Abstract: The invention relates to novel materials of the formula: AuM1vM2wM3x02±? wherein A is one or more alkali metals; M1 comprises one or more redox active metals with an oxidation state in the range +2 to +4; M2 comprises tin, optionally in combination with one or more transition metals; M3 comprises one or more transition metals either alone or in combination with one or more non-transition elements selected from alkali metals, alkaline earth metals, other metals, metalloids and non-metals, with an oxidation state in the range +1 to +5; wherein the oxidation state of M1, M2, and M3 are chosen to maintain charge neutrality and further wherein ? is in the range 0???0.4; U is in the range 0.3<U<2; V is in the range 0.1?V<0.75; W is in the range 0<W<0.75; X is in the range 0?X<0.5; and (U+V+W+X)<4.0. Such materials are useful, for example as electrode materials, in rechargeable battery applications.

Abstract: A gas diffusion electrode substrate that is used in a fuel cell, wherein a microporous layer constituted by a carbon based filler and a fluororesin is formed on one surface of the electrode substrate, the sliding angle of water on the surface on the opposite side of the surface on which the microporous layer is formed is 30 degrees or less, and the through-plane gas permeation resistance is 15 to 190 mmAq.

Abstract: An electricity storage device includes an electrode assembly and a load applying mechanism. The load applying mechanism applies, to the electrode assembly, a load in a direction in which the positive electrode and the negative electrode are stacked in the electrode assembly. The negative electrode includes a metal foil and an active material layer that covers at least part of the metal foil and contains a carbon-based material as an active material. The density of the carbon-based material in the active material layer is 1.2 g/cm3 or higher. The degree of orientation that is defined as a ratio (I(100)/I(002)) of an X-ray diffraction intensity I(100) of a (100) plane to a diffraction intensity I(002) of a (002) plane in the active material layer is lower than or equal to 0.3. The load applied by the load applying mechanism is greater than or equal to 0.22 MPa.

Abstract: Provided is a lithium ion capacitor comprising, accommodated within an outer casing: an electrode stack obtained by stacking a negative electrode in which a negative-electrode active material layer including a carbon material as the negative-electrode active material is disposed on a negative-electrode collector, a separator comprising a polyethylene-containing polyolefin resin, and a positive electrode in which a positive-electrode active material layer including a positive-electrode active material layer comprising a carbon material or a carbonaceous material is disposed on a positive-electrode collector; and a non-aqueous electrolyte solution including a lithium ion-containing electrolyte.

Abstract: A conductive film includes a layer 1 formed by a conductive material 1 that includes a polymer material 1 containing any of (1) an amine and an epoxy resin (where the epoxy resin and the amine are mixed in a ratio of 1.0 or more in terms of the ratio of the number of active hydrogen atoms in the amine with respect to the number of functional groups in the epoxy resin), (2) a phenoxy resin and an epoxy resin, (3) a saturated hydrocarbon polymer having a hydroxyl group, and (4) a curable resin and an elastomer and conductive particles 1. The conductive film has excellent stability in an equilibrium potential environment in a negative electrode and low electric resistance per unit area in the thickness direction. A multilayer conductive film including the conductive film achieves excellent interlayer adhesion, and using them as a current collector enables the production of a battery satisfying both weight reduction and durability.

Abstract: A binder composition for a negative electrode of a secondary battery, including a particulate binder, and a water-soluble polymer containing an acidic functional group, wherein the water-soluble polymer has an ion conductivity of 1×10?5 to 1×10?3 S/cm; and a swelling degree of the water-soluble polymer to a liquid with a solubility parameter of 8 to 13 (cal/cm3)1/2 is 1.0 to 2.0 times a swelling degree of the particulate binder measured under the same conditions; and use thereof.

Abstract: Embodiments of the present technology include graphane-metal and graphene-metal composites. An example composite comprises a porous metal foam substrate, a graphane or graphene layer deposited to the porous metal foam substrate, a metal layer applied to the graphane or graphene layer, and another graphane or graphene layer deposited to the metal layer; the multilayered porous metal foam substrate being compressed to form a graphane-metal or graphene-metal composite.

