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Mitigating thermal runaway propagation in lithium-ion battery packs

NºPublicación:  NZ798856A 31/10/2025
Solicitante: 
BAE SYSTEMS CONTROLS INC
BAE SYSTEMS CONTROLS INC
CN_117099246_PA

Resumen de: NZ798856A

A lithium-ion battery assembly includes a plurality of battery cells in a spaced-apart and generally parallel arrangement, each cell of the battery cells extending along a central axis and having a first end portion with a negative terminal and a second end portion with a positive terminal· The assembly includes a first capture plate and a second capture plate, where at least the first capture plate defines capture plate openings corresponding to the plurality of battery cells, the first capture plate spaced from and oriented generally parallel to the second capture plate. Each of the plurality of battery cells extends between the first and second capture plates and is coaxially arranged with one of the capture plate openings in the first capture plate. The assembly optionally includes a body between the capture plates, the body defining a void for each battery cell.

Batterie comportant une pluralité de cellules de stockage d’énergie électrique et des circuits de surveillance individuelle des cellules

NºPublicación:  FR3161801A1 31/10/2025
Solicitante: 
PELLENC ENERGY [FR]
PELLENC ENERGY
FR_3161801_PA

Resumen de: FR3161801A1

L’invention concerne une batterie (BT) comprenant : plusieurs branches (BRj) connectées en parallèle entre des bornes positives de branche (BTHj) respectives et une borne externe négative (PTL) de batterie, chaque branche comprenant plusieurs modules (MDk) connectés en série, et une unité de gestion de batterie (BMU) connectée aux bornes positives de branche et aux bornes externes de la batterie, chaque module comprenant : plusieurs rameaux connectés en parallèle entre des bornes positives de rameau respectives et une borne négative de module, chaque rameau comprenant plusieurs cellules connectées en série, comprenant chacune deux bornes de connexion connectées à une unité de mesure respective, et une unité de gestion de module connectée aux bornes positives de rameau et aux bornes du module, et comprenant un premier circuit de communication pour communiquer avec les unités de mesure du module et un second circuit de communication pour communiquer avec l’unité de gestion de batterie. Figure 1

Procédé de communication entre des circuits de surveillance internes à une batterie, et batterie mettant en œuvre le procédé

NºPublicación:  FR3161802A1 31/10/2025
Solicitante: 
PELLENC ENERGY [FR]
PELLENC ENERGY
FR_3161802_PA

Resumen de: FR3161802A1

L’invention concerne un procédé de communication dans une batterie (BT) comprenant une pluralité de cellules (CLi), entre une unité de gestion (BMU), connectée à des bornes (PTH, PTL) de la batterie et des unités de mesure (MCi) connectées chacune entre deux bornes de connexion (CTH, CTL) d’une des cellules de la batterie, le procédé comprenant des étapes consistant à : émettre une requête (FR1) par l’unité de gestion en appliquant des chutes de tension aux bornes de la batterie ; recevoir la requête par chacune des unités de mesure, par démodulation de chutes de tension détectées aux bornes de la cellule associée ; émettre une réponse (CFR_J) par chaque unité de mesure, en appliquant des chutes de tension aux bornes de la cellule ; et recevoir la réponse par l’unité de gestion, par démodulation des chutes de tension détectées aux bornes de la batterie. Figure 1

Cellule en sachet de batterie électrique et procédé de fabrication correspondant.

NºPublicación:  FR3161806A1 31/10/2025
Solicitante: 
VERKOR [FR]
VERKOR
FR_3161806_PA

Resumen de: FR3161806A1

La présente divulgation concerne une cellule en sachet (100) pour un module de batterie électrique (1000), formée d’un sachet refermable (101) comprenant au moins une bande d’électrodes (150, 152, 154) dont les électrodes sont aptes, en fonctionnement, à faire réagir électro-chimiquement un électrolyte, la réaction électrochimique de l’électrolyte déclenchant la génération d’un gaz, le sachet refermable (101) comprenant une pluralité de logements (110, 120) alignés, chacun desdits logements (110, 120) étant formé dans une surface interne du sachet refermable (101) et étant apte à accueillir le gaz généré.

