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Batteriegehäuse für eine Hochvoltbatterie, sowie ein Herstellungsverfahren für ein Batteriegehäuse

Publication No.:  DE102025113903A1 15/10/2026
Applicant: 
PORSCHE AG [DE]
Dr. Ing. h.c. F. Porsche Aktiengesellschaft
DE_102025113903_PA

Absstract of: DE102025113903A1

Die Erfindung betrifft ein Batteriegehäuse für eine Hochvoltbatterie eines Kraftfahrzeugs, aufweisend zumindest die folgenden Komponenten:- ein Strangpressprofil;- eine Gehäuseabdeckung; und- eine zumindest eine Befestigungsschraube, mittels welcher der Gehäuseabdeckung an dem Strangpressprofil verschraubt ist. Das Batteriegehäuse ist vor allem dadurch gekennzeichnet, dass das Strangpressprofil eine vorgefertigte, integrale Materialaufweitung aufweist, in welcher die zumindest eine Befestigungsschraube mit dem Strangpressprofil verschraubt ist.Es ist ein Batteriegehäuse mit Strangpressprofil für eine Hochvoltbatterie vorgeschlagen, welche eine besonders dichte und kostengünstige Abdichtung des Batteriegehäuses ermöglicht

Wickelkern

Publication No.:  DE102025114144A1 15/10/2026
Applicant: 
BAYERISCHE MOTOREN WERKE AG [DE]
Bayerische Motoren Werke Aktiengesellschaft
DE_102025114144_PA

Absstract of: DE102025114144A1

Wickelkern (2) für die Herstellung von Elektrodenmaterial für elektrische Energiespeicherzellen für Hochvoltspeicher, insbesondere für Kraftfahrzeuge, wobei der Wickelkern (2) dazu ausgebildet ist, durch Aufwickeln einer Elektrodenfolie (3), insbesondere einer Trägerfolie, die Elektrodenfolie (3) auf dem Wickelkern (2) aufzunehmen und/oder durch Abwickeln der Elektrodenfolie (3) die Elektrodenfolie (3) bereitzustellen, wobei der Wickelkern (2) wenigstens eine Nut (7) aufweist, in der ein, insbesondere ringförmiger, Halteabschnitt (5) aus einem Gecko-Effekt-Material (4) angeordnet ist.

Vehicle rear section structure

Publication No.:  AU2026202151A1 15/10/2026
Applicant: 
TOYOTA JIDOSHA KK
Toyota Jidosha Kabushiki Kaisha
AU_2026202151_A1

Absstract of: AU2026202151A1

A vehicle rear section structure including a channel member configuring a smoke discharge channel into which smoke generated from a storage battery cell flows, a smoke discharge vent that allows one-way outflow of gas from inside the smoke discharge channel to outside the smoke discharge channel, a membrane member that allows movement of gas with respect to the smoke discharge channel and that prevents movement of liquid with respect thereto, and a protection member that is arranged further to a vehicle rear side than the membrane member and that surrounds and protects a routing member of a vehicle. VEHICLE REAR SECTION STRUCTUREVEHICLE REAR SECTION STRUCTURE ar a r a r (6 0) (6 0) 64(60) 62(60) ar a r a r

Vehicle

Publication No.:  AU2026202187A1 15/10/2026
Applicant: 
TOYOTA JIDOSHA KK
Toyota Jidosha Kabushiki Kaisha
AU_2026202187_A1

Absstract of: AU2026202187A1

A vehicle 10 includes a battery pack 13 and plural cable connecters 16A, 16B, 16C, 16D that are each electrically connected to the battery pack 13. The plural cable connecters 16A, 16B, 16C, 16D are arranged below a vehicle rear end portion of the battery pack 13. The plural cable connecters 16A, 16B, 16C, 16D are arranged alongside each other in a vehicle width direction. At least one out of the plural cable connecters 16A, 16B, 16C, 16D has a cable direction oriented in an inclined direction sloping toward a vehicle width direction one-side on progression toward the vehicle rear. VEHICLEVEHICLE ar a r a r VEHICLE CABIN ar a r a r

Vehicle structure

Publication No.:  AU2026202261A1 15/10/2026
Applicant: 
TOYOTA JIDOSHA KK
Toyota Jidosha Kabushiki Kaisha
AU_2026202261_A1

