A separator for an electrochemical device of the present disclosure includes: a porous polymer substrate; and a coating layer that is provided on at least one surface of the porous polymer substrate, and includes a polymer binder and inorganic particles. The coating layer includes a first coating…
A coating composition includes a modified melamine salt and a binder. An endothermic temperature of the modified melamine salt is lower than an endothermic temperature of an unmodified melamine salt as characterized by a differential scanning calorimetry curve. A difference between the two…
A separator for a secondary battery, including a porous polymer substrate; a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a first binder polymer that interconnects and fixes the inorganic…
A separator, a preparation method, a secondary battery, and an electric device. The separator includes a first porous base film, where the first porous base film is polyolefin, and a viscosity-average molecular weight of the first porous base film is greater than or equal to 1,200,000 g/mol, such…
Provided in the present disclosure is a battery separator, including: at least one base film; at least one inorganic layer located on the base film; and a plurality of polymer particles. The plurality of polymer particles are located on the inorganic layer. The density of the polymer particles is…
The present invention provides a battery separator with a high-heat-resistant ceramic coating, wherein the battery separator comprises a base membrane and a ceramic coating coated thereon, the ceramic coating includes ceramic powder and a binder, the binder is used for binding the ceramic powder on…
The present disclosure relates to a separator for an electrochemical device, which includes a coating layer having, as a binder, a copolymer including: i) a repeating unit derived from a (meth)acrylic acid monomer, a (meth)acrylate monomer, or both thereof; ii) a repeating unit derived from an…
The present disclosure relates to a continuous process for coating microporous polyolefin webs with a ceramic composition or slurry, followed by drying at an elevated temperature while being restrained in the transverse direction. Such webs can be used to improve the manufacturability, performance…
Disclosed is a separator for an electrochemical device that includes a polymer substrate with small and uniform pores and an aqueous organic/inorganic composite porous coating layer and an adhesive coating layer and which is improved in compression resistance, and a method of making the separator…
Disclosed is a multifunctional structure comprising: a first layer comprising a first polymer and having a first surface and a second surface, and a second layer comprising an inorganic-based material deposited on at least the first surface of the first layer, wherein the structure is an…
An electrochemical device separator including a porous polymer substrate and a porous organic/inorganic composite coating layer on at least one surface of the porous polymer substrate. The porous organic/inorganic composite coating layer includes particulate binder polymers, a non-particulate…
In some implementations, a metal air battery includes an anode and a cathode opposite to the anode. The cathode may be formed as a textured carbon-based scaffold and include an opening into the metal air battery. The metal air battery may include a nano-fibrous membrane (NFM) containing a liquid…
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…
A battery separator includes a polyolefin porous membrane; and a heat-resistant porous layer provided thereon, wherein the heat-resistant porous layer contains barium sulfate particles and an organic synthetic resin component, the barium sulfate particles contain 20% by volume or less of particles…
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…
The present disclosure provides a zinc secondary battery with an improved cycle characteristic. The zinc secondary battery of the disclosure has a positive electrode layer, a covering film-attached porous film layer and a negative electrode layer in that order, with an electrolyte solution…
A porous membrane having a cross-linked ceramic coating on at least one side thereof is disclosed. The coated porous membrane may be used as a battery separator, particularly a battery separator for a lithium ion battery. The coating includes at least a cross-linker and a ceramic. The cross-linker…
A separator for an electrochemical device, including a porous polymer substrate and an inorganic coating layer on at least one surface of the porous polymer substrate. The inorganic coating layer includes inorganic particles and a binder resin. The binder resin includes a PVAc-containing first…
As a nonaqueous electrolyte secondary battery separator which has excellent heat resistance and excellent battery performance, provided is a nonaqueous electrolyte secondary battery separator including a mixed layer which contains a heat-resistant resin and a porous base material that includes a…
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…
A separator for a secondary battery including a porous separator substrate including a polymer; and a coating layer on at least one surface of the porous separator substrate. The coating layer includes a crystalline first binder and a noncrystalline second binder. The crystalline first binder and…
There is provided an LDH separator including a porous substrate and a layered double hydroxide (LDH)-like compound that fills up pores of the porous substrate. The LDH-like compound is a hydroxide and/or an oxide with a layered crystal structure, containing (i) Ti, Y, and optionally Al and/or Mg…
A flame-resistant composite separator for use in a lithium battery, wherein the composite separator comprises at least a first layer and a second layer laminated together, wherein: (A) the first layer comprises a layer of inorganic solid electrolyte (e.g., a sintered solid structure) or a layer of…
A flame-resistant polymer composite separator for use in a lithium battery, wherein the polymer composite separator comprises (a) a binder or matrix polymer; (b) 0.1% to 50% by weight of a lithium salt dispersed in the polymer; and (c) from 30% to 99% by weight of particles or fibers of an…
This application provides a separator, an electrical apparatus including the separator, and preparation methods thereof. The separator includes a coating layer containing an organic-inorganic hybrid composite compound and provides improved performance in a number of aspects, and the…
A separator for an electrochemical device having a low content of secondary particles formed by aggregation of inorganic particles in the inorganic coating layer. The separator has a low content of secondary particles protruding from the separator surface to a predetermined height. Since the…
A separator for a secondary battery, including: a porous polymer substrate having a plurality of pores; and a porous coating layer on at least one surface of the porous polymer substrate, the porous coating layer including a plurality of inorganic particles, a binder polymer and a urethane…
Provided is a solid electrolyte membrane including a porous frame including a metal or a polymer material, solid electrolyte particles covering both surfaces of the porous frame, and filling pores of the porous frame, and a binder between the solid electrolyte particles.
A lithium-sulfur battery cell includes a cathode that includes sulfur, an anode that includes lithium metal; and a bilayer membrane interposed between the cathode and the anode. The bilayer membrane includes a mixed conduction membrane layer and a lithium ion-conducting polymer electrolyte layer…
A separator including a porous polymer substrate, and a porous coating layer, and an electrochemical device comprising the same. The porous coating layer includes P(VDF-TrFE-CTFE) and PVDF-CTFE as a binder polymer. The separator has a lower resistance by changing the characteristics of the binder…