PROCEDE DE DETECTION D’UNE IMMOBILISATION D’UN VEHICULE AUTOMOBILE RECHARGEABLE PREALABLE A UNE DECHARGE PROFONDE CRITIQUE D’UNE BATTERIE DE TRACTION DUDIT VEHICULE

NºPublicación:  FR3161755A1 31/10/2025
Solicitante: 
STELLANTIS AUTO SAS [FR]
STELLANTIS AUTO SAS
FR_3161755_PA

Resumen de: FR3161755A1

L’invention concerne un procédé de détection d’une immobilisation d’un véhicule automobile rechargeable préalable à une décharge profonde critique d’une batterie de traction dudit véhicule comportant une étape d’enregistrement d’une date d’arrêt de la charge DCfin(n) ; une étape d’enregistrement d’une date de début de la charge DCinit(n+1) lorsque un moyen de rechargement est enfiché dans l’embase de rechargement ; une étape de calcul d’un premier intervalle de temps IntD entre la date d’arrêt de la charge DCfin(n) et la date de début de la charge DCinit(n+1) par la formule mathématique suivante : IntD = DCinit(n+1) - DCfin(n), le premier intervalle de temps IntD étant stocké dans ledit boîtier de servitude intelligent ou une étape d’enregistrement d’une date actuelle Dactu à laquelle la batterie est en décharge profonde critique, un deuxième intervalle de temps IntDactu étant calculé par la formule mathématique suivante : IntDactu = Dactu - DCfin(n). Figure 1

Matériau composite pour électrode positive d’une batterie comprenant un matériau actif dont la surface est recouverte au moins partiellement d’un matériau particulier

NºPublicación:  FR3161805A1 31/10/2025
Solicitante: 
AMPERE SAS [FR]
AMPERE SAS
FR_3161805_A1

Resumen de: FR3161805A1

La présente invention concerne un matériau composite pour électrode positive d’une batterie comprenant au moins un matériau actif pour électrode positive, ledit matériau actif comprenant au moins du sodium et au moins un métal choisi parmi Ni, Mn, Co, Ti, V, Cr, Fe, Cu, Mg et leurs mélanges, dont la surface est recouverte au moins partiellement d’une couche d’au moins de Na3PS4.

Procédé de fabrication du matériau actif pour électrode positive Li2S

NºPublicación:  FR3161804A1 31/10/2025
Solicitante: 
AMPERE SAS [FR]
AMPERE SAS
FR_3161804_A1

Resumen de: FR3161804A1

La présente invention concerne un procédé de fabrication du matériau actif pour électrode positive Li2S comprenant : a) la mise en contact d’au moins un métal choisi parmi Li, Ni, Mn, Co, Ti, V, Cr, Fe, Cu, Mg, Al et leurs mélanges avec au moins une solution d’acide sulfurique pour obtenir une solution S1 ; b) la purification de la solution S1 ; c) la séparation par extraction par solvant pour obtenir une solution de sulfate de lithium ; d) la réduction du sulfate de lithium pour obtenir le matériau actif pour électrode positive Li2S.

Dispositif de support de cellule électrochimique à recycler

NºPublicación:  FR3161803A1 31/10/2025
Solicitante: 
BLUE SOLUTIONS [FR]
BLUE SOLUTIONS
FR_3161803_PA

Resumen de: FR3161803A1

Dispositif (3) de support d’un composant (10) tel qu’une cellule électrochimique comprenant du lithium métallique solide à recycler. Le dispositif (3) comprend une enveloppe (21) et un organe de butée (44) configurés pour empêcher un contact direct du composant (10) avec une armature (20) du dispositif (3) tout en facilitant une extraction du lithium métallique liquéfié. Installation et procédé d’extraction s’y rapportant. Figure pour l’abrégé : Fig. 6

