The present invention has an object to provide a secondary battery manufacturing method and apparatus capable of impregnating a sufficient amount of electrolyte in an electrode laminated body with simplified work effort while reducing working time and a manufacturing cost. The method of manufacturing a secondary battery according to the present invention comprises the steps of: inserting, into an outer container, an electrode laminated body in which a positive electrode and a negative electrode are laminated with a separator interposed therebetween; sealing an outer peripheral portion of the outer container except for a part thereof before or after the electrode laminated body is inserted; and injecting electrolyte (5) into the outer container having the electrode laminated body inserted therein, from non-sealed part as an injection port (6a). In the step of injecting the electrolyte (5), injection of the electrolyte (5) is started in an atmospheric pressure environment, and then the injection of the electrolyte (5) and pressure reduction of an environmental pressure are performed.

A bipolar battery plate is utilized for production of a bipolar battery. The bipolar battery plate includes a frame, a substrate, first and second lead layers, and positive and negative active materials. The substrate includes insulative plastic with conductive particles homogeneously dispersed throughout the insulative plastic and exposed along surface of the substrate, the substrate positioned within the frame. The first lead layer is positioned on one side of the substrate, while the second lead layer is positioned on another side of the substrate. The first and second lead layer are electrically connected to each through the conductive particles. The positive active material is positioned on a surface of the first lead layer, and the negative active material positioned on a surface of the second lead layer.

A battery includes a stacked arrangement of electrochemical cells. Each electrochemical cell is free of a cell housing and includes a bipolar plate having a substrate, a first active material layer formed on a first surface of the substrate, and a second active material layer formed on a second surface of the substrate. Each cell includes a solid electrolyte layer that encapsulates at least one of the active material layers, and an edge insulating device that is disposed between the peripheral edges of the substrates of each pair of adjacent cells. The edge insulating device physically contacts and is directly secured to one of the first surface of one cell and the solid electrolyte layer of an adjacent cell, and is movable relative to, the other of the first surface of the one cell and the solid electrolyte layer of the adjacent cell.

A bipolar battery including a) one or more stacks of battery plates assembled into electrochemical cells having i) one or more bipolar plates and ii) a first and second monopolar plate; b) a liquid electrolyte disposed between each pair of battery plates, wherein the liquid electrolyte functions with an anode and cathode pair to form an electrochemical cell; c) a separator located between the anode and the cathode of the electrochemical cell; and d) a membrane comprising a polymeric material disposed about an entire periphery of edges of the one or more stacks of battery plates so as to form a seal about the periphery of the edge of the battery plates, and wherein the seal prevents the liquid electrolyte from flowing outside of the one or more stacks of battery plates.

Disclosed herein is an electronic device including a substrate, with an active layer stack on the substrate. A cover is on the active layer stack and has a surface area greater than that of the active layer so as to encapsulate the active layer stack. A conductive pad layer is on the cover. At least one conductive via extends between the active layer stack and the conductive pad layer.

A battery assembly can be formed on a base layer provided on a substrate, with a thin film battery stack including an anode layer, a cathode layer, and an electrolyte layer between the anode and cathode layers. The thin film battery stack can be encapsulated, and assembled into a battery system with electrical power connections for the anode and cathode layers.

Elements of an electrochemical cell using an end to end process. The method includes depositing a planarization layer, which manufactures embedded conductors of said cell, allowing a deposited termination of optimized electrical performance and energy density. The present invention covers the technique of embedding the conductors and active layers in a planarized matrix of PML or other material, cutting them into discrete batteries, etching the planarization material to expose the current collectors and terminating them in a post vacuum deposition step.

Disclosed herein is a stacked/folded type electrode assembly configured to have a structure in which a plurality of unit cells, each of which includes a positive electrode having an electrode mixture including an electrode active material applied to a current collector, a negative electrode having an electrode mixture including an electrode active material applied to a current collector, and a separator disposed between the positive electrode and the negative electrode, is wound in the state of being arranged on a sheet type separation film, wherein the unit cells include one full cell and three or more bi-cells, the outermost unit cells of the electrode assembly are each configured such that an electrode forming the outside of the electrode assembly is configured as a single-sided electrode, in which no electrode mixture is applied to the surface of the current collector facing the outside of the electrode assembly, and the single-sided electrodes are electrodes having the same polarity.

A method for producing a multi-layer bipolar coated cell according to one embodiment includes applying a first active cathode material above a substrate to form a first cathode; applying a first solid-phase ionically-conductive electrolyte material above the first cathode to form a first electrode separation layer; applying a first active anode material above the first electrode separation layer to form a first anode; applying an electrically conductive barrier layer above the first anode; applying a second active cathode material above the anode material 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; and applying a metal material above the second anode to form a metal coating section. In another embodiment, the anode is formed prior to the cathode. Cells are also disclosed.

Elements of an electrochemical cell using an end to end process. The method includes depositing a planarization layer, which manufactures embedded conductors of said cell, allowing a deposited termination of optimized electrical performance and energy density. The present invention covers the technique of embedding the conductors and active layers in a planarized matrix of PML or other material, cutting them into discrete batteries, etching the planarization material to expose the current collectors and terminating them in a post vacuum deposition step.