Abstract: An object of the present disclosure is to provide a nonaqueous electrolyte secondary battery separator which has high heat resistance and is resistant to the detachment of a heat resistant layer. A nonaqueous electrolyte secondary battery according to an example embodiment includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The separator includes a polyolefin substrate and a heat resistant layer disposed on a side of the substrate. The heat resistant layer includes an aramid resin, and the aramid resin has a ratio (B/A) of 0.94 to 1.14 wherein A is the absorbance at a wavelength of 1318 cm?1 and B is the absorbance at a wavelength of 1650 cm?1 in an infrared absorption spectrum obtained by infrared spectroscopic measurement.

Abstract: A preparation method of a cathode slurry and a battery are provided. The preparation method includes: S1, mixing materials containing a plasticizer and an additive to form a premixed slurry A; and S2, mixing a styrene-butadiene rubber emulsion with the premixed slurry A. The plasticizer includes a first functional group including at least one of a hydroxyl group, a carbonate group, and a ketone group. The additive includes a second functional group including at least one of a carboxyl group, a nitrile group, and an amide group.

Abstract: The present invention relates to a lithium secondary battery which includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein a patterned gel polymer electrolyte layer is included on one surface or both surfaces of at least one structure of the positive electrode, the negative electrode, or the separator.

Abstract: The present invention relates to a separator, a manufacturing method therefor, and a lithium secondary battery comprising the same, the separator comprising: a porous substrate; and a porous adhesive layer formed on one surface or both surfaces of the porous substrate, wherein the porous adhesive layer comprises a nitrogen-containing binder and polyvinylidene fluoride-based polymer microparticles having an average diameter of 200 nm to 700 nm, and the total thickness of the porous adhesive layer is 1 ?m or less.

Abstract: Coating compositions for porous substrates, and/or related methods including methods of manufacture and/or of use thereof are disclosed. Also, coating compositions for porous substrates, where the coating comprises at least a polymeric binder and heat-resistant particles with or without additional additives, materials or components are disclosed.

Abstract: Disclosed herein is a separator for an electrochemical element, comprising a fibrous structure, wherein the fibrous structure has a first fibrous layer part in which short fibers and/or pulp-like fibers are intertwined with each other, and a second fibrous layer part; some of the short fibers and/or the pulp-like fibers constituting the first fibrous layer part penetrates the second fibrous layer part; and a pore diameter distribution of the fibrous structure satisfies the following formula: 0 ?m<Dmax<18 ?m, and 0 ?m?(Dmax?Dave)<13 ?m, wherein Dmax is a maximum pore diameter (?m) of the fibrous structure, and Dave is an average pore diameter (?m) of the fibrous structure.

Abstract: A polyolefin microporous membrane has a puncture elongation of not more than 2.30 mm. The temperature of the stress inflection point is not less than 80.0° C., and the stress peak value is not more than 1.8 gin thermomechanical analysis (TMA) measurement of the transverse direction of the polyolefin microporous membrane.

Abstract: A carbon-sulfur composite including a carbonized metal-organic framework (MOF); and a sulfur compound introduced to at least a part of an outside surface and an inside of the carbonized metal-organic framework, wherein the carbonized metal-organic framework has a specific surface area of 2500 m2/g to 4000 m2/g, and the carbonized metal-organic framework has a pore volume of 0.1 cc/g to 10 cc/g, and a method for preparing the same.

Abstract: A rechargeable battery, an electrode assembly, and an electrode assembly manufacturing method are disclosed. The electrode assembly includes: a separator configured to include a first insertion portion formed in a first direction and a second insertion portion formed in a second direction, which are alternatively stacked; a first electrode inserted into the first insertion portion; a second electrode inserted into the second insertion portion while the separator is disposed between the first electrode and the second electrode; a sealing portion configured to bond opposite surfaces of the separator into which the first electrode and the second electrode are inserted with the separator interposed therebetween; and a lead tab configured to include a first current collecting tab connected to the first electrode and a second current collecting tab connected to the second electrode.

Abstract: The present disclosure provides a polymer separator and preparation method thereof, and a lithium-ion battery including the polymer separator and preparation method thereof. The polymer separator includes a porous substrate, a hydrophilic blocking layer, and a porous polar polymer bonding layer. The hydrophilic blocking layer is disposed between the porous substrate and the porous polar polymer bonding layer. Pore walls in the porous polar polymer bonding layer are provided with node structures.

Abstract: A gel polymer electrolyte (GPE) composition and a method of forming the same are provided. The GPE includes a polymer network and an electrolyte composition comprising a deep eutectic solvent (DES) having a eutectic point of less than or equal to 25° C. An electrochemical cell including a GPE and a method of forming the same are also provided.

