US Patent 10903672 Charge method for solid-state lithium-based thin-film battery

A method of charging a solid-state lithium-based battery that does not include a lithium deposited anode (i.e., lithium anode-free, solid-state lithium-based battery) is provided. The method includes charging a lithium anode-free, solid-state lithium-based battery that needs to be charged utilizing at least an initial charge stage in which a charge rate of 5 C or greater is performed for a period of time of 50 seconds or less. Such charging can produce a reduced deformation of the top electrode of the lithium anode-free, solid-state lithium-based battery.