Abstract: A method for manufacturing a substrate for a lead acid battery includes manufacturing a powder mixture by mixing lead powder and carbon powder and manufacturing a substrate by compress-molding the powder mixture. 85 wt % to 95 wt % of the lead powder and 5 wt % to 15 wt % of the carbon powder are mixed, based on 100 wt % of the powder mixture.

Abstract: Energy storage devices having hybrid anodes can address at least the problems of active material consumption and anode passivation that can be characteristic of traditional batteries. The energy storage devices each have a cathode separated from the hybrid anode by a separator. The hybrid anode includes a carbon electrode connected to a metal electrode, thereby resulting in an equipotential between the carbon and metal electrodes.

Abstract: The present disclosure relates to a negative electrode active material having excellent output characteristics and causing little gas generation, and an electrode including the negative electrode active material. The negative electrode active material includes metal oxide-lithium titanium oxide (MO-LTO) composite particles which have a shape of secondary particles formed by aggregation of primary particles, wherein the primary particles have a core-shell structure including a core and a shell totally or at least partially covering the surface of the core, the core includes primary particles of lithium titanium oxide (LTO), and the shell includes a metal oxide.

Abstract: A method of the present invention includes measuring a thickness of an electrode in which an active material layer is formed on a current collector (Step 1); fixing the active material layer of the electrode to a substrate (Step 2); attaching a removal tape to the current collector of the electrode, and then measuring an adhesive strength of the removal tape and measuring a thickness of the electrode after the removal (Step 3); attaching a removal tape to the active material layer from which the current collector is removed, and then measuring an adhesive strength of the removal tape and measuring the thickness of the electrode after the removal, wherein this procedure is repeated until a measurement limit is reached (Step 4); and determining a distribution of a binder according to the thickness of the electrode from measured values obtained in Steps 3 and 4 (Step 5).

Abstract: A battery cell which includes at least one negative electrode, at least one positive electrode, and at least one electrolyte, the battery cell further including at least one electroactive material which may be prompted to undergo a change in volume and/or shape by way of an application of a voltage. A battery is also described which includes at least one battery cell, the battery further including at least one electroactive material which may be prompted to undergo a change in volume and/or shape by way of an application of a voltage. A method is also described for compensating for changes in volume and/or shape in a battery cell and in a battery.

Abstract: A lithium ion secondary battery, improved in durability against high-rate charging/discharging, which includes, in the negative electrode active material layer, a negative electrode active material formed of a graphite carbon material having a graphite structure in at least a part thereof, and a conductive carbon material, which is different from the graphite carbon material and is formed of a conductive amorphous carbon. The negative electrode active material has a bulk density of 0.5 g/cm3 or more and 0.7 g/cm3 or less, and a BET specific surface area of 2 m2/g or more and 6 m2/g or less. The conductive carbon material has a bulk density of 0.4 g/cm3 or less, and a BET specific surface area of 50 m2/g or less.

Abstract: A negative electrode active material includes a silicon-based alloy represented by Si-M1-M2-C—B, wherein M1 and M2 are different from each other and are each independently selected from magnesium, aluminum, titanium, vanadium, chromium, iron, cobalt, nickel, copper, zinc, gallium, germanium, manganese, yttrium, zirconium, niobium, molybdenum, silver, tin, tantalum, and tungsten. In the silicon-based alloy, Si is in a range of about 50 at % to about 90 at %, M1 is in a range of about 10 at % to about 50 atom %, and M2 is in a range of 0 at % to about 10 at %, based on a total number of Si, M1, and M2 atoms. C is in a range of about 0.01 to about 30 parts by weight, and B is in a range of 0 to about 5 parts by weight, based on a total of 100 parts by weight of Si, M1, and M2.