Abstract: The present invention relates to a separator, a method of manufacturing the separator, and an electrochemical device including the separator. An embodiment of the present invention may provide a separator including: a porous substrate; an inorganic particle layer provided on at least one surface of the porous substrate; and a heat fusion layer provided on at least one surface of the inorganic particle layer, wherein a surface gloss value at 60° C. of a surface of the heat fusion layer is 10 GU or more.

Abstract: This separator for a power storage device has a porous layer containing a polyolefin resin and surface-treated ionic compound. The ionic compound content of the porous layer is 5 to 99 mass %, and the degree of surface hydrophilicity of the ionic compound is 0.10 to 0.80.

Abstract: The present disclosure relates to a separator for a lithium metal battery and a lithium ion secondary battery including the same. The separator is provided with a porous coating layer including a high content of binder resin. The content of binder resin in the porous coating layer is 25 wt % or more based on 100 wt % of the porous coating layer, and the porous coating layer faces a negative electrode.

Abstract: An optical fiber connecting component includes a glass plate having a plurality of first through holes, a resin ferrule fixed to the glass plate and having a plurality of second through holes that are each coaxial with corresponding one of the plurality of first through holes, and a plurality of optical fibers including a glass fiber and a resin coating that covers the glass fiber. The glass fiber exposed from a tip of each of the optical fibers is held in corresponding one of the first through holes and corresponding one of the second through holes, and a material for the resin ferrule has a flexural modulus of 5 GPa or more at 200° C.

Abstract: The present disclosure relates to a separator and an electrochemical device including the same. The separator includes a porous coating layer formed on at least one surface of the porous polymer substrate, wherein the porous coating layer includes, as a binder polymer, an amorphous adhesive binder polymer, and at least one fluorinated binder polymer. It is possible to provide a separator which shows low resistance and significantly improved adhesion to an electrode, and an electrochemical device including the same.

Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator, the separator including a porous substrate, and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a heat resistant binder including a (meth)acryl copolymer including a first structural unit and a second structural unit, the first structural unit being a structural unit of a (meth)acrylamide and the second structural unit being a structural unit of a (meth)acrylic acid, a (meth)acrylate, a (meth)acrylonitrile, a (meth)acrylamido sulfonic acid, a (meth)acrylamido sulfonate salt, or a combination thereof; polyethylene particles; and first inorganic particles, and an average particle size (D50) of the first inorganic particles is larger than an average particle size (D50) of the polyethylene particles.

Abstract: A coating solution for lithium ion battery separators which comprises inorganic particles, an organic polymer binder and carboxymethyl cellulose having an etherification rate of 1.10 to 2.00 or a salt thereof, or a coating solution for lithium ion battery separators comprising inorganic particles containing magnesium hydroxide having a linseed oil absorption of 30 to 80 (g/100 g), and a separator having a coating layer formed from the coating solution on a substrate and high safety and low internal resistance.

Abstract: An electrochemical cell having one or more electrodes with TMCCC materials introduces improved performance by including a special separator having ceramics and/or a discrete multilayer construction. TMCCC materials with no surface modifications, and existing electrolytes with no composition modifications are combined with a different grade of separator to improve cell performance.

Abstract: The disclosure provides a battery and methods for making and using the battery. The battery includes (a) a separator that is woven and porous, and (b) a graphene oxide (GO) nanosheet coating coupled to a surface of the separator. The GO nanosheet coating is configured as a buffer layer to permit transport of Li-ions therethrough and to regulate a rate of flow of the transport of the Li-ions.

Abstract: The present application relates to an electrochemical device. Specifically, the present application provides a cell, wherein the cell is formed by winding or stacking a first electrode and a second electrode which are arranged at an interval, and a separator is disposed between the first electrode and the second electrode. Wherein the first electrode includes a first current collector, and the first current collector includes a coated region coated with a first active material and an uncoated region without the first active material; the uncoated region is at least partially provided with an insulating layer. The adhesion between the insulating layer and the first current collector is not less than about 0.5 N/m. The electrochemical device provided by the present application has improved safety performance.

Abstract: A separator including a porous substrate layer, an intermediate layer, and a ceramic coating layer is provided. The ceramic coating layer is disposed on a side of the intermediate layer away from the porous substrate layer. The intermediate layer includes a metal oxide powder. The particle diameter of the metal oxide powder is less than the pore diameter of the porous substrate layer, and at least a portion of the metal oxide powder is embedded in the porous substrate layer. A method of preparing the separator and a lithium-ion battery including the separator are also provided.

