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SLURRY RECOVERY METHOD

NºPublicación:  WO2025200260A1 02/10/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
SICHUAN CONTEMPORARY AMPEREX TECH LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8,
\u56DB\u5DDD\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
CN_120714864_PA

Resumen de: WO2025200260A1

The present application provides a slurry recovery method, and belongs to the technical field of battery manufacturing. The slurry recovery method comprises: measuring the viscosity of an electrode slurry utilized during an electrode coating process; and in response to the viscosity of the electrode slurry being not greater than a viscosity threshold value, performing slurry preparation on the electrode slurry according to a first slurry preparation process to obtain a slurry that can be used again, or in response to the viscosity of the electrode slurry being greater than the viscosity threshold value, performing slurry preparation on the electrode slurry according to a second slurry preparation process to obtain a slurry that can be used again, the second slurry preparation process being different from the first slurry preparation process.

BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

NºPublicación:  WO2025200239A1 02/10/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_120727997_PA

Resumen de: WO2025200239A1

Disclosed in an embodiment of the present application are a battery cell, a battery, and an electrical device. The battery cell comprises an electrode assembly and an insulating part for wrapping at least part of the electrode assembly, wherein the insulating part comprises a first insulating structure and a second insulating structure, the first insulating structure being of a hollow structure with an opening at an end, the hollow structure being used for accommodating the electrode assembly, and the second insulating structure being configured to cover the opening of the first insulating structure. By means of the battery cell, the battery and the electrical device of the embodiment of the present application, the reliability of the battery cell can be improved.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

NºPublicación:  WO2025200815A1 02/10/2025
Solicitante: 
NINGDE AMPEREX TECH LIMITED [CN]
\u5B81\u5FB7\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
CN_118352635_A

Resumen de: WO2025200815A1

An electrochemical device and an electronic device. The electrochemical device comprises an electrolyte, a positive electrode, a negative electrode and a separator, wherein the electrolyte comprises a first additive; the first additive is a mixed additive; and the mixed additive comprises the following additives at the following mass ratios: (1) a cyclic compound containing a carbonate group, LiBF4 and LiPO2F2 at a ratio of 1:0.01:0.01 to 1:20:30; and/or (2) a cyclic compound containing a sulfonic acid group, LiBF4 and LiPO2F2 at a ratio of 1:0.05:0.01 to 1:5:20. Based on the mass of the electrolyte, the mass percentage content of the mixed additive is x%, wherein 0.04≤x≤10.5. The positive electrode comprises a positive electrode current collector. The elongation at break of the positive electrode current collector is A%, the elongation at break of the separator is B%, and 5≤B/A≤150. The above configuration enables the electrochemical device to have an increased pass rate in nail penetration tests, and therefore the safety performance of the electrochemical device is improved.

DISCHARGING CONTROL METHOD FOR VEHICLE CHARGING SYSTEM, DISCHARGING CONTROL DEVICE, AND VEHICLE

NºPublicación:  WO2025201149A1 02/10/2025
Solicitante: 
BYD COMPANY LTD [CN]
\u6BD4\u4E9A\u8FEA\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_120716486_PA

Resumen de: WO2025201149A1

A discharging control method for a vehicle charging system. The vehicle charging system can be used for discharging, so as to provide power replenishment for a vehicle being charged. When the vehicle charging system acquires a discharging signal, a communication converter switches to a power supply device communication controller mode to acquire charging information of the vehicle being charged, and the vehicle being charged is charged on the basis of the charging information. Further provided are a discharging control device and a vehicle. By means of the discharging control method for a vehicle charging system, electric vehicles that have broken down halfway or are in extreme environments can be rescued.

CTP BATTERY CASE AND CTP BATTERY SYSTEM

NºPublicación:  WO2025200238A1 02/10/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
DE_202025100756_PA

Resumen de: WO2025200238A1

A CTP battery case and a CTP battery system. The CTP battery case comprises a bottom plate (1) and a plurality of side plates (2), wherein the side plates (2) are connected to the bottom plate (1), and adjacent side plates (2) are connected to each other to form a mounting space (3); an adhesive bonding groove (4) is formed in the side of the bottom plate (1) close to the mounting space (3); an insulating layer (5) covers the adhesive bonding groove (4), and the insulating layer (5) is provided with a through hole (6) adapted to an opening of the adhesive bonding groove (4); an adhesive bonding member (7) is provided in the adhesive bonding groove (4), and the adhesive bonding member (7) passes through the through hole (6); the insulating layer (5) isolates the bottom plate (1) from a battery cell (10); the adhesive bonding member (7) is bonded to the battery cell (10); and the adhesive bonding member (7) is a structural member made of an insulating material.

