Abstract: [Problem] To provide a conductive resin composition for electrodes which is excellent in dispersibility and oxidation resistance. To provide: an electrode composition employing the conductive resin composition for electrodes and having a low viscosity; an electrode employing the electrode composition and having a low electrode plate resistance; and a lithium ion battery having a high energy density, high output characteristics and a high cyclability.

Abstract: Provided is a binder composition for a non-aqueous secondary battery functional layer that enables production of a composition for a non-aqueous secondary battery functional layer that has excellent stability and can cause a non-aqueous secondary battery to display excellent cycle characteristics. The binder composition contains a water-soluble polymer and water. The water-soluble polymer has a contact angle with water of at least 40° and not more than 80° and has a degree of swelling in electrolyte solution of more than a factor of 1.0 and not more than a factor of 3.0.

Abstract: The adhesion between metal foil serving as a current collector and a negative electrode active material is increased to enable long-term reliability. An electrode active material layer (including a negative electrode active material or a positive electrode active material) is formed over a base, a metal film is formed over the electrode active material layer by sputtering, and then the base and the electrode active material layer are separated at the interface therebetween; thus, an electrode is formed. The electrode active material particles in contact with the metal film are bonded by being covered with the metal film formed by the sputtering. The electrode active material is used for at least one of a pair of electrodes (a negative electrode or a positive electrode) in a lithium-ion secondary battery.

Abstract: Provided are a binder composition for a solid electrolyte battery and a slurry composition for a solid electrolyte battery that have excellent processability and can cause a solid electrolyte battery to display excellent battery characteristics. The binder composition contains a particulate polymer of a copolymer including an acrylate monomer unit and an aromatic monomer unit, alkyl-modified cellulose represented by formula (I), and an organic solvent. In formula (I), R1, R2, and R3 each indicate a hydrogen atom or an alkyl group having a carbon number of at least 1 and not more than 4. At least two of R1, R2, and R3 are alkyl groups having a carbon number of at least 2 and not more than 4 in 50 mol % or more of all repeating units. Also, n indicates a natural number.

Abstract: A composite cathode is provided which includes a collector, an active cathode material, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte. The solid inorganic lithium ion conductor is present in the composite cathode in a higher volume and weight proportion than the liquid electrolyte. A method for forming the composite cathode is also provided, and a lithium ion battery is provided which includes a composite cathode having a collector, an active cathode material, a binder, a solid inorganic lithium ion conductor and a liquid electrolyte.

Abstract: A Li-ion battery includes a cathode; an anode having a primary active material, conductive carbon, binder, and reserve material; and a separator between the cathode and anode. The reserve material has a reaction potential between a lithium reaction potential and a primary active material reaction potential. The reserve material is configured to intercalate with lithium at the reaction potential responsive to the primary active material being fully intercalated to inhibit lithium plating on the anode.

Abstract: A negative active material including an active material core; and a polymer layer disposed on a surface of the active material core, wherein the polymer layer includes a third polymer including a cross-linked product of a first polymer and a second polymer, wherein the first polymer is at least one of polyamic acid, polyimide, or a combination thereof, and includes a first functional group; and the second polymer is water-soluble and includes a second functional group, and wherein the first polymer and the second polymer are cross-linked by an ester bond that is formed through at least one reaction starting from the first functional group and the second functional group, and at least one of the first polymer and the second polymer further includes a halogen group.

Abstract: An energy storage device includes a nano-structured cathode. The cathode includes a conductive substrate, an underframe and an active layer. The underframe includes structures such as nano-filaments and/or aerogel. The active layer optionally includes a catalyst disposed within the active layer, the catalyst being configured to catalyze the dissociation of cathode active material.

Abstract: Provided is a binder composition for negative electrode that has good binding property with an active material and a metal foil and is superior in reduction resistance. A binder composition for negative electrode comprising a graft copolymer obtained by graft copolymerizing, with polyvinyl alcohol, a monomer containing (meth)acrylonitrile as a main component, wherein the polyvinyl alcohol has an average degree of polymerization of 300 to 3000; the polyvinyl alcohol has a saponification degree of 70 to 100 mol %; the graft copolymer has a polyvinyl alcohol amount of 10 to 90 mass %; and the graft copolymer has a poly(meth)acrylonitrile amount of 90 to 10 mass %.