Absstract of: AU2026202261A1

A vehicle structure that includes: a battery case that is disposed along a floor of a vehicle and houses battery cells inside; a battery device case that is disposed on the upper side of the battery case on a cabin side and houses a battery device inside; and a charging device that is disposed on the vehicle upper side of the battery device and is fixed to the battery device case. VEHICLE STRUCTUREVEHICLE STRUCTURE device case. ar a r a r ar a r a r

Vehicle structure

Publication No.:  AU2026201868A1 15/10/2026
Applicant: 
TOYOTA JIDOSHA KK
Toyota Jidosha Kabushiki Kaisha
AU_2026201868_A1

Absstract of: AU2026201868A1

A vehicle structure including plural storage battery modules, each including plural storage battery cells arranged in a row along a first direction, the plurality of storage battery modules being arranged with a spacing with respect to each other in a second direction orthogonal to the first direction, a channel member configuring part of a smoke discharge channel allowing a flow of smoke generated from the storage battery cells, a reinforcement member extends along the first direction in the spacing between the storage battery modules and that has an interior in communication with the smoke discharge channel at a one-end and an other-end of the reinforcement member, and joining members that are disposed at the one- end and the other-end of the reinforcement member, and that each include a first join face joined to the channel member and a second join face joined to the reinforcement member. Vehicle structureVehicle structure ar a r a r Up do oz Or ? Or ? D> ar % a r a r

ELECTRODE SHEET, ELECTRODE SHEET COATING APPARATUS AND COATING METHOD THEREFOR, AND BATTERY

Publication No.:  AU2025434367A1 15/10/2026
Applicant: 
EVE POWER CO LTD
EVE POWER CO., LTD.
AU_2025434367_A1

Absstract of: AU2025434367A1

The present application provides an electrode sheet, an electrode sheet coating apparatus and a coating method therefor, and a battery. The electrode sheet comprises a current collector, a first electrode coating layer, and a second electrode coating layer, wherein the first electrode coating layer is at least arranged on a first surface of one side of the current collector, the second electrode coating layer is stacked on a first surface of the side of the first electrode coating layer facing away from the current collector, a second peripheral side edge of the second electrode coating layer exceeds a first peripheral side edge of the first electrode coating layer to form a filling portion, and the thickness of the filling portion is greater than the thickness of the first electrode coating layer.

NEGATIVE ELECTRODE, METHOD FOR MANUFACTURING SAME, AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Publication No.:  WO2026216726A1 15/10/2026
Applicant: 
SAMSUNG SDI CO LTD [KR]
\uC0BC\uC131\uC5D0\uC2A4\uB514\uC544\uC774 \uC8FC\uC2DD\uD68C\uC0AC
WO_2026216726_A1

Absstract of: WO2026216726A1

Disclosed are a negative electrode, a method for manufacturing same, and an all-solid-state battery comprising same, the negative electrode comprising: a current collector comprising a main body part including a first region and a second region and a negative electrode tab extending outward from one end of the first region; and a negative electrode coating layer comprising a first negative electrode coating layer disposed on the first region and a second negative electrode coating layer disposed on the second region, wherein each of the first and second negative electrode coating layers includes a carbon-based material and a metal, and the weight ratio (wt%) of the metal in the first negative electrode coating layer on the basis of the total weight of the first negative electrode coating layer is smaller than the weight ratio (wt%) of the metal in the second negative electrode coating layer on the basis of the total weight of the second negative electrode coating layer.

LITHIUM-ION BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL, LITHIUM-ION BATTERY POSITIVE ELECTRODE, LITHIUM-ION BATTERY, SOLID-STATE LITHIUM-ION BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL, SOLID-STATE LITHIUM-ION BATTERY POSITIVE ELECTRODE, SOLID-STATE LITHIUM-ION BATTERY, METHOD FOR MANUFACTURING LITHIUM-ION BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL, AND METHOD FOR MANUFACTURING SOLID-STATE LITHIUM-ION BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL

Publication No.:  WO2026216153A1 15/10/2026
Applicant: 
JX ADVANCED METALS CORP [JP]
\uFF2A\uFF38\u91D1\u5C5E\u682A\u5F0F\u4F1A\u793E
WO_2026216153_A1

Absstract of: WO2026216153A1

A lithium-ion battery positive electrode active material represented by the composition indicated in formula (1). Formula (1): LiaNibCocMndNbeOf (In formula (1), 1.0 ≤ a ≤ 1.07, 0.88 ≤ b ≤ 0.92, b + c + d + e = 1, 1.8 ≤ f ≤ 2.2, and 0.005 ≤ e/(b + c + d + e) ≤ 0.0072.) This lithium-ion battery positive electrode active material has a crystallite size at a (003) plane of 450-600 Å, a 50% cumulative volume particle size D50 of 5-8 μm, and a particle strength of 100 MPa or greater.

