Abstract: An electrode for a lithium-based secondary electrochemical device includes a current collector. The current collector includes a substrate having a surface defining a plurality of pores therein, and a lithium powder disposed within each of the plurality of pores. In addition, the electrode includes a cured film disposed on the current collector and formed from an electrically-conductive material. A lithium-based secondary electrochemical device including the electrode, and a method of forming the electrode are also disclosed.

Abstract: An electrochemical cell including an integrated electrode structure including a separator and an electrode active material, components thereof, a battery including the electrochemical cell, and methods of forming the components, electrochemical cell, and battery are disclosed. The integrated electrode structure includes a separator and at least on electrode active material.

Abstract: A conductor is describing for an electrochemical energy store, including a base body, and at least one electrically conductive layer situated at least partially on the base body. The base body includes a non-electrically conductive material. In addition, an energy store is described which is equipped with the conductor, a method for manufacturing a conductor is described, and the use of the energy store equipped with the conductor in an electrical device is described.

Abstract: An electrode structure and its method of manufacture are disclosed. The disclosed electrode structures may be manufactured by depositing a first release layer on a first carrier substrate. A first protective layer may be deposited on a surface of the first release layer and a first electroactive material layer may then be deposited on the first protective layer.

Abstract: A polycrystalline cobalt-nickel-manganese ternary positive material is provided. The polycrystalline cobalt-nickel-manganese ternary positive material comprises more than two basic crystalline structures of Liz—CoO2, LizNiO2, LizMnO2, LizCo1-(x+y)NixMnyO2, LizNixMn1-xO2, LizCoxNi1-xO2 and Li2MnO3. Further, a method for preparing the positive material by high-temperature fusion is provided. The positive material has the compacted density of 3.9-4.3 g/cm3, the capacity of 145 mAh/g or more when the discharging rate is 0.5-1C and the capacity retention rate of more than 90% after 300 cycles. The positive material prepared by high-temperature fusion has high volume energy density, excellent electrochemical performance, and improved safety and is manufactured economically. Further, a lithium ion secondary battery comprising the positive material is provided.

Abstract: An electrode for a power storage device with less deterioration due to charge and discharge and a power storage device using the electrode are provided. In the electrode for a power storage device and the power storage device, a region including a metal element which functions as a catalyst is selectively provided over a current collector, and then, an active material layer is formed. By selectively providing the region including the metal element, a whisker can be effectively generated in the active material layer over the current collector, and the whisker generation region can be controlled. Accordingly, the discharge capacity can be increased and the cycle characteristics can be improved.

Abstract: An ultrasonic horn and a secondary battery manufactured using the ultrasonic horn are disclosed. The ultrasonic horn has a pressing surface at an end thereof, the ultrasonic horn including a protrusion part disposed on the pressing surface, the protrusion part including a first protrusion row that includes a plurality of protrusions consecutively arranged along a first direction, and a second protrusion row that includes a plurality of protrusions consecutively arranged along the first direction and is separated from the first protrusion row by a predetermined distance in a second direction that is different from the first direction.

Abstract: Provided is a cathode including a cathode current collector, a cathode tab protruding from the cathode current collector, and an insulation layer coated with an insulating material on the cathode tab, and a secondary battery including the cathode. Since the cathode of the present invention includes an insulation layer on a cathode tab, the present invention may prevent an internal short circuit which may occur due to cell deformation or sharp edges of electrodes, which are formed during cutting of the electrodes in a preparation process of the battery, when the electrodes are stacked, or may prevent a physical short circuit between the cathode and the anode due to shrinkage of a separator in a high-temperature atmosphere. In a case where the cathode is used in a lithium secondary battery, safety and reliability in battery performance may be significantly improved.

Abstract: Disclosed are a method for manufacturing an electrode including mixing at least two electrode materials selected from a carbon material, a metal oxide precursor, and a conductive polymer with a solvent to prepare a mixture, coating the mixture on a current collector, and radiating IPL (intense pulsed light) on the mixture coated on the current collector, the electrode manufactured according to the method, and a supercapacitor and rechargeable lithium battery including the electrode.

Abstract: Disclosed are a positive active material composition for a rechargeable lithium battery, a positive electrode for a rechargeable lithium battery including the same, and a rechargeable lithium battery including the positive electrode. The positive active material composition for a rechargeable lithium battery includes a nickel-based positive active material having pH of greater than or equal to about 11; V2O5; an aqueous binder, and a conductive material.

