Abstract: A negative electrode material for a lithium-ion secondary battery, in which the negative electrode material includes a composite particle including a spherical graphite particle and plural graphite particles that have a compressed shape and that aggregate or are combined so as to have nonparallel orientation planes, and the negative electrode material has an R-value in a Raman measurement of from 0.03 to 0.10, and has a pore volume as obtained by mercury porosimetry of from 0.2 mL/g to 1.0 mL/g in a pore diameter range of from 0.1 ?m to 8 ?m.

Abstract: Each battery block is formed by a plurality of unit cells arranged. Coupling a plurality of battery blocks with each other forms a battery module. Guiding members, through which a rail is made to pass, is provided on an external surface of the battery block, where the rail is used to couple the battery block with another battery block. The guiding members are provided on at least two adjacent lateral faces of four lateral faces excluding electrode faces of the battery block.

Abstract: A method for forming an electrical connection to a microscale electrically conductive fiber material electrode element, such as a carbon fiber electrode element of a Pb-acid battery, comprises pressure impregnating into the fiber material an electrically conductive lug material, such as molten Pb metal, to surround and/or penetrate fibers and form an electrical connection to the fiber material and provide a lug for external connection of the electrode element. Other methods of forming a lug for external connection are also disclosed.

Abstract: A lithium ion battery includes: a negative electrode in which a state of charge at a potential to be 0.1 V with respect to a lithium potential is 60% or more; and a positive electrode containing a lithium-containing composite metal oxide, and a capacity ratio of the positive electrode and the negative electrode (negative electrode capacity/positive electrode capacity) is 1 or more and less than 1.2. In the lithium ion battery described above, the lithium-containing composite metal oxide contains layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn).

Abstract: A battery housing for accommodating one or more cell blocks of a battery provides the interstice between an outer wall and an inner wall with supported vacuum insulation composed of a porous support material. This vacuum insulation can be switched between an insulation state and a transient state. The interstice is additionally provided with cooling elements. This battery housing offers crash-safe accommodation of the cell blocks accommodated in the battery housing, for one thing, and furthermore offers passive or controllable and/or regulatable thermal management to the effect that the cell blocks accommodated in the battery housing can be cooled or heated as needed, in any case kept in a permissible temperature range in every operating state.

Abstract: A fuel cell system mounted in a vehicle includes a fuel cell supplying electric power to a motor driving the vehicle, a pump supplying oxygen to the fuel cell, an accelerator position detection unit detecting an accelerator depression amount of the vehicle, and a control unit calculating electric power required to be generated by the fuel cell and electric power required for driving of the pump based on the accelerator depression amount and controlling the pump based on the electric power required for the driving, in which the control unit calculates the electric power required for the driving such that a rate of increase in the electric power required for the driving exceeds a rate of increase in the electric power required to be generated when the calculated electric power required to be generated increases.

Abstract: A sealing arrangement of solid oxide cell stacks is disclosed. The sealing arrangement includes a gasket structure between a flow field plate and an electrolyte element, and between flow field plates of repetitious structures, with first sealing layers being in contact with the flow field plate and the gasket structure, the first sealing layers being overlaid over a selected area of the flow field plate and over a selected area of the gasket structure according to corrosion minimization criteria and on the basis of sealing function criteria.

Abstract: An electrolyte-circulating battery in which the electrolyte temperature is easily controlled is provided. An electrolyte-circulating battery includes a battery cell and a circulation channel that circulates an electrolyte to the battery cell. The electrolyte-circulating battery comprises a heat exchanger installed in the circulation channel and configured to cool the electrolyte; a bypass flow channel that connects an electrolyte inflow side and an electrolyte outflow side of the heat exchanger to each other so as to bypass the heat exchanger; and a flow rate variable mechanism capable of varying a flow rate of the electrolyte flowing through the heat exchanger and a flow rate of the electrolyte flowing through the bypass flow channel.

Abstract: A negative electrode material for a nonaqueous electrolyte secondary battery of the embodiment include a granular composite product that includes: an organic resin composition; a metal dispersed in the organic resin composition or a metal and an oxide of the metal dispersed in the organic resin composition; an electroconductive carbonaceous material, wherein an elemental ratio A/B (mass/mass) of carbon (A) and hydrogen (B) is 1 or lower.