Abstract: The present invention pertains to a slurry composition for non aqueous electrolyte battery electrodes that includes a binder composition, an active material, and a solvent, in which the active material is a lithium-containing metal oxide, the binder composition contains a neutralized salt of an ?-olefin-maleic acid copolymer in which an ?-olefin and a maleic acid are copolymerized, and the degree of neutralization for carboxylic acid generated from the maleic acid in the copolymer is from 0.3 to 1.0. The present invention further pertains to a non aqueous electrolyte battery positive electrode and a non aqueous electrolyte battery using the slurry composition for non aqueous electrolyte battery electrodes.

Abstract: High-capacity (i.e., a capacity of 50 mAh/gm or greater) and high-performance rechargeable batteries are provided that contain a rechargeable battery stack that includes a spalled material structure that includes a cathode material layer that is attached to a stressor material. The cathode material may include a single crystalline that is devoid of polymeric binders. The stressor material serves as a cathode current collector of the rechargeable battery stack.

Abstract: Electrochemical cells comprising electrodes comprising lithium (e.g., in the form of a solid solution with non-lithium metals), from which in situ current collectors may be formed, are generally described.

Abstract: The present invention relates to an electrode, a method for manufacturing same, and a battery comprising the electrode. An electrode and a method for manufacturing same can be provided wherein the electrode of the present invention prevents a segregation phenomenon by which a binder is concentrated on the surface of the electrode, thereby comprising an active layer exhibiting excellent peel strength on a current collector.

Abstract: The positive electrode as an embodiment includes a positive electrode current collector mainly composed of aluminum, a positive electrode mixture layer containing a lithium-containing transition metal oxide and disposed above the positive electrode current collector, and a protective layer disposed between the positive electrode current collector and the positive electrode mixture layer. The protective layer contains inorganic particles, an electro-conductive material, and a binding material; is mainly composed of the inorganic particles; and is disposed on the positive electrode current collector to cover the positive electrode current collector in approximately the entire area where the positive electrode mixture layer is disposed and at least a part of the exposed portion of the positive electrode current collector where the positive electrode mixture layer is not disposed on the surface of the positive electrode current collector.

Abstract: A homologous series of cyclic carbonate or propylene carbonate (PC) analog solvents with increasing length of linear alkyl substitutes were synthesized and used as co-solvents with PC for graphite based lithium ion half cells. A graphite anode reaches a capacity around 310 mAh/g in PC and its analog co-solvents with 99.95% Coulombic efficiency. Cyclic carbonate co-solvents with longer alkyl chains are able to prevent exfoliation of graphite when used as co-solvents with PC. The cyclic carbonate co-solvents of PC compete for solvation of Li ion with PC solvent, delaying PC co-intercalation. Reduction products of PC on graphite surfaces via single-electron path form a stable Solid Electrolyte Interphase (SEI), which allows the reversible cycling of graphite.

Abstract: The present invention provides a method of preparing an electrode slurry for lithium secondary batteries in which the physical properties of the electrode slurry are improved to minimize a drag line by performing the primary mixing process at high viscosity, a method of manufacturing an electrode of which a defect rate of the electrode is reduced and with which battery stability is improved by using the method of preparing an electrode slurry for secondary batteries, an electrode manufactured using the method, and a secondary battery including the electrode.

Abstract: The negative electrode for an electric device includes a current collector and an electrode layer containing a negative electrode active material, a conductive auxiliary agent and a binder and formed on a surface of the current collector, wherein the negative electrode active material contains an alloy represented by the following formula (1): SixSnyMzAa (in the formula (1), M is at least one metal selected from the group consisting of Al, V, C and a combination thereof, A is inevitable impurities, and x, y, z and a represent mass percent values and satisfy the conditions of 0<x<100, 0<y<100, 0<z<100, 0?a<0.5, and x+y+z+a=100), and elastic elongation of the current collector is 1.30% or greater.

