Abstract: To provide a means for improving durability of a positive electrode for a lithium battery (in particular, a resin current collector for forming the positive electrode). The means is achieved by a positive electrode for a lithium battery having a resin current collector containing a polyolefin-based resin matrix and a conductive filler, and a positive electrode active material layer provided on the resin current collector, characterized in that an electron conductive layer is disposed on the surface of the resin current collector that is in contact with the positive electrode active material layer.

Abstract: Provided is a method for producing a lithium ion cell having an outer container composed of a resin molded article, and the method for producing a lithium ion cell includes a current collector forming process of forming, on the inner side of an outer container, each of a first electrode current collector and a second electrode current collector composed of an electrically conductive polymer composition by using a molding die.

Abstract: Provided is a lithium ion cell having a power generation part provided with a single cell obtained by stacking a positive electrode current collector, a positive electrode active material layer, a separator, a negative electrode active material layer, and a negative electrode current collector in the order, and an exterior cell container for accommodating the power generation part, in which the positive electrode active material layer is a non-bound material of a positive electrode active material particle, the negative electrode active material layer is a non-bound material of a negative electrode active material particle, and the single cell has flexibility.

Abstract: An object of the present invention is to provide a dispersant for a resin current collector which can uniformly disperse a conductive filler to attain sufficient charge and discharge characteristics without impairing the output power per unit weight of a battery. The present invention provides a dispersant for a resin current collector comprising a polymer having a resin-philic block (A1) and a conductive filler-philic block (A2).

Abstract: An object of the present invention is to provide a resin for coating an active material for lithium ion batteries which can prevent expansion of the electrode without inhibiting conduction of lithium ions. The resin for coating an active material for lithium ion batteries according to the present invention has a liquid absorbing rate of 10% or more when the resin is immersed in an electrolyte solution, and a tensile elongation at break of 10% or more when the resin is saturated with the electrolyte solution.

Abstract: An object of the present invention is to provide a dispersant for a resin current collector which can uniformly disperse a conductive filler to attain sufficient charge and discharge characteristics without impairing the output power per unit weight of a battery. The present invention provides a dispersant for a resin current collector comprising a polymer having a resin-philic block (A1) and a conductive filler-philic block (A2).

Abstract: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 ?m. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.

Abstract: The present invention provides a means for improving the output performance of a battery. An electrical connection structure of the present invention includes a current collector which includes a conductive resin layer containing a polymer material and a conductive filler and a conductive member which is in electrical contact with the conductive filler.

Abstract: A core-shell-type electrode material is used as an electrode active material layer of a non-aqueous electrolyte secondary battery, the core-shell-type electrode material having a core part including an electrode active material and a shell part in which a conductive material is contained in a base material formed by a gel-forming polymer having a tensile elongation at break of 10% or more in a gel state.

Abstract: A core-shell-type electrode material is used as an electrode active material layer of a non-aqueous electrolyte secondary battery, the core-shell-type electrode material having a core part in which at least a part of a surface of an electrode active material is coated with a first conductive material and a shell part in which a second conductive material is contained in a base material formed by a gel-forming polymer having a tensile elongation at break of 10% or more in a gel state.

Abstract: The objective of the present invention is to provide an electrode for a lithium ion battery which has excellent electron conductivity even when the thickness of the electrode is increased. The electrode for a lithium ion battery according to the present invention includes a first principal surface located on a separator side of the lithium ion battery, and a second principal surface located on a current collector side, wherein the electrode has a thickness of 50 to 5000 ?m, and the electrode includes, between the first principal surface and the second principal surface, short fibers (A) having an average fiber length of 50 nm or more and less than 100 ?m, long fibers (B) having an average fiber length of 100 ?m or more and 1000 ?m or less, and active material particles (C), and the short fibers (A) and the long fibers (B) are electroconductive fibers.

Abstract: To provide a means for improving durability of a positive electrode for a lithium battery (in particular, a resin current collector for forming the positive electrode). The means is achieved by a positive electrode for a lithium battery having a resin current collector containing a polyolefin-based resin matrix and a conductive filler, and a positive electrode active material layer provided on the resin current collector, characterized in that an electron conductive layer is disposed on the surface of the resin current collector that is in contact with the positive electrode active material layer.

Abstract: To provide a structure which allows production of an electrode, even if the film thickness of an electrode is increased; and a non-aqueous electrolyte secondary battery using the same.

Abstract: The present invention relates to a laminate type battery including: a power generating element formed by electrically laminating in series a plurality of single battery layers in which the single battery layer is formed by sequentially laminating a positive electrode current collector, a positive electrode active material layer, an electrolyte layer, a negative electrode active material layer, and a negative electrode current collector; and an outer casing body inside which the power generating element is disposed, in which at least one of the positive electrode current collector and the negative electrode current collector includes a resin layer having conductivity, and the power generating element further includes a resistance reduction layer adjacent to the resin layer at the outer surface side of the single battery layer including the resin layer.

Abstract: The present invention provides a means for improving the durability of a battery. An electrode of the present invention comprises a current collector having a conductive resin layer comprising a polymer material and a conductive filler, and an active material layer, and the electrode further includes a conductive member, which is in electrical contact with the conductive filler, between the current collector and the active material layer.

Abstract: Provided is a method for producing a lithium ion cell having an outer container composed of a resin molded article, and the method for producing a lithium ion cell includes a current collector forming process of forming, on the inner side of an outer container, each of a first electrode current collector and a second electrode current collector composed of an electrically conductive polymer composition by using a molding die.

Abstract: Provided is a lithium ion cell having a power generation part provided with a single cell obtained by stacking a positive electrode current collector, a positive electrode active material layer, a separator, a negative electrode active material layer, and a negative electrode current collector in the order, and an exterior cell container for accommodating the power generation part, in which the positive electrode active material layer is a non-bound material of a positive electrode active material particle, the negative electrode active material layer is a non-bound material of a negative electrode active material particle, and the single cell has flexibility.

Abstract: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 ?m. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.

Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer, and an electrolyte layer having an electrolyte solution containing a non-aqueous solvent. At least one of the positive electrode active material layer and the negative electrode active material layer contains an electrode material for a non-aqueous electrolyte secondary battery having a core part including an electrode active material and a shell part including a conductive material in a base material formed by a gel-forming polymer having a liquid absorption rate with respect to the electrolyte solution of 10 to 200%.

Abstract: A core-shell-type electrode material is used as an electrode active material layer of a non-aqueous electrolyte secondary battery, the core-shell-type electrode material having a core part in which at least a part of a surface of an electrode active material is coated with a first conductive material and a shell part in which a second conductive material is contained in a base material formed by a gel-forming polymer having a tensile elongation at break of 10% or more in a gel state.