Abstract: This application provides a nonaqueous electrolytic solution, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolytic solution includes a nonaqueous solvent and a lithium salt. The nonaqueous solvent includes a carbonate solvent and a high-oxidation-potential solvent. The carbonate solvent is a mixture of a cyclic carbonate and a chain carbonate, and the high-oxidation-potential solvent is selected from one or more of compounds denoted by Formula I and Formula II. This application improves electrochemical performance of the lithium-ion battery under a high temperature and a high voltage as well as safety performance such as overcharge safety and hot-oven safety of the lithium-ion battery, and also ensures kinetic performance of the lithium-ion battery to some extent.

Abstract: Provided are a negative electrode that is for use in a non-aqueous electrolyte secondary battery, includes a porous metal body as a current collector, contains a skeleton-forming agent highly infiltrated in the current collector so that it is less likely to suffer from structural degradation and provides improved cycle durability; and a non-aqueous electrolyte secondary battery including such a negative electrode. The negative electrode for use in a non-aqueous electrolyte secondary battery includes a current collector including a porous metal body; a first negative electrode material disposed in pores of the porous metal body and including a conductive aid, a binder, and a negative electrode active material including a silicon-based material; and a second negative electrode material disposed in pores of the porous metal body and including a skeleton-forming agent including a silicate having a siloxane bond.

Abstract: A battery cell assembly, including a rolled cell formed from a first electrode and a second electrode rolled together about a longitudinal axis. The rolled cell includes a primary section in which the first electrode and the second electrode overlap in a radial direction from the longitudinal axis, and a first extension end extending from a first longitudinal end of the primary section and formed from a first edge section of the first electrode. The first edge section includes a first folded portion folded to contact an adjacent portion of the first edge section. The battery cell assembly further includes a first end cap coupled to the rolled cell and contacting the first folded portion.

Abstract: A pre-lithiated silicon-based anode includes a silicon-based anode, lithium disposed on a surface or in an interior of the silicon-based anode, and a protective coating on the surface of the silicon-based anode. The pre-lithiated silicon-based anode allows subsequent processing to be performed safely in the atmosphere.

Abstract: Disclosed is a modified carbonaceous material, which includes hexagonal carbon networks in a layered stacking structure and acidic functional groups bonded to the hexagonal carbon networks and mainly existing at edges of the layered carbonaceous structure. Accordingly, the close proximity of acid moiety at the edges can resemble the center of hydrolysis enzymes, resulting in enhancement of hydrolytic efficiency. Additionally, the acid-functionalized carbonaceous material can also be applied in the capture and storage of carbon dioxide due to its unexpectedly higher capacity for CO2 molecular.

Abstract: The invention features redox flow batteries and compound useful therein as negolytes or posolytes. The batteries and compounds are advantageous in terms of being useable in water solutions at neutral pH and have extremely high capacity retention. Suitable negolytes are diquaternized bipyridines, suitable posolytes are water-soluble ferrocene derivatives.

Abstract: Provided is a fluoride ion secondary battery having high charging and discharging efficiency at room temperature. The fluoride ion secondary battery includes a positive electrode material layer including Ag; a negative electrode material layer including at least one of CeF3 and PbF2; and a solid electrolyte layer including LaF3 and disposed between the positive electrode material layer and the negative electrode material layer. The fluoride ion secondary battery may further include a negative electrode current collector layer disposed on an outer side of the negative electrode material layer. The negative electrode current collector layer may include carbon when the negative electrode material layer includes CeF3 or may include a Pb foil when the negative electrode material layer includes PbF2.

Abstract: A conveying unit (1) for a fuel cell system (31) for conveying and/or recirculating a gaseous medium, in particular hydrogen, comprising a jet pump (4) driven by a driving jet of a pressurized gaseous medium, and comprising a metering valve (6) with a nozzle (12), wherein: the conveying unit (1) is designed as a combined valve jet pump assembly (2); the gaseous medium is fed to the jet pump (4) by means of the metering valve (6); the jet pump (4) has a main body (8); and the jet pump (4) is connected to an anode inlet (3) of a fuel cell (29).

Abstract: Exemplary embodiments of positive electrode active materials in the form of single particles, and a method of preparing each of them, are provided. The single particles of the exemplary embodiments include single particles of a nickel-based lithium composite metal oxide, having a plurality of crystal grains, each having a size of 180 nm to 300 nm, as analyzed by a Cu K? X-ray (X-r?). The single particles include a metal doped in the crystal lattice thereof. One embodiment includes a surface coating. The total content of the metal doped in the crystal lattice thereof and the metal of the metal oxide coated on the surface thereof is controlled in the range of 2500 ppm to 6000 ppm.

Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte, the electrolyte including a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1: in Chemical Formula 1, R1 is a cyano group, a substituted or unsubstituted C2 to C10 alkenyl group, or a substituted or unsubstituted C2 to C10 alkynyl group.

