Abstract: A busbar disclosed herein includes: a first metallic member including a first plate portion; a second metallic member including a second plate portion; a swaged joint formed by plastically deforming the first plate portion of the first metallic member and the second plate portion of the second metallic member such that the first plate portion and the second plate portion are swaged together; and a metal joint formed by metal-joining the first plate portion of the first metallic member to the second plate portion of the second metallic member.

Abstract: In a secondary battery, a lid member and a negative terminal are integrated through a resin. The negative terminal includes a first member and a second member. A first bonded surface of a lower surface of the first member is bonded to a second bonded surface of an upper surface of the second member. The first member includes a projecting portion at an outer peripheral edge of the lower surface of the first member. The second member includes a chamfered portion at an outer peripheral edge of the upper surface of the second member. The projecting portion and the chamfered portion are combined with each other so that the projecting portion contacts the chamfered portion.

Abstract: A lid body includes a terminal member of at least one of a positive electrode and a negative electrode, a sealing plate including an attachment hole for attaching the terminal member, and a sealing material containing a thermoplastic resin and an inorganic filler. The terminal member is inserted into the attachment hole and attached to the sealing plate in a state in which the sealing material is joined to a peripheral portion of the attachment hole. Here, as the inorganic filler, an inorganic substance having a volume change rate of 20% or less after being immersed for 7 days in a test electrolyte, which is prepared at 65° C., and which contains 1200 ppm of water and 1 M of LiPF6, and moreover in which a volume ratio of a solvent thereof satisfies a relationship of ethylene carbonate:diethyl carbonate:dimethyl carbonate=1:1:1, is used.

Abstract: Provided is a lid body including: a terminal member being mainly made up of a first metal; a sealing plate mainly made up of a second metal; and a sealing material. The sealing plate has a mounting hole for attaching the terminal member. The terminal member is inserted into the mounting hole and is attached to the sealing plate in a state where the sealing material is joined to a peripheral edge portion of the mounting hole. With as ?S a coefficient of linear expansion at 25° C. of the sealing material, ?1 as a coefficient of linear expansion at 25° C. of the first metal and ?2 as a coefficient of linear expansion at 25° C. of the second metal, ?L??S??H is satisfied, where ?H is the higher value and ?L is the lower value from among the ?1 and ?2.

Abstract: A lid body including: a terminal member of at least one electrode; a sealing plate having a mounting hole for attaching the terminal member; and a sealing material containing an inorganic filler. The terminal member is inserted into the mounting hole and is attached to the sealing plate in a state where the sealing material is joined to a peripheral edge portion of the mounting hole. In a microscope observation of a cross section of the sealing material, an average aspect ratio of the inorganic filler is 2 or higher, and with an average orientation angle of the inorganic filler is 30 degrees or smaller, in at least the sealing material formed on an outer surface of the sealing plate.

Abstract: In a method of manufacturing a lithium-ion secondary battery electrode sheet proposed herein, a current collector (11), a powder material (13) of granulated particles, and a binder solution (12) are prepared. The binder solution (12) is applied onto the current collector (11). Subsequently, the powder material (13) of the granulated particles is fed onto the current collector (11). (Then, the powder material (13) of the granulated particles is pressed against the current collector (11). In the basic manufacturing method, adhesive strength of the powder material (13) of the granulated particles is enhanced after the powder material (13) of the granulated particles is fed onto the current collector (11) and before or while the powder material (13) of the granulated particles is pressed against the current collector (11).

Abstract: A method of manufacturing a non-aqueous electrolyte secondary battery proposed herein includes a first binder supplying step (101), an active material supplying step (102), a second binder supplying step (103), and a pressing step (105). The first binder supplying step (101) is a step of applying a binder solution (122) to a current collector foil (121). The active material supplying step (102) is a step of supplying active material particles (123) onto the current collector foil (121) coated with the binder solution (122). The second binder supplying step (103) is a step of supplying the binder solution (122) onto the active material particles (123). The pressing step (105) is a step of pressing a layer of the active material particles (123) on the current collector foil (121).

Abstract: An electrode for a non-aqueous secondary battery includes a current collector foil, and an electrode mixture layer provided on the current collector foil. The electrode mixture layer includes powder particles. The powder particles contain any one of metals or a metallic compound of zirconium, hafnium, zirconium carbide, hafnium carbide, and tungsten carbide as a conductive material.

Abstract: In a method of manufacturing a lithium-ion secondary battery electrode sheet proposed herein, a current collector (11), a powder material (13) of granulated particles, and a binder solution (12) are prepared. The binder solution (12) is applied onto the current collector (11). Subsequently, the powder material (13) of the granulated particles is fed onto the current collector (11). (Then, the powder material (13) of the granulated particles is pressed against the current collector (11). In the basic manufacturing method, adhesive strength of the powder material (13) of the granulated particles is enhanced after the powder material (13) of the granulated particles is fed onto the current collector (11) and before or while the powder material (13) of the granulated particles is pressed against the current collector (11).

