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1455
results.
Updated on
14/08/2025 [07:17:00]
Results 1000 to 1025 of 1455
Absstract of: WO2025156672A1
The present application relates to an electrode assembly, a battery cell, a battery and an electrical device. The electrode assembly comprises at least one positive electrode sheet; at least one negative electrode sheet which is alternately stacked with the positive electrode sheet; and a separator sandwiched between every two adjacent positive electrode sheet and negative electrode sheet, wherein a first accommodating cavity is formed between the positive electrode sheet and the separator adjacent thereto, a second accommodating cavity is formed between the negative electrode sheet and the separator adjacent thereto, and the first accommodating cavity and the second accommodating cavity are independently arranged and are not communicated with each other. According to the present application, the first accommodating cavity and the second accommodating cavity are independently arranged, the first accommodating cavity is filled with a first electrolyte, and the second accommodating cavity is filled with a second electrolyte, so that the first electrolyte and the second electrolyte are arranged in separate partitions, and do not affect each other, thereby effectively reducing the effect of the first electrolyte on a negative electrode and the effect of the second electrolyte on a positive electrode, and improving the battery performance.
Absstract of: WO2025156654A1
A composite separator and a preparation method therefor, and a battery and an electric device. The composite separator comprises a base membrane, wherein the base membrane has a first surface and a second surface arranged opposite each other, a non-woven fabric layer being provided on the first surface of the base membrane, the non-woven fabric layer comprising non-woven fabric material formed by polymer fibers, and the porosity of the non-woven fabric layer being at least 40%. The composite separator is used in the battery, the non-woven fabric layer being adjacent to a negative electrode sheet of the battery. The composite separator is formed by compounding the base membrane and the non-woven fabric formed by the polymer fibers, and when the composite separator is used in the battery, the non-woven fabric layer is close to the side of the negative electrode sheet; thus, on the basis of the characteristics of the non-woven fabric layer of the composite separator, the cycle stability, cycle life and safety of the battery are improved.
Absstract of: WO2025156556A1
A conductive slurry and a preparation method therefor, a composite electrode, and a flow battery. The conductive slurry is prepared from a conductive carbon black, carbon nanotubes, polyvinylidene fluoride and N-methylpyrrolidone. The composite electrode comprises a first electrode, a bipolar plate, a second electrode, and the conductive slurry as described above, wherein the conductive slurry is disposed between the first electrode and the bipolar plate and disposed between the second electrode and the bipolar plate. The conductive slurry is not only stable in the initial chemical state of a vanadium electrolyte of a common flow battery, but also has electrochemical stability during charging and discharging after a voltage is applied thereto. The conductive slurry has a long service life and does not degrade over time as the battery is used. The conductive slurry has a good bonding effect, and also enables the contact resistance to be reduced after the bipolar plate and carbon felt electrodes are compounded. Moreover, the conductive slurry itself has a good electrocatalytic activity, thereby providing reaction sites for a vanadium electrolyte commonly used in a flow battery and thus improving the efficiency and performance of the battery.
Absstract of: US2025244394A1
One aspect of the present disclosure includes a battery diagnosis apparatus including a measuring unit configured to measure a battery voltage, a battery current, and a battery temperature, a storage unit configured to store a plurality of internal resistance values calculated based on the battery voltage, the battery current, and an environment data item, which is a factor affecting an internal resistance value, at each diagnosis time of diagnosing defects of the battery, and a control unit configured to extract, at each diagnosis time, a plurality of diagnosis times, and a second condition that the plurality of diagnosis times are previous diagnosis times, calculate a moving average, and diagnose the defects of the battery by comparing the internal resistance value with an upper band threshold larger than the moving average by a predetermined value and a lower band threshold smaller than the moving average by a predetermined value.
Absstract of: US2025244393A1
A battery information providing apparatus according to an embodiment of the present disclosure includes: a profile acquisition unit that acquires a differential profile based on a capacity and a voltage of a battery; and a control unit that determines a target cycle corresponding to the battery and a target C-rate (current-rate) corresponding to the differential profile, and correct the differential profile based on an overvoltage profile corresponding to the target cycle and the target C-rate, thereby generating a corrected profile.
Absstract of: US2025244390A1
A battery profile generating apparatus includes: a charging/discharging unit configured to charge and discharge a battery; a measurement unit configured to measure battery information that includes at least one of the voltage, current, and temperature of the battery during the charging/discharging process; and a control unit. The control unit is configured to: determine a target temperature and a target C-rate corresponding to charging/discharging conditions based on a preset reference profile that represents the correspondence between a threshold temperature and a threshold C-rate; control the charging/discharging unit to charge or discharge the battery at the target C-rate when the battery temperature corresponds to the target temperature; and generate a battery profile corresponding to the battery based on the battery information.