Abstract: The present invention provides a binder composition which suppresses a swelling ratio in an electrolyte solution while having sufficient peel strength. The binder composition according to the present invention contains a copolymer including monomer units derived from vinylidene fluoride, a fluorine-containing alkyl vinyl compound, and a crosslinkable monomer; the content of the monomer unit derived from the fluorine-containing alkyl vinyl compound in the copolymer being not less than 2 mass % and less than 10 mass %; and the content of the monomer unit derived from the crosslinkable monomer being less than 5 mass %.

Abstract: 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 has excellent adhesiveness after immersion in electrolyte solution and can cause a non-aqueous secondary battery to display excellent cycle characteristics and output characteristics. The composition for a non-aqueous secondary battery functional layer contains organic particles and a binder for a functional layer. The organic particles have an electrolyte solution elution amount of at least 0.001 mass % and not more than 5.0 mass %.

Abstract: A process for producing a nanographene platelet-reinforced composite material having nanographene platelets or sheets (NGPs) as a first reinforcement phase dispersed in a matrix material and the first reinforcement phase occupies a weight fraction of 1-90% based on the total composite weight. Preferably, these NGPs, alone or in combination with a second reinforcement phase, are bonded by an adhesive and constitute a continuous 3-D network of electron- and phonon-conducting paths.

Abstract: Method of making interconnected layered porous carbon sheets with porosity within the carbon sheets and in-between the carbon sheets for use as an electrode. Method of making a metal-nanoparticle carbon composite, wherein metal particles are surrounded by shells made of amorphous carbon. Electrodes containing an amorphous carbon structure comprising a plurality of interconnected layered porous carbon sheets. Electrodes containing graphitic carbon structure with a surface area in the range of 5-200 m2/g. Electrodes containing a metal-nanoparticle carbon composite comprising metal core-carbon shell like architecture and an amorphous structure, wherein metal particles are surrounded by shells made of amorphous carbon.

Abstract: Disclosed herein are provided a lithium secondary battery capable of improving an output characteristic, a life characteristic, and stability of electrode adhesion by using a binder containing dopamine-polymerized heparin in a anode containing silicon. In accordance with an aspect of the present disclosure, a lithium secondary battery includes: an cathode; a anode; a separation film disposed between the cathode and the anode; and an electrolyte, wherein the anode comprises an electrode active material comprising a silicon-based material and graphite, a binder and a conductive material, and the binder comprises any one of heparin and lithium polyacrylate (LiPAA).

Abstract: An electrode for an all solid type battery is designed such that fibrous carbon materials serving as a conductor are densely arranged crossed into a 3-dimensional structure in the form of a mesh of a nonwoven fabric-like shape, and an inorganic solid electrolyte and electrode active material particles are impregnated and uniformly dispersed in the structure. By this structural feature, the electrode for an all solid type battery has very good electron conductivity and ionic conductivity.

Abstract: Provided is rolled supercapacitor comprising an anode, a cathode, a porous separator, and an electrolyte, wherein the anode contains a wound anode roll of an anode active material having an anode roll length, an anode roll width, and an anode roll thickness, wherein the anode active material contains isolated graphene sheets that are oriented substantially parallel to the plane defined by the anode roll length and the anode roll width; and/or the cathode contains a wound cathode roll of a cathode active material having a cathode roll length, a cathode roll width, and a cathode roll thickness, wherein the cathode active material contains isolated graphene sheets that are oriented substantially parallel to the plane defined by the cathode roll length and the cathode roll width; and wherein the anode roll width and/or the cathode roll width is substantially perpendicular to the separator.