Elément électrochimique comprenant un faisceau électrochimique enroulé en spirale et procédé de fabrication associé

NºPublicación:  FR3161800A1 31/10/2025
Solicitante: 
SAFT [FR]
SAFT
FR_3161800_PA

Resumen de: FR3161800A1

Elément électrochimique comprenant un faisceau électrochimique enroulé en spirale et procédé de fabrication associé L’élément électrochimique (10) comprend un faisceau électrochimique comportant un ensemble plat (22) enroulé en spirale autour d’un axe central (A-A’) et comprenant : - une électrode négative (30) ; - une électrode positive (60) ; et - un séparateur (90). L’électrode négative (30) présente une forme de profilé en U et délimitant un espace intermédiaire (38) d’électrode négative (30). L’électrode positive (60) présente une forme de profilé en U et délimite un espace intermédiaire (68) d’électrode positive (60). Une première partie électrochimiquement active (64) de l’électrode positive (60) s’étend dans l’espace intermédiaire (38) d’électrode négative (30) et une deuxième partie électrochimiquement active (36) de l’électrode négative (30) s’étend dans l’espace intermédiaire (68) d’électrode positive (60). Figure pour l'abrégé : Figure 3

POUCH CELL, AND METHOD OF MAKING IMPROVED POUCH CELLS

NºPublicación:  US2025337059A1 30/10/2025
Solicitante: 
GM GLOBAL TECH OPERATIONS LLC [US]
GM GLOBAL TECHNOLOGY OPERATIONS LLC
US_2025337059_PA

Resumen de: US2025337059A1

A pouch cell formed of wall plies, each wall ply having a metal foil outer layer, and a polymeric inner layer. An external cathode lead tab with a polymer sealing film containing electrically conductive filler on at least one face of the external lead tab is heat-sealed between the edges of two wall plies. A method of making a pouch cell includes disposing a metallic external cathode lead tab with a polymer sealing film strip containing electrically conductive filler, between the edges of pouch wall plies, each pouch wall ply having a metal foil outer layer, and a polymeric inner layer, and applying heat and pressure to the wall plies to heat seal the external cathode lead tab and provide electrical connectivity between the metal foil layer of the wall ply and the external cathode lead tab.

FLOW DISTRIBUTION ASSEMBLY AND BATTERY RACK

NºPublicación:  US2025337037A1 30/10/2025
Solicitante: 
EVE ENERGY STORAGE CO LTD [CN]
EVE ENERGY STORAGE CO., LTD
US_2025337037_PA

Resumen de: US2025337037A1

A flow distribution assembly and a battery rack are provided. The flow distribution assembly includes a mounting component and a flow distribution component. The flow distribution component is provided with a flow guide hole. The flow distribution component is connected to the mounting component, and is capable of rotating relative to the mounting component to change a flow direction of a medium distributed through the flow guide hole.

COMPOSITIONS AND METHODS FOR FLUOROSURFACTANTS IN METAL ION BATTERIES

NºPublicación:  US2025337016A1 30/10/2025
Solicitante: 
EKK ADVANCED TECH LLC [US]
EKK ADVANCED TECHNOLOGIES, LLC
US_2025337016_PA

Resumen de: US2025337016A1

The present disclosure provides, inter alia, compositions and methods for improving metal ion battery performance. In some aspects, the present disclosure provides an electrolyte comprising a fluorosurfactant additive that is effective to improve battery lifetime, initial capacity, capacity fade, wetting time, and dendrite formation in a metal ion battery.