Abstract: Provided is a multivalent metal-ion battery comprising an anode, a cathode, a porous separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of a multivalent metal, selected from Ni, Zn, Be, Mg, Ca, Ba, La, Ti, Ta, Zr, Nb, Mn, V, Co, Fe, Cd, Cr, Ga, In, or a combination thereof, at the anode, wherein the anode contains the multivalent metal or its alloy as an anode active material and the cathode comprises a cathode layer of an exfoliated graphite or carbon material recompressed to form an active layer that is oriented in such a manner that the active layer has a graphite edge plane in direct contact with the electrolyte and facing or contacting the separator.

Abstract: An electrode mixture layer composition for a nonaqueous electrolyte secondary battery contains an active material, water and a binder. The binder contains a crosslinked polymer of a monomer component including an ethylenically unsaturated carboxylic acid monomer, and a salt thereof. The crosslinked polymer is a polymer that is crosslinked with allyl methacrylate, and an amount of the allyl methacrylate used is 0.1 to 2.0 parts by weight relative to total 100 parts by weight of non-crosslinking monomers, and a content of the crosslinked polymer and salt thereof is 0.5% to 5.0% by weight of the active material.

Abstract: A galvanic element includes the following elements in the order listed: a current collector associated with an anode; the anode; an ion-conducting separator in the form of a continuous layer; a cathode; and a current collector associated with the cathode. The anode encompasses an ion-conducting support structure, and both the ion-conducting support structure and the separator encompasses an ion-conducting material. The ion-conducing support structure is porous.

Abstract: Provided in the present disclosure is a method for producing a composite cathode active material with low reaction resistance. The method comprises: a coating step of, with a Li ion conductive oxide, coating a cathode active material that is a spinel type oxide including at least a Mn having a valence of +4 to obtain a coated cathode active material; and a heat treating step of heat treating the coated cathode active material to obtain a composite cathode active material; wherein a valence of the Mn in the cathode active material is lower than a valence of the Mn in the cathode active material before coating, and a valence of the Mn is increased by the heat treating.

Abstract: A composite electrode active material includes: a carbon nanostructure shell; a first core material disposed in a first pore channel of the carbon nanostructure shell; and a second core material disposed in a second pore channel of the carbon nanostructure shell, wherein the first core material includes a first electrode active material and the second core material includes a second electrode active material, and wherein the first electrode active material has a Li+/Li charge/discharge voltage potential which is different from a Li+/Li charge/discharge voltage potential of the second electrode active material.

Abstract: A method of forming a solid state battery is disclosed. In a moisture-free inert atmosphere, the method includes combining unreacted solid electrolyte precursors to form a green sheet, stacking the green sheet in between porous electrodes to form a solid state battery, and heating the battery to a melting point temperature of the precursors such that the precursors form a liquid phase penetrating pores in the electrodes to form ion conducting channels in the battery.

Abstract: A binder composition for positive electrode with superior oxidation resistance is provided. A slurry for positive electrode, a positive electrode, and a lithium ion secondary battery manufactured by using the binder composition is provided. A binder composition for positive electrode including a graft copolymer in which a monomer containing acrylonitrile as a main component is graft copolymerized with polyvinyl alcohol having an average degree of polymerization of 300 to 3000 and a saponification degree of 70 to 100 mol %, is provided. Further, a slurry for positive electrode includes the binder composition for positive electrode, a positive electrode active material, and a conductive assistant. In addition, a lithium ion secondary battery is manufactured using a positive electrode made with the slurry for positive electrode and a positive electrode.

Abstract: The present invention provides an electrical storage device binder composition that can produce an electrode that achieves improved charge-discharge characteristics. The composition includes a polymer (A) and a liquid medium (B), and further includes particles having a particle size of 10 to 50 micrometers in a number of 1,000 to 100,000 per mL.

Abstract: A manufacturing method of a lithium ion secondary battery includes: forming a first mixture by mixing powder of a first electrode material, which is one of the active material and the conductive material, with powder of trilithium phosphate; forming a second mixture by mixing the first mixture with powder of a second electrode material which is the other one of the active material and the conductive material; forming a wet granulated body by mixing the second mixture with the binder and a solvent; and forming the active material layer by attaching the wet granulated body to the surface of the current collector foil.

