Abstract: An electrode includes a carbon fiber, wherein the carbon fiber has a first region including a surface of the carbon fiber, when a cross section of the carbon fiber is analyzed by electron energy loss spectroscopy, the first region has peaks both around 285 eV and around 530 eV, and the first region is provided up to 10% of a diameter of the carbon fiber from the surface toward a center.

Abstract: A method of controlling the ionic conductivity of a polymer member, including providing a plurality of particles of bi-doped garnet, dispersing the plurality of particles of bi-doped garnet in a PEO matrix to yield a polymer member, nucleating spherulites at bi-doped garnet particle sites, and growing spherulites to a critical density to provide ionic conductivity pathways throughout the polymer member.

Abstract: A power storage system capable of appropriately increasing a temperature of a power storage device is provided. A power storage system (10) includes a battery (31) and a plurality of AC application units (33). The battery (31) includes a string (31b) which is formed by a plurality of cells (31a) connected in series to each other. The battery (31) includes a plurality of modules (35) which are formed by dividing the string (31b) into a plurality of substrings in series. The plurality of AC application units (33) respectively apply alternating currents I having phases set to attenuate a voltage fluctuation at both ends (the positive electrode terminal (BP) and the negative electrode terminal (BN)) of the battery (31) to each of the plurality of modules (35).

Abstract: A rechargeable battery pack having at least one pouch cell, wherein the rechargeable battery pack has at least one electrically conductive filament which surrounds the pouch cell at least in sections in such a way that expansion of the pouch cell causes severing of the filament.

Abstract: A battery device has at least one battery module including a battery module housing, in which battery module housing battery cells are provided. The battery cells each have a cell envelope with a cell vent. The battery module housing has a battery-module housing wall with battery-module housing vents. The battery-module housing vents are respectively assigned a first closure arrangement, which first closure arrangement closes the assigned battery-module housing vent in a first state (Z1) and opens it in a second state (Z2), in order to allow at least partial venting of gas from the battery module housing through the assigned battery-module housing vent in the second state (Z2) of the first closure arrangement. At least two of the cell vents respectively lie opposite an assigned battery-module housing vent, at least in certain regions.

Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.

Abstract: Bilayer structured hydrated Ca—V oxide is disclosed as a high capacity cathode for rechargeable aqueous Zn-ion batteries, as well as methods for forming same to provide an improved cathode with significant improvements over existing cathode structures and materials.

Abstract: A laminated electrode body manufacturing device is provided with: a negative electrode cutting drum for cutting a negative electrode veneer to a first width to create a negative electrode plate, a negative electrode heating drum; a positive electrode cutting drum for cutting a positive electrode veneer to a second width to create a positive electrode plate, a positive electrode heating drum; and a bonding drum for arranging the negative electrode plate on a first separator veneer, arranging a second separator veneer thereon, arranging the positive electrode plate thereon, and bonding the same. The drums each include a plurality of holding heads arranged in the circumferential direction of the drum, wherein the plurality of holding heads hold a rectangular electrode body and rotate about a common central axis, and the speed of movement of each holding head in the circumferential direction can be changed relative to the adjacent holding head.

Abstract: The present application relates to a battery cell and a manufacturing method and device thereof, a battery, and a power consumption apparatus, belonging to the field of battery manufacturing technologies. The battery cell includes: a shell with a first wall; an electrode assembly; and a first current collecting member, where the first wall has a first surface facing the first current collecting member, the first current collecting member has a second surface facing the first wall, one of the first surface and the second surface is provided with a protrusion and the other abuts against the protrusion to form a gap between the first wall and the first current collecting member; and the first current collecting member is provided with a first hole and a second hole, and the first hole is configured to be in communication with the second hole through the gap.

Abstract: A traction battery assembly includes, among other things, a plurality of battery cells disposed along an axis, an endplate at an axial end of the plurality of battery cells, and a corrugated area of the endplate. The corrugated area has a plurality of corrugations that flatten to accommodate expansion of the plurality of battery cells along the axis.

Abstract: The invention relates to an electrolyte arrangement for a cell having at least one anode (1) and at least one cathode (3) comprising at least three superposed layers (2.1, 2.2, 2.3), wherein the middle layer (2.2) comprises a porous electrically nonconductive structure, and wherein a layer of a polymer-based electrolyte (2.1, 2.3) is arranged on both opposite sides of the porous electrically nonconductive structure, wherein at least one of the superposed layers (2.1, 2.2, 2.3) contains a ceramic material, wherein the ceramic material of the middle layer (2.2) is selected from metal ion-conductive ceramic material, a ceramic material which does not conduct metal ions, and/or mixtures thereof, and the ceramic material of the polymer-based electrolyte layer(s) (2.1, 2.3) is a metal ion-conductive ceramic material.

