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SECONDARY BATTERY

Resumen de: WO2026071409A1

The present invention relates to a management apparatus for detecting defects in a busbar fastening state and an inter-cell welding state of a battery pack by using an electrochemical impedance spectroscopy (EIS) technique. The apparatus of the present invention comprises: a measurement current generation unit for applying a set alternating current to a battery pack; a voltage measurement unit for measuring a voltage generated across each battery cell or across both ends of a busbar by means of the current; an impedance calculation unit for calculating impedance by using the measured current and voltage values; and a data output unit for generating a Nyquist or Bode plot on the basis of the calculated impedance, and outputting an impedance variation.

Method for manufacturing negative electrode material for secondary battery and negative electrode material manufactured by the same

Resumen de: EP1000000A1

The invention relates to an apparatus (1) for manufacturing green bricks from clay for the brick manufacturing industry, comprising a circulating conveyor (3) carrying mould containers combined to mould container parts (4), a reservoir (5) for clay arranged above the mould containers, means for carrying clay out of the reservoir (5) into the mould containers, means (9) for pressing and trimming clay in the mould containers, means (11) for supplying and placing take-off plates for the green bricks (13) and means for discharging green bricks released from the mould containers, characterized in that the apparatus further comprises means (22) for moving the mould container parts (4) filled with green bricks such that a protruding edge is formed on at least one side of the green bricks.

POSITIVE ELECTRODE SLURRY COMPOSITION AND POSITIVE ELECTRODE MANUFACTURED USING THE SAME

Resumen de: EP1000000A1

The invention relates to an apparatus (1) for manufacturing green bricks from clay for the brick manufacturing industry, comprising a circulating conveyor (3) carrying mould containers combined to mould container parts (4), a reservoir (5) for clay arranged above the mould containers, means for carrying clay out of the reservoir (5) into the mould containers, means (9) for pressing and trimming clay in the mould containers, means (11) for supplying and placing take-off plates for the green bricks (13) and means for discharging green bricks released from the mould containers, characterized in that the apparatus further comprises means (22) for moving the mould container parts (4) filled with green bricks such that a protruding edge is formed on at least one side of the green bricks.

COMPOSITE PARTICLE ELECTRODE MIXTURE ELECTRODE LAYER BATTERY AND METHOD FOR PRODUCING ELECTRODE LAYER

Resumen de: JP2025113694A

To provide composite particles which can suppress battery resistance.SOLUTION: In the present disclosure, composite particles include a binder and a plurality of active materials containing an Si-element or an Sn-element. The composite particles include a first part containing the active materials and a second part not containing the active materials in the cross-sectional view of the composite particles. The composite particles include the second part in the concentration of not larger than 55%.SELECTED DRAWING: Figure 6

A SHEET CUTTING PREVENTION DEVICE FOR THE ROLLING PROCESS OF LITHIUM BATTERY ELECTRODES

Resumen de: CN223097617U

The utility model discloses a belt breakage prevention device for a lithium battery pole piece rolling process, which comprises a splayed roller, a concave-convex roller, a floating roller, a tension roller and a pinch roller which are sequentially arranged on a rack along the pole piece conveying direction, wherein the concave surface of the concave-convex roller corresponds to a coating area of the pole piece, and the convex surface of the concave-convex roller corresponds to a foil area of the pole piece; the heating assembly is arranged in front of the concave-convex roller and close to the concave-convex roller, and the heating end of the heating assembly is located below the foil area of the pole piece. According to the utility model, the heating assembly is additionally arranged to heat the foil material area before stretching, the original cold stretching is changed into hot stretching, the stretching tension can be reduced by 70%, the foil material area fracture caused by large tension is prevented, the stretching of the foil material area can be completed no matter the elongation percentage of a conventional pole piece is about 7 per thousand or the large elongation percentage of a high-pressure dense pole piece is more than 15 per thousand, and the production efficiency is greatly improved. And the pole piece can be continuously wound without being broken.

이온 전도성 물질, 고체 전해질 및 전지

Resumen de: WO2025033470A1

One aspect of the present disclosure provides an ion conductive substance which contains an alkali metal element, a divalent metal element D, a trivalent or higher-valent metal element M, and a halogen element, and has a cubic crystal structure, wherein in the X-ray diffraction chart obtained by measurement using CuKα rays at 25°C, the ratio of the peak height of the diffraction peak A to the peak height of the diffraction peak B is 0.80-2.50, where the diffraction peak B is the diffraction peak that has a maximum peak height observed within the 2θ angle range of 45-53°, and the diffraction peak A is the diffraction peak that has a maximum peak height observed within the 2θ angle range of 33-38°.

