The terminology is very confusing. Most 'solid state' batteries are lithium-ion batteries, specially all the commercial ones you hear about as being the next bi

The terminology is very confusing. Most 'solid state' batteries are lithium-ion batteries, specially all the commercial ones you hear about as being the next big thing. In those batteries rather then having a graphite with some silicone mixed in, the anode is simply pure lithium metal and you do not have liquid electrolyte in the whole battery. However some solid state batteries still have a liquid electrolyte on the cathode side. Your phone is most likely using standard, 622-NCM (Nickel 60%, Cobalt 20%, Aluminum 20%) Cathode with graphite anode.