Abstract: Provided is a method for fabricating a magnesium-containing electrode by a plating method. In the fabrication process disclosure, a plating solution used in the plating method includes a solvent containing an ether. The solvent includes a first magnesium salt having a disilazide structure represented by a formula (R3Si)2N and a second magnesium salt that does not have a disilazide structure. In the formula, R represents a hydrocarbon group having 1 or more and 10 or less carbon atoms.

Abstract: A battery may include a first electrode and a second electrode having an opposite polarity as the first electrode. The battery may further include a first current collector electrically coupled with the first electrode and a second current collector electrically coupled with the second electrode. A safe layer may be interposed between the first electrode and first current collector. The safe layer may be configured to respond to being exposed to a first temperature by interrupting a current flow in the battery cell. The safe layer may interrupt the current flow in the battery cell by forming a non-conductive gap between the first electrode and the first current collector. The safe layer may include a first polymer instead of a second polymer such that the safe layer interrupts the current flow in response to the first temperature and not a second temperature.

Abstract: A positive electrode material contains at least one positive electrode active material, a solid electrolyte, and a coating material. The solid electrolyte is represented by formula (1), Li?M?X???(1) where ?, ?, and ? are each independently a value greater than 0, M includes at least one element selected from the group consisting of non-Li metals and metalloids, and X includes at least one selected from the group consisting of F, Cl, Br, and I. The coating material covers the surface of the positive electrode active material and contains lithium carbonate.

Abstract: Provided is an aqueous redox flow battery comprising a positive electrode, a negative electrode, a posolyte chamber containing a posolyte in a solvent, a negolyte chamber containing a polysulfide based negolyte and a soluble organic catalyst in a solvent, and a separator disposed between the posolyte chamber and the negolyte chamber, wherein the soluble organic catalyst has a potential lower than the polysulfide based negolyte.

Abstract: A positive electrode active material is provided, including a lithium transition metal oxide containing nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium transition metal oxide has 60 mol % or more nickel (Ni) with respect the total number of moles of transition metal except lithium, and is doped with at least any one doping element selected from the group consisting of B, Zr, Mg, Ti, Sr, W, and Al. The positive electrode active material has an average particle diameter (D50) of 4 ?m to 10 ?m after rolling at a rolling density of 3.0 g/cm3 to 3.3 g/cm3 and has the form of a single particle. A method of preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a lithium secondary battery are also provided.

Abstract: Battery-monitoring wireless temperature sensors (WTSs) are positioned so that they can obtain temperature data related to batteries that are being stored in a storage area. Reference WTSs are positioned throughout the storage area to provide representative ambient temperature data. The battery-monitoring WTSs and the reference WTSs wirelessly transmit temperature measurements to a temperature processing system. The temperature processing system processes the battery-monitoring temperature measurements based on the reference temperature measurements and previous battery-monitoring temperature measurements. In some embodiments, the temperature processing system compares a battery-monitoring temperature measurement received from a particular battery-monitoring WTS to (i) at least one reference temperature measurement, and (ii) any previous battery-monitoring temperature measurements from that same WTS.

Abstract: The present technology relates to a flame retardant, a cellulose fiber separator containing the flame retardant, a component comprising the separator and an electrolyte, and electrochemical cells and batteries comprising same as well as the uses thereof.

Abstract: The present application provides a battery box, including a lower box body. The lower box body includes: a first plate including a bottom wall and a peripheral wall that is connected to the peripheral edge of the bottom wall and extending upwards, where the bottom wall and the peripheral wall together form an accommodating space that opens upwards along a height direction; and a second plate that is fastened under the bottom wall and that forms, together with the bottom wall, an inlet flow path, an outlet flow path, and a main flow path communicating with both the inlet flow path and the outlet flow path, where the main flow path includes a first main flow path, a second main flow path, and a plurality of parallel branch flow paths that communicate with both the first main flow path and the second main flow path.

Abstract: A battery system includes a fluid tube that cools busbars of a battery module having one or more cells. The fluid tube is constructed of an electrically insulative/thermally conductive material. Thus, the fluid tube can be affixed directly onto the surface of the busbar. The fluid tube can be used with chilled water to reduce the temperature of the busbars and hot water to increase the temperature of the busbars. The fluid tube can be affixed to the busbars using a flexible joint material that allows for the expansion and contraction of the busbars. The flexible joint material an electrically insulative/thermally conductive material. The joint material can include a resin and conductive powder.