Abstract: A non-aqueous electrolyte secondary battery includes at least a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector, a protection layer, and a positive electrode composite material layer. The protection layer, arranged between the positive electrode current collector and positive electrode composite material layer, includes at least a first and second protection layer. The first protection layer, arranged on a surface of the positive electrode current collector, contains a first conductive material and a first resin being a non-thermoplastic polyimide resin. The second protection layer, arranged on a surface of the first protection layer, contains at least a second conductive material and a resin A being a thermoplastic resin. A melting point of the resin A is lower than a thermal decomposition temperature of the first resin. The resin A is greater in expansion coefficient than the first resin.

Abstract: Provided are binder particles which have an average particle diameter of 10 to 50,000 nm and encompass an ion-conductive substance, a solid electrolyte composition including the binder particles, an inorganic solid electrolyte having conductivity for ions of metal elements belonging to Group I or II of the periodic table, and a dispersion medium, a sheet for an all-solid state secondary battery, an electrode sheet for an all-solid state secondary battery, and an all-solid state secondary battery for which the same solid electrolyte composition is used, and methods for manufacturing the same.

Abstract: An electrode for a secondary battery includes titanium-containing oxide as an active material. The median pore diameter of the electrode is 0.050 ?m or more and 0.1 ?m or less and pore surface area of the electrode is 4 m2/g or more and 8 m2/g or less, by mercury porosimetry.

Abstract: The present invention relates to surface-coated positive electrode active material particles and a secondary battery including the same, and specifically, it provides surface-coated positive electrode active material particles including positive electrode active material particles and a coating layer applied on a surface of the positive electrode active material particles, wherein the coating layer includes a polyimide comprising one or more structures selected from the group consisting of pyrrole, aniline, and carbazole. The surface-coated positive electrode active material particles according to the present invention includes a coating layer including a polyimide and metal ions; and since a direct contact between the positive electrode active material particles and an electrolyte can be prevented, a side reaction therebetween can be inhibited, and both excellent lithium ion mobility and excellent electron conductivity can be exhibited.

Abstract: A System and a method for an electrolyte for use in a supercapacitor including a hydrogel including a polymer matrix including at least two crosslinked structures; an aqueous solution including the polymer matrix within the aqueous solution, and wherein the electrolyte can dissipate energy in response to mechanical loads.

Abstract: Lithium-metal batteries with improved dimensional stability are presented along with methods of manufacture. The lithium-metal batteries incorporate an anode cell that reduces dimensional changes during charging and discharging. The anode cell includes a container having a first portion and a second portion to form an enclosed cavity. The first portion is electrically-conductive and chemically-stable to lithium metal. The second portion is permeable to lithium ions and chemically-stable to lithium metal. The anode cell also includes an anode comprising lithium metal and disposed within the cavity. The anode is in contact with the first portion and the second portion. The cavity is configured such that volumetric expansion and contraction of the anode during charging and discharging is accommodated entirely therein.

Abstract: A fluoride ion conductor contains rubidium, magnesium, and fluorine. In an average composition of the fluoride ion conductor, the ratio of the number of moles of the magnesium to the total number of moles of the rubidium and the magnesium is less than 0.4.

Abstract: Provided is a binder composition for a solid electrolyte battery having excellent processability in solid electrolyte battery production and with which a solid electrolyte battery having excellent battery performance can be obtained. The binder composition for a solid electrolyte battery contains a particulate polymer having a core-shell structure and an organic solvent. A mass ratio of content of a polymer forming a core portion of the particulate polymer relative to content of a polymer forming a shell portion of the particulate polymer (i.e., a ratio of “polymer forming core portion/polymer forming shell portion”) is 1/0.3 to 1/5.

Abstract: A method for pretreating a lithium electrode, and a lithium metal battery, and in particular, a method for stabilizing a lithium electrode through pretreatment of being immersed in a composition for forming a solid electrolyte interphase, and a lithium metal battery including such a lithium electrode. Effects of decreasing interfacial resistance and enhancing Li charge and discharge efficiency are obtained when forming a solid electrolyte interphase (SEI) on a lithium electrode in advance using a pretreatment process of the lithium electrode, and then using the SEI layer-formed lithium electrode in a lithium metal battery.

