Prüfer & Partner mbB Patentanwälte · Rechtsanwälte

The present disclosure relates to a battery assembly, wherein the battery assembly according to one aspect may include: a plurality of battery cells; and a plurality of barriers, wherein the plurality of battery cells and the plurality of barriers may be stacked in a first direction to form a stack, wherein the plurality of barriers may include one or more first barriers and one or more second barriers, wherein a thickness of the first barrier may be from 25% to 200% of a thickness of the battery cells, and a thickness of the second barrier may be 10% or less of the thickness of the first barrier.

A cathode active material for a lithium secondary battery according to exemplary embodiments of the present disclosure includes lithium metal oxide particles and a sulfur (S)-containing compound and a sodium (Na)-containing compound present on the surface or inside the lithium metal oxide particles. The surface portion of the lithium metal oxide particle has a concentration gradient of sulfur (S). The absolute value of the slope of the XPS signal of sulfur (S) in the surface portion is 20 cps/nm to 80 cps/nm.

A method for manufacturing a porous polymer film according to embodiments of the present disclosure may include: stretching a polymer sheet containing oil to prepare a preliminary porous polymer film; irradiating the preliminary porous polymer film with electron beams to produce a crosslinked porous polymer film; extracting oil from the crosslinked porous polymer film; and heat setting the crosslinked porous polymer film.

Disclosed is an immersion cooling module and an immersion cooling method. The immersion cooling module includes a housing (10) configured to contain a cooling fluid at a predetermined level and to accommodate one or more battery cells (20) that are disposed to be at least partially immersed in the cooling fluid. The housing (10) has a first end inlet (11) and a second end inlet (12) at opposite sides, respectively. The module further includes: a connection pipe (30) separately coupled below the housing (10), extending from the first end inlet (11) to the second end inlet (12), a connection conduit (41, 42, 43, 44) formed on a lower surface of the housing (10) for each of cooling spaces (L1, L2, L3, L4), with the spaces (L1, L2, L3, L4) being divided by the battery cell(s), so that the cooling fluid is flowable between the spaces and the connection pipe (30); a heat exchanger (50) coupled to the connection pipe (30) and having a cooling fluid outlet formed therein, and a fluid pump (61, 62) coupled to the connection pipe (30) and configured to control a flow direction of the cooling fluid toward the first side and the second side of the heat exchanger (50).

The present disclosure relates to a battery assembly. The battery assembly comprises a plurality of battery cells, a barrier, and a housing case configured to accommodate the plurality of cells and at least one first barrier and at least one second barrier. The first and second barrier may each comprise an exterior comprising an endothermic material, and the endothermic material may comprise a hydrogel comprising a polymer and water.

The battery cell may include: a first electrode assembly including a first terminal tab protruding in a first direction; a second electrode assembly which is adjacent to the first electrode assembly in a second direction intersecting the first direction, and includes a second terminal tab protruding in the first direction; a case defining a receiving space that receives the first electrode assembly and the second electrode assembly, and including an opening that is in communication with the receiving space and is opened in a third direction perpendicular to each of the first direction and the second direction; and a cap assembly covering at least a portion of the opening.

An anode for a secondary battery includes an anode current collector, and an anode active material layer disposed on a surface of the anode collector and including an alcohol. In a 1H NMR analysis of the anode active material layer, a sum of a peak area of a first peak observed in a range of 4 ppm to 4.5 ppm and a peak area of a second peak observed in a range of 3.5 ppm to 4 ppm is greater than 0, and 0.15 or less. A peak area of a third peak observed in a range of 1.5 ppm to 2 ppm is greater than 0, and 0.15 or less. A peak area of a fourth peak observed in a range of 1 ppm to 1.5 ppm is greater than 0, and 0.8 or less.

The present disclosure relates to a secondary battery and a manufacturing method thereof, wherein the secondary battery includes: an electrode; a case having a receiving space, and accommodating the electrode in the receiving space; a current collector including a first protruding member including a first projection and a second protruding member including a second projection; and a cap coupled to the case to allow the first projection and the second projection penetrate through, and covering the receiving space.

A connector is configured to be attached to a cable which includes at least one core wire, an insulation portion covering the core wire, a shield portion covering the insulation portion and a sheath covering the shield portion and being made of resin having flexibility. The connector includes a fixable member. The fixable member has a fixable portion. The fixable portion is configured to be wound around and fixed on the sheath of the cable. The fixable portion has a surface configured to be brought into contact with the sheath. The surface of the fixable portion is formed with a serration formed of a plurality of recessed portions. Each of the recessed portions extends in an axial direction of the cable.

The various embodiments described herein include methods, devices, and systems for simulating motion. In one aspect, a motion simulation system includes a base, a platform movable relative to the base and configured to support a payload, a plurality of weight bearing actuators, and a plurality of positioning actuator assemblies. Each weight bearing actuator comprises a pneumatic cylinder pivotably coupled to the base, wherein the pneumatic cylinder defines a cavity, and a piston rod defining a first end and a second end, wherein the first end is disposed at least partially within the cavity of the pneumatic cylinder to define a volume of the pneumatic cylinder, the second end is pivotably coupled to the platform, and the volume of pneumatic cylinder is configured to be pressurized to support the platform. Each positioning actuator assembly comprises a positioning actuator coupled to the base, the positioning actuator comprising a stator, a rotor configured to rotate relative to the stator and a connecting rod comprising a first end pivotably coupled to the rotor and a second end pivotably coupled to the platform, wherein the rotor is configured to rotate to translate the connecting rod and position the payload supported by the plurality of weight bearing actuators.