Abstract: A current collector for a secondary battery (1) of the present invention includes a resin layer (2) having electrical conductivity, and an ion barrier layer (3) provided on the surface of the resin layer (2). The ion barrier layer (3) contains ion trapping particles (6) in which metal compounds (5) are provided on the surfaces of metal containing particles (4). The ion trapping particles (6) are continuously provided from an interface (7) between the resin layer (2) and the ion barrier layer (3) toward a surface (3a) of the ion barrier layer (3). Thus, the ion barrier layer (3) prevents from the entry of ions, so that the ion adsorption in the current collector (1) can be decreased.

Abstract: Provided is a method for producing a porous polyimide film with which it is possible to suppress the occurrence of curling in the polyimide-fine particle composite film obtained by firing the unfired composite film. The method for producing a porous polyimide film of the present invention includes, in the following order: forming an unfired composite film using a varnish that contains a resin including polyamide acid and/or polyimide, fine particles, and a solvent; immersing the unfired composite film in a solvent including water; firing the unfired composite film to obtain a polyimide-fine particle composite film; and removing the fine particles from the polyimide-fine particle composite film.

Abstract: An object is to form a positive electrode active material having small and highly uniform particles by a simple process. A template is formed by forming holes in the template by a nanoimprinting method, and the template is filled with a gel-like LiFePO4 material, whereby small-sized LiFePO4 particles are formed and are used as the positive electrode active material of a secondary battery. The particle size can be reduced to less than 50 nm. Further, when the LiFePO4 particles are sintered, the template may be burned down. By making the particle size of the positive electrode active material smaller than the conventional one, a positive electrode that lithium is injected into and extracted from easily can be manufactured.

Abstract: Techniques for dynamically changing internal state of a battery are described herein. Generally, different battery configurations are described that enable transitions between different battery power states, such as to accommodate different battery charge and/or discharge scenarios.

Abstract: Provided is a non-aqueous electrolyte secondary battery which exhibits excellent energy density and excellent input/output density (and especially output density in low SOC regions). This invention discloses a non-aqueous electrolyte secondary battery that includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode active material layers formed on the positive electrode current collector. The positive electrode active material layer has two regions that are demarcated in a surface direction of the positive electrode current collector, which are a first region 14a containing mainly a positive active material of lithium iron phosphate, and a second region 14b containing mainly a positive active material of a lithium-transition metal composite oxide.

Abstract: A battery capable of improving the cycle characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode active material layer containing an anode active material having silicon as an element, and a coating layer that coats the anode active material layer, and contains an oxide of a 3d transition metal element at least one selected from the group consisting of iron, cobalt, and nickel.

Abstract: The present application is directed to electric double layer capacitance (EDLC) devices. In one aspect, the present application is directed to an electrode comprising an activated carbon cryogel having a tunable pore structure wherein: the surface area is at least 1500 m2/g as determined by nitrogen sorption at 77K and BET analysis; and the pore structure comprises a pore volume ranging from about 0.01 cc/g to about 0.25 cc/g for pores having a pore diameter of 0.6 to 1.0 nm. In another aspect, the present application is directed to an Electric Double Layer Capacitor (EDLC) device comprising an activated cryogel.

Abstract: The invention relates to an electrode coil for a galvanic element, comprising a first electrode (4), a second electrode (6), a separator, and a reference electrode (8). The first electrode (4) and the second electrode (6) are insulated from each other by the separator, and the reference electrode (8) is arranged between the first electrode (4) and the second electrode (6) and is adhered to the first electrode (4) or to the second electrode (6). The invention further relates to a galvanic element comprising such an electrode coil and to a method for producing such an electrode coil.

Abstract: The present invention relates to positive electrode active material slurry of which degree of non-crystallinity is controlled by including a rubber-based binder in a specific ratio, a positive electrode including a positive electrode active material layer formed therefrom, and a lithium secondary battery including the positive electrode. The positive electrode active material layer formed from the positive electrode active material slurry has enhanced flexibility and rolling property, and internal short circuits, high voltage defects and capacity decline of the lithium secondary battery using the positive electrode including the same are capable of being suppressed.