Abstract: A separator for power storage devices includes a synthetic resin film having minute pore portions, the separator having an air resistance of 30 sec/100 mL/16 ?m or more and 100 sec/100 mL/16 ?m or less, and a first scattering peak in a stretching direction measured by small-angle X-ray scattering measurement (SAXS) present in a range where a scattering vector is 0.0030 nm?1 or more and 0.0080 nm?1 or less.

Abstract: A particle-dispersed polyimide precursor solution contains: a polyimide precursor consisting of a polymer of a tetracarboxylic dianhydride and a diamine containing a fluorene-based diamine having a fluorene skeleton; particles; and an aqueous solvent containing water.

Abstract: A metal-ion deposition regulator to regulate the flux and deposition of metal ions in an electrochemical cell. The regulator containing two membranes made of a polymer and a plurality of two-dimensional porous nanosheets sandwiched between the two membranes. The regulator is capable of distributing flux of metal ions passing through the metal-ion deposition regulator and regulating the deposition of the metal ions onto the cathode or anode thereby suppressing dendrite growth in the electrochemical cell. An electrochemical cell containing an anode, a cathode, a liquid electrolyte, and a metal-ion deposition regulator. A method of making a metal-ion deposition regulator. The method includes fabricating two-dimensional porous nanosheets utilizing graphene oxide as an expendable template, and sandwiching the porous nanosheets between two membranes made of a polymer such that the nanosheets are in contact with the two membranes.

Abstract: In a nonaqueous electrolyte secondary battery, a separator includes a substrate, a first filler layer containing phosphate salt particles, and a second filler layer interposed between the substrate and the first filler layer and containing inorganic particles. The separator is disposed between a positive electrode and a negative electrode in such a manner that the first filler layer and the second filler layer are directed to the positive electrode side. Further, a resin layer is disposed between the positive electrode and the first filler layer.

Abstract: A battery separator and a preparation method therefor are provided. The separator includes a lithium ion battery separator substrate and an inorganic coating, the lithium ion battery separator substrate consists of a support layer and a dense layer, and the inorganic coating is coated on the dense layer; the separator has excellent high-temperature resistance, and still has good strength retention and the heat shrinkage rate thereof is no more than 2% after treatment at 300° C. for 1 h, and thus ensures the stability and isolation of the rigid structure of the separator coating at high temperatures; the substrate has a uniform and compact double-layer structure, effectively controls phenomena such as pinholes and filler particles fall-off in a subsequent coating process, and meets the requirements of lithium ion battery separators with respect to heat resistance, porosity and strength, thus having excellent comprehensive performance.

Abstract: Disclosed is a rapidly rechargeable lithium secondary battery. The present invention provides a negative electrode for a lithium secondary battery, the negative electrode being characterized by including: a current collector; a negative electrode material layer which is formed on the current collector and includes negative electrode active material particles, conductive material particles, and a binder; and a surface layer which is formed on the surface of the negative electrode material layer, is formed of insulating particles that are inert with respect to lithium, and partially shields the negative electrode material layer. According to the present invention, a negative electrode for a lithium secondary battery having a high charging speed without lifetime degradation can be provided.

Abstract: Provided is a non-aqueous electrolyte secondary battery that can be produced while mixing at an interface between a positive electrode active material layer and a heat resistant layer is restricted even if a positive electrode slurry and a heat resistant layer slurry are simultaneously applied. The non-aqueous electrolyte secondary battery disclosed here includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector, a positive electrode active material layer formed on the positive electrode current collector, and a heat resistant layer which is formed on the positive electrode current collector and is adjacent to the positive electrode active material layer. The positive electrode active material layer contains a positive electrode active material. The positive electrode active material is porous particles in which primary particles are aggregated.

Abstract: A photochromic curable composition comprising a radically polymerizable monomer having at least one oxetanyl group in one molecule, a photochromic compound and radically polymerizable monomers other than the above polymerizable monomer, and a photochromic cured body obtained by polymerizing the photochromic curable composition.

Abstract: A flame retardant separator for secondary batteries, and more particularly, a flame retardant separator for secondary batteries comprising or coated with a metal hydroxide having a low Gibbs free energy among polymorphs of a metal hydroxide used as an inorganic flame retardant.

