Abstract: A connecting piece includes a stamped metal sheet for conductively connecting poles of two batteries or battery cells, which connecting piece has a main body with a recess, wherein at least one insert element is arranged in the inner region of at least one recess. Either the insert elements have a groove on the circumferential face thereof, said groove running at least in regions of the circumference, or the main body has a groove on the inner face of the at least one recess therein, said groove running at least in regions of the circumference. The respectively corresponding component has a projection which is generated by material displacement when the two or one of the two components are/is pressed and which engages in the groove in an interlocking manner, so that the main body and each insert element are connected to one another, in an interlocking manner at least in regions, along the circumference of the insert element.

Abstract: A composite precursor represented by Formula 1, a composite prepared therefrom represented by Formula 2, a method of preparing a composite precursor and a composite, a positive electrode for lithium secondary battery including the same, and a lithium secondary battery employing the same. aMn3O4-bM(OH)2??Formula 1 wherein in Formula 1, 0<a?0.8, 0.2?b<1 and M is at least one metal selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron, (Fe), cobalt (Co), nickel (Ni), copper (Cu), aluminum (Al), magnesium (Mg), zirconium (Zr), and boron (B) aLi2MnO3-bLiyMO2??Formula 2 wherein in Formula 2, 0?a?0.6, 0.4?b?1 1.0?y?1.05, and M is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr, and B.

Abstract: Metal nanotubes are provided comprising a composition having formula (M1)NT: wherein M1=Pt, Pd, or Au; wherein the nanotubes have: a wall thickness of from 2 to 12 nm; an outer diameter of from 30 to 100 nm; and a length of from 5 to 30 ?m. Metal nanowires are also provided comprising a composition having formula (M2)NW: wherein M2=Ag or Cu; wherein when M2=Ag, the nanowires have a diameter of from 25 to 60 nm and a length of from 1 to 10 ?m; and when M2=Cu, the nanowires have a diameter of from 50 to 100 nm and a length of from 10 to 50 ?m. In other embodiments, fuel cells are also described having at least one anode; at least one cathode; an electrolyte membrane between the at least one anode and at least one cathode; and a catalyst comprising either of the above described metal nanotubes or nanowires.

Abstract: In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Abstract: A battery pack includes at least one battery cell, a protection circuit module electrically connected to the at least one battery cell, and a frame including the at least one battery cell and the protection circuit module. The battery pack also includes a label adjacent to the at least one battery cell, protection circuit module, and frame. The label includes a noise preventing portion in a direction different from a lengthwise direction of the frame.

Abstract: Provided are a battery module and a method for manufacturing the same. The battery module includes: a plurality of battery cells spaced apart from each other by a predetermined interval and stacked in parallel with each other; a plurality of heat exchange members integrally formed by connecting parts connecting between two partition walls neighboring to each other among partition walls each slid between the battery cells, respectively; and a filler applied onto the heat exchange members.

Abstract: A fuel cell system includes a fuel cell which generates electrical energy by reacting a hydrogen gas from a hydrogen gas supply source and an oxidizing agent gas from an oxidizing agent gas supply source, a hydrogen circulating pump which is provided in a hydrogen circulation path and transfers hydrogen gas of the hydrogen circulation path to the fuel cell, and control means. When the supply of hydrogen gas from the hydrogen gas supply source to the fuel cell is discontinued, the control means discontinues the supply of oxidizing agent gas from the oxidizing agent gas supply source to the fuel cell and activates the hydrogen circulating pump such that electrical energy generated in the fuel cell is supplied to the hydrogen circulating pump.

Abstract: The present invention relates to a process for the bonding of material for the production of three-dimensional objects by selective heating with electromagnetic energy which is either non-coherent and/or non-monochromatic and/or non-oriented, with a wavelength of from 100 nm to 1 mm.

Abstract: An anhydrous electrolyte for a magnesium battery. The anhydrous electrolyte includes a magnesium salt having the formula Mg(BH4)2. The electrolyte also includes a solvent, the magnesium salt dissociating in the solvent. Various solvents including aprotic solvents and molten salts such as ionic liquids may be utilized. The magnesium salt dissociates in the solvent to Mg electroactive species BH4? and Mg2+.