Abstract: A battery mounting structure to enhance rigidity of a vehicle body without increasing a vehicle weight is provided. The battery mounting structure comprises a pair of frame members extending longitudinally and a battery pack an all-solid battery having a cell stack. The battery pack is disposed between the frame members. The battery pack is connected to the frame member through a connection member.

Abstract: Non-aqueous electrolyte storage element including; positive electrode including positive electrode material layer, which contains positive electrode active material capable of reversibly accumulating and releasing anions; negative electrode including negative electrode material layer, which contains negative electrode active material capable of reversibly accumulating and releasing cations; separator disposed between the positive electrode and the negative electrode; and non-aqueous electrolyte containing electrolyte salt, the non-aqueous electrolyte storage element satisfying formulae: 0.5?[(V1+V2+V3)/V4]?0.61; and 0.14?P1/P2?0.

Abstract: A bimodal lithium transition metal oxide based powder for a rechargeable battery, comprising: a first lithium transition metal oxide based powder, either comprising a material having a layered crystal structure consisting of the elements Li, a metal M and oxygen, wherein the Li content is stoichiometrically controlled, wherein the metal M has the formula M=Co1?aM?a, with 0?a?0.05, and wherein M? is either one or more metals of the group consisting of Al, Ga and B; or comprising a core material and a surface layer, the core having a layered crystal structure consisting of the elements Li, a metal M and oxygen, wherein the Li content is stoichiometrically controlled, wherein the metal M has the formula M=Co1?aM?a, with 0?a?0.

Abstract: In order to allow for a compact configuration of a battery with an increased energy density/volume ratio together with low production costs, the invention specifies a battery electrode and a method for producing same, wherein an arrester region is arranged on a collector substrate such that it is predominantly surrounded by a coating film.

Abstract: A method of forming a sulfur-based cathode material includes: 1) providing a sulfur-based nanostructure; 2) coating the nanostructure with an encapsulating material to form a shell surrounding the nanostructure; and 3) removing a portion of the nanostructure through the shell to form a void within the shell, with a remaining portion of the nanostructure disposed within the shell.

Abstract: A silicon secondary battery, by substitutions of silicon for lithium, enables decreasing of preparations cost and minimizing of environmental pollutions. By laminate pressing multiple times a positive or negative electrode material, the present invention enables increasing of the density of a positive or negative electrode active material, thereby increasing current density and capacity. By having mesh plates equipped inside the positive electrode active material and the negative electrode active material, the present invention enables effective moving of electrons. By enabling common use of an electrode, of a silicon secondary battery, connected during a serial connections of the silicon secondary battery, the present invention enables decreasing of the thickness of a silicon secondary battery assembly and increasing of output voltage. By being integrally formed with a PCB or a chip and supplying a power source, the present invention plays the role of a backup power source for instant discharging.

Abstract: The invention is directed in a first aspect to electron-conducting porous compositions comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein, particularly such compositions having an ordered framework structure. The invention is also directed to composites of such S/N-doped electron-conducting porous aromatic framework (PAF) compositions, or composites of an S/N-doped mesoporous carbon composition, which includes the S/N-doped composition in admixture with a binder, and optionally, conductive carbon. The invention is further directed to cathodes for a lithium-sulfur battery in which such composites are incorporated.

Abstract: A high energy density rechargeable metal-ion battery includes an anode energy layer, a cathode energy layer, a separator for separating the anode and the cathode energy layers, an anode current collector for transferring electrons to and from the anode energy layer, the battery characterized by a maximum safe voltage for avoiding overcharge, and an interrupt layer that interrupts current within the battery upon exposure to voltage in excess of the maximum safe voltage. The interrupt layer is between the anode energy layer and current collector. When unactivated, it is laminated to the cathode current collector, conducting current therethrough. When activated, the interrupt layer delaminates from the anode current collector, interrupting current therethrough.

