Powering the Future: Light Innovative All-Solid-State Batteries (IASSB) ^†

Since the energy density performance of conventional lithium-ion batteries (LIBs) reaches its limit, solid-state batteries (SSBs) exhibit excellent behavior. However, SSBs electrolytes’ complex synthesis and difficult cell application prevent their mass production.

The core of this study is the innovation of safe and high-energy/lightweight sustainable and marketable all-solid-state batteries (IASSB) that may become an imperative requirement in robots, mobile computing, aircraft, spaceships, biomedical and healthcare applications.

The key element in fabricating light IASSBs with excellent energy density is implementing super-scalable hierarchical olivine nanostructured LiFePO₄ (LFP) materials loaded on commercial, flexible, lightweight, and high conductivity carbon felt (CF) as cathode electrodes. Moreover, instead of using an unsafe Li-metal anode, a high capacitance SiO₂ loaded on CF as negative electrodes. As the electrolyte, we use a non-toxic, fireproof, and ultra-lightweight solid-state ferroelectric electrolyte composite based on the M_(3-2x)Ba_xClO family (M is Na and K) with high ionic conductive additives to replace the flammable liquid electrolytes of conventional LIBs. Moreover, the design of next-generation high-energy/lightweight IASSB cell technology is compatible with the novel structure of the lightweight thin-cork shell material. The creation of structured light cork-IASSB can also surpass the performance of liquid LIBs and solid-state batteries. The electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge cycles (GCD) were performed in a potentiostat/galvanostat/ZRA Gamry reference 3000AE™ workstation and Neware-BTS4000 battery tester, respectively.