Absstract of: US2021184299A1

The present invention relates to a pouch exterior material which is for a lithium secondary battery and includes an inner layer, an outer resin layer, and a metal layer located between the inner layer and the outer resin layer, wherein the inner layer contains an ethylenically unsaturated group, and a lithium secondary battery including the pouch exterior material.

Absstract of: DE102019219602A1

Eine Temperaturmesseinrichtung (10) für eine elektrische Batterie (20) umfasst eine mehrschichtige Leiterplatte (1) als Trägerelement mit einer oberen Leiterschicht (1a) und einer unteren Leiterschicht (1b), eine Vielzahl von Temperatursensoren (2), die jeweils konfiguriert sind, ein temperaturabhängiges Messsignal zu erzeugen, eine Vielzahl von Befestigungsmitteln (12) zum Befestigen der Leiterplatte (1) auf einer Batterie (20) und einen mehrpoligen Anschluss (11) zum Auslesen der Messsignale. Jeder der Vielzahl von Temperatursensoren (2) ist jeweils auf einem ersten isolierten Bereich (5a) der oberen Leiterschicht (1a) angeordnet. Die untere Leiterschicht (1b) weist für jeden Temperatursensor (2) einen zweiten isolierten Bereich (5b) als Wärmekontaktfläche auf. Jeder erste isolierte Bereich (5a) ist jeweils über mindestens eine Durchkontaktierung (4) wärmeleitend mit einem entsprechenden zweiten isolierten Bereich (5b) verbunden.

Absstract of: US2021184291A1

The invention relates to a heat transfer device (1) having a sleeve (4) closed on all sides, wherein the sleeve (4) defines a volume in which one insert element (3) or multiple insert elements (3) made of a sintered material is/are arranged to form at least one heat pipe, wherein at least one channel (2) for a heat transfer medium is formed in the sintered material, and the sleeve (4) is at least partially formed from a single-layer or multi-layer film (5, 6).

Absstract of: US2021184379A1

A flexible printed circuit board (FPCB) assembly for a battery module includes a insulated flexible film and conductor patterns arranged inside the film in a predetermined form, and the conductor patterns transmit an electric signal. The FPCB assembly includes a main FPCB configured to extend in one direction; and a sub FPCB assembled to at least one side of the main FPCB and configured to extend in a direction different from the main FPCB.

Absstract of: US2021184266A1

A method of producing a secondary battery includes an electrode body forming process and a resistance welding process. In the electrode body forming process, a sheet-like positive electrode and negative electrode are wound in an overlapping manner with a separator therebetween to form a flat wound electrode body. In the resistance welding process, a current collector terminal is bonded to at least one of a pair of uncoated parts which are positioned at both ends of the wound electrode body in a winding axis direction and to which no electrode mixture is applied by resistance welding. The resistance welding process is performed while metal members are brought into contact with the uncoated parts.

Absstract of: US2021184184A1

A rechargeable battery includes: an electrode assembly including first and second electrodes, a separator therebetween, first and second electrode tabs respectively connected to the first and second electrodes; a case accommodating the electrode assembly with the first electrode tab being connected thereto; and a cap assembly sealing an opening in the case. The cap assembly includes: a cap plate coupled to the case and covering the opening; and a terminal plate coupled to the cap plate. The terminal plate includes: a flange portion coupled to the cap plate and electrically insulated from the cap plate; and a tab connection portion protruding toward the electrode assembly from the flange portion, extending into a terminal opening in the cap plate, and being connected to the second electrode tab. An inner surface of the tab connection portion has a height difference with an inner surface of the cap plate.

Absstract of: US2021184201A1

A composite solid electrolyte includes: a solid electrolyte; and a protective layer on a surface of the solid electrolyte, wherein the protective layer comprises a compound of Formula 1LixM1yM2zOt+x/2  Formula 1wherein in Formula 1,M1 is an element having a Gibbs reaction energy of greater than 0 electron-volts per mole,M2 is an element of Groups 2 to 14,0

Absstract of: US2021181595A1

Devices and methods for sharing power between power sources are disclosed. The power sources may be internal to an electronic device, external to the electronic device, or both. An electronic device may include a power source, a switch circuit, a processor, and a power management integrated circuit (PMIC). The processor may determine a load current estimate. The load current estimate may be based on a device setting, an external temperature, or both. The processor may determine a power source voltage, an external power source voltage, or both. The processor may determine a power source current, an external power source current, or both. The PMIC may set an output power source current of the power source. The PMIC may set an output external power source current of the external power source.