Abstract: A rechargeable battery includes an electrode assembly having electrodes located on either side of a separator; a case housing the electrode assembly; a cap plate sealing the case; a lead tab that is connected to each of the electrodes; and a terminal that is connected to a respective lead tab and protrudes from the case through a terminal hole, wherein the terminal comprises a different material than the lead tab, and wherein an insulating portion is located between the terminal and the cap plate.

Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.

Abstract: Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.

Abstract: The present invention relates to a redox flow battery stack including: an ion exchange membrane 180; and flow frames 160A and 160B disposed at both sides of the ion exchange membrane 180, respectively, in which semicircular grooves are provided on the flow frames 160A and 160B, and the semicircular grooves 161A and 162A of the flow frame 160A are fitted with the semicircular grooves 161B and 162B of the corresponding flow frame 160B during assembly to form at least one of an inlet port and an outlet port.

Abstract: In a configuration where an annular thin portion 50 is formed integrally with a lid main body 4 by coining, a bulging portion 6 is formed integrally with the lid main body 4 so as to bulge out from the lid main body 4, and the annular thin portion 50 is provided in a flat portion 61 of the bulging portion 6.

Abstract: A solid-state lithium battery cell comprises a support, and a plurality of electrodes on the support, the electrodes comprising a cathode and an anode. An electrolyte lying between the cathode and anode comprises an oxygen-rich electrolyte layer. In another version, a multilayer electrolyte comprises an oxygen-rich electrolyte layer and an oxygen-deficient electrolyte layer.

Abstract: A battery assembly includes a thermal shield. The thermal shield protects battery cells in the battery assembly from hot gases vented by a neighboring cell experiencing thermal runaway. The thermal shield acts as a one-way valve, allowing the cell experiencing thermal runaway to properly vent away hot gases, but still protecting the rest of the cells in the battery pack from the hot gases.

Abstract: Methods and apparatus to form biocompatible energization elements are described. In some examples, the methods and apparatus to form the biocompatible energization elements involve forming cavities composing active cathode chemistry. The active elements of the cathode and anode are sealed with a biocompatible material. In some examples, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.

Abstract: A method for producing a non-aqueous electrolyte secondary battery according to the present invention is characterized in that the method comprises the steps of: placing an electrode body into an outer casing, the electrode body having a folded-separator structure or a wound structure in which a positive electrode including a positive-electrode active material and a negative electrode including a negative-electrode active material are stacked with a separator interposed therebetween; placing a non-aqueous electrolyte free of a flame retardant into the outer casing; charging the electrode body by applying a voltage between the positive electrode and the negative electrode placed in the outer casing; placing a flame retardant into the outer casing; and sealing the outer casing, wherein the step of charging is a step of charging the electrode body with the state in which the surface of the positive-electrode active material and the surface of the negative-electrode active material are in contact with the non-aqu

Abstract: An activation apparatus of fuel cell stacks, which automatically performs activation and performance evaluation processes on the fuel cell stacks when the fuel cell stacks have entered a frame, includes i) a connector connection assembly configured to connect a plurality of connector probes to cell terminals of the fuel cell stack, ii) an output cable connection assembly configured to connect positive (+) output cables to the first side of the fuel cell stack, and iii) a fluid supply pipe connection assembly configured to connect negative (?) output cables to the second side of the fuel cell stack and to connect a fluid supply pipe to the manifold of the fuel cell stack.

Abstract: According to one embodiment, a bus bar electrically connects terminals of a cathode and an anode of a battery module, the battery module being formed by coupling a plurality of battery cells each including the terminals of the cathode and the anode. The bus bar includes a first connection portion formed of an electrically conductive, substantially conical elastic body which abuts on the terminal of a first battery cell of the battery cells; a second connection portion formed of an electrically conductive, substantially conical elastic body which abuts on the terminal of a second battery cell which is different from the first battery cell; and an electrically conductive plate-shaped member in which the first and second connection portions are formed spaced apart in accordance with a distance between the terminals.