Abstract: A method is provided for forming a carbon-sulfur (C—S) battery cathode. The method forms a C—S nanocomposite material overlying metal current collector. A dielectric is formed overlying the C—S material that is permeable to lithium (Li) ions and electrolyte, but impermeable to polysulfides. Typically, the C—S nanocomposite material is porous and the dielectric forms a uniform coating of dielectric inside C—S nanocomposite pores. The dielectric includes a metal (M) oxide with an oxy bridge formation (M-O-M). The metal (M) may, for example, be Mg, Al, Si, Ti, Zn, In, Sn, Mn, Ni, or Cu. A C—S battery cathode, and a battery with a C—S are also provided.

Abstract: Provided is a secondary battery capable of preventing metal-plating and curling, the secondary battery including: at least one anode including an anode current collector and an anode active material layer coated on the anode current collector; at least one cathode including a cathode current collector, a cathode active material layer coated on one surface of the cathode current collector, which faces the anode, and an outermost coating layer coated on the other surface of the cathode current collector, which does not face the anode, the outermost coating layer being formed by coating an anode active material, an inorganic particle, or a mixture thereof; and at least one separator positioned between the cathode and the anode.

Abstract: A water-soluble binder composition including a first polymer having one or more hydroxyl groups in its repeating unit, and a polybasic acid compound. The binder composition is for an electrode and is environmentally friendly, has improved cycle life characteristics, and has improved adhesion strength of an active material and improved adhesion strength of the active material to a current collector. An electrode including the binder composition and a secondary battery including the electrode, are also provided.

Abstract: A secondary battery, including an electrode assembly including a first electrode, a second electrode, and a first electrode tab and a second electrode tab connected to the first electrode and the second electrode, respectively; a case including a receiving part that receives the electrode assembly, the case having an open side; a cap plate sealing the open side of the case; and a first electrode terminal and a second electrode terminal passing through the cap plate, the first electrode terminal being connected to the first electrode tab, the second electrode terminal being connected to the second electrode tab, the first electrode terminal including a first terminal, a lower terminal plate provided at a top end of the first terminal, and an upper terminal plate provided at a top end of the lower terminal plate, the first electrode tab being connected to a bottom end of the first terminal.

Abstract: A current collecting member includes first portion second portions. The second portion includes a base portion the first end portion of which is connected to the second end portion of the first portion, a twisted portion the first end portion of which is connected to the second end portion of the base portion, and an insertion portion the first end portion of which is connected to the second end portion of the twisted portion and which is inserted into a winding center of the electrode assembly, so as to be electrically connected to the electrode assembly.

Abstract: Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-fee and lead-free alkaline zinc electrodes.

Abstract: Conventional rechargeable batteries, such as lithium-ion batteries, are somewhat limited in their energy storage density. Sulfur-based batteries can provide improved energy storage density, but their use can be hampered by sulfur's low electrical conductivity. Energy storage devices, particularly batteries, can have a first electrode that includes a carbon nanotube aerogel, and an electroactive material containing sulfur that is incorporated in the carbon nanotube aerogel. Methods for forming an energy storage device can include incorporating an electroactive material containing sulfur in a carbon nanotube aerogel, compressing the carbon nanotube aerogel to form a compressed carbon nanotube aerogel, and disposing a first electrode containing the compressed carbon nanotube aerogel and the electroactive material in an electrolyte with a second electrode and a plurality of lithium ions, such that a separator material permeable to the lithium ions is between the first electrode and the second electrode.

Abstract: A rechargeable battery according to an embodiment of the present invention includes an electrode assembly, a case, electrode terminals, a cap plate, and current collecting plates. The electrode assembly includes a first electrode, a separator, and a second electrode. The case contains the electrode assembly. The electrode terminals are electrically connected to respective electrodes. The current collecting plates have support protrusions inserted into an interior of the electrode assembly, and welding protrusions welded to lateral ends of the electrode assembly.

Abstract: A lithium ion battery includes at least one battery cell. The battery cell includes a cathode electrode, an anode electrode, and a separator. The separator is sandwiched between the cathode electrode and the anode electrode. At least one of the cathode electrode and the anode electrode includes a current collector. The current collector is a carbon nanotube layer consisting of a plurality of carbon nanotubes.