Abstract: A negative electrode active material containing a Si-containing alloy having a composition to be represented by Chemical Formula (1): SixSnyMzAlwAa (in Chemical Formula (1) above, M is one or two or more transition metal elements, A is an unavoidable impurity, and x, y, z, w, and a represent values of percentage by mass, where y, z, and w are 2?y?10, 25?z?35, and 0.3?w?3, respectively, and x and a are remainder) is used in an electrical device, providing a means capable of improving the cycle durability of the electrical device such as a lithium ion secondary battery.

Abstract: Provided are a solid electrolyte composition containing an inorganic solid electrolyte having a conductivity for ions of metals belonging to Group I or II of the periodic table and a compound having an anionic polymerizable functional group, a solid electrolyte-containing sheet containing an inorganic solid electrolyte having a conductivity for ions of metals belonging to Group I or II of the periodic table and an anionic polymer which bonds to the inorganic solid electrolyte, and an all-solid state secondary battery, and methods for manufacturing the solid electrolyte composition, the solid electrolyte-containing sheet, and the all-solid state secondary battery.

Abstract: There is provided a positive electrode for nonaqueous electrolyte secondary batteries having a high-density and a high folding strength. There is also provided a nonaqueous electrolyte secondary battery including such a positive electrode. The positive electrode has a high folding strength when it is used in a battery with a high current density, and a nonaqueous electrolyte secondary battery having such a positive electrode. The positive electrode has an electrode body having formed a folded portion at least at one part of the positive electrode. With respect to a cross-section of the positive electrode composition layer, a domain A extends from a central part to a surface side of a thickness direction, and a domain B extends from the central part to the current collector. The distribution of the binder in domain A and domain B are specified.

Abstract: A zinc ion-exchanging battery device comprising: (A) a cathode comprising two cathode active materials (a zinc ion intercalation compound and a surface-mediating material); (B) an anode containing zinc metal or zinc alloy; (C) a porous separator disposed between the cathode and the anode; and (D) an electrolyte containing zinc ions that are exchanged between the cathode and the anode during battery charge/discharge. The zinc ion intercalation compound is selected from chemically treated carbon or graphite material having an expanded inter-graphene spacing d002 of at least 0.5 nm, or an oxide, carbide, dichalcogenide, trichalcogenide, sulfide, selenide, or telluride of niobium, zirconium, molybdenum, hafnium, tantalum, tungsten, titanium, vanadium, chromium, cobalt, manganese, iron, nickel, or a combination thereof. The surface-mediating material contains exfoliated graphite or multiple single-layer sheets or multi-layer platelets of a graphene material.

Abstract: A separator for a rechargeable lithium battery includes a substrate; and a coating layer positioned on at least one side of the substrate, wherein a thickness ratio of the coating layer relative to the total thickness of the substrate and the coating layer ranges from about 5% to about 50%, and a loading level of the coating layer ranges from about 1.4 g/m2 to about 9.8 g/m2, and a rechargeable lithium battery including the same is provided.

Abstract: Provided are a negative electrode, a battery, a battery pack, an electronic apparatus, an electrically driven vehicle, an electrical storage device, and an electric power system which are capable of improving cycle characteristics.

Abstract: The present disclosure provides an anode electrode slurry suspending agent, an anode electrode plate and an energy storage device, the anode electrode slurry suspending agent has a structural formula composed of a main chain containing carbon and a side chain, the side chain comprises a first side chain R1 and a second side chain R2; the first side chain R1 contains —R11—CONH2, the second side chain R2 contains —(C?O)OR21 or —O(C?O)R22, the anode electrode slurry suspending agent can significantly improve coating speed of the anode electrode slurry and can ensure that there is no drying-cracking phenomenon of the anode electrode film at the same time, thereby improving productivity and quality rate of coating process of the anode electrode plate and in turn significantly improving production capacity of the energy storage device.

Abstract: Disclosed is a method for preparing positive electrode active material slurry, which includes the steps of: (S1) preparing a positive electrode active material, a linear conductive material, a polymer binder and a solvent; (S2) introducing 40-80% of the prepared polymer binder, the positive electrode active material and the linear conductive material to the solvent, followed by mixing, to obtain a first positive electrode active material slurry; and (S3) further introducing the remaining polymer binder to the first positive electrode active material slurry, followed by mixing, to obtain a second positive electrode active material slurry.

