Technology Keywords: Lithium ion battery, energy storage, electric vehicles, lightweight, robust, multifunctional, structural, composites, carbon fiber, battery health monitoring, multifunctional, composite structures
Overview: Professor Chang’s participation in ARPA-E’s 2017 Technology Showcase is sponsored by Stanford’s Precourt Institute for Energy, which works with experts and resources across the university to help accelerate the transition to an affordable, low-carbon energy system for the world. Multifunctional Energy Storage Composites for Lightweight Vehicle Applications: Professor Fu-Kuo Chang at Stanford University’s Structures & Composites Laboratory has developed a multifunctional structural battery which embeds active lithium-ion battery materials into high-strength composites together with in-situ networks of sensors and actuators. The multifunctional energy storage (MES) composites not only can supply electrical power but also serve as a structural element, capable of concurrently carrying mechanical loads. In addition, the built-in sensor/actuator networks can monitor the health state of both the composite structure as well as the battery on a real-time on-demand basis. The MES Composites are scalable and can deliver considerable weight and volume savings at the system level for various types of electric vehicles and electric systems.