Abstract: According to one embodiment, a separator is provided. The separator includes a composite membrane. The composite membrane includes a substrate layer, a first composite layer, and a second composite layer. The first composite layer is located on one surface of the substrate layer. The second composite layer is located on the other surface of the substrate layer. The composite membrane has a coefficient of air permeability of 1×10?14 m2 or less. The first composite layer has a first surface and a second surface. The first surface is in contact with the substrate layer. The second surface is located on an opposite side to the first surface. Denseness of a portion including the first surface is lower than denseness of a portion including the second surface in the first composite layer.

Abstract: A composite membrane with nanostructured inorganic and organic phases is applied as an ion-selective layer to prove processability, prevent dendrite shorting, and increase power output of lithium-metal anodes through better Li-ion conductivity. Nanoconfinement, as opposed to macroscale confinement, is known to dramatically alter the properties of bulk materials. Control over a ceramic's size, shape, and properties is achieved with polymer templates. This is a new composition of matter and unique approach to composite membrane design.

Abstract: Separators, materials, and processes for producing electrochemical cells, for example, lithium (Li) metal batteries, and electrochemical cells produced therefrom. Such a separator includes a permeable membrane formed of a first polymer that is hydrophobic and has oppositely-disposed first and second surfaces, a second polymer that is hydrophilic and is incorporated into the first surface of the first polymer so that the first surface of the first polymer is a hydrophilic surface, and a conductive composite layer on the hydrophilic surface. The composite layer contains at least one layer of a carbonaceous material and an aqueous binder that binds the carbonaceous material together and to the hydrophilic.

Abstract: A separator includes a substrate, a first layer on the substrate, the first layer including LiFePO4 (LFP) particles, and a second layer on the substrate, the second layer including organic particles having a melting point in a range of about 100° C. to about 130° C.

Abstract: A carbon-sulfur composite including a carbonized metal-organic framework (MOF); and a sulfur compound introduced to at least a part of an outside surface and an inside of the carbonized metal-organic framework, wherein the carbonized metal-organic framework has a specific surface area of 1000 m2/g to 4000 m2/g, and the carbonized metal-organic framework has a pore volume of 0.1 cc/g to 10 cc/g, and a method for preparing the same.

Abstract: Provided is an all-solid-state battery with high charge-discharge efficiency. Disclosed is an all-solid-state battery, wherein the all-solid-state battery comprises a cathode comprising a cathode layer, an anode comprising an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer; wherein the anode layer contains at least one selected from the group consisting of a lithium metal and a lithium alloy; and wherein a protective layer comprising a composite metal oxide represented by Li-M-O (where M is at least one metal element selected from the group consisting of Mg, Au, Al and Sn) is disposed between the anode layer and the solid electrolyte layer.

Abstract: A composite separator includes: a porous substrate; and a composite electrolyte on a surface of the porous substrate, the composite electrolyte including block copolymer, an ionic liquid, and a particle, wherein a size of the particle is larger than a pore size of the porous substrate, the particle includes an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, and the particle has a particle size of greater than about 1 micrometer to about 100 micrometers.

Abstract: Disclosed is a composition for non-aqueous secondary battery functional layer which comprises non-conductive particles; a water-soluble polymer having a degree of swelling in electrolyte solution of greater than 1.0 time and 2.0 times or less; and a water-insoluble polymer having a volume-average particle diameter of 0.01 ?m or more and 0.30 ?m or less.

Abstract: To provide a separator which has a combination of a preferable air permeability enabling high prevention of internal short circuit and a high retention rate of such an air permeability in an electrolytic solution, and has more improved uniformity of the air permeability. A separator comprising a porous sheet and cellulose nanofibers, wherein the porous sheet comprises a binder component having the SP value of 11 to 16 (cal/cm3)1/2, and the porous sheet has the cellulose nanofibers at the inside and on the surface thereof, and wherein the cellulose nanofibers are combined with the porous sheet by fusion of the binder component.

Abstract: New and/or improved coatings for porous substrates, including battery separators or separator membranes, and/or coated porous substrates, including coated battery separators, and/or batteries or cells including such coatings or coated separators, and/or related methods including methods of manufacture and/or of use thereof are disclosed. Also, new or improved coatings for porous substrates, including battery separators, which comprise at least a polymeric binder and heat-resistant particles with or without additional additives, materials or components, and/or to new or improved coated porous substrates, including battery separators, where the coating comprises at least a polymeric binder and heat-resistant particles with or without additional additives, materials or components are disclosed.

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that has excellent heat shrinkage resistance and adhesiveness after immersion in electrolyte solution and that can cause a non-aqueous secondary battery to display excellent cycle characteristics. The composition for a functional layer contains first organic particles, second organic particles, and a solvent. The first organic particles include a polyfunctional ethylenically unsaturated monomer unit in a proportion of not less than 20 mass % and not more than 90 mass %. The second organic particles include a nitrile group-containing monomer unit in a proportion of not less than 20 mass % and not more than 80 mass % and a cross-linkable monomer unit in a proportion of not less than 0.1 mass % and not more than 10 mass %.