Abstract: A lithium-sulphur electrochemical cell comprising a laminate comprising: a lithium anode comprising a layer of lithium metal foil or lithium metal alloy foil; a cathode comprising an active sulphur material; a porous separator disposed between the lithium anode and the cathode; and an electrolyte; wherein: the laminate is folded in a zigzag configuration; and the cathode is offset relative to the lithium anode in the laminate, such that the cathode is accessible from one side of the laminate and the lithium anode is accessible from an opposite side of the laminate.

Abstract: An improved high energy density rechargeable (HEDR) battery with an anode energy layer, a cathode energy layer, a separator between the anode and cathode energy layers for preventing internal discharge thereof, and at least one current collector for transferring electrons to and from either the anode or cathode energy layer, includes a resistive layer interposed between the separator and one of the current collectors for limiting the rate of internal discharge through the failed separator in the event of separator failure. The resistive layer has a fixed resistivity at temperatures between a preferred temperature range and an upper temperature safety limit for operating the battery. The resistive layer serves to avoid temperatures in excess of the upper temperature safety limit in the event of separator failure in the battery, and a fixed resistivity of the resistive layer is greater than the internal resistivity of either energy layer.

Abstract: Compositions and methods of making are provided for coated electrodes and batteries comprising the same. The compositions may comprise a base composition having an active material selected from the group consisting of LiCoO2, LiMn2O4, Li2MnO3, LiNiO2, LiMn1.5Ni0.5O4, LiFePO4, Li2FePO4F, Li3CoNiMnO6, Li(LiaNixMnyCoz)O2, and mixtures thereof. The compositions may also comprise a coating composition that covers at least a portion of the base composition, wherein the coating composition comprises a non-metal or metalloid element. The methods of making comprise providing the base composition and a doped carbon coating composition, and mixing the coating composition with the base electrode composition at an elevated temperature in a flowing inert gas atmosphere.

Abstract: The present invention relates to an electrode assembly comprising fiber-shaped structures. The electrode assembly for a battery according to one embodiment of the present invention comprises: a first electrode including a plurality of first fiber-shaped structures extending in a first direction; a second electrode including a plurality of second fiber-shaped structures which extend in a second direction other than the first direction, and the polarities of which are different from the polarities of the first structures; and a first separator film interposed between the first structures and the second structures which intersect with each other, so as to separate the first structures and the second structures from each other.

Abstract: A method is provided for preparing an all-solid battery that at least includes a negative electrode layer containing a negative electrode active material and a sulfide solid electrolyte, and a negative electrode current collector containing a metal that is in contact with the negative electrode layer and can react with the sulfide solid electrolyte, in which a sulfur compound generated by a reaction of the metal contained in the negative electrode current collector and the sulfide solid electrolyte contained in the negative electrode layer is not present in a contact portion of the negative electrode layer and the negative electrode current collector.

Abstract: The invention relates to a metallic lithium rechargeable electrochemical accumulator, comprising at least one lithium metal electrode and at least one polymeric electrolyte gel. Said accumulator is capable of operating at temperatures from ?20 to 60° C., essentially without formation of lithium dendrites on the whole surface of the metallic lithium electrode. The above is also wherein a particularly long life, even with intensive use at low temperature. Said inventive rechargeable accumulator can be produced by use of a production method with particular application of temperature control during the specific production stages. As a result of the extremely high electrochemical performance of said accumulator, in particular the remarkable stability thereof, said accumulator can be used in new application fields such as hybrid vehicles, electric vehicles and emergency supply systems such as those of the UPS type.

Abstract: The present invention relates to an anode active material for a lithium secondary battery, comprising a carbon material, and a coating layer formed on the surface of particles of the carbon material and having a plurality of Sn-based domains having an average diameter of 1 ?m or less. The inventive anode active material having a Sn-based domains coating layer on the surface of a carbon material can surprisingly prevent stress due to volume expansion which generates by an alloy of Sn and lithium. Also, the inventive method for preparing an anode active material can easily control the thickness of the coating layer.

Abstract: In order to allow for maximum freedom of design in the selection of an electrode or battery shape, a compact configuration and low production costs, the invention specifies a battery electrode and a method for producing same, wherein a collector substrate is coated with a coating film and at least one arrester region is produced thereon by removing the coating film by means of laser ablation.

