Abstract: A method forming a composite electrolyte by preparing a suspension. The suspension includes a solvent (comprising 90 wt % to 95 wt % of a total weight of liquids); a non-solvent (comprising 5 wt % to 50 wt % of a total weight of liquids); a binder (comprising 20 wt % to 50 wt % of a total weight of the composite electrolyte) and selected from the group consisting of PVDF, PVDF-HFP, PFTE, PEO, PMMA, PAN, CNC, SBR, and combinations thereof; and a ceramic filler (comprising 50 wt % to 80 wt % of the total weight of the composite electrolyte) having a cross-section diameter ranging from 50 nm to 150 nm and being selected from the group consisting of Al2O3, SiO2, TiO2, MgO, Li2O, LiAlO2, BaTiO3, LaGP, LATP, LLTO, and combinations thereof. The suspension is cast or printed and dried.

Abstract: An inlet duct for a vehicle battery system includes an inlet part having an inlet hole open toward a vehicle interior, outlet parts divided from the inlet part and having outlet holes so as to supply air introduced to the inlet hole to the battery system via two separated paths, and a grill provided in the inlet part by having multiple ribs forming a grid to cover the inlet hole.

Abstract: The present invention relates to a three-dimensional structure electrode, a method for manufacturing same, and an electrochemical element including the electrode. The present invention is characterized by comprising: (a) an upper conductive layer and a lower conductive layer which have a structure constituting an assembly within which a conductive material and a porous nonwoven fabric including a plurality of polymeric fibers are three-dimensionally connected in an irregular and continuous manner, thereby forming a mutually connected porous structure; and (b) an active material layer forming the same assembly structure as the conductive layers and forming a three-dimensionally filled structure in which electrode active material particles are uniformly filled inside the mutually connected porous structure formed in the assembly structure, wherein the active material layer is formed between the upper conductive layer and the lower conductive layer.

Abstract: A battery includes a battery cell having a first wall provided with a pressure relief mechanism configured to be actuated when internal pressure or temperature of the battery cell reaches a threshold, a fire-fighting pipeline configured to accommodate a fire-fighting medium and discharge the fire-fighting medium when the pressure relief mechanism is actuated, a first fixing member disposed on a side of the fire-fighting pipeline close to the first wall and provided with first and second limiting parts, and a second fixing member disposed on a side of the fire-fighting pipeline away from the first wall and provided with third and fourth limiting parts. The third and first limiting parts match each other to fix the fire-fighting pipeline between the first and second fixing members. The fourth and second limiting parts match each other to limit the second fixing member in an extending direction of the fire-fighting pipeline.

Abstract: The present invention relates to a composition for a gel polymer electrolyte, which includes a lithium salt, a non-aqueous organic solvent, a polymerization initiator, and an oligomer containing a polycarbonate-based repeating unit, a gel polymer electrolyte in which mechanical strength and ion transfer capability are improved by polymerization of the composition for a gel polymer electrolyte, and a lithium secondary battery in which external impact and stability during high-temperature storage are improved by including the gel polymer electrolyte.

Abstract: The present application relates to a method and an apparatus for manufacturing an electrode assembly of a secondary battery. Embodiments of the present application propose a method for manufacturing an electrode assembly of a secondary battery, the method comprising joining a positive electrode plate and a first separator to form a positive electrode composite plate body; joining a negative electrode plate and a second separator to form a negative electrode composite plate body; winding the positive electrode composite plate body and the negative electrode composite plate body together to form an electrode assembly, wherein the positive electrode plate and the negative electrode plate are disposed to isolate from each other by the first separator and the second separator.

Abstract: The present invention provides a lithium ion secondary battery which is provided with: a nonaqueous electrolyte solution; and a positive electrode and a negative electrode, each of which is capable of absorbing and desorbing lithium. This lithium ion secondary battery is configured such that the nonaqueous electrolyte solution contains (A) an electrolyte, (B) a nonaqueous organic solvent and (C) a compound that is obtained by substituting at least one hydrogen atom, which is bonded to a carbon atom in an aromatic ring of a compound that has at least one aromatic ring and no amino group, by a group that is represented by formula (1); and this lithium ion secondary battery is charged at a voltage within the range of 4.35-5 V for use.

Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode. At least one of the electrodes can include an electrode film prepared by a dry process. The electrode film and/or the electrode can comprise a prelithiating material. Processes and apparatuses used for fabricating the electrode and/or electrode film are also described.

Abstract: A cover assembly of a secondary battery and a secondary battery. The cover assembly includes: a cover plate including a gas vent; a gas exhaust valve configured to seal the gas vent and deform in response to an increase in temperature to get out of a state of sealing the gas vent; and a protective part at least partially covering the gas vent and having a gas permeability coefficient smaller than a gas permeability coefficient of the gas exhaust valve.

Abstract: A pressing jig for removing gas generated in an activation process of a battery cell includes a plate-shaped lower plate on which the battery cell that has undergone the activation process is placed and fixed, and an upper plate that presses the battery cell placed on the lower plate from above. At least one of the upper plate or the lower plate has a structure in which n (n?3) separated sub-plates are assembled to form a single plate, and the sub-plates independently press the battery cell. The pressing jig can suppress trapping of internal gas by sequentially pressing the battery cell.

Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.

Abstract: A terminal component includes a first metal and a second metal overlapped on the first metal, the first metal having a part to be connected to an internal terminal, and the second metal having a part to be exposed to the outside of a battery case. At an interface where the first metal and the second metal are overlapped, one of the first metal and the second metal has a protrusion having a flat top portion. The other metal is joined to the top portion. A cross section of the protrusion orthogonal to a projection direction of the protrusion is set such that fusing occurs when a current equal to or higher than a predetermined current value flows between the first metal and the second metal.

Abstract: The present invention relates to a stack-folding type of electrode assembly and a lithium metal battery including the same. In detail, according to an exemplary embodiment of the present invention, the lithium metal battery is realized as a stack-folding type, and the insulation tape is respectively attached to the upper side and the lower side of the folding separation film, thereby solving the drawback of exposure of the lithium dendrite and the dead lithium produced on the surface of the negative electrode during the charging and discharging process.

Abstract: An energy storage device includes an outer case including a lid plate on which an external terminal is mounted, a plate including a tab and housed in the outer case, a conductive shaft portion penetrating the lid plate and including one end thereof connected to the external terminal, and a conductive plate portion housed in the outer case, and including a first surface to which an other end of the conductive shaft portion is connected and a second surface to which the tab is connected. A size of the conductive plate portion is set larger than a size of the external terminal in a planar direction of the lid plate.

Abstract: The present application provides a temperature control component, which includes a first side plate, a second side plate and a first buffer plate. A cavity is formed by the second side plate and the first side plate; the first buffer plate is disposed between the second side plate and the first side plate to divide the cavity into multiple channels, and at least part of the first buffer plate extends obliquely from the first side plate towards the second side plate. The present application also provides a battery pack, which includes the temperature control component described above.

Abstract: An electrode material for a lithium ion secondary battery and method of forming the same, the electrode material including composite particles, each composite particle including: a primary particle including an electrochemically active material; and an envelope disposed on the surface of the primary particle. The envelope includes turbostratic carbon having a Raman spectrum having: a D band having a peak intensity (ID) at wave number between 1330 cm-1 and 1360 cm-1; a G band having a peak intensity (IG) at wave number between 1530 cm-1 and 1580 cm-1; and a 2D band having a peak intensity (I2D) at wave number between 2650 cm-1 and 2750 cm-1. In one embodiment, a ratio of ID/IG ranges from greater than zero to about 1.1, and a ratio of I2D/IG ranges from about 0.4 to about 2.

Abstract: The present application relates to a secondary battery and manufacturing method thereof, a battery module and an apparatus. The secondary battery includes an electrode assembly including a main body portion and a tab extending out from the main body portion; a current collecting member including a guiding section, which extends in a direction perpendicular to a length direction of the electrode assembly; a transition connecting piece, being separately provided from the current collecting member and including a current collecting portion and a fixing portion, the current collecting portion being adapted to connect with the tab to form a first connection region, the fixing portion being adapted to connect with the guiding section to form a second connection region, and respective projections of the first connection region and the second connection region on a plane perpendicular to the length direction do not overlap.

Abstract: A linkage control system and a linkage control method for battery clusters are provided in the disclosure. In the system, when thermal runaway occurs in a certain battery cluster, in the condition that an inhibitor in an isolation-and-suppression device in the battery cluster is in a normal state, the control host can suppress thermal runaway of the battery cluster by the inhibitor in the isolation-and-suppression device. In the condition that the inhibitor in the isolation-and-suppression device is in an abnormal state, the control host can determine, from adjacent battery clusters, a battery cluster capable of supporting an inhibitor, to solve thermal runaway by the inhibitor in the isolation-and-suppression device in the battery cluster.

Abstract: An energy storage element includes a housing enclosing an interior space, which housing is formed of a first metal housing part and a second metal housing part and has a substantially circular upper side and a substantially circular lower side spaced from one another and parallel to one another, and an annular housing side that connects the upper side and the lower side; a winding arranged in the interior, which winding includes a strip-shaped positive and a strip-shaped negative electrode and a strip-shaped separator arranged between the electrodes that are wound in a spiral around a winding axis; wherein the winding has a first end face and a second end face and an annularly circumferential winding outer side, the first and second end faces face in the direction of the circular and mutually parallel upper side and lower side such that the winding axis is oriented perpendicular or at least substantially perpendicular to the upper side and the lower side, and the winding has an axial cavity through which the

Abstract: Provided is a positive electrode for a secondary battery in which carbon nanotubes are used, of which an initial resistance is small, and that suppresses an increase in resistance when charging and discharging are repeated. The positive electrode for a secondary battery disclosed herein includes a positive-electrode current collector and a positive-electrode active material layer provided on the positive-electrode current collector. The positive-electrode active material layer contains a positive-electrode active material and carbon nanotubes, and substantially does not contain a resin binder. The positive-electrode active material layer includes a layer-like region that is in contact with the positive-electrode current collector, and a region other than the layer-like region. Both of the layer-like region and the region other than the layer-like region contain carbon nanotubes.