The present invention relates to a lithium secondary battery including a positive electrode, a negative electrode, a separator, which includes a coating layer including an organic binder and inorganic particles, and a gel polymer electrolyte formed by polymerization of an oligomer, wherein the organic binder and the gel polymer electrolyte are bonded by an epoxy ring-opening reaction, and a method of preparing the same.

A copolymer for constituting a polymer electrolyte for a solid-electrolyte lithium or sodium cell. A polymer electrolyte that is usable in combination with high-voltage cathode active materials and makes it possible to provide solid-electrolyte lithium or sodium cells and/or batteries having a high energy density that is sufficient even for use in electricity-based vehicles, the copolymer encompasses at least two ion-conductive polymers, the copolymer encompassing at least one polymer polymerized by ring-opening polymerization of at least one lactone and/or of at least one lactide and/or of at least one cyclic carbonate and/or of at least one cyclic carbamate and/or of at least one lactam and/or of at least one epoxide, and/or at least one polymer polymerized by radical polymerization of acrylonitrile and/or of at least one acrylonitrile derivative; and encompasses at least one polyacrylate having at least one repeating unit.

Provided is a collection of resin beads,

wherein the resin beads comprise one or more vinyl polymers having quaternary ammonium groups;

wherein cation exchange resin, if present in the collection of resin beads, is present in an amount of 0 to 0.5% by weight based on the weight of the collection of resin beads;

wherein 90 mole % or more of the quaternary ammonium groups are each associated with a hydroxide anion;

wherein sodium, if present, is present in an amount of 0-100 ppb by weight, based on the weight of the collection of resin beads.

A monolayer membrane containing gelling polymer particles having at least one of a basic functional group and an acidic functional group, and having a thickness of less than 5 μm. A composite having a porous carrier and gelling polymer particles having at least any one of a basic functional group and an acidic functional group and filling up the surface pores of the porous carrier. The invention can provide a novel material capable of efficiently separating an acid gas from a mixed gas.

A monolayer membrane containing gelling polymer particles having at least one of a basic functional group and an acidic functional group, and having a thickness of less than 5 μm. A composite having a porous carrier and gelling polymer particles having at least any one of a basic functional group and an acidic functional group and filling up the surface pores of the porous carrier. The invention can provide a novel material capable of efficiently separating an acid gas from a mixed gas.

Systems and methods which provide an aqueous gel polymer electrolyte having one or more additive therein selected to configure the aqueous gel polymer electrolyte, and batteries formed therewith, for improved performance are described. Aqueous gel polymer electrolytes may, for example, have an additive compound including boron (e.g., a borate ion-containing salt) therein to configure batteries formed using the aqueous gel polymer electrolyte to increase the ionic conductivity of the gel polymer electrolyte. The addition of borax in Zinc-ion battery gel electrolytes of embodiments is configured to enhance the dissociation of zinc ions and anions, and subsequently release more mobile zinc ions. Furthermore, the interaction between borax and divalent transition metal (Zn) in electrolyte according to embodiments may enhance the transportation of mobile zinc ions.

Systems and methods which provide an aqueous gel polymer electrolyte having one or more additive therein selected to configure the aqueous gel polymer electrolyte, and batteries formed therewith, for improved performance are described. Aqueous gel polymer electrolytes may, for example, have an additive compound including boron (e.g., a borate ion-containing salt) therein to configure batteries formed using the aqueous gel polymer electrolyte to increase the ionic conductivity of the gel polymer electrolyte. The addition of borax in Zinc-ion battery gel electrolytes of embodiments is configured to enhance the dissociation of zinc ions and anions, and subsequently release more mobile zinc ions. Furthermore, the interaction between borax and divalent transition metal (Zn) in electrolyte according to embodiments may enhance the transportation of mobile zinc ions.

The present invention relates to a solid polymer electrolyte comprising: at least one comb polymer comprising a main chain formed from 1-ethenyl- and/or 1-allyl-2,3,4,5,6-pentafluorobenzene monomers, some of the monomer units of the main chain bearing polymeric side chains based on polymers that are solvents for alkali metal or alkaline-earth metal salts; said chains being grafted in the para position of the pentafluorophenyl groups; and at least one alkali metal or alkaline-earth metal salt, in particular a lithium salt.

The invention also relates to a process for preparing a solid polymer electrolyte film and to the use thereof in an electrochemical system, in particular a lithium battery.

The present invention relates to a lithium secondary battery including a positive electrode, a negative electrode, a separator, which includes a coating layer including an organic binder and inorganic particles, and a gel polymer electrolyte formed by polymerization of an oligomer, wherein the organic binder and the gel polymer electrolyte are bonded by an epoxy ring-opening reaction, and a method of preparing the same.

A monolayer membrane containing gelling polymer particles having at least one of a basic functional group and an acidic functional group, and having a thickness of less than 5 μm. A composite having a porous carrier and gelling polymer particles having at least any one of a basic functional group and an acidic functional group and filling up the surface pores of the porous carrier. The invention can provide a novel material capable of efficiently separating an acid gas from a mixed gas.