Abstract: There is provided a secondary battery including: a cathode; an anode including a titanium-containing compound; and an electrolytic solution including a dicarbonyl compound. A content of the dicarbonyl compound is from 0.01 wt % to 5 wt % both inclusive.

Abstract: To provide a non-aqueous electrolyte electricity-storage element including a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material capable of inserting and releasing cations, and a non-aqueous electrolyte, wherein the positive-electrode active material is porous carbon having pores having a three-dimensional network structure, and wherein a changing rate of a cross-sectional thickness of a positive electrode film including the positive-electrode active material defined by Formula (1) below is less than 45%.

Abstract: A negative electrode active material for a lithium secondary battery including silicon (Si), manganese (Mn), Component A including at least one selected from iron (Fe), molybdenum (Mo), chromium (Cr), zinc (Zn), titanium (Ti), nickel (Ni), vanadium (V), tungsten (W), and yttrium (Y), and Component B including at least one selected from carbon (C), boron (B), oxygen (O), nitrogen (N), phosphorous (P), and sulfur (S), wherein a total amount of Si, Mn, and Component A is about 70 atom % or less, an amount of Component B is 30 atom % or more, and a total amount of Mn and Component A is in a range of about 10 atom % to about 35 atom %.

Abstract: This cladding material for a battery collector consists of a cladding material having a two-layer structure formed by bonding a first layer arranged on a first surface and constituted of an Al-based alloy and a second layer arranged on a second surface and constituted of a Cu-based alloy to each other by rolling. The ratio of the thickness of the first layer to the total thickness of the first layer and the second layer is not more than 35%.

Abstract: Xanthan gum has been found to be a superior binder for binding an electrode, especially an anode, in a lithium-ion or lithium-sulfur battery, being able to accommodate large volume changes and providing stable capacities in batteries tested with different types of anode materials.

Abstract: The present invention relates to a negative electrode active material and a method of preparing the same, the negative electrode active material which includes a core including artificial graphite and hard carbon, and a shell surrounding the core and including natural graphite, wherein the shell is shell is formed to cover a surface of the core by stacking and heading the natural graphite. Since the natural graphite completely surrounds the artificial graphite and the hard carbon, the hard carbon having a low initial efficiency and high electrolyte solution consumption is not exposed to the outside, and thus, high initial efficiency and life characteristics may be obtained. Also, since the natural graphite, the artificial graphite, and the hard carbon are all used, diffusion resistance of lithium ions is lower than that of a case where the natural graphite is only used, and thus, high output characteristics may be achieved.

Abstract: A method for manufacturing a solid electrode. To more strongly utilize the intrinsic properties of a porous active material with respect to capacitance and therefore energy density and also rate and high-current capability, in the method, porous active material particles are impregnated using an ion-conducting liquid which contains monomers and/or oligomers in particular and a solid electrode is formed from the impregnated active material particles by adding at least one solid electrolyte. In addition, the invention relates to such solid electrodes and all-solid-state cells.

Abstract: An electrode active material comprising an amorphous or crystalline composite of phosphorous sulfide having the general formula MxPysz, wherein M is a metal and x, y, and z are positive whole numbers. Electrochemical cells and a reversible battery having a cathode containing one of the electrode active materials are also provided. In specific embodiments, the battery is a magnesium battery. In addition, methods of forming the composites and electrodes via ball milling and in situ electrochemical reactions are provided.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a separator provided between the positive electrode and the negative electrode, and a nonaqueous electrolytic solution at least held by the separator. The positive electrode has a positive electrode collector and a positive electrode mixture layer provided on the positive electrode collector. The positive electrode mixture layer has a first powder and a second powder. The first powder includes a first positive electrode active material, a first conductive material, and an organic-based binder. The second powder includes a second positive electrode active material, a second conductive material, and a water-based binder.