Abstract: Provided is a negative electrode for a nonaqueous secondary battery which achieves both suppression of reductive decomposition of an electrolyte or an electrolytic solution and suppression of an increase in resistance. Also provided are a method for producing such a negative electrode and a nonaqueous secondary battery employing such a negative electrode. A polymer coating layer is formed so as to coat at least part of surfaces of negative electrode active material particles containing silicon oxide (SiOx; 0.5?x?1.6). The polymer coating layer contains a cationic polymer having a positive zeta potential under neutral conditions. Since silicon oxide has a negative zeta potential, a thin uniform coating layer can be formed owing to Coulomb's force.

Abstract: Disclosed are an anode active material for lithium secondary batteries and a method for manufacturing same, the anode active material comprising: a core part including a carbon-silicon complex and having a cavity therein; and a coated layer which is formed on the surface of the core part and includes a phosphor-based alloy.

Abstract: An electrode 10 for battery comprises: a base member 11 which serves as a current collector; and an active material layer 12 of an active material which is formed by a plurality of active material lines extending on a surface of the base member 11 along a predetermined longitudinal direction, wherein the active material lines include first lines 121 whose width in orthogonal cross section to the longitudinal direction is a first width W1 and second lines 122 whose width is a second width W2 which is wider than the first width W1 and whose height H2 measured from the surface of the base member is equal to or higher than a height H1 of the first lines.

Abstract: A method is provided for forming a rechargeable metal-ion battery with a non-aqueous hybrid ion electrolyte. The method provides a transition metal hexacyanometallate (TMHCM) cathode (AXM1YM2Z(CN)N.MH2O), where “A” is from a first group of metals, and M1 and M2 are transition metals. The electrolyte includes a first type of cation from the first group of metals, different than “A”. The method connects the cathode and anode to external circuitry to perform initial charge/discharge operations. As a result, a hybrid ion electrolyte is formed including the first type of cation and “A” cations. Subsequently, cations are inserted into the anode during charging, which alternatively may be only “A” cations, only the first type of cation, or both the “A” cations and the first type of cation. Only “A” cations, only the first type, or both “A” and the first type of cation are inserted into the TMHCM during discharge.

Abstract: A spirally-wound non-aqueous electrolyte secondary battery including a staked electrode assembly is disclosed. The stacked electrode assembly has first and second current collectors facing region disposed at a winding start end and at a winding terminal end, respectively. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion face each other through the separator in each of the first and second current collector facing regions. At least one of the positive or negative electrode current collector exposed portion has a first insulating member formed thereon in the first current collector facing region at the winding start end. At least one of the positive or negative electrode current collector exposed portion has a second insulating member formed thereon in the second current collector facing region at the winding terminal end.

Abstract: Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-fee and lead-free alkaline zinc electrodes.

Abstract: A prismatic sealed secondary cell that is excellent in current collection efficiency and current collection stability, and capable of high output discharge. In the prismatic sealed secondary cell a laminate-type or a wound laminate-type flat electrode assembly is housed in a prismatic cell case, a pair of current collector plates are disposed on a flat portion of the outermost surface of the core exposed portion of the first electrode plate constituting the flat electrode assembly so that the pair of current collector plates sandwich the flat portion in the thickness direction, and a columnar connection conductive member is interposed between two-divided core exposed portion laminates in the flat portion sandwiched between the pair of current collector plates, and the pair of current collector plates, the columnar connection conductive member and the two-divided core exposed portion laminates are welded to each other.

Abstract: The present invention relates to one or more electrode plates, which are installed with current collecting terminals at two or more sides thereof, and joined to an auxiliary conductor made of a material having a conductivity that is higher than that of the electrode plates. Current collecting terminals are installed at two or more sides of the auxiliary conductor, for linking with current collecting terminals installed at two or more sides of the electrode plates, and at least one of linked terminals is used as a general current collecting terminal to output current to an external part or to receive input current from the external part. Finally, insulators installed between the auxiliary conductor and the electrode plates to constitute an electrode unit.

