Abstract: A solid-state battery includes: a solid-state battery cell Including a laminate having at least one positive electrode having a positive electrode current collector and a positive electrode active material layer, at least one negative electrode having a negative electrode current collector and a negative electrode active material layer, and a solid-state electrolyte interposed between the positive electrode and the negative electrode, and a first elastic member arranged at least on both sides of the laminate in a laminating direction; and a resin casing made of a thermosetting resin or a thermoplastic resin and which closely adheres to and covers the solid-state battery cell.

Abstract: To provide a solid-state battery capable of achieving high capacity. A solid-state battery including a multilayer body including a stack of a plurality of electrode layers including positive electrode layers and negative electrode layers and solid electrolyte layers each disposed between the electrode layers, the multilayer body having a columnar shape; and the solid-state battery including a positive electrode terminal and a negative electrode terminal disposed at both end portions of the multilayer body; a positive electrode tab electrically connected to the positive electrode layer and the positive electrode terminal; and a negative electrode tab electrically connected to the negative electrode layer and the negative electrode terminal, wherein the positive electrode tab and the negative electrode tab are spirally wound on an outer peripheral surface of the multilayer body.

Abstract: To secure ionic conductivity by improving the adhesion between an electrode material mixture and a solid electrolyte and suppressing electrodeposition of lithium. A lithium ion secondary battery (100) includes a positive electrode including an electrode material mixture that fills pores of a metal porous body constituting an electrode current collector, a first solid electrolyte layer including a solid electrolyte that fills pores of a resin porous body, and a negative electrode including an electrode material mixture that fills pores of a metal porous body constituting an electrode current collector. The positive electrode and the negative electrode are alternately stacked with the first solid electrolyte layer provided therebetween.

Abstract: To improve the adhesion between an electrode material mixture and a solid electrolyte, and thereby suppress electrodeposition of lithium. This electrode includes a planar electrode current collector including a metal porous body, an electrode material mixture layer that fills pores of the metal porous body, and a solid electrolyte layer that fills pores of the metal porous body. The electrode material mixture layer is formed on one side of the electrode current collector, and the solid electrolyte layer is formed on the other side of the electrode current collector. The electrode material mixture layer and the solid electrolyte layer are stacked in a planar shape in the pores of the metal porous body.

Abstract: The disclosure provides a cell structure of a solid state battery capable of uniformly holding a solid state battery cell in a battery case and a manufacturing method of a solid state battery. In a process of manufacturing a can cell of the solid state battery, a shock absorber is disposed in the battery case after the solid state battery cell is inserted into the battery case and before a can lid is welded. Then, the lid is provided to seal the case. At the time of sealing, the solid state cell and a terminal are fastened by using an engaging member, and the airtightness is improved.

Abstract: A secondary battery electrode includes: a current collector made of a porous metal material; and an electrode material mixture with which the current collector is filled. The current collector includes a material mixture-filled segment that is filled with the electrode material mixture, and a material mixture-unfilled segment that is unfilled with the electrode material mixture. The material mixture-unfilled segment includes a current-collecting tab which is thinner than the material mixture-filled segment and in which the porous metal material is present at a higher density than in the material mixture-filled segment, and a tab convergence portion via which the material mixture-filled segment is coupled to the current-collecting tab. The tab convergence portion is provided with at least one rib extending from a side adjacent to the material mixture-filled segment toward the current-collecting tab.

Abstract: To provide a solid-state battery that can improve layout by allowing a current collecting position to be optionally disposed and that can suppress the occurrence of short circuits. A solid-state battery includes a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode. A first electrode selected from one of the positive electrode and the negative electrode includes a material mixture filled portion including a metal porous body filled with an electrode material mixture. The solid electrolyte layer is disposed so as to cover a periphery of the material mixture filled portion. A second electrode selected from the other of the positive electrode and the negative electrode is disposed so as to cover the solid electrolyte layer.

Abstract: An all-solid-state lithium-ion secondary battery which enables a leak inspection to be swiftly and simply performed is provided. The all-solid-state lithium-ion secondary battery includes an electrode laminate in which a positive electrode, a solid electrolyte layer, and a negative electrode are alternatingly laminated and disposed, a tab gathering section extended from the electrodes, and an exterior film which clads the electrode laminate and the tab gathering section. The electrode laminate and the tab gathering section are vacuum packaged by the exterior film. For example, it is possible to perform a leak inspection of the all-solid-state lithium-ion secondary battery by a recess for inspection formed by the exterior film following along a recess formed in the surface on the electrode laminate side being present, and measuring displacement of this recess for inspection.

Abstract: Provided are an electrode for lithium ion secondary batteries which can prevent cracking of the electrode, and a lithium ion secondary battery made using the same. An electrode (1, 2) for a lithium ion secondary battery (100) includes a collector (10, 20) of a metal porous body having a predetermined thickness, and having a corner of at least one location in a stereoscopic view; and an electrode mixture (18, 28) filled into these pores. The collector has a mixture filled region (11, 21) in which the electrode mixture is filled, and a mixture non-filled region (15, 25) in which the electrode mixture is not filled, or a high modulus filler having smaller elastic modulus than the electrode mixture is filled, existing at a corner of the collector.

Abstract: To provide a lithium ion secondary battery that allows the cell state to be monitored by arranging a reference electrode, even in a solid-state battery. In a lithium ion secondary battery 50, a positive electrode 1, a reference electrode 3, and a negative electrode 2 are arranged in this sequence. The positive electrode 1 includes a first current collector 11 including a metal porous body, and a first electrode material mixture 15 with which pores of the first current collector 11 are filled. The negative electrode 2 includes a second current collector 21 including a metal porous body, and a second electrode material mixture 25 with which pores of the second current collector 21 are filled. The reference electrode 3 includes a third current collector 31 including a metal porous body, and a solid electrolyte 35 with which pores of the third current collector 31 are filled.