Abstract: Core-shell particles, composite anode material, anodes made therefrom, lithium ion cells and methods are provided, which enable production of fast charging lithium ion batteries. The composite anode material has core-shell particles which are configured to receive and release lithium ions at their cores and to have shells that are configured to allow for core expansion upon lithiation. The cores of the core-shell particles are connected to the respective shells by conductive material such as carbon fibers, which may form a network throughout the anode material and possibly interconnect cores of many core-shell particles to enhance the electrical conductivity of the anode. Ionic conductive material and possibly mechanical elements may be incorporated in the core-shell particles to enhance ionic conductivity and mechanical robustness toward expansion and contraction of the cores during lithiation and de-lithiation.

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, width, and thickness and the anode active material contains flakes of graphite worms or expanded graphite that are oriented substantially parallel to the plane defined by the anode roll length and width; and/or the cathode contains a wound cathode roll of a cathode active material having a cathode roll length, width, and thickness, wherein the cathode active material contains flakes of graphite worms or expanded graphite that are oriented substantially parallel to the plane defined by the cathode roll length and width; and wherein the anode roll width and/or the cathode roll width is substantially perpendicular to the separator.

Abstract: The present invention is silver (I) periodate compounds and their use in preventing or reducing microbial contamination. The invention includes gels, coatings, and articles of manufacture having a surface contacted or coated with a gel comprising an antimicrobial silver (I) compound. Methods of treatment are also disclosed.

Abstract: Described is a method to form an anode for a battery pack to power an electric vehicle. The method can include forming a powder mix of a carbonaceous material and a conductive additive. The powder mix can be divided into portions and iteratively added to a carboxymethyl cellulose solution to generate a slurry. The slurry can be dispensed onto a face of a conductive film. Also described is a battery cell for a battery pack to power an electric vehicle. The battery cell can have a housing and at least one anode coupled with the housing. Each anode can have a conductive film forming the anode surface. Each anode can have a coating disposed on the conductive film. The coating can have an area loading of between 12 mg/cm2 and 18 mg/cm2 and can be between 95% and 99% by weight of a carbonaceous material and a conductive additive.

Abstract: Disclosed is a binder composition for secondary batteries, wherein conjugated diene latex particles (A) having an average particle diameter of 50 nm or more and 200 nm or less and acrylic copolymer latex particles (B) having an average particle diameter of 300 nm or more and 700 nm or less are present as an independent phases, and the acrylic copolymer latex particles (B) are included in an amount of 1% to 30% by weight based on a mass of a solid. When the binder composition according to the present invention is applied to an electrode mixture and lithium secondary battery, superior binding force may be maintained between electrode materials and between an electrode material and a current collector, which suffer volume change during charge/discharge, and a secondary battery having superior initial capacity and efficiency may be provided. In addition, thickness increase and gas generation are decreased at high temperature and thus swelling is decreased, whereby a battery having enhanced safety may be provided.

Abstract: An electrode for a secondary battery includes a current collector, and an active material layer being formed on a surface of the current collector, and containing an active material and a binder, in which the active material contains SiOx, a surface of SiOx is modified with one or more groups selected from the group consisting of an aniline group, an imidazole group, and an amino group, and the binder is constituted by a water-soluble polymer having a sugar chain structure that contains a carboxylic acid group.

Abstract: Document discloses new technologies for utilizing cellulose based materials in composites and electrically functionalized structures, such as energy storage devices. The object of the invention is achieved by means of high consistency fibrillated cellulose with at least one functional additive. This high consistency mixture is processed to form the composite structure having a shape and then dried or let to dry.

Abstract: An example method of reducing short circuits from occurring in a battery can include providing a current collector coated with a safety layer. The method can include providing an electrochemically active material film on the safety layer such that the safety layer is configured to reduce exposure of the current collector to an opposing electrode. The method can also include adhering the electrochemically active material film to the current collector via the safety layer.

