Toward a Safe and High Performance Quasi-Solid-State Structural Battery

• DOI: 10.1021/acsaem.4c00981
• Publication Date: 2024-10-14T16:44:26Z
• Authors: Kwok Kiong Chan; Gwendolyn Jia Hao...; Nur Ayu Afira Sut...; Karthikayen Raju; Madhavi Srinivasan
• Keywords: Engineering; 660; Vacuum filtration; Carbon fiber cathode; 620

The development of structural batteries has increased in recent years due to its simultaneous ability energy storage and load-bearing capability. Carbon fibers (CF) are excellent candidates as electrode materials current collectors for their lightweight, electrical conductivity, mechanical properties. In this work, carbon fiber cathodes (CFC) were fabricated via vacuum filtration using substrate with different cathode active comprising high voltage NMC-based (NMC111, NMC622, NMC811) LFP control. Coupled a nonflammable PVDF-HFP based gel polymer electrolyte (GPE) wide electrochemical stability window, the half-cell performances CFC-GPE studied. A battery prototype full cell configuration was constructed NMC622-CFC || GPE CF, an outstanding capacity retention 95.2% at ambient conditions 1C rate after 100 cycles. Despite repeated external loading on battery, mechanically robust able retain 99% original specific capacity. functional shaped roof small, motorized toy car used power it several runs, could also withstand load while retaining integrity. Future vehicular support potentially be designed multifunctional, increasing mass savings, volume efficiency, effective vehicle range.