Abstract: Provided is an anode for a lithium secondary battery capable of improving the performance and the life of a lithium air battery by forming the anode so that lithium metal is sealed, but migration of lithium ions is possible, and thus, preventing corrosion of a lithium metal and the generation of hydrogen gas caused by permeation of moisture and oxygen gas into the anode, a manufacturing method thereof, and a lithium air battery containing the same.

Abstract: In an aspect, an electrode for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same are provided.

Abstract: A novel electrical energy storage system that includes one or more cells. Each cell includes a polar liquid, a negatively-charged-surface electrode, and a positively-charged surface electrode. An interstitial space is defined between the electrodes. The negatively-charged-surface electrode has a hydrophilic surface adjacent the interstitial space. The liquid includes a self-organizing zone in the interstitial space. Each cell includes means to increase and/or decrease electrical potential between the electrodes. Increasing the electrical potential between the electrodes induces expansion of the self-organizing zone in the interstitial space. Decreasing electrical potential between the electrodes (e.g., via current discharge through an external load) causes a contraction of the self-organizing zone.

Abstract: There are provided an electrode assembly, a battery cell including the electrode assembly, and a device including the electrode assembly. The electrode assembly includes a combination of two or more electrode units having the same width and different lengths, wherein the electrode units are stacked so that a stepped portion is formed between the electrode units, and electrodes having different polarities face each other at an interface between the electrode units.

Abstract: A carbon-sulfur composite coated with a membrane containing alternating layers of oppositely charged polyelectrolytes is provided. A cathode containing the coated carbon-sulfur composite and a battery constructed with the cathode are also provided.

Abstract: A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H2<H3, and (H1?H2)?(H3?H2)÷2.

Abstract: A negative electrode active material for a zinc anode alkaline electrochemical cell includes (i) particles, comprising bismuth, and (ii) powder, comprising zinc. The particles have an average particle size of at most 135 nm.

Abstract: A bus bar, which is used with batteries wherein the positive terminal and the negative terminal are each formed from a different metal, and which has excellent mechanical strength and can suppress electrical resistance while preventing galvanic corrosion. The bus bar is bonded in one piece by metallically bonding: a cathode connector that is formed from the same metal as the positive terminal of a battery cell, and that can connect to the positive terminal; and an anode connector that is formed from the same metal as the negative terminal of the battery cell, and that can connect to the negative terminal.

Abstract: Current collectors and methods are provided that relate to electrodes that are useful in lithium polymer electrochemical cells. The provided current collectors include a metallic substrate, a substantially uniform nano-scale carbon coating, and an active electrode material. The coating has a maximum thickness of less than about 200 nanometers.

Abstract: The present invention provides one with a novel coated iron electrode. Provided is an iron based electrode comprising a single layer conductive substrate coated on at least one side with a multilayered coating, with each coating layer comprising an iron active material, and preferably a binder. The coating is comprised of at least two layers. Each layer has at least a different porosity or composition than an adjacent layer. The iron based electrode is useful in alkaline rechargeable batteries, particularly as a negative electrode in a Ni—Fe battery.

Abstract: Provided is a Ni—Fe battery comprising a high quality, high performance iron electrode. In one embodiment the iron electrode comprises a polyvinyl alcohol binder. The iron electrode of the Ni—Fe battery comprises a single conductive substrate coated on one or both sides with an iron active material.

Abstract: Provided is a high quality and high performance iron electrode, which is prepared by a continuous process. The process comprises preparing a formulation comprising an iron active material and a binder, and coating a continuous substrate material on at least one side with the formulation. The coated continuous substrate material is dried, compacted and blanked. A tab is then attached to the electrode. In one embodiment, the iron electrode comprises a PVA binder.

Abstract: A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of the negative electrode as determined by a mercury porosimetry, which includes a first peak having a mode diameter of 0.01 to 0.2 ?m, and a second peak having a mode diameter of 0.003 to 0.02 ?m. A volume of pores having a diameter of 0.01 to 0.2 ?m as determined by the mercury porosimetry is 0.05 to 0.5 mL per gram of the negative electrode excluding the weight of the current collector. A volume of pores having a diameter of 0.003 to 0.02 ?m as determined by the mercury porosimetry is 0.0001 to 0.02 mL per gram of the negative electrode excluding the weight of the current collector.