Abstract: This binder for all-solid-state secondary batteries contains a binder polymer which is obtained by polymerizing or copolymerizing a monomer composition that contains a polyalkylene oxide-based monomer.

Abstract: Provided is method of producing anode or cathode particulates for an alkali metal battery. The method comprises: (a) preparing a slurry containing particles of an anode or cathode active material, an electron-conducting material, and an electrolyte containing a lithium salt or sodium salt and an optional polymer dissolved in a liquid solvent; and (b) conducting a particulate-forming means to convert the slurry into multiple anode or cathode particulates, wherein an anode or a cathode particulate is composed of (i) particles of the active material, (ii) the electron-conducting material, and (iii) an electrolyte, wherein the electron-conducting material forms a 3D network of electron-conducting pathways and the electrolyte forms a 3D network of lithium ion- or sodium ion-conducting channels and wherein the anode particulate or cathode particulate has a dimension from 10 nm to 100 ?m and an electrical conductivity from about 10?6 S/cm to about 300 S/cm.

Abstract: Provided is a composite cathode active material including: a core including a lithium transition metal oxide, the lithium transition metal oxide being doped with nickel (Ni) and at least one element selected from Group 4 to Group 13 elements and having a layered crystalline phase belonging to the Space Group R-3m; and a coating layer on a surface of the core, the coating layer including a cobalt compound.

Abstract: Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Also provided are electrochemical cells comprising such separators.

Abstract: A lithium composite negative electrode which allows a hybrid capacitor to operate at room temperature by reducing interfacial resistance in the electrode, a hybrid capacitor comprising the composite negative electrode, and manufacturing methods thereof. The lithium composite negative electrode is a laminar electrode including a lithium ion conductive solid electrolyte, an alginate gel electrolyte, and lithium-doped carbon. Further, a hybrid capacitor includes a positive electrode including a carbon material and/or a metal oxide, the lithium composite negative electrode, and a neutral aqueous electrolyte filled between the positive electrode and the lithium composite negative electrode. The lithium composite negative electrode is configured as a laminar electrode including the lithium ion conductive solid electrolyte, the alginate gel electrolyte, and the lithium-doped carbon.

Abstract: A lithium ion battery is provided, which includes a positive electrode, a negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode. The negative electrode includes a current collector and a ?-phase-based polyvinylidene fluoride (?-PVDF) layer coating on the current collector. The ?-PVDF layer may have a thickness of 1 ?m to 10 ?m.

Abstract: A positive electrode active material for non-aqueous electrolyte secondary battery with improved cycle characteristics and high temperature storage characteristics, without impairing an advantage of high capacity which lithium nickel composite oxide inherently possesses. The positive electrode active material for non-aqueous electrolyte secondary battery includes lithium nickel composite oxide represented by a general formula (1): Li1+uNi1?x?y?zCoxMnyMgzO2 (However, u, x, y and z in the formula satisfies 0.015?u?0.030, 0.05?x?0.20, 0.01?y?0.10, 0.01?z?0.05, 0.10?x+y+z?0.25.), and wherein crystallite diameter is 100 nm to 130 nm. In addition, the positive electrode active material for non-aqueous electrolyte secondary battery is produced at least by an oxidation roasting step, a mixing step, and a calcining step.

Abstract: A composition for a secondary battery negative electrode including a carbonaceous material (a) and a silicon oxide structure (b), wherein the silicon oxide structure (b) includes a silicon oxide framework containing Si and O in its atomic composition and silicon-based nanoparticles that are chemically bonded to the silicon oxide framework as components, wherein the silicon oxide structure (b) is contained in a proportion of 15 mass % or more with respect to a total amount of the carbonaceous material (a) and the silicon oxide structure (b), and wherein the silicon oxide structure (b) satisfies the following conditions (i) to (iii): (i) having an atomic composition represented by a general formula SiOx2Hy2 (0.3<x2<1.5, 0.01<y2<0.35), (ii) having Si—H bonds, and (iii) being essentially free of carbon.