SECONDARY BATTERY

NºPublicación:  WO2025206057A1 02/10/2025
Solicitante: 
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

Resumen de: WO2025206057A1

This secondary battery includes: an electrode group in which a positive electrode, a negative electrode, and a separator are wound; an electrolyte; a bottomed cylindrical outer can that accommodates the electrode group and the electrolyte; a sealing plate that is disposed in the opening of the outer can with an insulating gasket interposed therebetween; a positive electrode lead that connects the positive electrode and the sealing plate; and a negative electrode lead that connects the negative electrode and the outer can. The negative electrode includes a negative electrode current collector, and a negative electrode mixture layer supported on the negative electrode current collector. In the outermost periphery of the negative electrode, the negative electrode mixture layer faces the inner surface of the outer can, and the negative electrode lead is disposed further to the inner peripheral side than the positive electrode lead. When the radius of the electrode group is R, the positive electrode lead is disposed within a region whose distance in the radial direction from the winding axis of the electrode group is less than 0.9 R. In an external short circuit, a heat generation amount Q1 of the positive electrode lead and a heat generation amount Q2 of the negative electrode lead satisfy the relationship Q1 < Q2.

BATTERY

NºPublicación:  WO2025204494A1 02/10/2025
Solicitante: 
MURATA MFG CO LTD [JP]
\u682A\u5F0F\u4F1A\u793E\u6751\u7530\u88FD\u4F5C\u6240

Resumen de: WO2025204494A1

The present invention improves charge/discharge characteristics. This battery has a positive electrode, a negative electrode, and an electrolyte layer that contains a solid electrolyte. The negative electrode comprises: a negative electrode current collector layer; a negative electrode active material layer residing on the electrolyte layer side with respect to the negative electrode current collector layer; and a negative electrode intermediate layer that is in contact with the negative electrode current collector layer and the negative electrode active material layer. The solid electrolyte contains S. The negative electrode current collector layer contains Cu. The negative electrode active material layer contains Si. The negative electrode intermediate layer contains Cu and Si. The molar ratio of Si to Cu in the negative electrode intermediate layer is 0.13-1.20.

SIGNAL ACQUISITION ASSEMBLY OF BATTERY CELL AND BATTERY PACK

NºPublicación:  WO2025200195A1 02/10/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_222168644_U

Resumen de: WO2025200195A1

A signal acquisition assembly (1) of a battery cell (20) and a battery pack. The signal acquisition assembly (1) comprises a frame (10), a circuit board (11), a plurality of pin-type electrical connectors (12), and a plurality of signal acquisition lines (13); the frame (10) has a first side surface (101) and a second side surface (102) opposite to each other in a first direction; the circuit board (11) is provided with a plurality of insertion structures (110), each pin-type electrical connector (12) comprises a first connection portion (1210) and a pin-type insertion portion (1220), the pin-type insertion portions (1220) of the plurality of pin-type electrical connectors (12) are inserted into the plurality of insertion structures (110) in one-to-one correspondence, and the pin-type insertion portions (1220) are electrically connected to a battery management circuit (113) carried by the circuit board (11); second connection portions (130) of the plurality of signal acquisition lines (13) are correspondingly connected to the first connection portions (1210) of the plurality of pin-type electrical connectors (12); and an acquisition portion (131) of each signal acquisition line (13) is configured to acquire a signal of the battery cell (20).

CATHODE ACTIVE MATERIAL, POSITIVE ELECTRODE, SODIUM-ION BATTERY, BATTERY ASSEMBLY, AND ELECTRIC SYSTEM

NºPublicación:  WO2025200436A1 02/10/2025
Solicitante: 
BYD COMPANY LTD [CN]
\u6BD4\u4E9A\u8FEA\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_120727737_PA

Resumen de: WO2025200436A1

A cathode active material, a positive electrode, a sodium-ion battery, a battery assembly, and an electric system. The cathode active material satisfies: the cross-sectional filling rate of the cathode active material ranging from 75% to 99%; the tap density of the cathode active material ranging from 1.5 g/cm3 to 2.5 g/cm3; and the value of the particle size distribution spread K of the cathode active material ranging from 0.9 to 3.0, wherein K=(D90-D10)/D50. By means of making the tap density, cross-sectional filling rate and particle distribution range of the cathode active material be within the above-mentioned ranges, the compaction density of a positive electrode can be improved, thereby increasing the volumetric energy density of a battery.

