NOVELTY - The method comprises applying (602) a first active cathode material above a substrate to form a first cathode, applying (604) a first solid-phase ionically-conductive electrolyte material above the first cathode to form a first electrode separation layer, applying (606) a first active anode material above the first electrode separation layer to form a first anode, applying (608) an electrically conductive barrier layer above the first anode, and applying (610) a second active cathode material above the barrier layer to form a second cathode.    USE - The method is useful for producing a multi-layer bipolar coated cell such as rechargeable solid-state lithium-ion battery, which is useful in portable applications such as wireless communications and portable computing, electric vehicle and hybrid electric vehicle and for power tool applications.    ADVANTAGE - The method is capable of economically producing the multi-layer bipolar coated cell with enhanced terminal voltage, high energy density, excellent cycle life, improved performance, reliability and safety and reduced weight.    DETAILED DESCRIPTION - The method comprises applying (602) a first active cathode material above a substrate to form a first cathode, applying (604) a first solid-phase ionically-conductive electrolyte material above the first cathode to form a first electrode separation layer, applying (606) a first active anode material above the first electrode separation layer to form a first anode, applying (608) an electrically conductive barrier layer above the first anode, applying (610) a second active cathode material above the barrier layer to form a second cathode, applying a second solid-phase ionically-conductive electrolyte material above the second cathode to form a second electrode separation layer, applying a second active anode material above the second electrode separation layer to form a second anode, applying a metal material above the second anode to form a metal coating section, performing calendaring and slitting operations on the multi-layer bipolar coated cell, and hermetically sealing the multi-layer bipolar coated cell using a hermetic package coating section. The first and second active cathode materials comprise an ionically conductive polymer to facilitate ion transport in interstitial spaces of the first and second cathodes and to facilitate lithium transport in interstitial spaces of the first and second anodes. The ionically conductive polymer comprises a polymer with anionic sulfonate groups substituted onto a carbon-based backbone. The first and second solid-phase electrolyte materials comprise particles of inorganic solid-state lithium ion conductors dispersed in a polymeric binder, which is an ion exchange polymer with high lithium mobility or a polymeric electrolyte material. The ion exchange polymer comprises a polymer with anionic sulfonate groups substituted onto a carbon-based backbone. The step of applying the electrically conductive barrier layer comprises applying a metal interconnect material between the first and second cathodes to form a metal interconnect section. An INDEPENDENT CLAIM is included for a multi-layer bipolar coated cell formed on a single substrate.    DESCRIPTION OF DRAWING(S) - The diagram shows a flow chart of a method for producing a multi-layer bipolar coated cell.    Apply a first active cathode material above a substrate to form a first cathode (602)    Apply a first solid-phase electrolyte material above the first cathode to form a first electrode separation layer (604)    Apply a first anode material above the first electrode separation layer to form a first anode (606)    Apply a barrier layer above the first anode to form a metal interconnect section (608)    Apply a second active cathode material above the first metal interconnect coating section to form a second cathode. (610)