Absstract of: US2021181258A1

The invention provides a battery pack diagnostic method and a battery pack diagnostic device. The method includes following steps: S1: detecting a battery temperature and an ambient temperature of the battery pack; S2: detecting a pre-load voltage of a discharge port of the battery pack before loading and a post-load voltage after loading; S3: detecting a charge voltage of a charge port of the battery pack and a discharge voltage of the discharge port; S4: detecting whether a hot-plugging interface of the battery pack has a hot-plugging signal. Compared with the prior arts, the present battery pack diagnostic method can quickly and comprehensively detect the battery pack and accurately determine the fault location, which improves a work efficiency of the maintenance personnel.

Absstract of: US2021179441A1

The present disclosure is directed to a composite metal oxide particle, and method of producing the same, having an excellent lithium ion conductivity that may be produced at low cost. The present disclosure relates to a garnet-type composite metal oxide particle, containing Li, La, Zr and O; Ga and/or Al; and a halogen element, where a part of a Li site is substituted with the Ga and/or the Al, and at least a part of a particle surface is covered with a melt-solidified material. A ratio of an area covered with the melt-solidified material to a total area of the particle is preferably 10% or more, and the halogen element is preferably Cl.

Absstract of: US2021178999A1

A vehicle body member includes a first cell portion including a first negative pole portion and a first positive pole portion disposed to be in contact with a surface of the first negative pole portion, a second cell portion including a second negative pole portion and a second positive pole portion disposed to be in contact with a surface of the second negative pole portion, an insulating layer disposed between the first cell portion and the second cell portion, a positive pole current collector connecting the first positive pole portion of the first cell portion and the second positive pole portion of the second cell portion in parallel, and a negative pole current collector connecting the first negative pole portion of the first cell portion and the second negative pole portion of the second cell portion in parallel.

Absstract of: US2021178902A1

Presented are electronic power module assemblies with direct-cooling heat pipe systems, methods for making/using such power module assemblies, and vehicles equipped with such power module assemblies. A power module assembly includes an outer housing with an internal coolant chamber that circulates therethrough a coolant fluid. A sidewall of the module's housing defines therethrough multiple coolant windows that fluidly connect to the coolant chamber. A power semiconductor switching device is mounted to the module housing, fluidly sealed to a first coolant window with the power device's inboard surface exposed to the coolant fluid. The power device is operable to modify electric current transmitted between a power source and an electrical load. A heat pipe with an outer casing has a first casing segment thereof mounted to an outboard surface of the power device, and a second casing segment fluidly sealed to a second coolant window and exposed to the coolant fluid.

Absstract of: US2021178882A1

A battery case of a battery storage device is disposed on a vehicle floor, thereby securing an interior space. A battery module of the battery storage device can be cooled by using an interior air, thereby simplifying a cooling structure and saving a manufacturing cost. In addition, the battery storage device for an electric vehicle blocks noise generated by a cooling device and an electrical component from flowing into the interior, thereby preventing the occurrence of a passenger's discomfort feeling caused by the noise.

Absstract of: US2021184312A1

Disclosed herein are soluble content absorbent glass mats or AGM separators for VRLA, AGM, or VRLA AGM batteries. Such glass mats may be prepared from insoluble glass fibers blended with soluble content materials. Upon exposure to a suitable solvent, the dissolving or solvating of the soluble content produces voids within the glass mat. The voids enhance the absorption of the solvent within the glass mat. The soluble content may be acid-soluble glass fibers or microfibers.

Absstract of: US2021184310A1

A nonaqueous electrolyte secondary battery separator film transfer device is provided which realizes a foreign object removing technique that is less likely to cause defects in a separator. The device includes a magnet bar which is arranged in a transfer path and generates a magnetic field for removing, from a separator film being transferred, a magnetic substance adhering to a first surface of the separator film; and an air cylinder which allows a distance to the magnet bar from the first surface of the separator film to be variable.

Absstract of: US2021184321A1

The present invention relates to a cylindrical lithium ion secondary battery which, when an upper end of a cylindrical can is clamped, can prevent deformation of a cap assembly so as to improve safety. For an example, a cylindrical lithium ion secondary battery is disclosed, the battery comprising: a cylindrical can; an electrode assembly received in the cylindrical can; and a cap assembly for sealing the cylindrical can, wherein: the cap assembly comprises a top plate having a notch formed thereon, a support plate disposed in close contact with a lower surface of the top plate and including a first through-hole formed through the center thereof, and a bottom plate electrically connected with the electrode assembly and connected to the lower surface of the top plate through the first through-hole; and the support plate has a strength greater than a strength of the top plate.