Abstract: A composition for a non-aqueous secondary battery functional layer including a particulate polymer, wherein the particulate polymer is a copolymer containing 20% by weight or more and 80% by weight or less of an aromatic monovinyl monomer unit; and 0.01% by weight or more and 2% by weight or less of a polyvalent ethylenically unsaturated crosslinkable monomer unit, a volume-average particle diameter D of the particulate polymer is 0.5 ?m or more and 5 ?m or less, and a swelling degree of the particulate polymer to an electrolyte solution is more than 1 time and 3 times or less; and a non-aqueous secondary battery including the same.

Abstract: The present invention relates to a curable composition for preparing a composite polymer electrode, the curable composition containing: A) a Li-ion conducting solid electrolyte whose general composition has the formula: Li7+x?yMIIxMIII3?xMIV2?yO12 wherein MII, MIII, MIV, MV are species of valence II to V; where 0?x<3, preferably 0?x?2; and 0?y<2 preferably 0?y?1; (B) a polymer; (C) a lithium salt; (D) an active plasticizer; and (E) a photoinitiator. The invention also relates to a process of preparing the curable composition, cured compositions and films derived from the curable composition, and solid-state lithium batteries whose solid electrolyte layer contains a cured composition or a cured film according to the invention.

Abstract: A porous separator including a porous layer including plate-type inorganic particles, and a first binder polymer located on a part of or all surfaces of the plate-type inorganic particles, wherein the first binder polymer connects and fixes the plate-type inorganic particles, and an electrochemical device including the same.

Abstract: A method for manufacturing a solid-state battery includes: an electrode material filling step of filling a plurality of holes of a porous conductive base material with an active material contained in an electrode slurry so as to form a first electrode body, by dipping the porous conductive base material having the plurality of holes into the electrode slurry; a solid electrolyte material coating step of coating a surface with a solid electrolyte material contained in a solid-electrolyte slurry by dipping at least one of the first electrode body or a second electrode body having a polarity different from that of the first electrode body into the solid-electrolyte slurry; and a solid-state battery laminating step of obtaining a solid-state battery by laminating and pressing the first electrode body and the second electrode body.

Abstract: The invention provides a novel ceramic-metal oxide-polymer composite material. A functionalized metal oxide nanolayer coating can be bonded between LICGCs and polymers/oligomers, which protects the LICGC from corrosion, has a low interfacial resistance to Li+ migration, and can be a SIC. Hybrid ceramic-polymer electrolytes were formed by engineering the interface between a LICGC and a polymer, polyethylene oxide (PEO), by sputter coating a 200 nm thick SiO2 layer onto a lithium ion conducting glass ceramic (LICGC) and silanating the SiO2 with a functionalized PEG in the presence of LiTFSI. A low interfacial resistance (Rinterfacial) was measured, the same as that obtained for a SiO2 interface soaked with liquid tetraglyme/LiTFSI. The pegylated SiO2 interface (unlike the tetraglyme/LiTFSI interface) protected the LICGC from corrosion by Li0 metal. The (PEG-LiTFSI)—SiO2-LICGC could be bonded with polyethylene oxide/LiTFSI.

Abstract: The present application provides a separator comprising a first porous substrate, a second porous substrate and a first coating layer including a substance that reversibly intercalates and deintercalates lithium and a first inorganic particle, and an electrochemical device, wherein the first coating layer is disposed between the first porous substrate and the second porous substrate. By disposing the first coating layer between the first porous substrate and the second porous substrate, the present application improves the safety performance, rate performance and cycle performance of the electrochemical device.

Abstract: An energy storage apparatus is described and claimed herein comprising, generally, a battery housing enclosing a negative electrode, a positive electrode, and an electrolyte, wherein the electrolyte comprises a salt dissolved in either an amide-based solvent. In various embodiments, the amide-based solvent is a tertiary amide. Moreover, the energy storage apparatus may be a lithium ion battery that comprises an electrolyte with a lithium salt dissolved in a tertiary amide.

Abstract: The present invention relates to a separator for a lithium secondary battery, which includes a porous substrate, and a lithium metal layer formed on one side of the porous substrate, wherein the lithium metal layer is formed on an outer circumferential surface of the porous substrate and has a window frame shape with an empty interior, and a lithium secondary battery including the same.