Absstract of: US2025248137A1
A solar cell assembly preparation method. In the process of preparing a conductive layer, several conductive layers separated by a first trench are formed on the substrate. After the conductive layers are formed, the separating function of second separating members and the separating function of third separating members are respectively utilized to ensure that the functional layer groups formed on one side of the conductive layers are separated by and located on two sides of an entirety formed by the second separating members and the third separating members.
Absstract of: US2025244391A1
Voltage data capture circuits and techniques. In one example, a circuit includes a differential transconductance stage, a differential transimpedance stage, and an analog to digital converter (ADC). The differential transconductance stage is configured to convert a differential input voltage into a differential current, and the differential transimpedance stage is configured to convert the differential current into a differential output voltage. The ADC is configured to sample the differential output voltage to produce a digital output signal. The circuit may further include a common-mode voltage regulator configured to regulate a common-mode input voltage for the differential transimpedance stage. The circuit can be used, for instance, in a battery monitoring system, or other voltage monitoring application.
Absstract of: WO2025159624A1
A composite positive electrode, a composite positive electrode manufacturing method, and an all-solid-state battery comprising the composite positive electrode are disclosed. The composite positive electrode comprises: a plurality of sulfur particles with an arithmetic average particle size of 5-10 μm; a plurality of sulfur-containing solid electrolyte particles of formula Li6PS5X (here, X is Cl, Br or I); and a conductive material comprising a plurality of acetylene black carbon particles. The acetylene black carbon particles have an average particle size of 10-100 nm and a BET specific surface area of 50 m2g-1 to 150 m2g-1, and have a quasi-crystalline structure. The sulfur particles, the sulfur-containing solid electrolyte particles and the conductive material are ball-milled to form a milled mixture, and are pressed to form a composite positive electrode.
Absstract of: WO2025159593A1
The present invention relates to an electrolyte for a lithium-sulfur battery, and a lithium-sulfur battery including same. The electrolyte for a lithium-sulfur battery comprises a nonaqueous solvent, a lithium salt, a nitrate and an aryl derivative, wherein the nonaqueous solvent comprises a heterocyclic compound containing one oxygen atom (O) or sulfur atom (S) in the cyclic structure and glycol ether, and the aryl derivative comprises both a selenium-based aryl derivative and a tellurium-based aryl derivative.
Absstract of: WO2025159594A1
The present invention relates to an electrolyte for a lithium-sulfur battery and a lithium-sulfur battery including same. The electrolyte for a lithium-sulfur battery may include a non-aqueous solvent, a lithium salt, a nitrate, and an aryl derivative, wherein the non-aqueous solvent comprises: a heterocyclic compound containing one oxygen atom (O) or sulfur atom (S) in the ring structure; and glycol ether, and the aryl derivative contains at least one of compounds represented by any one of chemical formulas 1 to 4.
Absstract of: WO2025159001A1
This cylindrical battery is characterized by comprising: an electrode body in which a positive electrode and a negative electrode are wound via a separator; a non-aqueous electrolyte; a bottomed cylindrical exterior can that accommodates the electrode body and the non-aqueous electrolyte; a sealing body that closes the opening of the exterior can; and an insulating plate (30) that is disposed between the electrode body and the sealing body and has a through-hole (32). The cylindrical battery is further characterized in that the surface of the insulating plate (30) on the electrode body side is provided with a protrusion (33) extending toward the electrode body along the edge of the through-hole (32) in a region facing the electrode body.
Absstract of: US2025243560A1
Provided are a metal extractant for extracting metal ions present in a water phase to an oil phase, and a separation recovery method of metal ions. In the metal extractant, nitrogen atoms positioned at both terminals of a molecular chain forming the metal extractant do not form a carbamoyl bond and include an unsubstituted hydrocarbon group and a group including and any coordinating functional group in a group G1 of coordinating functional groups below as a coordinating functional group (a) for metal ions to be extracted, or include an unsubstituted hydrocarbon group. The separation recovery method includes mixing an oil phase including the metal extractant and a water phase including plural kinds of metal ions.
