P OWER P ANEL Design NMC Battery Sandwich Panel 2 P OWER P ANEL - PowerPoint PPT Presentation

Penn State University Team: P OWER P ANELS : Multifunctional PI: Prof. Chris Rahn, cdrahn@psu.edu, Co-PIs: Prof. Chuck Bakis, Prof. Mike Hickner, Dr. Yancheng Composites with Li-Ion Battery Cores Zhang, Post-doc: Abhen Singh, Students: Lei Cao, Jun Ma, Siho Yeo, Devin O’Donnell Technology Overview Current Status • • Developed stacked battery material fabrication PowerPanels are integrated structural panels process including electrolyte-resistant adhesive and Li-Ion energy storage. • • Fabricated several small-scale PowerPanels Sandwich panel construction takes advantage • Demonstrated structural stiffness/strength and of structural strength of current collectors. • 280 Wh/L energy storage after mechanical testing COTS battery materials provide state-of-the-art • Demonstrated capacity retention for 100 cycles electrochemical performance. • • Technical Needs: Vehicle structural design & Structure and battery occupying the same scale-up manufacturing. volume doubles the energy density. • • T2M Need: Commercialization partners Many potential applications in vehicles. PowerPanel Prototype Battery Materials Inside Project Statistics Award Amount $770,000 1/14 – 6/15 Award Timeline Next Stage Target 300 Wh cell Collaborations Sought Scale-up & manufacturing Provisional Patent Pending

P OWER P ANEL Design NMC Battery Sandwich Panel 2

P OWER P ANEL Prototype Testing Results Energy Storage Structurally Stiff 3

P OWER P ANEL Prototype Passes Cycling Test  Initial 18.9Ah, 70Wh Mechanical Tests  248Wh/L, 113Wh/kg • Capacity retention 84.3% after 50 cycles. • No loss of discharge capacity after mechanical tests following 50 cycles. 4

Value Added of Structural Batteries Analysis of Tesla Model S: • P OWER P ANEL has similar size, weight, Cross Members and electrical performance as the existing Tesla Model S battery pack. • P OWER P ANEL floor eliminates the need for rocker panels and cross members • Saves 84 kg of aluminum (material cost alone ≈ $185). • Increases interior space by 6 ft 3 . • P OWER P ANEL floor is dense and sound absorbing for a quiet ride. • P OWER P ANEL floor gives the vehicle a low CG and 50/50 weight balance for Rocker Panel excellent handling. 5