Review on Manufacturing Methods of Functionally Graded Material of Solid-State Batteries

Lithium-Ion Battery (LIB) has been a critical component for solar Photovoltaic and wind energy implementation, Electric Vehicle (EV) implementation, and other electronic devices that require a battery. However, further LIB development exposed safety issues such as battery explosion due to short circuits caused by lithium dendrite growth. All- Solid-State Battery (SSB) is considered the most promising prospect due to the non-flammable characteristic of the SSB. Nevertheless, some problems still need to be solved, for example, impedance resulting from interfacial and internal resistance of both electrodes and electrolytes, ionic conductivity, and battery’s mechanical properties. Therefore, several studies show that Functionally Graded Materials (FGM) implemented for SSB electrolytes and electrodes is one of the prospects to solve this problem. This review paper discusses recent research on SSB and FGM, manufacturing methods, and future development of FGM manufacturing for SSB.