Absstract of: US2025243604A1
A method for preparing a chalcogenide/sulfur cathode for an alkali metal secondary battery, where sulfur and/or other chalcogenide and/or mixtures represents both active mass and removable template/porogen, where the content of active mass is defined by the glassy sulfur and porosity is dictated by the crystalline phase template, with the steps of growing a chalcogenide/sulfur wafer, comprising tailored content of glass/polymeric and crystalline allotropes, having a specific presence/gradients/areal distribution of crystalline to glassy/polymeric allotropes, and removing the crystalline allotropes-template/porogen of chalcogenide/sulfur from the chalcogenide/sulfur glass-crystalline wafer by immersion in a solvent, creating a defined porosity within the wafer by etching crystalline phase out from glass-crystalline wafer-like cathode and leaving 3D glassy/polymeric chalcogenide/sulfur in a further incubation stage due the meta-stability of glass/polymer allotrope transition into gamma monoclinic sulfur with trace amounts of glass/polymer allotropes is created, crosslinked with graphene based and or other suitable co-monomer(s) or capping agents.
Absstract of: US2025246607A1
This disclosure provides systems, methods, and apparatus related to battery components and methods of making thereof. In one aspect, a method includes depositing a polymer coating on cathode material particles to be used in a battery. The polymer coating gives the cathode material particles a positive charge. The cathode material particles are mixed with carbon structures. The carbon structures have a negative charge. The cathode material particles become attached to surfaces of the carbon structures.
Absstract of: US2025246608A1
A positive electrode active material includes core particles including lithium cobalt-based composite oxide; and a coating layer located on the surface of the core particle and including a lithium iron phosphate-based compound and aluminum. The positive electrode active material according to some embodiments has long cycle-life characteristics and improved stability even at high voltage. When the positive electrode active material is applied to a rechargeable lithium battery, suitably high initial charge/discharge capacity and efficiency may be achieved under high-voltage operating conditions, and suitably long cycle-life characteristics may be realized under high-voltage and high-temperature conditions.
Absstract of: US2025246757A1
Provided are separator systems for electrochemical systems providing electronic, mechanical and chemical properties useful for a variety of applications including electrochemical storage and conversion. Embodiments provide structural, physical and electrostatic attributes useful for managing and controlling dendrite formation and for improving the cycle life and rate capability of electrochemical cells including silicon anode based batteries, air cathode based batteries, redox flow batteries, solid electrolyte based systems, fuel cells, flow batteries and semisolid batteries. Disclosed separators include multilayer, porous geometries supporting excellent ion transport properties, providing a barrier to prevent dendrite initiated mechanical failure, shorting or thermal runaway, or providing improved electrode conductivity and improved electric field uniformity. Disclosed separators include composite solid electrolytes with supporting mesh or fiber systems providing solid electrolyte hardness and safety with supporting mesh or fiber toughness and long life required for thin solid electrolytes without fabrication pinholes or operationally created cracks.
Absstract of: US2025246749A1
The present disclosure provides a battery module, an apparatus and method for manufacturing said battery module, and a method of disassembling said battery module. The battery module of the present disclosure is comprised of a plurality of pouch battery cells arranged within a structural enclosure, such that the battery module is folded about a plurality of module folding lines to form a folded battery module. Embodiments of the battery module provide improved mechanical strength and stiffness, improved safety, lower weight and cost, and provides further improvements to disassembly and recycling of the battery module.
Absstract of: US2025239658A1
A battery has a positive electrode active material layer, a negative electrode active material layer, and an electrolyte layer, arranged between the positive electrode active material layer and the negative electrode active material layer. And at least one of the positive electrode active material layer, the negative electrode active material layer, and the electrolyte layer contains a Li—Al halide-based molten salt, the Li—Al halide-based molten salt contains a first salt as a main component and a second salt as an added component. The first salt is a Li—Al halide salt at least containing LiAlCl4, and the second salt is an ionic liquid.
Absstract of: KR20250115823A
본 발명은 USB 원격 허브에 관한 것으로서 usb허브 케이블에 의하여 기존 usb허브의 유선 제품을 무선으로 변경함으로서 무선제품의 유선 사용력 증가 밑 보조배터리 형태로 기기의 배터리소모를 별도화 함으로써 전원 공급이 힘든 야외 같은 상황에서 의 전류 소비와 선의 길이가 짧으면 기기와 붙어 있어야 하고 선 길이가 증가하면 선 정리와 선 꼬임의 번거로움 문제점을 해소하도록 함으로써 기존의 전원 공급이 힘든 야외 같은 상황에서 의 전류 소비와 선의 길이가 짧으면 기기와 붙어 있어야 하고 선 길이가 증가하면 선 정리와 선 꼬임의 번거로우며 원해진 수량만큼의 단자수를 원하는데 불가피하게 단자수가 적거나 많은걸 사야할경우가 많아 확장가능한 모델의 필요성이있어 블록과같은 형테로 확장가능 추가 문제점을 해소 하도록 한 것이다.즉 본 발명은, 무선 usb 허브에 있어서 기존 usb허브의 유선 제품을 무선으로 변경함으로서 무선제품의 유선 사용력 증가 밑 보조배터리 형태로 기기의 배터리소모를 별도화한 장치이다 기존 본체와 직접 연결하던 usb케이블을 블루투스 모듈로 대체, 추가적으로 확장 모듈을 탑제 가능하게 제작하였다.한 usb허브 블루투스 모듈, 블록형으로 사용자의 원하는 구조에 맞게 확장 가능�
Absstract of: TW202437578A
A positive electrode active material for a lithium secondary battery, the positive electrode active material having exceptional cycle characteristics at high voltage and being capable of reducing impedance, characterized in that the positive electrode active material is composed of a mixture of aluminum-containing lithium cobalt composite oxide particles and inorganic fluoride particles, aluminum is present in solid solution at least in the interior of the aluminum-containing lithium cobalt composite oxide particles, and the inorganic fluoride particles are formed of MgF2 and a compound containing Al and F.