극판, 배터리셀, 배터리, 전기기기 및 극판의 제조 방법

Resumen de: WO2025030850A1

Provided in the embodiments of the present application are an electrode sheet, a battery cell, a battery, an electric device, and a preparation method for the electrode sheet, which can effectively ameliorate the problem of powder shedding during a cutting process of an electrode sheet to be cut, thereby reducing the risk of an internal short circuit occurring in a battery cell caused by overlapping between a positive electrode sheet and a negative electrode sheet, and thus improving the yield of the battery cell. The electrode sheet comprises: a first current collector, which comprises a first body and a tab region connected to an edge of the first body, the first body comprising a coated region and an edge region; and a first electrically conductive layer disposed on a surface of the coated region, wherein the thickness of the electrode sheet in the edge region is less than that of the electrode sheet in the coated region.

비수전해액 및 비수전해액 전지

Resumen de: WO2025028450A1

A nonaqueous electrolyte solution containing (I) a compound represented by general formula (1) set forth in the description, (II) at least one compound selected from the group consisting of compounds (2)-(5) set forth in the description, (III) a solute, and (IV) a nonaqueous organic solvent; and a nonaqueous electrolyte battery including the nonaqueous electrolyte solution.

비수전해액 및 그것을 사용한 비수전해액 전지

Resumen de: WO2025028449A1

The present disclosure provides: a nonaqueous electrolyte solution containing (I) at least one sulfonic acid anhydride represented by general formula (1) set forth in the description, (II) at least one compound selected from the group represented by "2", "3", "4", "5", "6", and "7" set forth in the description, (III) a solute, and (IV) a nonaqueous organic solvent; and a nonaqueous electrolyte battery including at least a positive electrode, a negative electrode, a separator, and said nonaqueous electrolyte solution.

전고체 이차 전지용 음극 및 이를 포함하는 전고체 이차 전지

Resumen de: JP2025019588A

To provide a negative electrode for an all-solid-state secondary battery which is unlikely to cause a short circuit even when rapidly charged and which can maintain a high battery capacity even when the battery is repeatedly charged and discharged.SOLUTION: In an all-solid-state secondary battery negative electrode 20, a negative electrode mixture layer 22 includes a first layer 221 forming a surface of the negative electrode mixture layer facing a negative electrode current collector 21, and a second layer 222 forming a surface of the negative electrode mixture layer opposite the first layer, and the first layer and the second layer each contain a negative electrode active material, a carbon material, and a binder, and the binder content A in the first layer is 5 pts.mass or more and 20 pts.mass or less with respect to 100 pts.mass of the total content of the negative electrode active material and the carbon material in the first layer, and the binder content B in the second layer is 1 pt.mass or more and 10 pts.mass or less with respect to 100 pts.mass of the total content of the negative electrode active material and the carbon material in the second layer, the content A is greater than the content B, and the difference between the content A and the content B is in the range of 4 pts.mass or more and 19 pts.mass or less.SELECTED DRAWING: Figure 4

비수계 이차 전지 전극용 바인더 조성물, 비수계 이차 전지 전극용 슬러리 조성물, 비수계 이차 전지용 전극 및 비수계 이차 전지

Resumen de: CN121175823A

The purpose of the present invention is to provide a binder composition for a non-aqueous secondary battery electrode, said binder composition being capable of forming an electrode for a non-aqueous secondary battery, said electrode having excellent flexibility and effectively suppressing defects in the non-aqueous secondary battery. The present invention is a binder composition for nonaqueous secondary battery electrodes, which contains: a particulate polymer that contains a polymer that contains an aromatic vinyl monomer unit and a conjugated diene monomer unit; when the surface of an adhesive film formed using the adhesive composition for nonaqueous secondary battery electrodes is pressed to a depth of 300 nm by an indenter for a nanoindentation test, the adhesive film has a maximum press-in load of 100 nN or more and an elastic recovery amount of 120 nm or more and 200 nm or less.

LITHIUM SECONDARY BATTERY

Resumen de: WO2025089789A1

The present invention provides a lithium secondary battery comprising: a negative electrode including a negative electrode current collector and a negative electrode active material layer formed on the negative electrode current collector; a positive electrode; an electrolyte including a lithium salt, an organic solvent, and an additive, wherein the negative electrode active material layer includes Si as a negative electrode active material, the organic solvent includes a fluoroethylene carbonate, and Z has a value of 0.1-0.2. X is the content (wt%) of Si on the basis of the total weight of the negative electrode active material in the negative electrode active material layer, and Y is the content (wt%) of the fluoroethylene carbonate on the basis of the total weight of the electrolyte after the activation of the lithium secondary battery.

POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY USING THE SAME

Resumen de: JP2025074007A

To provide a method of preparing a positive electrode active material which is advantageous in terms of energy density by having a bimodal particle size distribution including small and large particles.SOLUTION: A method of preparing a positive electrode active material for a lithium secondary battery comprises: (a) mixing a lithium-containing raw material, an iron-containing precursor, a dopant-containing raw material, a sodium-containing raw material and a carbon-based compound to prepare slurry; (b) pulverizing particles in the slurry; and (c) heat-treating the pulverized particles to obtain a lithium composite phosphorus oxide, where the dopant is at least one selected from the group consisting of Ag, Al, As, Au, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cu, Ga, Hf, In, K, La, Mg, Mo, Nb, Nd, Ni, Os, Pd, Pr, Pt, Rh, Ru, Si, Sm, Sn, Sr, Ta, Ti, V, W, Y, Zn, and Zr.SELECTED DRAWING: Figure 2

덮개체 및 그 제조 방법 그리고 밀폐형 전지

Resumen de: WO2025084298A1

Provided is a lid body for a sealed battery, wherein the lid body can reliably prevent electrolyte solution leakage and the intrusion of, e.g., moisture and so forth, from the outside, while having a relatively simple structure with a small number of components.　This lid body functions to close a battery container having an opening, and comprises: terminal members 1, 2; a sealing plate 3 having installation holes 3b in which these terminal members are installed; and a sealing material 4 that seals the terminal member installed in the installation hole 3b. The sealing material contains a polyarylene sulfide resin and contains an acrylate ester. The terminal member has a hydroxyl group-containing film on an outer peripheral surface; the sealing plate has a hydroxyl group-containing film on an interior wall surface of the installation hole; and the terminal member is sealed to the installation hole of the sealing plate via the sealing material.

리튬-황 배터리용 가넷-전자쌍 공여체 하이브리드 전해질을 안정화하는 방법

Resumen de: WO2024229230A2

A hybrid electrolyte comprises: (i) a first electrolyte having a first surface and an opposed second surface, wherein the first electrolyte comprises a solid state electrolyte material comprising an oxide, wherein the first surface is an acid-treated surface; and (ii) a second electrolyte comprising a liquid electrolyte, wherein the liquid electrolyte comprises an alkali metal salt and a solvent selected from the group consisting of electron pair donor solvents, and solvent mixtures including at least one electron pair donor solvent and at least one glyme solvent. The oxide can be a doped or undoped LLZO electrolyte material, and the acid can be selected from H3PO4 and HCI.

고내열성 세라믹 코팅의 전지 분리막 및 그 제조방법

Resumen de: EP1000000A1

The invention relates to an apparatus (1) for manufacturing green bricks from clay for the brick manufacturing industry, comprising a circulating conveyor (3) carrying mould containers combined to mould container parts (4), a reservoir (5) for clay arranged above the mould containers, means for carrying clay out of the reservoir (5) into the mould containers, means (9) for pressing and trimming clay in the mould containers, means (11) for supplying and placing take-off plates for the green bricks (13) and means for discharging green bricks released from the mould containers, characterized in that the apparatus further comprises means (22) for moving the mould container parts (4) filled with green bricks such that a protruding edge is formed on at least one side of the green bricks.

전기화학 장치 및 전기 사용 장치

Resumen de: WO2025112068A1

An electrochemical apparatus and an electrical device. The electrochemical apparatus comprises a housing, an electrode assembly and a bonding assembly. The housing comprises a first side wall, and the electrode assembly is arranged in the housing and comprises a first side surface adjacent to the first side wall, the first side surface comprising a second area, a first area and a third area which are successively arranged in a first direction. The bonding assembly is located between the housing and the electrode assembly, and comprises a first surface and a second surface which are opposite to each other; the first surface comprises a first bonding region bonded to the first side wall; the second surface comprises a second bonding region bonded to the second area, a third bonding region bonded to the third area, and a first non-bonding region located between the second bonding region and the third bonding region. In a second direction, the projection of the first bonding region overlaps with the first non-bonding region, the second direction being the direction in which the first side wall is opposite to the first side surface. Eliminating bonding between the bonding assembly and the first area helps to reduce the risk of damage to the electrode assembly.

