摘要:
Provided is a method of manufacturing an electrode assembly which is different from a stack folding method and a stack method. The method includes forming a unit structure, which comprises a stacked structure formed by sequentially stacking a first electrode, a first separator, a second electrode, and a second separator, or a structure formed by repeatedly forming the stacked structure a plurality of times (operation S10), forming the electrode assembly by repeatedly stacking the unit structure into a plurality of layers (operation S20), and discharging gas interposed between the layers by pressing the electrode assembly (operation S30).
摘要:
Disclosed is a method for manufacturing a separator for an electrochemical device. The method contributes to formation of a separator with good bondability to electrodes and prevents inorganic particles from detaching during an assembling process of an electrochemical device.
摘要:
Solid polymer electrolyte containing A: a thermoplastic elastomer containing polyester, polyamide or diamide hard blocks and ionically conductive soft blocks and B: a metal salt and less than 15 wt. % of a plasticizer. The electrolyte may be used as a spacer in a battery, a binder in an electrode and an adhesive film between a spacer and at least one electrode of a battery.
摘要:
An electrical insulator and its related battery are disclosed in the present invention. The electrical insulator includes a separation region and a supporting region. The supporting region is disposed and covers the peripheral surface and at least a part of the lateral surface of the separation region. The battery includes the electrical insulator mentioned above. The electrical insulator is disposed between active material layers and contacts with the active material layers directly. The cathode and the anode active material layers are completely electrical isolated because the electrical insulator totally covers at least one active material layer orthographically. Hence, the inner short of the battery may be prevented.
摘要:
Provided is a composition for a non-aqueous secondary battery functional layer capable of forming a functional layer for a non-aqueous secondary battery that can provide a battery component with high blocking resistance and cause excellent adhesiveness to be displayed before and after immersion in electrolysis solution. The composition contains a particulate polymer having a core-shell structure including a core portion and a shell portion partially covering an outer surface thereof. The core portion is formed by a polymer having a glass transition temperature of -50°C to 60°C and a degree of swelling in electrolysis solution of at least a factor of 5 and no greater than a factor of 30. The shell portion is formed by a polymer having a glass transition temperature of 50°C to 200°C and a degree of swelling in electrolysis solution of greater than a factor of 1 and no greater than a factor of 4.
摘要:
Disclosed are porous substrate and a coating layer positioned on one side or both sides of the porous substrate, wherein the coating layer includes a filler (A) having an average particle diameter of about 0.3 µm to about 2 µm; and a binder (B) including an organic polymer and an inorganic particle, an organic particle, or a combination thereof, wherein an average particle diameter of each of the inorganic particle and the organic particle is about 5 nm to about 200 nm, and a rechargeable lithium battery including the separator.
摘要:
An electrode wound element for a non-aqueous electrolyte rechargeable battery includes a belt-shaped positive electrode; a belt-shaped negative electrode; a belt-shaped porous layer between the belt-shaped positive electrode and the belt-shaped negative electrode; and an adhesive layer formed on the surface of the belt-shaped porous layer, wherein the adhesive layer includes a fluorine resin-containing particulate; a binder supporting the fluorine resin-containing particulate and having a total volume which is that of the fluorine resin-containing particulate; and a heat-resistance filler particle showing a filling ratio of 40% or greater when being compressed with 1 MPa.
摘要:
Disclosed herein is a stacked/folded type electrode assembly configured to have a structure in which two or more unit cells, each of which includes a separator disposed between a positive electrode and a negative electrode, each having an electrode mixture including an electrode active material applied to a current collector, are wound using a sheet type separation film, wherein the positive electrode is configured to have a structure in which a positive electrode mixture is coated on an aluminum foil as the current collector and the negative electrode is configured to have a structure in which a negative electrode mixture is coated on a metal foil, other than the aluminum foil, as the current collector, the unit cells include one or more full-cells and/or bi-cells, one of the unit cells located at each outermost side of the electrode assembly is configured such that one outermost electrode of the unit cell is a single-sided electrode, the single-sided electrode being configured such that the electrode mixture is applied only to one major surface of the current collector facing the separator, and the separation film has higher elongation than the separator.
摘要:
A sheet-laminated lithium ion secondary battery comprising: a membrane electrode assembly which comprises a cathode sheet comprising a cathode current collector having formed thereon a cathode active material layer, and an anode sheet comprising an anode current collector having formed thereon an anode active material layer, the cathode sheet and the anode sheet being laminated through a separator; and a sheet outer casing having accommodated therein the membrane electrode assembly, wherein, in the membrane electrode assembly, a sheet thermoplastic resin layer is inserted as at least one of an interlayer between the cathode sheet and the separator, and an interlayer between the anode sheet and the separator.
摘要:
A secondary battery porous membrane, manufactured by a slurry for secondary battery porous membrane, which is superior in coating priority and dispersibility of non-conductive organic particles, which improves cycle characteristic of the obtained secondary battery, which has high flexibility and can prevent powder falls, and which has less content of moisture amount; and non-conductive organic particles, which can be suitably used as a secondary battery porous membrane and has less content of metallic foreign particles. The slurry for secondary battery porous membrane comprises; a binder including a polymerized unit of vinyl monomer having a hydrophilic acid group, a non-conductive organic particle having a functional group, cross-linkable with the hydrophilic acid group and a solvent.