Absstract of: KR20250115497A
배터리 열폭주 지연용 방염패드가 제공된다. 본 발명의 일 실시예에 따른 배터리 열폭주 지연용 방염패드는 세라믹 원단, 및 상기 세라믹 원단의 양면에 피복되는 무기계 코팅층을 포함하여 구현된다. 이에 의하면, 전기절연성이 뛰어나고, 열폭주가 발생하는 경우에도 인접한 다른 배터리 셀로 열폭주 전이가 발생하는 것을 방지 및 지연시킬 수 있으며, 방염 및 내열강도가 우수해 열폭주 및 화재에 의해서 형상이 변형 및 천공 발생이 방지됨에 따라서 열폭주 전이 지연 성능 및 기계적 강도를 지속적으로 유지시킬 수 있다.
Absstract of: KR20250115862A
본 발명의 이차전지용 테이프 가압장치는 이차전지의 전극탭과 전극 리드의 용접부에 상부 보호테이프와 하부 보호테이프의 부착력을 높이기 위한 테이프 가압장치로서, 상기 이차전지를 이송 방향으로 이송시키도록 마련된 이송부; 그리고 상기 이차전지가 이송되는 중에 상기 전극탭에 부착된 상기 상부 보호테이프와 상기 하부 보호테이프 각각을 가압하도록 마련된 가압 롤러;를 포함한다.
Absstract of: WO2025157230A1
The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. The battery cell comprises a casing and an explosion-proof valve; the casing is provided with an accommodating cavity; the casing comprises a plurality of sidewalls that are used for defining the accommodating cavity; the sidewalls are provided with a pressure relief hole communicated with the accommodating cavity; the explosion-proof valve covers and seals the pressure relief hole; the explosion-proof valve comprises a body and a base; the body is provided with a notch; the body comprises an elastic strain portion; the elastic strain portion is arranged around at least part of the notch; the base surrounds the body, and the base is separately connected to the body and the sidewalls; the elastic strain portion is used for generating elastic deformation in the direction from the base to the notch. According to the present application, the explosion-proof valve comprising the elastic strain portion is arranged in the pressure relief hole on the casing, so as to prevent welding deformation from being generated when welding the explosion-proof valve to the casing, thereby preventing the opening pressure change of the explosion-proof valve, and further improving the safety of the battery cell.
Nº publicación: WO2025157228A1 31/07/2025
Applicant:
SVOLT ENERGY TECH CO LTD [CN]
\u8702\u5DE2\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
Absstract of: WO2025157228A1
A cover plate assembly and a battery cell comprising the cover plate assembly. The cover plate assembly comprises a cover plate (1) and an explosion-proof valve body (2). The explosion-proof valve body (2) comprises a valve plate (20); the valve plate (20) comprises an opening portion (200) and an outer edge portion (201) surrounding the opening portion (200); the outer edge portion (201) is connected to the cover plate (1); the valve plate (20) is provided with a score line (202); the score line (202) has a first end (2020) and a second end (2021); a base (21) surrounds the outer edge portion (201); and the base (21) has a first side surface (210) and a second side surface (211). The residual thickness of the valve plate (20) at the score line (202) is T, the depth of the score line is T1, the distance between the first side surface (210) and the second side surface (211) is W1, and the minimum distance between the score line (202) and the second side surface (211) is W2, satisfying: 0.2≤T/(T+T1)≤0.5, and 0.3≤W2-W1≤5. By optimizing the parameters and dimensions of portions of the valve plate (20), it is ensured that the explosion-proof valve body (2) and the cover plate (1) have sufficient structural strength, thereby improving the overall strength of the battery cell. In addition, when the pressure inside the battery cell reaches a threshold, the opening portion (200) can be opened in a timely manner by means of the score line (202), thereby improving the safety of
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