Abstract: The present invention is directed to a composition comprising a thermoplastic polymer and a thermally conductive filler package comprising thermally conductive, electrically insulative filler particles having a thermal conductivity of at least 5 W/m·K measured according to ASTM D7984) and a volume resistivity of at least 10 ?·m (measured according to ASTM D257) and being present in an amount of at least 50% by volume based on total volume of the filler package. The present invention also is directed to coatings comprising a thermal conductivity of at least 0.5 W/m·K (measured according to ASTM D7984) and to substrates, at least a portion of which is coated with such a coating.

Abstract: A battery pack of the present disclosure includes a lower pack frame on which a plurality of battery modules are mounted; and an upper pack frame located on an upper part of the plurality of battery modules, wherein the lower pack frame includes a bottom part in contact with a lower surface of the plurality of battery modules and a frame part in contact with at least one side surface of at least one of the plurality of battery modules, wherein the frame part comprises a side surface frame extending from an edge of the bottom part toward the upper part, and an inner frame located inside the side surface frame, wherein the inner frame includes at least one venting hole that penetrates an outer surface of the inner frame, and wherein the inner frame serves as a path through which a gas generated in the at least one of the plurality of battery modules moves.

Abstract: A method of making a free-standing nanoporous Zn is provided. The method includes compacting a predetermined amount of Zn compound precursor into a form of an anode; controlling a thickness of the Zn compound precursor to obtain desirable porosity; and reducing the Zn compound precursor in an electrochemical cell having an electrolyte at a predetermined volage against a reference electrode to obtain a nanoporous Zn anode. The nanoporous Zn includes continuous metal ligaments and pores each having a uniform width of around a few hundred nanometers. The nanoporous Zn may serve as an anode in a rechargeable Zn battery having the nanoporous Zn anode coupled to a conductive substrate, a physical block, an electrolyte, a reference electrode, and a cathode electrode, to deliver a high areal capacity and a long cycle life.

Abstract: The present disclosure related to a non-aqueous electrolyte solution for a lithium secondary battery, the non-aqueous electrolyte solution comprising: a lithium salt; an organic solvent; and a first additive, wherein the first additive is one or two of compounds represented by following chemical formula 1a and chemical formula 1b:

Abstract: A film having a resin layer containing polyethylene, polypropylene, and a compatibilizer for a terminal for covering the outer peripheral surface of part of a metal terminal that constitutes a power storage device. The compatibilizer having a region which is compatible with the polyethylene and a region which is compatible with polypropylene.

Abstract: Provided is a rechargeable metal halide battery with an anode; an electrolyte including (i) an oxidizing gas, (ii) a metal halide, and (iii) a heterocyclic compound solvent; and a current collector contacting the active cathode material. As the metal halide of the electrolyte acts as an active cathode material that can receive, store, and release metal ions during charging and discharging of the battery, the battery does not require a dedicated cathode. The lack of a dedicated cathode results in a rechargeable battery with high power density that is lightweight and inexpensive to make.

Abstract: An all-solid-state battery includes a laminated body in which a positive electrode layer, a sulfide-based solid electrolyte layer, and a negative electrode layer are laminated; an absorber configured to absorb hydrogen sulfide gas; and an outer package configured to form a housing space in which the laminated body and the absorber are housed. The outer package includes a sealing portion configured to hermetically seal the housing space. The sealing portion includes a fragile portion whose sealing strength is weaker than that of the other portion of the sealing portion. In a case where the hydrogen sulfide gas is generated in the housing space, sealing of the fragile portion is released earlier than the other portion to form a discharge port through which the hydrogen sulfide gas is discharged to an outside of the housing space.

Abstract: A secondary battery includes an outer package member, a battery device, an external terminal, and a coupling wiring line. The battery device is contained inside the outer package member, and includes a first electrode and a second electrode. The external terminal is attached to the outer package member and insulated from the outer package member. The coupling wiring line is coupled to each of the first electrode and the external terminal. A portion of the coupling wiring line is insulated from each of the outer package member and the second electrode, and is sandwiched by the outer package member and the battery device.

Abstract: A composite negative electrode material, a method for preparing the composite negative electrode material, a negative electrode plate of a lithium ion secondary battery containing the composite negative electrode material, and a lithium ion secondary battery containing a negative electrode active material of the lithium ion secondary battery, where the composite negative electrode material includes a carbon core and a carbon coating layer, where the carbon coating layer is a carbon layer that coats a surface of the carbon core, and both the carbon core and the carbon coating layer include a doping element, where the doping element is at least one of element N, P, B, S, O, F, Cl, or H.

Abstract: A cell management module for a power supply module including a plurality of power cells includes at least one cell-sensing circuit and a current measurement circuit connected to the at least one cell-sensing circuit. The at least one cell-sensing circuit includes a transformer having a first winding and a second winding inductively coupled to the first winding. A first sub-circuit of the cell-sensing circuit includes the first winding of the transformer and is operable to selectively pulse a first signal through the first winding. A second sub-circuit of the cell-sensing circuit includes the second winding of the transformer and one of the power cells of the power supply module. The current measurement circuit is connected to the first sub-circuit of the at least one cell-sensing circuit and infers a voltage of the power cell based on a measured current of the first signal.