REGENERATIVE THERMAL MANAGEMENT SYSTEM WITH MULTI-BAY HEAT EXCHANGE AND CONTROLLED THERMAL MODULATION

Publication No.:  WO2026217816A1 15/10/2026
Applicant: 
HEALIXA IQ INC [US]
HEALIXA IQ INC.
WO_2026217816_A1

Absstract of: WO2026217816A1

A thermal management system for controlled cooling and/or heating is disclosed. The system comprises a multi-domain heat exchange assembly including a plurality of thermal domains having at least one phase change material (PCM) domain, thermally responsive media domain, or both, a plurality of heat exchanger segments disposed within respective thermal domains, a valve selection manifold configured to selectively route a heat transfer fluid, and a controller configured to actuate the valve selection manifold. The controller operates to selectively couple fewer than all heat exchanger segments at a given time in accordance with activation and recovery intervals, thereby distributing thermal energy across the thermal domains in both space and time.

FLEXIBLE ULTRA-LARGE CAST BATTERY FRAME

Publication No.:  US20260321837A1 15/10/2026
Applicant: 
MAGNA INT INC [CA]
MAGNA INTERNATIONAL INC.
US_20260321837_A1

Absstract of: US20260321837A1

0000 An ultra-large cast battery frame includes a plurality of integrally cast battery module bays that are scalable from the initial ultra-large cast battery frame to form a plurality of differently and smaller sized cast battery frame geometries. Put another way, a method of manufacturing a battery frame includes initially casting an ultra-large integral cast battery frame having a plurality of integrally cast battery module bays. At least one of the integrally cast battery module bays can then be split or cut away from the initial ultra-large cast battery frame to scale-down and form a smaller cast battery frame geometry. The smaller cast battery frame geometry has less integrally cast battery modules than initially present in the ultra-large cast battery frame, and thus provides a flexible manufacturing design that can be easily adapted and scaled to accommodate multiple types of differently sized battery frames.

BATTERY CELL AND BATTERY DEVICE INCLUDING THE SAME

Publication No.:  US20260321916A1 15/10/2026
Applicant: 
SK ON CO LTD [KR]
SK On Co., Ltd.
US_20260321916_A1

Absstract of: US20260321916A1

The present disclosure provides a battery cell including: an electrode assembly including a plurality of electrode plates arranged in a first direction and a plurality of bundles of non-coated portions, drawn from the plurality of electrode plates; a cell case having the electrode assembly accommodated therein; and an electrode lead electrically connected to the plurality of bundles of non-coated portions, which include a bundle of first cathode non-coated portions, a bundle of second cathode non-coated portions, a bundle of first anode non-coated portions, and a bundle of second anode non-coated portions, the electrode lead includes first and second cathode leads and first and second anode leads respectively connected to the bundle of first cathode non-coated portions, the bundle of second cathode non-coated portions, the bundle of first anode non-coated portions, and the bundle of second anode non-coated portions, and the electrode lead is exposed externally of the cell case.

CARBON FIBER SUPPORT FOR A LITHIUM METAL NEGATIVE ELECTRODE AND A METHOD FOR MANUFACTURING THE SAME

Publication No.:  US20260321658A1 15/10/2026
Applicant: 
HYUNDAI MOTOR CO LTD [KR]
KIA CORP [KR]
GWANGJU INST OF SCIENCE AND TECHNOLOGY [KR]
HYUNDAI MOTOR COMPANY
KIA CORPORATION
Gwangju Institute of Science and Technology
US_20260321658_A1

Absstract of: US20260321658A1

0000 A carbon fiber support includes a current collector and a lithium-containing layer including a conductive carbon fiber and disposed on the current collector, wherein lithium in the lithium-containing layer has a lithium concentration gradient in which a lithium concentration gradually decreases as a distance from the current collector increases, and the lithium-containing layer further includes pores therein.

