuators. MES Composites not only can supply electrical power but also serve as structural elements, capable of concurrently carrying mechanical loads. In addition, the built-in sensor/actuator networks can monitor the state and health of both of the composite structure as well as the battery on a real-time on-demand basis. As part of this study, the MES Composite batteries were fabricated and then underwent a series of characterization tests to evaluate the synergistic energy-storage and load-carrying functionalities. Data generated from built-in sensors were also used to characterize the battery state of charge and health, in comparison with results from the electrochemical reference performance tests, and quantify any non-catastrophic degradation in the electrochemical performance. The obtained results verify the multifunctional capabilities of the MES Composites for developing a novel minimum-weight and efficient energy storage system.
AuthorsChang, Fu KuoChang, Fu Kuo
Dr. Fu-Kuo Chang is professor at the Aeronautics and Astronautics Department, Stanford University, California. His primary research interest is in the areas of multi-functional materials and intelligent structures with particular emphases on structural health monitoring, intelligent self-sensing diagnostics, and integrated health management for space and aircraft structures as well safety-critical assets and medical devices. He has been recipient of many scientific awards, among them the Structural Health Monitoring (SHM) Lifetime Achievement Award, The Boeing Company (2004), and Life-Time Achievement Award, SPIE NDE/SHM (2010). He is the Editor-in-Chief of Int. J. of Structural Health Monitoring. He is also a Fellow of AIAA and ASME and a member of Advisory board of US ARL.
Aeronautics & Astronautics
Thu 7. 14:00, C1
Session: Diagnostics and Prognostics for Damage Assesment
Title: SHM-based fatigue damage prognostics in composite structures