Abstract: Nanostructured carbon electrode usable for electrochemical devices and methods of fabricating the same. The method of fabricating a nanostructured carbon electrode includes providing a carbon material of polyaromatic hydrocarbon (PAH), mixing the carbon material of PAH with a surfactant in a solution to form a suspension thereof; depositing the suspension onto a substrate to form a layered structure; and sintering the layered structure at a temperature for a period of time to form a nanostructured carbon electrode having a film of PAH.

Abstract: Embodiments of the present technology include graphene-metal composites. An example graphene-metal composite comprises a porous metal foam substrate, a graphene layer deposited to the porous metal foam substrate, a metal layer applied to the graphene layer, and another graphene layer deposited to the metal layer; the multilayered porous metal foam substrate being compressed to form a graphene-metal composite.

Abstract: Provided is a design method of a secondary battery, including: calculating temperature profile per position of a battery in a stacked direction of a stack-type secondary battery in which cathodes and anodes are alternately stacked with separators interposed therebetween at the time of charging and discharging the stack-type secondary battery; and selecting cathode active materials used for cathodes per corresponding positions by the temperature profile per position.

Abstract: A binder for a battery including polymethyl methacrylate particles and a binder polymer is disclosed. Additionally, a binder composition, and an anode and a lithium battery which include the binder are also disclosed.

Abstract: Embodiments of the invention generally relate to solid state battery structures, such as Li-ion batteries, methods of fabrication and tools for fabricating the batteries. One or more electrodes and the separator may each be cast using a green tape approach wherein a mixture of active material, conductive additive, polymer binder and/or solid electrolyte are molded or extruded in a roll to roll or segmented sheet/disk process to make green tape, green disks or green sheets. A method of fabricating a solid state battery may include: preparing and/or providing a green sheet of positive electrode material; preparing and/or providing a green sheet of separator material; laminating together the green sheet of positive electrode material and the green sheet of separator material to form a laminated green stack; and sintering the laminated green stack to form a sintered stack comprising a positive electrode and a separator.

Abstract: This invention provides metal-foam electrodes for batteries and fuel cells. In some variations, an electrode includes a first metal layer disposed on a second metal layer, wherein the first metal layer comprises an electrically conductive, open-cell metal foam with an average cell diameter of about 25 ?m or less. The structure also includes smaller pores between the cells. The electrode forms a one piece monolithic structure and allows thicker electrodes than are possible with current electrode-fabrication techniques. These electrodes are formed from an all-fluidic plating solution. The disclosed structures increase energy density in batteries and power density in fuel cells.

Abstract: A non-aqueous electrolyte secondary battery, when using an aqueous binder as a binder for a negative electrode active material, effectively exhausts the gas generated from an electrode, and thus, even when using it for a long period of time, a decrease in battery capacity is low. The non-aqueous electrolyte secondary battery includes a positive electrode active material layer on a surface of a positive electrode current collector, a negative electrode active material layer comprising an aqueous binder on a surface of a negative electrode current collector, a separator for maintaining an electrolytic solution, and a gas releasing means for releasing a gas generated within the power generating element to an extra space inside of the outer casing, and in which the ratio value of a volume of the extra space to a volume of pores included in the power generating element is 0.5 to 1.0.

Abstract: An electrode structure has an interdigitated layer of at least a first material and a second material, the second material having either higher or similar electrical conductivity of the first material and being more ionically conductivity than the first material, a cross-section of the two materials being non-rectangular.

Abstract: An energy storage device includes a nanostructured network and an electrolyte in contact with the nanostructured network. The nanostructured network is an electrically conducting nanostructured network that provides combined functions of an electrode and a charge collector of the energy storage device. An electrical device includes an energy storage device that includes a nanostructured network and an electrolyte in contact with the nanostructured network, and a load-bearing electrical circuit electrically connected to the electrical energy storage device. The energy storage device is suitable to power the electrical device while in operation.