리튬 배터리 및 동력 차량

Resumen de: WO2025025917A1

The lithium battery comprises a positive electrode plate, a negative electrode plate and an electrolyte. The positive electrode plate comprises a positive electrode current collector and a positive electrode material layer provided on the surface of at least one side of the positive electrode current collector. A positive electrode active material of the positive electrode material layer comprises LiFe1-aMnaPO4 and a lithium transition metal oxide. The mass of LiFe1-aMnaPO4 accounts for X1％ of the total mass of LiFe1-aMnaPO4 and the lithium transition metal oxide, 0 ＜ X1 ＜ 100, and 0 ≤ a ≤ 0.8. The electrolyte comprises vinylene carbonate with a mass ratio of A%. The lithium battery satisfies: 0 ＜ 100α/X1 ≤ 600 and 0 ≤ DCIR×C0×A×X1 ≤ 30, wherein C0 is the discharge capacity at 0.33 C of the lithium battery at 25ºC; DCIR is the direct current internal resistance of the lithium battery measured based on C0; and α is the Fe content in a negative electrode material of the negative electrode plate of the lithium battery after cycled for 500 times at 1C0 at 45ºC.

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME

Resumen de: KR20210120558A

The present invention relates to a battery module for securing insulation performance and a battery pack including the same. The battery module according to an embodiment of the present invention includes: a battery cell stack in which a plurality of battery cells are stacked; a module frame for accommodating the battery cell stack; and first and second thermally conductive resin layers spaced apart from each other between the bottom unit of the module frame and the battery cell stack, wherein a first insulating coating layer is formed between the first thermally conductive resin layer and the second thermally conductive resin layer.

BATTERY PACK STRUCTURE AND VEHICLE SYSTEM COMPRISING FIREPROOF MEMBER

Resumen de: KR20240020503A

Disclosed are a battery pack structure including a fireproof member and a vehicle system. According to one embodiment of the present application, the battery pack structure comprises: a battery module; and at least one housing accommodating the battery module. A fireproof member for blocking heat or flame is attached to an inner surface of the housing. The fireproof member is formed of a material whose volume expands at a predetermined temperature or higher. When a fire occurs in the battery module and the temperature inside the housing rises to a predetermined temperature or higher, the fireproof member expands.

BATTERY MODULE

Resumen de: KR20220160717A

Provided is a battery module including: a battery sub-module including one or more battery cells; and a barrier disposed to face one side of the battery sub-module, wherein the barrier includes: a rigid member supporting the battery sub-module; and a heat absorbing member accommodated in the rigid member to absorb heat generated from one or more battery cells.

Electrolyte Solution Additive Electrolyte Solution For Battery And Secondary Battery Comprising The Same

Resumen de: KR20260043578A

본 발명은 전해액 첨가제, 이를 포함하는 전해액 및 이차전지에 관한 것으로, 본 발명에 따르면 하이니켈, Si음극, LFP 전지, LMR(리튬망간리치) 전지 또는 코발트 프리 전지를 비롯한 다양한 리튬이차전지 양음극에 안정한 피막을 형성하여 전지 내부의 부반응을 억제하고 충방전 저항이 낮아 충전 효율 및 출력이 향상될 수 있고, 고온 조건에서 장시간 보관하더라도 전지의 저항 증가가 억제될 수 있으며, 전해액 성분의 분해에 의한 가스 발생 또한 현저하게 억제되어 장기 수명 및 고온 용량 유지율이 우수한 동시에 저온 성능과 출력이 향상되고, 전지 양극의 불안정성에 의한 부반응 산물 중 불산을 효과적으로 scavenging하여 전해액의 산도 증가 및 양극의 전이금속이온 용출을 억제하여 전지 특성 및 수명이 탁월한 이차전지를 제공하는 효과가 있다.

Electrolyte for a lithium metal battery and a lithium metal battery containing the same

Resumen de: KR20260043212A

본 발명은 리튬염; 알킬디니트릴 화합물 및 하이드로플루오르에테르를 포함하는 공용매; 및 플루오로에틸렌 카보네이트 첨가제;를 포함하는 리튬 금속 전지용 전해액에 관한 것으로, 일 양태에 따른 전해액을 채용한 리튬 금속 전지는 넓은 온도 범위 및 고전압에서 우수한 안정성 및 수명 특성을 구현할 수 있다.

BATTERY MANAGEMENT APPARATUS AND BATTERY MANAGEMENT METHOD

Resumen de: KR20260042835A

본 개시의 배터리관리방법은 복수의 배터리셀을 포함하는 배터리팩에 대한 충전 또는 방전을 수행하는 사이클 동안 복수의 배터리셀 중 선택배터리셀의 전압, 전류 및 온도를 확인하는 단계, 복수의 저항테이블 중에서, 전압, 전류 및 온도에 대응되는 저항테이블을 선택하는 단계, 및 전압의 변화량 및 전류에 대응되는 선택배터리셀의 사이클에 대한 저항, 및 선택된 저항테이블에 포함된 저항에 기초하여, 선택배터리셀의 불량 여부를 확인하는 단계를 포함할 수 있다.

MOF - Structural battery comprising a MOF-derived hierarchically porous carbon-metal composite anode structure

Nº publicación: KR20260043074A 31/03/2026

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