Abstract: An apparatus for manufacturing a unit cell including a first and second roller is provided. The first roller is positioned on a first side of the first and second separators. The second roller is positioned on a second side of the first and second separators opposite the first side wherein the second roller is aligned with the first roller along an axis and defines an oval shape having a long axis and a short axis. The second roller is configured to contact the second separator and press the first and second separators against the first roller at portions of the first and second separators which are between adjacent electrodes. One of the lower roller or the upper roller is heated so as to thermally fuse the separators together.

Abstract: A pre-formed battery cell thermal barrier for a battery module includes a plurality of conductively coupled electrochemical cells and a pre-formed thermal barrier. The battery module can further include a cell holder configured to receive the plurality of conductively coupled electrochemical cells and the pre-formed thermal barrier. The pre-formed thermal barrier includes a cured potting material insertable into a cell-to-cell space in the battery module. The pre-formed thermal barrier includes one or more locking features configured to physically interlock with one or more corresponding locking features of the cell holder.

Abstract: A battery cell, a battery module comprising the battery cell, and a method for manufacturing the battery cell are provided. The battery cell includes a cell case having an accommodation space; an electrode assembly comprising a plurality of electrode plates and separators alternately stacked, and accommodated in the accommodation space; an electrode tab extending outward from each of the electrode plates; a gel electrolyte disposed in the accommodation space and surrounding the electrode tab formed at one side of the electrode assembly; and a liquid electrolyte disposed in the accommodation space and surrounding the other side of the electrode assembly, at which the electrode tab is not formed.

Abstract: A separator for a lithium secondary battery, a method for manufacturing the same, and a secondary battery including the same. The separator includes a porous coating layer including a top layer, an intermediate layer, and a bottom layer. An amount of a particle-type binder polymer present in the top layer is larger than an amount of the particle-type binder polymer present in the bottom layer. The porous coating layer also includes a dispersant having a carboxyl group and a glycol group.

Abstract: A positive electrode active material includes at least one secondary particle including an agglomerate of primary macro particles. The average particle size of the primary macro particle is 2 ?m or more. A ratio of the average particle size of the primary macro particle to an average crystal size of the primary macro particle is 8 or more. An average particle size of the secondary particle is 3 to 10 ?m. The secondary particle includes a nickel-based lithium transition metal oxide. The primary macro particle does not crack in a rolling process under 9 tons. A method for preparing the positive electrode active material includes mixing a nickel-based transition metal oxide precursor having a tap density of 2.0 g/cc or less and a lithium precursor and performing primary sintering to form a primary sintered product and performing secondary sintering on the primary sintered product.

Abstract: A battery management system includes a battery, monitoring devices and a controller. The monitoring devices are arranged in a housing accommodating the battery. The monitoring devices monitor the battery and acquire battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring devices and executes a predetermined process that controls voltage of the battery based on the battery monitoring information. The controller executes a wireless communication process with each of the monitoring devices individually. The wireless communication process includes a connection process, and a periodic communication process in which each of the monitoring devices periodically transmits the battery monitoring information to the controller after completion of the connection process.

Abstract: This generally relates to one or more safety mechanisms of a rechargeable battery for light electric vehicles. The rechargeable battery may include a housing containing a battery management system and at least one battery cell, and a communication system communicatively coupled to the battery management system, where the communication system wirelessly communicates information received from the battery management system to a device external to the rechargeable battery. The rechargeable battery may include a housing formed of a first clamshell member and a second clamshell member. The rechargeable battery may include a first protrusion portion extending from an interior surface of the first clamshell member and a second protrusion portion extending from the interior surface of the second clamshell member toward the first protrusion portion such that the first and second protrusion portions physically contact one another when a force is applied to an external surface of the housing.

Abstract: A battery includes: a positive electrode including a positive electrode substrate having a first surface and a second surface, a positive active material applied to the first surface of the positive electrode substrate, and a positive electrode tab attached to the first surface of the positive electrode substrate; a negative electrode including a negative electrode substrate having a first surface and a second surface, a negative active material applied to the first surface of the negative electrode substrate, and a negative electrode tab attached to the first surface of the negative electrode substrate; and a separator provided between the positive electrode and the negative electrode, wherein the first surface of the negative electrode substrate includes a first region to which the negative active material is not applied and which faces the positive electrode tab, the first surface of the negative electrode substrate includes a second region to which the negative active material is applied and which is adja

Abstract: A battery monitoring apparatus includes a first air quality sensor to generate a first detection signal indicating a concentration of a first material in an internal space of a battery assembly in which at least one battery cell is positioned, a second air quality sensor to generate a second detection signal indicating a concentration of a second material in the internal space, and a controller to execute a first monitoring mode for collecting the first detection signal in first time series in response to an operation start command. The controller executes a second monitoring mode for collecting the second detection signal in second time series in response to the concentration of the first material indicated by the first detection signal exceeding a first threshold during the execution of the first monitoring mode.

Abstract: A method for producing a cement material comprises steps of: reacting sulfur dioxide and water to form a first acid, the first acid comprising at least one sulfur-containing anion; reacting the first acid and a first cement precursor to form a second cement precursor; wherein the second cement precursor comprises the at least one sulfur-containing anion; and converting the second cement precursor to the cement material.