Dynamic high strain rate characterization of lithium-ion nickel–cobalt–aluminum (NCA) battery using split hopkinson tensile/pressure bar methodology
Fadillah H.a,b, Santosa S.P.a,b, Gunawan L.a,b, Afdhal A.a, Purwanto A.b,c
a Lightweight Structure Laboratory, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung (ITB), Bandung, 40132, Indonesia
b National Center of Sustainable Transportation Technology (NCSTT), Bandung, 40132, Indonesia
c Department of Chemical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, 57126, Indonesia
Abstract
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.The dynamic behavior of the lithium-ion battery is evaluated by simulating the full battery system and each corresponding component, including the jellyroll and thin-foil electrodes. The thin-foil electrodes were evaluated using a novel design of split Hopkinson tensile bar (SHTB), while the jellyroll was evaluated using the split Hopkinson pressure bar (SHPB). A new stacking method was employed to strengthen the stress wave signal of the thin-foil electrodes in the SHTB simulation. The characteristic of the stress–strain curve should remain the same regardless of the amount of stacking. The jellyroll dynamic properties were characterized by using the SHPB method. The jellyroll was modeled with Fu-Chang foam and modified crushable foam and compared with experimental results at the loading speeds of 20 and 30 m/s. The dynamic behavior compared very well when it was modeled with Fu-Chang foam. These studies show that the dynamic characterization of Li-ion battery components can be evaluated using tensile loading of stacked layers of thin foil aluminum and copper with SHTB methodology as well as the compressive loading of jellyroll using SHPB methodology. Finally, the dynamic performance of the full system battery can be simulated by using the dynamic properties of each component, which were evaluated using the SHTB and SHPB methodologies.
Author keywords
Compressive loading,Dynamic behaviors,Dynamic characterization,Dynamic performance,Dynamic property,High strain rates,Split Hopkinson pressure bars,Split Hopkinson tensile bars
Indexed keywords
Battery safety,Dynamic impact,Split Hopkinson bar,Tensile test
Funding details
Funding: This research was funded by USAID through the Sustainable Higher Education Research Alliances (SHERA) Program – Center for Collaborative (CCR) National Center for Sustainable Transportation Technology (NCSTT) under contract no. IIE00000078-ITB-1. This research is also partially funded by the Indonesian Ministry of Research and Technology, and Ministry of Education and Culture under World Class University (WCU) Program managed by Institut Teknologi Bandung.