Abstract: The method for manufacturing a lithium ion secondary battery includes a binder coating step (18), a mixture supplying step (20), a magnetic field applying step (22), and a convection generating step (24). The binder coating step (18) is a step of coating a slurry-form binder (18a) on a metal foil (12a) (collector). The mixture supplying step (20) is a step of supplying a negative electrode mixture containing graphite so as to be superposed on the slurry-form binder (18a) coated on the metal foil (12a) in the binder coating step (18). The magnetic field applying step (22) is a step of applying a magnetic field having magnetic lines of force pointing in the direction orthogonal to the metal foil (12a), to the negative electrode mixture (20a) coated on the metal foil (12a) in the mixture supplying step (20).

Abstract: A lithium-ion secondary battery has an electrode sheet having a current collecting foil formed thereon with a mixture layer containing powdered mixture particles. On the current collecting foil, there are provided a binder coated section on which a binder layer is formed having patterned markings; and a binder non-coated section on which a binder layer is not formed. The mixture particles contain at least an electrode active material and a binder. The mixture layer is formed on the binder coated section and the binder non-coated section.

Abstract: A method for manufacturing a lithium ion secondary battery having electrodes in which a mix layer including a first binder and one of a positive electrode active material and a negative electrode active material is formed via a second binder on a collector. The method includes: performing pattern coating of the second binder on the surface of the collector and regularly forming binder-coated sections and uncoated sections; and feeding a powder of mix particles on the binder-coated sections and the uncoated sections so as to form the mix layer on the collector.

Abstract: A method of manufacturing a non-aqueous electrolyte secondary battery proposed herein includes a first binder supplying step (101), an active material supplying step (102), a second binder supplying step (103), and a pressing step (105). The first binder supplying step (101) is a step of applying a binder solution (122) to a current collector foil (121). The active material supplying step (102) is a step of supplying active material particles (123) onto the current collector foil (121) coated with the binder solution (122). The second binder supplying step (103) is a step of supplying the binder solution (122) onto the active material particles (123). The pressing step (105) is a step of pressing a layer of the active material particles (123) on the current collector foil (121).

Abstract: An electrode for a non-aqueous secondary battery includes a current collector foil, and an electrode mixture layer provided on the current collector foil. The electrode mixture layer includes powder particles. The powder particles contain any one of metals or a metallic compound of zirconium, hafnium, zirconium carbide, hafnium carbide, and tungsten carbide as a conductive material.

Abstract: The present invention provides a method for manufacturing a battery electrode. This method comprises the steps of applying a binder solution 50 that contains a binder 54 and is adjusted so that the contact angle of the binder solution 50 with the surface of a current collector 10 is 73° or less, to form a binder solution layer 56; applying a mixed material paste 40 containing an active material 22 on top of the binder solution layer 56, to deposit both the binder solution layer 56 and a mixed material paste layer 46 on the current collector 10; and obtaining an electrode 30 in which a mixed material layer 20 is formed on the current collector 10, by drying the deposited binder solution layer 56 and mixed material paste layer 46 together.

Abstract: According to the present invention, provided is a method for producing a battery electrode employing a configuration in which a compound material layer containing an active material 22 and a binder 54 is retained on a current collector 10. The formation of the compound material layer is carried out by a method including: a step of forming a binder solution layer 56 by applying a binder solution 50 containing the first binder 54 to the current collector 10; a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying the compound material paste 40 over the binder solution layer 56; and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the binder solution layer 56 and the compound material paste 40.

Abstract: A lithium-ion secondary battery has an electrode sheet having a current collecting foil formed thereon with a mixture layer containing powdered mixture particles. On the current collecting foil, there are provided a binder coated section on which a binder layer is formed having patterned markings; and a binder non-coated section on which a binder layer is not formed. The mixture particles contain at least an electrode active material and a binder. The mixture layer is formed on the binder coated section and the binder non-coated section.

Abstract: The secondary battery according to the present invention includes an electrode (10) having: an electrode current collector (12), an electrode active material layer (14) formed on the surface of the electrode current collector (12), an electrically conductive film (16) that covers the surface of the electrode active material layer (14), and an electrical conductor part (18) for forming a direct electrical connection between the electrically conductive film (16) and the electrode current collector (12) by going around the electrode active material layer (14).

Abstract: The objective of the present invention is to provide an unexpected method of manufacturing a battery electrode and a coating die for use therein, both of which are capable of providing a high speed drying and of improving a peel strength between a collector and a compound. The manufacturing process S1 of manufacturing the battery electrode 1 includes the process of coating the compound 3 containing the electrode active material 4 and the binder 5 on the sheet collector 2 and the process of drying the compound 3 to bond the collector 2 and the compound 3, wherein in the coating process, a laser light is emitted to the interface between the compound 3 and the collector 2. Due to the above structure, regardless of the drying speed, the binder 5 contained in the compound 3 is crystallized at the interface with respect to the collector 2. As a result, the high speed drying is provided and the peel strength between the collector 2 and the compound 3 is improved.

Abstract: A method is provided for producing a battery electrode having a configuration in which a compound material layer containing an active material and a binder is retained on a current collector. This method includes forming protrusions composed of a polymer on a surface of the current collector, forming a binder solution layer by coating a binder solution containing the binder over the polymer protrusions onto the current collector, depositing the binder solution layer and a compound material paste layer on the current collector by applying a compound material paste containing the active material over the binder solution layer, and obtaining an electrode in which the compound material layer is formed on the current collector by drying both the deposited binder solution layer and compound material paste layer.