Abstract: In a lithium-ion secondary battery (100), positive electrode active material particles (610) each include a shell portion (612) made of a layered lithium-transition metal oxide, a hollow portion (614) formed inside the shell portion (612), and a through-hole (616) penetrating through the shell portion (612). A positive electrode active material layer (223) has a density A of 1.80 g/cm3?A?2.35 g/cm3, and a negative electrode active material layer (243) has a density B of 0.95 g/cm3?B?1.25 g/cm3.

Abstract: A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of two different types, one of the types forming pore channels or porous structure and one of the types being more compressible than others type.

Abstract: A microbattery structure for hermetically sealed microbatteries is provided. In one embodiment, the microbattery structure includes a first silicon substrate containing at least one pedestal which houses a cathode material of a microbattery and at least one depression which houses A FIRST sealant material of the microbattery. The structure further includes a second silicon substrate containing at least one pedestal which houses an anode material of the microbattery and at least one depression which houses a second sealant material of the microbattery. An insulated centerpiece is bonded to the first sealant material present in at least two depressions on the first silicon substrate. An interlock structure is formed by aligning and superimposing the second silicon substrate on the first silicon substrate in a mortise and tenon fashion and sealing the two substrates using a high force.

Abstract: Provided herein are nanostructure networks having high energy storage, electrochemically active electrode materials including nanostructure networks having high energy storage, as well as electrodes and batteries including the nanostructure networks having high energy storage. According to various implementations, the nanostructure networks have high energy density as well as long cycle life. In some implementations, the nanostructure networks include a conductive network embedded with electrochemically active material. In some implementations, silicon is used as the electrochemically active material. The conductive network may be a metal network such as a copper nanostructure network. Methods of manufacturing the nanostructure networks and electrodes are provided. In some implementations, metal nanostructures can be synthesized in a solution that contains silicon powder to make a composite network structure that contains both.

Abstract: Active materials for anodes for lithium ion devices are disclosed. An active may comprise germanium nano-particles having a particle size of 20 to 100 nm, wherein the weight percentage of the germanium is between 72 to 96 weight % of the total weight of the active material; boron carbide nano-particles having a particle size of 20 to 100 nm, wherein the weight percentage of boron in the active material is between 3 to 6 weight % of the total weight of the active material; and tungsten carbide nano-particles having a particle size of 20 to 60 nm, wherein the weight percentage of tungsten in the active material is between 6 to 25 weight % of the total weight of the active material.

Abstract: A negative electrode material includes an active material. The active material includes a silicon core selected from the group consisting of Si, SiO2, SiOx (0<x<2), a silicon alloy, and a combination thereof. The active material also includes a hard carbon coating formed on the silicon core. The negative electrode material further includes a non-fluorinated binder. The negative electrode material also includes a conductive filler. The loading of the active material in the negative electrode material is greater than 2 mg/cm2.

Abstract: A lithium ion conductor represented by Formula 1: Li1+x+2yAlxMgyM2?x?y(PO4)3 ??Formula 1 wherein, in Formula 1, M includes at least one of titanium (Ti), germanium (Ge), zirconium (Zr), hafnium (Hf), and tin (Sn), 0<x<0.6, and 0<y<0.2.

Abstract: A secondary battery capable of improving cycle characteristics is provided. An anode includes: an anode active material layer on an anode current collector, the anode active material layer including a plurality of anode active material particles, in which the average particle area of the plurality of anode active material particles observed from a surface of the anode active material layer is within a range of 1 ?m2 to 60 ?m2 both inclusive.

Abstract: A non-aqueous electrolyte secondary battery (large size cell) that has high output (low resistance) and high capacity makes it possible to improve the cycle characteristics of a battery by controlling the balance of the resistance between positive and negative electrodes. The non-aqueous electrolyte secondary battery has a positive electrode which comprises an active material and a conductive aid, a negative electrode, and an electrolyte layer, and having battery capacity of 3 Ah or more and an absolute value of battery internal resistance of 30 m? or less, in which the non-aqueous electrolyte second battery is characterized in that the zeta (?) potential between the active material and the conductive aid is in the range of 0.3 mV to 2 mV as an absolute value.