Abstract: An underbody for electric vehicles can include a receiving portion depressed upwards by a predetermined depth. The receiving portion can be configured to receive a battery pack. A first water tank can be mounted in an upper part of the receiving portion. The first water tank can include an upper body, a lower body provided with a through-hole having a predetermined shape, and a sealing member provided in the through-hole and in direct contact with the lower body.

Abstract: Disclosed is a battery module, which includes cylindrical battery cells erect such that top caps thereof face upward, and a bus bar unit connected to the cylindrical battery cells in series and in parallel. The cylindrical battery cells include a first bank cell group and a second bank cell group arranged in a first direction parallel to the first bank cell group. The bus bar unit includes a first terminal bus bar disposed on the first bank cell group and electrically connected to a positive electrode of each of the first cylindrical battery cells, a second terminal bus bar disposed on the second bank cell group and electrically connected to a negative electrode of each of the second cylindrical battery cells, and a fishbone bus bar electrically connected to a negative electrode of the first cylindrical battery cells and a positive electrode of the second cylindrical battery cells.

Abstract: A battery pack includes: battery cells each including first and second end portions that are opposite each other in a length direction; a case providing an accommodation space in which each battery cell and a cooling fluid for cooling the battery cell are located, the case including a first cover covering the first end portion of the battery cell, the first cover including a first terminal hole through which the first end portion of the battery cell is partially exposed; and first and second sealing members adjacent to the first portion of the battery cell, the first and second sealing members surrounding the first terminal hole and configured to prevent cooling fluid leaving the accommodation space through the first terminal hole, where an end of an insulative layer is between the first terminal hole and the second sealing member.

Abstract: A battery thermal runaway detection sensor system for use within a battery enclosure housing one or more batteries. The system has at least one gas sensor for detecting a venting condition of a battery cell of hydrogen, carbon monoxide or carbon dioxide, and providing a sensed output in real time. A microcontroller determines power management and signal conditioned output on the concentration of specific battery venting gases based on the sensed output from said at least one gas sensor.

Abstract: A battery pack assembly includes a cell stack having a plurality of battery cells distributed along an axis and a plurality of thermal energy transfer assemblies distributed along the axis. Each thermal energy transfer assembly is disposed axially between a first battery cell and a second battery cell. Each thermal energy transfer assembly provides a channel configured to communicate a flow of air between the first battery cell and the second battery cell. A coolant plate assembly is adjacent the cell stack. The coolant plate assembly includes at least one coolant path configured to communicate a liquid coolant.

Abstract: An apparatus comprises: a clamshell configured for holding an electrochemical cell having first and second terminals, the clamshell comprising at least first and second portions hinged to each other; first and second contacts positioned for contacting the first and second terminals, respectively; and a thermoelectric device mounted to the clamshell for controlling a temperature of the electrochemical cell.

Abstract: An electrode tab guide apparatus configured to press and collect a plurality of electrode tabs protruding from an electrode assembly when the electrode tabs are welded by a welding part includes a first tab guide and a second tab guide configured to move toward the electrode tabs from above and below the electrode tabs, respectively, and press and collect the electrode tabs, and a mover configured to move the first tab guide and the second tab guide. The mover includes a vertical mover configured to vertically move the first tab guide and the second tab guide, and a horizontal mover configured to horizontally move at least one of the first tab guide or the second tab guide.

Abstract: Disclosed are a cell contacting system (CCS), a battery module structure and a battery. The CCS is arranged at the tops of multiple cells, and a gap is formed between each two adjacent cells. The CCS includes a fixing frame and a bus bar. The fixing frame is arranged at the tops of the multiple cells, and is provided with multiple positioning protrusions. Each positioning protrusion can extend into a gap between corresponding adjacent cells and makes contact with side faces of the corresponding cells. The fixing frame is provided with installation holes. The bus bar is embedded in the installation holes, makes contact with and electrically connects the multiple cells. The CCS further includes a heat-conductive adhesive, and the heat-conductive adhesive is arranged on end faces of the fixing frame and the bus bar.

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.