Abstract: Provided is a lithium metal compound oxide having a layered structure, which is very excellent as a positive electrode active material of a battery that is mounted on, particularly, an electric vehicle or a hybrid vehicle. Suggested is a lithium metal compound oxide having a layered structure which is expressed by general formula of Li1+xM1?xO2 (M represents metal elements including three elements of Mn, Co, and Ni). In the lithium metal compound oxide having a layered structure, D50 is more than 4 ?m and less than 20 ?m, a ratio of a primary particle area to a secondary particle area of secondary particles having a size corresponding to the D50 (“primary particle area/secondary particle area”) is 0.004 to 0.035, and the minimum value of powder crushing strength that is obtained by crushing a powder using a microcompression tester is more than 70 MPa.

Abstract: According to one embodiment, a solid electrolyte secondary battery includes a positive electrode containing an active material, a negative electrode containing an active material, and a solid electrolyte layer. The solid electrolyte layer includes a lithium-ion conductive sulfide containing at least one element selected from a group consisting of Al, Si, Fe, Ni, and Zr, the total content of the element in the lithium-ion conductive sulfide is 0.03% by mass or more and 0.3% by mass or less.

Abstract: A secondary battery has an electrode laminated body and a collector member. The laminated body is formed of a laminated electrode sheet. The collector member is bonded to a collector foil laminated portion of the electrode sheet not formed with an active material layer. The collector foil laminated portion and the collector member are bonded at overlapped portions by resistance welding using electrodes. When a pressure welding direction is a projection direction, an area ratio (Yd)/(Xd) is 1.2-4, in which Xd is a projection area of a surface of the electrode made contact with the collector foil laminated portion and Yd is a projection area of a surface of the electrode made contact with the collector member.

Abstract: A bipolar plate for an electrochemical cell contains two plate elements between which a flow field has a flow inlet and a flow outlet. The flow field has coolant flowing through it. Each plate element has a contact plane for making contact with the respective other plate element and a plurality of first embossments project from the contact plane and face away from the other plate element. One of the plate elements has second embossments. Both the first and the second embossments have an aperture to the contact plane of the plate element. Flow channels are formed by the apertures by having the embossments of the two plate elements offset against one another such that each embossment only partially overlaps one embossment of the other plate element. The second embossments are smaller than the first embossments such that the flow channels are restricted in the second embossments.

Abstract: Disclosed are precursor particles of a lithium composite transition metal oxide for lithium secondary batteries, wherein the precursor particles of a lithium composite transition metal oxide are composite transition metal hydroxide particles including at least two transition metals and having an average diameter of 1 ?m to 8 ?m, wherein the composite transition metal hydroxide particles exhibit monodisperse particle size distribution and have a coefficient of variation of 0.2 to 0.7, and a cathode active material including the same.

Abstract: The present invention provides a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a liquid electrolyte electrode and a solid electrolyte electrode are stacked on both sides of an ion conductive glass ceramic. That is, disclosed is a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a lithium metal negative electrode includes a liquid electrolyte and a porous air positive electrode comprising a carbon, a catalyst, a binder and a solid electrolyte are separately stacked on both sides of an impermeable ion conductive glass ceramic, and the liquid electrolyte is present only in the lithium metal negative electrode.

Abstract: A fuel cell device including a fuel cell stack with a flexible enclosure.

Abstract: A rechargeable battery including an electrode assembly, a case configured to receive the electrode assembly, a cap plate configured to be coupled to an opening of the case and comprising a fixing groove, and an insulation case between the cap plate and the electrode assembly and including a fixing protrusion configured to be inserted into the fixing groove.

Abstract: Provided is a pouch type case, which includes a pouch type body part including an inner space for accommodating an electrode assembly, and an injection part extending from the body part to guide electrolyte into the inner space. The injection part is corrugated in a zigzag shape.

Abstract: According to one embodiment, a solid electrolyte material is an oxide represented by ABO3, wherein an A-site includes Li and vacancies. A cubic root V1/3 of a unit cell volume is within a range of 386 pm?V1/3?397 pm. A peak top ?top of an absorption peak in an infrared absorption spectrum satisfies Expression (1) ?top (cm?1)=4.7×V1/3 (pm)?b ??(1), provided that 1220?b?1240.

Abstract: A rechargeable battery module includes a plurality of unit cells including rechargeable batteries and adjacently disposed, at least one bus bar connecting electrode terminals of adjacent unit cells of the plurality of unit cells, and a cover configured to cover the plurality of unit cells, the cover including a coupling part coupled with the at least one bus bar, and a signal detector electrically connected to the bus bar.