Abstract: To provide a solid-state battery in which the capacity and voltage can be optionally adjusted in a single battery and the installation space for the battery can be reduced. A solid-state battery includes a plurality of electrode layers, and a solid electrolyte layer disposed between the electrode layers. The electrode layers includes positive electrode portion formed by filling a current collector including a metal porous body with a positive electrode material mixture, negative electrode portion formed by filling a current collector including a metal porous body with a negative electrode material mixture, and an isolation portion formed between the positive electrode portion and the negative electrode portion. Between the plurality of electrode layers disposed adjacent to each other, the positive electrode portion and the negative electrode portion are disposed so as to face each other, and the isolation portions are disposed so as to face each other.

Abstract: Provided are a lithium ion secondary battery electrode that occurrence of short-circuit and contamination can be reduced and the method for manufacturing such a lithium ion secondary battery electrode. An electrode used for a lithium ion secondary battery includes a current collector formed of a metal porous body. The current collector has a mixture layer impregnated with an electrode material mixture containing an electrode active material and a non-mixture-impregnated portion not impregnated with the electrode material mixture and including a tab portion and a tab converging portion. The surface roughness Ra of the non-mixture-impregnated portion is equal to or less than the surface roughness of the mixture layer.

Abstract: The disclosure provides a cell structure of a solid state battery capable of uniformly holding a solid state battery cell in a battery case and a manufacturing method of a solid state battery. In a process of manufacturing a can cell of the solid state battery, a shock absorber is disposed in the battery case after the solid state battery cell is inserted into the battery case and before a can lid is welded. Then, the lid is provided to seal the case. At the time of sealing, the solid state cell and a terminal are fastened by using an engaging member, and the airtightness is improved.

Abstract: Provided is a battery module having a structure for cooling efficiently without affecting the volume of the entire module. By utilizing dead spaces uniquely present in laminate cells and conducting heat in a lamination direction of electrodes to dissipate the heat, the cooling efficiency is improved without increasing the volume of the entire module.

Abstract: To provide a solid-state battery capable of achieving a higher capacity. A solid-state battery includes a positive electrode and a negative electrode. The positive electrode and the negative electrode each includes a current collector that is a metal porous body having a spiral shape, and an electrode material mixture with which the current collector is filled. The positive electrode and the negative electrode are arranged in combination such that opposing faces of the positive electrode and the negative electrode alternately contact each other in an axial direction of the spiral shape. A pair of the positive electrode and the negative electrode having the above structure are housed in an exterior packaging body having a cylindrical shape to achieve a higher capacity of the solid-state battery.

Abstract: To provide a solid-state battery having high safety and high energy density. An electrode for a solid-state battery includes a current collector that is a metal porous body, and an electrode material mixture with which the current collector is filled. The current collector has an end portion having a material mixture non-filled region that is not filled with the electrode material mixture. The material mixture non-filled region has a part that is a fuse function portion. The fuse function portion has a smaller total cross-sectional area of metal in a cross section perpendicular to a direction of the end portion than the rest of the material mixture non-filled region.

Abstract: To provide an electrode for a lithium-ion secondary battery that can reduce risk of a short circuit when a porous metal is used as a current collector. An electrode for lithium-ion secondary battery having a positive electrode, a negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode, the electrode comprising a current collector and a current collector tab, wherein the current collector is constituted by a metal porous body having voids in communication with each other, wherein a surface of the current, collector, including surfaces of the voids, is covered with an ion conductor layer, and wherein an electrode active material is disposed on the surface of the ion conductor layer of the voids.

Abstract: In order to secure a larger cooling surface area for battery cells and making it possible to keep the height of the battery module low and improve the degree of freedom in arranging the battery cells, this battery module is provided with a plurality of battery cells 2 each comprising an all-solid battery having laminated therein a positive electrode layer 201, a negative electrode layer 202, and a solid electrolyte layer 203. Each of the battery cells 2 has a pair of electrode terminals 23a, 23b protruding from opposing lateral faces 22 of the battery cell 2. The plurality of battery cells 2 are arranged so as to be parallel to the lamination planes of the positive electrode layer 201, the negative electrode layer 202, and the solid electrolyte layer 203 and in such a manner as to have the respective electrode terminals 23a, 23b of different battery cells 2 arrayed in parallel to each other.

Abstract: A cell holder (1) for holding a secondary battery cell (9) including a positive electrode active material, a negative electrode active material, and an electrolyte which is disposed between the positive electrode active material and the negative electrode active material and is in contact with both the positive electrode active material and the negative electrode active material, and for outputting power from the secondary battery cell (9), includes a cell holder body (30), and a pressing portion (10) which is supported by the cell holder body (30) and includes a disc spring (11) being in contact with a first end face of the secondary battery cell (9) in a first direction and pressing the first end face of the secondary battery cell (9) in a second direction opposite to the first direction.

Abstract: battery module is provided with: battery cells comprising all-solid-state batteries having a positive electrode layer, a negative electrode layer, and a solid electrolyte layer; a support plate on which the battery cells are mounted; and a cooling medium channel through which a cooling medium for cooling the support plate flows, wherein electrode terminals are provided so as to project from one surface of the battery cells, bus bars capable of electrically connecting to the electrode terminals are provided on a battery cell mounting surface, the bus bars are in thermal contact with the support plate, and the battery cells are mounted on the support plate by causing one surface of the battery cells to face the cell mounting surface and electrically connecting the electrode terminals to the bus bars.