RECHARGEABLE BATTERY

Publication No.:  US20260321866A1 15/10/2026
Applicant: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD.
US_20260321866_A1

Absstract of: US20260321866A1

A rechargeable battery, including an electrode assembly including a first electrode and a second electrode, a case housing the electrode assembly, a cap plate coupled to an opening of the case, the cap plate having a terminal hole and a vent hole configured to discharge gas, an electrode terminal installed in the cap plate, the electrode terminal including a first electrode terminal and a second electrode terminal, a lead tab including a first current collecting tab connecting the electrode assembly to the first electrode terminal and a second current collecting tab connecting the electrode assembly to the second electrode terminal, and an opening and closing unit configured to open or close in response to the pressure of the gas is in the vent hole.

Cap Plate of Battery Cell, Battery Cell Including the Same and Manufacturing Method for Battery Cell

Publication No.:  US20260321824A1 15/10/2026
Applicant: 
SK ON CO LTD [KR]
SK On Co., Ltd.
US_20260321824_A1

Absstract of: US20260321824A1

A cap plate of a battery cell, a battery cell including the same, and a manufacturing method for a battery cell are disclosed. In some implementations, a cap plate of a battery cell according to an embodiment of the present disclosure includes a plate body region; and a sidewall region recessed in the plate body region to form an electrolyte injection hole and having open end portions, in which at least one of the sidewall region and the plate body region may include at least one notch. According to one aspect of the present disclosure, there may be provided a cap plate for a battery cell capable of improving gas removal efficiency within a battery cell, a battery cell including the same, and a manufacturing method for a battery cell.

METHOD FOR PRODUCING POROUS CARBON AND POSITIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY

Publication No.:  WO2026215753A1 15/10/2026
Applicant: 
SEMICONDUCTOR ENERGY LABORATORY CO LTD [JP]
\u682A\u5F0F\u4F1A\u793E\u534A\u5C0E\u4F53\u30A8\u30CD\u30EB\u30AE\u30FC\u7814\u7A76\u6240
WO_2026215753_A1

Absstract of: WO2026215753A1

Provided are a lithium ion secondary battery excellent in charge/discharge cycle characteristics, and a method for producing the same. Alternatively, according to one aspect of the present invention, there are provided a secondary battery having a long cycle life and high safety or reliability, and a method for producing the same. A positive electrode is produced using porous carbon derived from a spherical resin and satisfying the following conditions: a BET specific surface area of 2000 m2/g to 3000 m2/g, and a pore volume of 1.2 cm3/g to 1.6 cm3/g for pores with diameters within the range of 1-100 nm as analyzed by the BJH method; a secondary battery comprising this positive electrode is then produced.

BATTERY CELL, BATTERY APPARATUS AND ELECTRIC APPARATUS

Publication No.:  WO2026214458A1 15/10/2026
Applicant: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2026214458_A1

Absstract of: WO2026214458A1

The embodiments of the present application relate to the technical field of batteries. Provided are a battery cell, a battery apparatus and an electric apparatus. The battery cell comprises a first wall, a conductive member and an insulating member, wherein the conductive member is disposed on the first wall, and the insulating member is disposed between the first wall and the conductive member to insulate the first wall from the conductive member, the insulating member comprising a first material and a second material, and the thermal conductivity of the first material being greater than the thermal conductivity of the second material. By means of improving an insulating member, the heat exchange efficiency between the insulating member and a first wall and between the insulating member and a conductive member is enhanced, and thus the heat dissipation effect and heat dissipation efficiency of the first wall can be effectively improved without affecting an internal space of a battery cell, thereby improving the fast charging performance of the battery cell.