Abstract: An anode includes: (1) a current collector; and (2) an interfacial layer disposed over the current collector. The interfacial layer includes an ion-conductive organic network including anionic coordination units, organic linkers bonded through the anionic coordination units, and counterions dispersed in the ion-conductive organic network.

Abstract: A positive electrode includes at least a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is disposed on a surface of the positive electrode current collector. The positive electrode current collector includes an aluminum foil and an aluminum hydrated oxide film. The aluminum hydrated oxide film covers a surface of the aluminum foil. The aluminum hydrated oxide film has a thickness not smaller than 50 nm and not greater than 500 nm. The aluminum hydrated oxide film contains a plurality of types of aluminum hydrated oxides. The ratio of boehmite to the plurality of types of aluminum hydrated oxides is not lower than 20 mol % and not higher than 80 mol %.

Abstract: To provide an electrocatalyst for fuel cells, which is configured to ensure both the initial performance and durability of fuel cells. An electrocatalyst for fuel cells, wherein the electrocatalyst comprises a carbon support including a mesopore and a catalyst alloy supported on the carbon support, and the catalyst alloy is a catalyst alloy of platinum and a transition metal; wherein the mesopore includes at least one throat; wherein an average effective diameter of the at least one throat is 1.8 nm or more and less than 3.2 nm; and wherein a transition metal ratio of the catalyst alloy supported on a deeper-side region than the at least one throat, is lower than the transition metal ratio of the catalyst alloy supported on a nearer-side region than the at least one throat.

Abstract: The present invention relates to a method for producing a precursor material (10) for an electrochemical cell. The method comprises the steps of adding a matrix material (18) to a fluidized bed (40), and adding a carrier medium (48) and a de-agglomerated carbon nanotube material (22) to the fluidized bed (40), so that the carbon nanotube material (22) and the carrier medium (48) is applied to the matrix material (18) and the latter is granulated therewith, wherein the carbon nanotube material (22) has been suspended and de-agglomerated prior to addition to the carrier medium (48), and/or the carbon nanotube material (22) present in de-agglomerated form in the fluidized bed (40) dissolving with the carrier medium (48) in the fluidized bed (40).

Abstract: A bipolar electrode for a lithium battery, the bipolar electrode comprising: (a) a current collector comprising a conductive material foil having two opposing primary surfaces, wherein one or both of the primary surfaces is optionally coated with a layer of graphene or expanded graphite material having a thickness from 5 nm to 50 ?m; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two primary surfaces, wherein the positive electrode layer comprises a mixture of particles of a cathode active material and a quasi-solid or solid-state electrolyte and the electrolyte comprises a polymer, which is a polymerization or crosslinking product of a reactive additive, wherein the reactive additive comprises (i) a first liquid solvent that is polymerizable, (ii) an initiator or curing agent, and (iii) a lithium salt. Also provided is a bipolar battery comprising a plurality of bipolar electrodes connected in series.

Abstract: The present invention relates to a polymer electrolyte and a method for manufacturing same. More specifically, a polymer electrolyte with improved ion conductivity can be produced by adding boron nitride to a solid electrolyte comprising polysiloxane.

Abstract: There is provided a method for collecting and reusing an active material from positive electrode scrap. The method for reusing a positive electrode active material of the present disclosure includes (a) thermally treating positive electrode scrap comprising an active material layer on a current collector in air for thermal decomposition of a binder and a conductive material in the active material layer, to separate the current collector from the active material layer, and collecting an active material in the active material layer, (b-1) washing the active material collected from the step (a) with a lithium compound solution which is basic in an aqueous solution, (b-2) mixing the active material washed from the step (b-1) with a lithium precursor aqueous solution and spray drying, and (c) annealing the active material spray dried from the step (b-2) to obtain a reusable active material.

Abstract: A clamping member and a battery accommodating device are provided. The battery accommodating device includes a body and a clamping member pivotally connected to the body. The clamping member has two arm parts, two protruding parts respectively extending from one side of the two arm parts, and an elastic structure connected to the two arm parts at two ends. When the battery is placed in an accommodating slot of the body, the elastic structure is pressed by the battery, and one end of the battery is clamped between the two protruding parts and the elastic structure. When the two protruding parts are pushed by an external force, the clamping member rotates relative to the body, and the elastic structure pushes up the battery, so as to release the clamped end of the battery.

Abstract: Each cell forming a battery stack has a discharge valve configured to discharge gas in the inside to the outside when an internal pressure increases. A case houses the battery stack. A plate member is provided between each discharge valve and an upper case. The plate member is arranged to overlap with each discharge valve when the battery stack and the plate member are planarly viewed from above.

Abstract: A solid electrolyte material according to the present disclosure is represented by the chemical formula Li6-4aMaX6. M denotes at least one element selected from the group consisting of Zr, Hf, and Ti, X denotes at least one halogen element, and a is greater than 0 and less than 1.5.