Abstract: A fuel cell has a stack that includes a fuel electrode and air electrode on opposite sides of an electrolyte membrane. The fuel electrode includes first and second fuel ports communicative via a fuel flow path, and the air electrode includes first and second air ports communicative via an air flow path. The fuel cell also includes first and second fuel feeders communicative with the first and second fuel ports, and first and second air feeders communicative with the first and second air ports. The fuel cell also includes a fuel switching unit between the first and second fuel feeders that switches a fuel supply direction between the first and second fuel feeders. The fuel cell further includes an air switching unit between the first and second air feeders that switches an air supply direction between the first and second air feeders.

Abstract: A secondary battery includes an electrode assembly, a can housing the electrode assembly, the can having a long axis and a short axis, and a cap plate that seals an opening of the can. The can includes a first side surface and a second side surface that face each other so as to correspond to the short axis of the can, the first side surface and the second side surface having a first thickness, a third side surface and a fourth side surface that face each other so as to correspond to the long axis of the can, the third side surface and the fourth side surface having a second thickness, the second thickness being greater than the first thickness, and a bottom surface that is located opposite the opening of the can and contacts the first through fourth side surfaces, the bottom surface having a third thickness.

Abstract: An electricity storage module unit that can improve installation work efficiency, and that can be used to build an electricity storage pack that is versatile in terms of installation. An electricity storage module unit is provided with an electricity storage module that includes a plurality of electricity storage elements, and the electricity storage module unit includes: a wiring member that is connected to the electricity storage module; a wiring connection part that connects the wiring member to the wiring member of another electricity storage module unit or to an external electrical component; and a unit base plate on which the electricity storage module is mounted. The unit base plate has a plurality of routing grooves that allow the wiring member to be routed such that a direction in which the wiring member is routed is changeable.

Abstract: Provided is a secondary battery including a hydroxide-ion-conductive ceramic separator. The secondary battery includes a positive electrode; a negative electrode; an alkaline electrolytic solution; a ceramic separator that is composed of a hydroxide-ion-conductive inorganic solid electrolyte and separates the positive electrode from the negative electrode; a porous substrate disposed on at least one surface of the ceramic separator; and a container accommodating at least the negative electrode and the alkaline electrolytic solution, wherein the inorganic solid electrolyte is in the form of a membrane or layer densified enough to have water impermeability, and the porous substrate has a thickness of 100 to 1,800 ?m. According to the secondary battery of the present invention, the thickness and resistance of the ceramic separator are decreased without concern for reduced strength, and a reduction in energy density and an increase in internal resistance are effectively prevented.

Abstract: A resin-framed stepped membrane electrode assembly for a fuel cell, includes a stepped membrane electrode assembly and a resin frame member. The resin frame member surrounds a membrane outer periphery end of a solid polymer electrolyte membrane and includes an inner protruding portion protruding from the membrane outer periphery end toward a second electrode and is joined to the stepped membrane electrode assembly with an adhesive. The inner protruding portion includes a bank portion, a groove portion, and a ledge portion. The roughness of the bank surface is smaller than a roughness of the groove surface.

Abstract: An electrode for a metal-ion battery is provided wherein the active layer of the electrode comprises a plurality of porous particles comprising an electroactive material selected from silicon, germanium, tin, aluminium and mixtures thereof and a plurality of carbon particles selected from one or more of graphite, soft carbon and hard carbon. The ratio of the D50 particles size of the carbon particles to the D50 particle diameter of the porous particles is in the range of from 1.5 to 30. Also provided are rechargeable metal-ion batteries comprising said electrode and compositions of porous particles and carbon particles which may be used to prepare the active layer of said electrode.

Abstract: The present invention provides a nonaqueous secondary battery having a positive electrode, a negative electrode, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution contains a nonaqueous solvent and a supporting salt. The nonaqueous solvent contains N,N-dimethylformamide. The concentration of the supporting salt is 1 mol/L to 2 mol/L. At least one of the positive electrode and the negative electrode is provided with a collector, and an electrode mixture layer that is fixed to the collector and contains an active material and a binder. The binder contains a network polymer compound with a structure resulting from urethane-bonding of four-branch prepolymers having a polyethylene glycol backbone.

Abstract: Methods of making anode active materials include milling graphite particles with carbohydrate particles to yield graphite-carbohydrate particles, milling the particles with anode material and carbonizing to form composite anode material particles. The anode active materials thus producted are provided with an at least partially porous carbon-graphite coating with both electronic and ionic conductivity.