BATTERY DEVICE AND ELECTRIC APPARATUS

Publication No.:  WO2026213830A1 15/10/2026
Applicant: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2026213830_A1

Absstract of: WO2026213830A1

Provided in the embodiments of the present application are a battery device and an electric apparatus. The battery device comprises: a plurality of battery cells; at least one chip disposed on the surface of the battery cells, wherein each chip is connected to at least one battery cell; and an accommodating compartment configured to accommodate the plurality of battery cells and the at least one chip. Each chip comprises a package housing, and a die, a first discrete assembly and a substrate, which are packaged inside the package housing, wherein the first discrete assembly comprises at least one electronic component; the die and the first discrete assembly are disposed on the substrate, and a control assembly integrated in the die is electrically connected to the first discrete assembly by means of a circuit wiring disposed on the substrate; and the control assembly is used for collecting or processing state information of the battery cells by using the first discrete assembly. In this way, the aging rate and device failure rate of the discrete assembly in a sampling circuit can be reduced, and the reliability and stability of the sampling circuit can be improved, thereby improving the reliability and stability of the battery device.

A BATTERY ASSEMBLY OF AN ELECTRIC VEHICLE, AN ELECTRIC VEHICLE AND A METHOD FOR PREVENTING CONDENSATION IN A BATTERY ASSEMBLY OF AN ELECTRIC VEHICLE

Publication No.:  WO2026215564A1 15/10/2026
Applicant: 
KONEHANSA OY [FI]
KONEHANSA OY
WO_2026215564_A1

Absstract of: WO2026215564A1

The invention relates to a battery assembly (1) of an electric vehicle (100), to an electric vehicle (100) and to a method for preventing condensation in a battery assembly (1) of an electric vehicle (100). The battery assembly (1) comprising a battery pack (2) having a plurality of battery modules (2a), a housing (3) having a housing space (30) inside the housing (3), a vacuum connection (4) provided to the housing (3) for connecting a vacuum pump (40) to the housing (3) to create a vacuum pressure in the housing space (30), a check valve (4a) being arranged to prevent backflow from the ambient space (31) to the housing space (30) for maintaining the vacuum pressure in the housing space (30), and a pressure measurement module (5) arranged to measure pressure difference between the housing space (30) and the ambient space (31).

ELECTRODE ASSEMBLY AND SECONDARY BATTERY

Publication No.:  US20260321910A1 15/10/2026
Applicant: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD.
US_20260321910_A1

Absstract of: US20260321910A1

An electrode assembly, including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, wherein the electrode assembly is wound around a winding axis, and the first electrode includes a substrate including a first portion extending toward one side of the electrode assembly, the first portion having a first height, a second portion extending toward the one side of the electrode assembly, the second portion having a second height being different from the first height, and a mixture layer on a portion of the substrate.

INSULATING BOLT, BATTERY PACK INCLUDING THE SAME, AND VEHICLE INCLUDING BATTERY PACK

Publication No.:  US20260318346A1 15/10/2026
Applicant: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
US_20260318346_A1

Absstract of: US20260318346A1

0000 An insulating bolt according to one embodiment of the present disclosure is an insulating bolt for use in a battery pack, including: a fastening member that is fastened to a target object and having a first coupling portion for coupling with a first tool; and a protective member that surrounds a part of the fastening member and having a second coupling portion for coupling with a second tool, at least a part of the protective member being made of an insulating material.

LEACHING METHOD FOR MIXED POSITIVE ELECTRODE MATERIAL OF SPENT LITHIUM-ION BATTERY

Publication No.:  WO2026213750A1 15/10/2026
Applicant: 
JIANGXI MIRACLE GOLDEN TIGER COBALT CO LTD [CN]
MIRACLE ETERNAL PTE LTD [SG]
\u6C5F\u897F\u5929\u5947\u91D1\u6CF0\u9601\u94B4\u4E1A\u6709\u9650\u516C\u53F8
\u5929\u5947\u6C38\u6052\u6709\u9650\u516C\u53F8
WO_2026213750_A1

Absstract of: WO2026213750A1

Disclosed in the present invention is a leaching method for a mixed positive electrode material of a spent lithium-ion battery. In the leaching method of the present invention, a low acid is firstly used to selectively leach lithium, nickel, cobalt and manganese in the mixed positive electrode material of a lithium-ion battery, so as to realize the separation of iron and phosphorus from lithium, nickel, cobalt and manganese; then, a high acid is used to strengthen the leaching of the residual iron and lithium, nickel, cobalt and manganese; and finally, iron phosphate is added as a seed crystal, and iron and phosphorus in the leachate are selectively precipitated in the form of iron phosphate under appropriate conditions, so as to realize efficient recovery of lithium, nickel, cobalt and manganese. The process flow is short, the equipment is simple, and the reagent cost is low.