Absstract of: US2021183587A1

A power storage device has a first power storage unit, a second power storage unit, a third power storage unit, and a fourth power storage unit. The power storage device is provided with a common electrode being integrated molding to make the first power storage unit and the second power storage unit connected in series, the third power storage unit and the fourth power storage unit connected in series, the first power storage unit and the third power storage unit connected in parallel, and the second power storage unit and the fourth power storage unit connected in parallel, so inside of the power storage device can have high potential and high capacitance, and avoid the problem of increasing the overall impedance caused by the conventional welding process. Further, the power storage device uses both surfaces of the common electrode at the same time to save electrode material.

Absstract of: US2021184281A1

A mechanism for electrically contacting a printed circuit board to a battery cell composite system comprises a printed circuit board, at least one bimetallic element which is fastened to the printed circuit board, at least one cell connector for connecting the battery cell composite system to the printed circuit board, wherein the cell connector contacts the at least one bimetallic element with a connecting element, and a fastening element for fastening the connecting element to the at least one bimetallic element.

Absstract of: US2021184259A1

Disclosed is an additive for a nonaqueous electrolyte solution, including a compound represented by the following formula (1):in formula (1), X represents a sulfonyl group or a carbonyl group, R1 represents an alkyl group having 1 to 4 carbon atoms, which may be substituted with a halogen atom, a hydroxyl group, or the like, and R2 represents a hydrocarbon group having 1 to 3 carbon atoms, which may be substituted with a halogen atom.

Absstract of: US2021184213A1

The present disclosure relates to a positive active material for a lithium rechargeable battery, a manufacturing method thereof, and a lithium rechargeable battery including the positive active material, and it provides a positive active material which is a lithium composite metal oxide including nickel, cobalt, and manganese, and either has orientation in a direction of [001] with respect to an ND axis that is equal to or greater than 29% or has orientation in a direction of [120]+[210] with respect to an RD axis that is equal to or greater than 82% in the case of an EBSD analysis with a misorientation angle (Δg) that is equal to or less than 30 degrees.

Absstract of: US2021184256A1

The present disclosure relates to a gel polymer electrolyte for a lithium-air battery containing a zwitterion salt in a specific amount and to a lithium-air battery including the same and thus having a prolonged battery lifetime, thereby suppressing volatilization of the electrolyte and imparting the lithium-air battery with interfacial stability by inhibiting the formation of dendrites at a lithium anode and suppressing side reactions between the lithium anode and the liquid electrolyte. Moreover, the use of the zwitterion salt can improve the lithium-ion transference number, thereby increasing the lifetime of the battery.

Absstract of: US2021179430A1

A process for preparing a porous carbon material. The process comprises the process steps: providing a carbon source; providing an amphiphilic species; contacting the carbon source and the amphiphilic species to obtain a precursor; and heating the precursor to obtain the porous carbon material; wherein the carbon source comprises a carbon source compound, wherein the carbon source compound comprises an aromatic ring having one or more attached OH groups and an ester link.

Absstract of: US2021178913A1

A power storage device comprises: a cell group in which a plurality of battery cells are stacked; a cylindrical housing part that houses the cell group and has an opening at each end in a stacking direction of the battery cells; an end plate that covers the opening in the housing part; a vehicle body fastening member that is formed separately from the housing part and fastens the housing part to a vehicle body; and a bolt that fastens the end plate to the housing part, wherein the vehicle body fastening member has a threaded portion to be threadedly engaged with the bolt, and is fixed to the housing part by threadedly engaging the threaded portion with the bolt provided through the end plate and the housing part.

Absstract of: US2021177225A1

A cleaner holder includes: a first body having a first charging port configured to charge a cleaner; a second body protruding to a front side of the first body; and a battery accommodating space recessed downward from an upper surface of the second body to accommodate a battery detachably mounted to the cleaner, wherein a second charging port configured to charge the battery is provided in the battery accommodating space, and a cleaner guide configured to perform guiding such that terminals of the cleaner come into contact with the first charging port is provided in the second body.

Absstract of: US2021184249A1

A solid electrolyte including: an oxide represented by Formula 1LiyMzHfO3-x  Formula 1wherein, in Formula 1,M is a divalent element, a trivalent element, or a combination thereof, and0≤x<3, 0