Abstract: An aqueous polyimide precursor solution composition, in which a polyamic acid, which is formed by the reaction of a tetracarboxylic acid component and a diamine component, is dissolved in an aqueous solvent together with an imidazole in an amount of 1.6 mole or more per mole of the tetracarboxylic acid component of the polyamic acid.

Abstract: A method for producing an electrode assembly, including a porous active material molded body, a solid electrolyte layer covering the surface of the active material molded body including the inside of each pore of the active material molded body, and a current collector in contact with the active material molded body exposed from the solid electrolyte layer, includes obtaining the active material molded body by heating a porous body formed using an active material at a temperature of 850° C. or higher and lower than the melting point of the active material, and forming the solid electrolyte layer by applying a liquid containing a constituent material of an inorganic solid electrolyte to the surface of the active material molded body including the inside of each pore of the active material molded body in a structure body including the active material molded body, and then performing a heat treatment.

Abstract: According to one embodiment, an electrode includes a current collector and an active material-including layer. The active material-including layer includes a first layer and a second layer. The first layer is provided on a surface of the current collector and includes lithium titanium oxide having a spinel structure. The second layer is provided on the first layer and includes a monoclinic ?-type titanium composite oxide.

Abstract: A flexible paper based battery system with a first a least partially electrically conductive nanomaterial infused paper sheet combined with a first lithium metal oxide electrode sheet disposed in an interference fit between the first infused paper sheet and a dielectric sheet, and a second at least partially electrically conductive nanomaterial infused paper sheet combined with a second lithium metal oxide electrode sheet disposed in an interference fit between the second infused paper sheet and the dielectric sheet. Where the first lithium metal oxide electrode sheet and the second lithium metal oxide sheet are different compositions.

Abstract: A fabricating method of a unit structure for accomplishing an electrode assembly formed by a stacking method, and an electrochemical cell including the same are disclosed. The fabricating method of the electrode assembly is characterized with fabricating the unit structure by conducting a first process of laminating and forming a bicell having a first electrode/separator/second electrode/separator/first electrode structure, conducting a second process of laminating a first separator on one of the first electrode among two of the first electrodes, and conducting a third process of laminating second separator/second electrode one by one on the other first electrode among the two of the first electrodes.

Abstract: Slurry for secondary batteries used for manufacturing a porous membrane superior in a thermal shrinkage resistance. Said slurry for secondary batteries comprises non-conductive particles and a water-soluble polymer, wherein the water-soluble polymer is a maleimide-maleic acid copolymer including a structural unit (a) shown by the below general formula (I) and a structural unit (b) shown by the below general formula (II); in which “R1” is hydrogen or a substitution group selected from the group consisting of an alkyl group having a carbon number of 1 to 6, a cycloalkyl group having a carbon number of 3 to 12, a phenyl group and a hydroxyphenyl group, and “X” is a residual group of maleic acid which may be neutralized with an ion other than hydrogen ion, dehydrated or esterified.

Abstract: An electrode assembly manufactured by a third method other than a stack folding method or a stack method, and an electrochemical device including thereof are disclosed. The electrode assembly includes at least one radical cell. The radical cell has a four-layered structure obtained by stacking a first electrode, a first separator, a second electrode, and a second separator one by one.

Abstract: A novel electrode current collector design that can improve performance and extend cycle life for rechargeable batteries based on metal electrodeposition is disclosed. The novel electrode current collector has a reduced effective surface area that can help to balance efficiencies between battery electrodes and to ensure non-uniform electrodeposition of metal onto the anode current collector during charge. One result is mitigation of internal short circuits that can cause a battery to fail prematurely.

Abstract: Disclosed is an anode active material for lithium secondary batteries that includes natural graphite particles consisting of spherical particles of agglomerated graphite sheets, outer surfaces of which are not coated with a carbon-based material, wherein the surfaces of the particles have a degree of amorphization of at least 0.3 within a range within which an R value [R=I1350/I1580] (I1350 is the intensity of Raman around 1350 cm?1 and I1580 is the intensity of Raman around 1580 cm?1) of a Raman spectrum is in the range of 0.30 to 1.0.

Abstract: A process includes casting a solution including poly(phenylene oxide), inorganic nanoparticles, a solvent, and a non-solvent on a substrate; and removing the solvent to form a porous film; wherein: the porous film is configured for use as a porous separator for a lithium ion battery.