CELL ARRAY ASSEMBLY INSPECTION APPARATUS AND METHOD

Publication No.:  WO2026216692A1 15/10/2026
Applicant: 
LG ENERGY SOLUTION LTD [KR]
\uC8FC\uC2DD\uD68C\uC0AC \uC5D8\uC9C0\uC5D0\uB108\uC9C0\uC194\uB8E8\uC158
WO_2026216692_A1

Absstract of: WO2026216692A1

The present invention relates to a cell array assembly inspection apparatus. The cell array assembly inspection apparatus comprises: a sliding module on which a cell array is disposed; a moving module vertically connected to the sliding module so as to move along the sliding module; a 2D image sensor connected to the moving module so as to recognize the cell array disposed on the sliding module in the vertical direction; and a control device for performing assembly inspection on the cell array by using a 3D profiler, a plurality of 2D images captured by the 2D image sensor, and 3D scan data generated by the 3D profiler.

Hochvoltbatterie mit Schaltvorrichtung zum Beheizen der Hochvoltbatterie

Publication No.:  DE102025114699A1 15/10/2026
Applicant: 
BAYERISCHE MOTOREN WERKE AG [DE]
Bayerische Motoren Werke Aktiengesellschaft
DE_102025114699_PA

Absstract of: DE102025114699A1

Die Erfindung betrifft ein Hochvoltsystem (1) für ein elektrifiziertes Kraftfahrzeug, aufweisend:- eine Hochvoltbatterie (2) mit mehreren Batteriezellen (3),- HV-Anschlüsse (HV+, HV-) zum Verschalten mit der Hochvoltbatterie (2),- eine mit den HV-Anschlüssen (HV+, HV-) verbundene Zwischenkreiskapazität (5),- eine Schaltvorrichtung (6), welche dazu ausgelegt ist, in einem ersten Schaltzustand eine erste Verschaltung der Batteriezellen (3) zum Bereitstellen einer ersten Batteriespannung der Hochvoltbatterie (2) an die HV- Anschlüsse (HV+, HV-) zu schalten und in einem zweiten Schaltzustand eine zweite Verschaltung der Batteriezellen (2) mit einer reduzierten zweiten Batteriespannung der Hochvoltbatterie (2) an die HV-Anschlüsse (HV+, HV-) zu schalten, und- eine Steuereinrichtung (7), welche bei einem Heizbedarf der Hochvoltbatterie (2) dazu ausgelegt ist, zumindest einen eine Temperatur der Hochvoltbatterie (2) erhöhenden Heizschaltzyklus der Schaltvorrichtung (6) bereitzustellen und hierfür die Schaltvorrichtung (6) zum Laden der Zwischenkreiskapazität (5) mit Ladung aus der Hochvoltbatterie (2) in den ersten Schaltzustand zu versetzen und zum Zurückspeisen der Ladung aus der Zwischenkreiskapazität (5) in die Hochvoltbatterie (2) in den zweiten Schaltzustand zu versetzen.

CYLINDRICAL BATTERY

Nº publicación: WO2026216491A1 15/10/2026

Applicant:

PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
\u30D1\u30CA\u30BD\u30CB\u30C3\u30AF\uFF29\uFF30\u30DE\u30CD\u30B8\u30E1\u30F3\u30C8\u682A\u5F0F\u4F1A\u793E

WO_2026216491_A1

Absstract of: WO2026216491A1

A cylindrical battery (1) comprises an electrode body (10) and an exterior can, and has a structure in which the lower end of a negative electrode (12) is connected to a negative electrode collector plate. The average value of the height differences Z1IN between the upper end position (11c) of a positive electrode mixture layer (11b) and the upper end position (12c) of a negative electrode mixture layer (12b) in five turns on the winding-start side of the electrode body (10) is 1.50 mm or more, is greater than the average value of the height differences Z2OUT between the lower end position (11d) of the positive electrode mixture layer (11b) and the lower end position (12d) of the negative electrode mixture layer (12b) in the five turns on the winding-start side of the electrode body (10), and is greater than the average value of the height differences Z1y in five turns on the winding-termination side of the electrode body (10).

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