BATTERY, BATTERY PREPARATION METHOD, AND POWERED DEVICE

NºPublicación:  US2025337010A1 30/10/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
US_2025337010_PA

Resumen de: US2025337010A1

A battery, the preparation of a battery, and a powered device are described. The battery includes a negative electrode plate that includes a negative electrode current collector and an active layer. The active layer is located on at least one surface of the negative electrode current collector. The active layer includes an active substance, a gel electrolyte, and a liquid electrolyte. An expansion rate of the negative electrode plate is greater than or equal to 10%. When the active substance expands during cycling, the gel electrolyte can stably fix the liquid electrolyte in the negative electrode plate, thereby reducing the risk of squeezing-induced leakage of a liquid electrolyte solution due to the expansion of the active substance. Thus, the negative electrode plate can maintain a relatively stable kinetic performance, thereby improving the cycling performance of the battery.

ENERGY STORAGE DEVICE

NºPublicación:  US2025337073A1 30/10/2025
Solicitante: 
SHENZHEN HELLO TECH ENERGY CO LTD [CN]
Shenzhen Hello Tech Energy Co., Ltd
US_2025337073_PA

Resumen de: US2025337073A1

The present disclosure discloses an energy storage device, including a battery pack, a waterproof plug, and a short circuit detection unit. The battery pack includes a housing and a connection terminal. The housing has an opening, and the connection terminal is disposed at the opening. The waterproof plug includes an electrical connection member configured to, in response to the waterproof plug covering the opening, connect to the connection terminal to generate a second signal. The short circuit detection unit is configured to determine, by detecting the second signal, that the battery pack is located at a bottom of the energy storage device.

ELECTROLYTE AND LITHIUM ION BATTERIES MADE THEREWITH

NºPublicación:  US2025337015A1 30/10/2025
Solicitante: 
WILDCAT DISCOVERY TECH INC [US]
Wildcat Discovery Technologies, Inc
US_2025337015_PA

Resumen de: US2025337015A1

Electrolytes comprising a solvating solvent, lithium salt and a halogenated alkane in an amount of 0.05% to 5% by weight of the electrolyte improve the cycling performance of lithium ion batteries and in particular lithium ion batteries having lithium metal anodes or anode-less anodes with Li intercalating cathode (e.g., cathodes comprised of layered nickel, manganese cobalt oxides).

POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND POSITIVE ELECTRODE INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL

NºPublicación:  US2025336931A1 30/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_2025336931_PA

Resumen de: US2025336931A1

Disclosed are positive electrode active materials for a rechargeable lithium battery and positive electrodes including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, second particles having a spinel structure, and third particles having a layered structure. The amount of the third particles is about 10 parts by weight to about 50 parts by weight based on 100 parts by weight of the positive electrode active material.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ELECTRODE INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL

NºPublicación:  US2025336929A1 30/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_2025336929_PA

Resumen de: US2025336929A1

Disclosed are positive electrode active materials for a rechargeable battery, positive electrodes including the positive electrode active materials, and rechargeable lithium batteries including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, second particles comprising a compound having a spinel structure, third particles having a layered structure and fourth particles. The first particles and the second particles constitute a main active material, and the amount of the main active material is about 75 parts by weight to about 85 parts by weight based on 100 parts by weight of the positive electrode active material.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ELECTRODE INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL

NºPublicación:  US2025336926A1 30/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_2025336926_PA

Resumen de: US2025336926A1

Disclosed are a positive electrode active material for a rechargeable battery, positive electrodes including the positive electrode active material, and recharageable lithum batteries including the positive electrode active material. The positive electrode active material comprises first particles having an olivine structure, second particles having a spinel structure, third particles having a layered structure and fourth particles. A weight ratio of the fourth particles is about 0.5 wt % to about 5 wt % based on a total weight of the positive electrode active material.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

NºPublicación:  US2025336930A1 30/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_2025336930_PA

Resumen de: US2025336930A1

Disclosed are positive electrode active materials for a rechargeable lithium battery, methods for preparing the same, and rechargeable lithium batteries including the same. For example, the positive electrode active material includes first particles including a compound represented by Chemical Formula 1, and second particles including a compound represented by Chemical Formula 2. The first particles and the second particles are included in a weight ratio of about 80:20 to about 60:40.

BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

NºPublicación:  US2025337096A1 30/10/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
US_2025337096_PA

Resumen de: US2025337096A1

This application provides a battery cell, a battery, and an electric apparatus. The battery cell includes a housing and a pressure relief mechanism. The housing has a first wall and a second wall disposed opposite each other along a first direction. The housing is provided with a recess, where the recess is recessed relative to a surface of the second wall facing away from the first wall. The pressure relief mechanism is disposed on the first wall, where a projection of the pressure relief mechanism along the first direction at least partially overlaps a projection of the recess along the first direction.

CELL CASING FOR A BATTERY CELL BODY

NºPublicación:  US2025337093A1 30/10/2025
Solicitante: 
HOERBIGER ANTRIEBSTECHNIK HOLDING GMBH [DE]
Hoerbiger Antriebstechnik Holding GmbH
US_2025337093_PA

Resumen de: US2025337093A1

A cell casing for a battery cell body has side walls and a bursting device which is arranged on one of the side walls. The bursting device is formed from an insert element and a bursting membrane. The insert element has a bursting aid having a cutting geometry which is associated with the bursting membrane. The bursting aid projects in the direction of the bursting membrane beyond a plane defined by the insert element.

COMPOSITE SUBSTRATE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

NºPublicación:  US2025337118A1 30/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_2025337118_PA

Resumen de: US2025337118A1

Example embodiments include a composite substrate for a rechargeable lithium battery, and a rechargeable lithium battery including the composite substrate. Example embodiments include a composite substrate for a rechargeable lithium battery that includes a support layer containing a polymer resin matrix and two or more conductive materials, and a metal layer on at least one surface of the support layer, wherein the two or more conductive materials include two or more materials including at least one of a conductive metal, a conductive polymer, a conductive oxide, a fibrous material (FIB), and a carbon nanotube (CNT).

ELECTRONIC SYSTEM WITH SEALING ELEMENT

NºPublicación:  US2025337068A1 30/10/2025
Solicitante: 
VALEO SYSTEMES THERMIQUES [FR]
Valeo Systemes Thermiques
US_2025337068_PA

Resumen de: US2025337068A1

An electronic system includes electrical and/or electronic components and a temperature regulating device that includes a case. The case is configured to accommodate the electrical and/or electronic components. The case includes a bottom wall and side walls opposite each other in pairs defining an inner recess capable of receiving the components positioned side-by-side in a longitudinal direction of the case. The case also includes at least one temperature-regulating fluid supply element and at least one temperature-regulating fluid discharge element. The electronic system includes a sealing element that is configured to be arranged both between the components and the walls of the case and in each gap formed between two neighboring components.

ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

NºPublicación:  US2025337111A1 30/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_2025337111_PA

Resumen de: US2025337111A1

The present disclosure relates to an electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the electrode. The electrode for a rechargeable lithium battery includes an active material layer for a rechargeable lithium battery, and an organic layer integrated with the active material layer. The organic layer includes a sea-island region including an island region and a sea region, and the area percentage of the island region in the sea-island region is in a range of about 1% to about 20%.

BATTERY HOLDER WITH PLUG

Nº publicación: US2025337067A1 30/10/2025

Solicitante:

LOTES CO LTD [TW]
LOTES CO., LTD

US_2025337067_PA

Resumen de: US2025337067A1

A battery holder, in which a limiting portion of a plug is inserted downward into a space between the retaining portion and the elastic arm to stop the elastic arm from excessively deviating toward a direction away from the battery, thus retaining the battery in the accommodating space, and preventing the battery from falling from the accommodating space. A gap exists between the limiting portion and the contact section or the contact spring arm, thus preventing the plug from abutting against the contact section or the contact spring arm in the inserting or pulling process, such that the contact section or the contact spring arm maintains elastically abutting against the battery.

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