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

Abstract: A method for producing a lithium ion secondary battery comprising the positive electrode active material of formula (1), Li(2-0.5x)Mn1-xM1.5xO3 (x satisfies 0<x<1) . . . (1) (M in the formula is a lithium-containing transition metal oxide expressed by NiaCobMncM1d (in which 0<a?0.5, 0?b?0.33, 0<c?0.5, and 0?d?0.1 are satisfied, the sum of a, b, c, and d becomes 1, and M1 in the formula is an element selected from Li, V, Al, Zr, Ti, Nb, Fe, Cu, Cr, Mg, and Zn)). The method comprises a step to repeat charge-discharge multiple times (charge-discharge interval), and comprises a step to discharge a at a lower current density than the current density during charge a, during the discharge of the multiple charges-discharges, or, a step to discharge b at a lower current density than the current density during charge a after the electromotive force is naturally recovered by idle b after each charge-discharge.

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: The present disclosure relates to a battery module including a cartridge stack including a plurality of secondary batteries which each include an electrode lead and a plurality of cartridges which each accommodate at least one of the plurality of secondary batteries such that at least a portion of the electrode lead protrudes outwardly, and which are stacked in a plurality of stages, and an ICB housing which includes a stepped connection end, a power terminal installed fixedly to the connection end, and a bus bar electrically connecting the electrode lead with the power terminal, and which is mounted on a surface of the cartridge stack, in which the bus bar includes a first connection part which is provided in opposition to the power terminal, having the connection end therebetween, and is connected with the electrode lead, a second connection part which is provided in opposition to the first connection part, having the connection end therebetween, and is connected with the power terminal, and a connection pa

Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an aqueous electrolyte. The aqueous electrolyte includes a first aqueous electrolyte and a second aqueous electrolyte. The first aqueous electrolyte is in contact with at least part of the positive electrode and contains lithium ions. The second aqueous electrolyte is in contact with at least part of the negative electrode and contains lithium ions. The concentration of lithium ions contained in the second aqueous electrolyte is higher than the concentration of lithium ions contained in the first aqueous electrolyte.

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: An anode and a lithium ion battery employing the same are provided. The anode includes a lithium-containing layer and a single-ion conductive layer. The single-ion conductive layer includes an inorganic particle, a single-ion conductor polymer, and a binder. The single-ion conductor polymer has a first repeat unit of Formula (I), a second repeat unit of Formula (II), a third repeat unit of Formula (III), and a fourth repeat unit of Formula (IV) wherein R1 is O?M+, SO3?M+, N(SO2F)?M+, N(SO2CF3)?M+, N(SO2CF2CF3)?M+, COO?M+, or PO4?M+; M+ is Li+, Na+, K+, Cs+, or a combination thereof; and R2 is CH3, CH2CH3, or CH2CH2OCH2CH3. In particular, the weight ratio of the inorganic particle to the sum of the single-ion conductor polymer and the binder is from 4:1 to 9:1, and the weight ratio of the binder to the single-ion conductor polymer is from 1:1 to 9:1.

Abstract: Provided is a secondary battery including a positive electrode, a negative electrode, an alkaline electrolytic solution, a separator structure exhibiting water impermeability and separating the positive electrode from the negative electrode, and a container accommodating at least the negative electrode and the alkaline electrolytic solution. The separator structure includes a porous substrate-supported ceramic separator, and a reinforcement having a lattice structure having openings and reinforcing the periphery and/or at least one surface of the porous substrate-supported ceramic separator. The porous substrate-supported ceramic separator includes a ceramic separator composed of an inorganic solid electrolyte having hydroxide ion conductivity in the form of a membrane or layer densified enough to have water impermeability, and a porous substrate disposed on at least one surface of the separator.

Abstract: Compositions for use in an anode of a secondary battery, anodes, and lithium ion batteries are provided which include embedded silicon carbide nanofibers. Methods of production and use are further described.

Abstract: A battery electrode composition is provided comprising core-shell composites. Each of the composites may comprise a core and a multi-functional shell.

Abstract: A traction battery includes cells stacked in an array and having terminals, and endplates sandwiching the array. A busbar module extends between the endplates and includes slots and busbars interleaved along a length of the busbar module. The terminals extend through the slots and connect to the busbars. The busbar module includes a pair of end pieces and a center piece that are separately formed and secured together by connection features.

Abstract: The present disclosure relates to a method for making a lithium ion battery electrode. The method comprises providing a slurry comprising an electrode active material, an adhesive, a dispersant, and a conductive agent; spreading the slurry over a metal sheet to form an electrode active material layer; applying a carbon nanotube layer structure on a surface of the electrode active material layer to form a precursor; and drying the precursor.