Abstract: A composition for forming a film for semiconductor devices including: a compound (A) including a cationic functional group containing at least one of a primary nitrogen atom or a secondary nitrogen atom and having a weight average molecular weight of from 10,000 to 400,000; a crosslinking agent (B) which includes the three or more —C(?O)OX groups (X is a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms) in the molecule, in which from one to six of three or more —C(?O)OX groups are —C(?O)OH groups, and which has a weight average molecular weight of from 200 to 600; and water (D), in which the compound (A) is an aliphatic amine.

Abstract: Methods of forming electrochemical cells are described. In some embodiments, the method can include providing an electrochemical cell having an electrode with at least about 20% to about 99% by weight of silicon. The method can include providing a formation charge current at greater than about 1 C to the electrochemical cell. Alternatively or additionally, the method can include providing a formation charge current at a substantially constant charge voltage to the electrochemical cell.

Abstract: An oligomer and a lithium battery are provided. The oligomer is obtained by a reaction of epoxy acrylate and barbituric acid. The lithium battery includes an anode, a cathode, a separator, an electrolyte solution and a packaging structure, wherein the cathode includes the oligomer.

Abstract: Decomposition of an aqueous electrolyte solution when an aqueous lithium ion secondary battery is charged and discharged is suppressed, and the operating voltage of the battery is improved. The aqueous lithium ion secondary battery includes an anode, a cathode, and an aqueous electrolyte solution, the anode including a composite of an anode active material and polytetrafluoroethylene, wherein peaks of the polytetrafluoroethylene at around 1150 cm?1 and at around 1210 cm?1 are observed in FT-IR measurement of the composite, but a peak of the polytetrafluoroethylene at around 729 cm?1 is not observed in Raman spectroscopy measurement of the composite.

Abstract: Disclosed herein is a lithium secondary battery capable of improving an output characteristic, a life characteristic, and stability of electrode adhesion by using a binder containing dopamine-polymerized heparin in an anode containing silicon. In accordance with an aspect of the present disclosure, a lithium secondary battery includes: a cathode; an anode; a separation film disposed between the cathode and the anode; and an electrolyte, wherein the anode comprises a binder containing carboxymethyl cellulose (CMC), styrene-butadiene rubber (SBR), and polysaccharide including a sulfonate functional group and an amine group.

Abstract: Provided are a negative electrode active material for a secondary battery, in which a silicon-based negative electrode active material is formed in a three-layer structure including an amorphous matrix, thereby suppressing a dispersal phenomenon of the negative electrode active material during charging/discharging. The negative electrode active material having a three-layer structure includes: a silicon (Si) layer; an amorphous matrix layer outside the Si layer; and a nano grain matrix layer formed on an interface between the Si layer and the amorphous matrix layer.

Abstract: A positive electrode for an all-solid secondary battery, comprising a positive electrode active material expressed by A2S.AX, wherein A is an alkali metal; and X is selected from I, Br, Cl, F, BF4, BH4, SO4, BO3, PO4, O, Se, N, P, As, Sb, PF6, AsF6, ClO4, NO3, CO3, CF3SO3, CF3COO, N(SO2F)2 and N(CF3SO2)2.

Abstract: Exemplary energy storage devices, battery cells, and batteries of the present technology may include a cathode active material disposed on a cathode current collector. The devices may also include an anode active material disposed on an anode current collector. At least one current collector of the cathode current collector or the anode current collector may include a continuous layer of a carbon-containing material positioned between the current collector and the active material.

Abstract: The present invention pertains to: a non aqueous electrolyte battery binder composition containing a polyamine and a neutralized salt of an ?-olefin-maleic acid copolymer obtained through copolymerization of an ?-olefin and maleic acid; and a non aqueous electrolyte battery slurry composition, a non aqueous electrolyte battery negative electrode, and a non aqueous electrolyte battery, etc., using the non aqueous electrolyte battery binder composition.