Abstract: A method for drying an electrode pair is disclosed. In at least one embodiment, the method includes preparing a positive electrode by applying a positive electrode material to a current collector; preparing a negative electrode by applying a negative electrode material to a current collector; preparing one set of an electrode pair made up of a positive electrode, a separator, and a negative electrode which are laminated in this order or preparing sets of electrode pairs, the sets being laminated, a separator being provided between the respective sets, each of the electrode pairs being made up of a positive electrode, a separator, and a negative electrode which are laminated in this order; accommodating the electrode pair(s) in a container; and drying the container in which the electrode pair(s) has been accommodated by use of the freeze-drying method.

Abstract: A positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes a positive active material, a binder, and a conductive material, wherein a weight ratio of the binder and conductive material, and the positive active material, ranges from 3:97 to 5:95 wt %, and a weight ratio of the binder and the conductive material ranges from 1.5 to 3:1.

Abstract: Provided is a nonaqueous electrolyte secondary battery in which the following are housed in a battery case: a nonaqueous electrolyte, a boron atom-containing oxalato complex compound, and an electrode assembly in which a positive electrode having a positive electrode active material and a negative electrode having a negative electrode active material are disposed facing each other. Here, a coat containing boron atoms originating from the oxalato complex compound is formed on the surface of the negative electrode active material, and the amount BM (?g/cm2) of the boron atom as measured based on inductively coupled plasma-atomic emission spectroscopic analysis and the intensity BA for a tricoordinate boron atom as measured based on x-ray absorption fine structure analysis satisfy 0.5?BA/BM?1.0.

Abstract: An anode-free rechargeable battery is disclosed. The battery includes an anode current collector and a cathode containing an active cation Mn+, where n=1, 2, or 3. The anode-free rechargeable battery further includes a separator placed between the anode current collector and the cathode. The anode-free rechargeable battery also includes an electrolyte including a salt or salt mixture containing an active cation Mn+ dissolved in a solvent or solvent mixture.

Abstract: The present invention relates to positive electrode active material slurry including two different types of binders in a specific ratio and having a high solid concentration and low viscosity, a positive electrode including a positive electrode active material layer formed therefrom, and a lithium secondary battery including the positive electrode.

Abstract: In manufacturing a storage battery electrode, a method for manufacturing a storage battery electrode with high capacity and stability is provided. As a method for preventing a mixture for forming an active material layer from becoming strongly basic, a first aqueous solution is formed by mixing an active material exhibiting basicity with an aqueous solution exhibiting acidity and including an oxidized derivative of a first conductive additive; a first mixture is formed by reducing the oxidized derivative of the first conductive additive by drying the first aqueous solution; a second mixture is formed by mixing a second conductive additive and a binder; a third mixture is formed by mixing the first mixture and the second mixture; and a current collector is coated with the third mixture. The strong basicity of the mixture for forming an active material layer is lowered; thus, the binder can be prevented from becoming gelled.

Abstract: A method for manufacturing a substrate for a lead acid battery includes manufacturing a powder mixture by mixing lead powder and carbon powder and manufacturing a substrate by compress-molding the powder mixture. 85 wt % to 95 wt % of the lead powder and 5 wt % to 15 wt % of the carbon powder are mixed, based on 100 wt % of the powder mixture.

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: The invention pertains to an aqueous electrode-forming composition comprising:—at least one fluoropolymer [polymer (F)];—particles of at least one powdery active electrode material [particles (P)], said particles (P) comprising a core of an active electrode compound [compound (E)] and an outer layer of a metallic compound [compound (M)] different from Lithium, said outer layer at least partially surrounding said core; and—water, to a process for its manufacture, to a process for manufacturing an electrode structure using the same, to an electrode structure made from the same and to an electrochemical device comprising said electrode structure.