LIQUID COOLING SYSTEM WITH DIRECT COOLING CONNECTION

NºPublicación:  WO2025200273A1 02/10/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_222126698_U

Resumen de: WO2025200273A1

Disclosed in the present application is a liquid cooling system with direct cooling connection, comprising: a liquid cooling plate assembly, which comprises two or more liquid cooling plate branches, each of the liquid cooling plate branches being provided with a quick plug-in socket; and a direct-cooling type liquid cooling pipeline, which comprises an L-shaped quick plug-in connector, at least one T-shaped quick plug-in connector and a hydraulic connector which are sequentially connected by means of a communication pipe, the quick plug-in socket of each of the liquid cooling plate branches being plugged with the L-shaped quick plug-in connector or the T-shaped quick plug-in connector so as to connect the liquid cooling plate branch to the direct-cooling type liquid cooling pipeline.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, SODIUM ION BATTERY, BATTERY ASSEMBLY AND ELECTRICAL SYSTEM

NºPublicación:  WO2025200434A1 02/10/2025
Solicitante: 
BYD COMPANY LTD [CN]
\u6BD4\u4E9A\u8FEA\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_120727738_PA

Resumen de: WO2025200434A1

A positive electrode active material, a positive electrode, a sodium ion battery, a battery assembly and an electrical system, wherein the positive electrode active material meets: the cross-sectional filling rate α of the positive electrode active material is 75%-99%, and the post-compression rebound rate ε of the positive electrode active material is 3%-10%; the post-compression rebound rate ε=1-(the compaction density after rebound/the maximum compaction density); the cross-sectional filling rate α and the post-compression rebound rate ε of the positive electrode active material satisfy: 8≤α/ε≤30. The positive electrode active material has high energy density and good cycle performance.

ELECTROCHEMICAL DEVICE

NºPublicación:  WO2025205316A1 02/10/2025
Solicitante: 
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

Resumen de: WO2025205316A1

This electrochemical device comprises a positive electrode, a negative electrode, and a lithium ion-conductive electrolyte, said negative electrode being provided with a negative electrode current collector and a negative electrode material layer supported on the negative electrode current collector. The negative electrode material layer comprises a negative electrode active material that undergoes reversible doping with lithium ions. The negative electrode active material comprises a carbon material. The negative electrode material layer has a coated region. The surface of the negative electrode material layer is divided into: a first region, which contains a region in proximity to a connection region with a negative electrode lead terminal; and a second region outside the first region. A composition ratio X1 of lithium fluoride to lithium carbonate contained in the coated region in the first region of the negative electrode material layer is higher than a composition ratio X2 of lithium fluoride to lithium carbonate contained in the coated region in the second region.

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

NºPublicación:  WO2025206837A1 02/10/2025
Solicitante: 
POSCO FUTURE M CO LTD [KR]
(\uC8FC)\uD3EC\uC2A4\uCF54\uD4E8\uCC98\uC5E0

Resumen de: WO2025206837A1

A cathode active material for a lithium secondary battery according to the present invention is a single-crystal cathode active material for a lithium secondary battery, the cathode active material having a form in which 1 to 20 single particles are aggregated, wherein the single particles may satisfy equation 1 in the present specification.

A CURRENT COLLECTOR PLATE FOR A SECONDARY BATTERY CELL AND A METHOD OF ASSEMBLY THEREOF

NºPublicación:  WO2025203053A1 02/10/2025
Solicitante: 
OLA ELECTRIC MOBILITY LTD [IN]
OLA ELECTRIC MOBILITY LIMITED

Resumen de: WO2025203053A1

The disclosure herein relates to a current collector plate for a secondary cylindrical battery cell. The current collector plate (200) is adapted to be accommodated on a first electrode tab portion (102) of an electrode assembly (100A) of the cell (100), and includes an outer portion (202) disposed at a first plane (P1), adapted to be positioned abutting with the first electrode tab portion, and an inner portion (204) disposed concentrically inwards of the outer portion at a second plane (P2), adapted to be disposed at a gap (G) from the outer portion. The inner portion has a diameter at least half of the diameter of the cell. The current collector plate provides better contact with an electrode tab portion of the cell and ease in opening of the venting portion.

SOLID-STATE BATTERY

NºPublicación:  WO2025204666A1 02/10/2025
Solicitante: 
HONDA MOTOR CO LTD [JP]
\u672C\u7530\u6280\u7814\u5DE5\u696D\u682A\u5F0F\u4F1A\u793E

Resumen de: WO2025204666A1

A problem addressed by this disclosure is to provide a solid-state battery whereby high-pressure pressing and thinning of a solid electrolyte layer is possible and durability can be improved. An embodiment for solving said problem is a solid-state battery structured so as to have a negative electrode layer, a solid electrolyte layer, and a positive electrode layer stacked in the stated order, wherein the solid electrolyte layer comprises one or more layers, and the limit distortion of at least one of those layers is 0.5% or more.

SOLID ELECTROLYTE AND SECONDARY BATTERY

NºPublicación:  WO2025204813A1 02/10/2025
Solicitante: 
MURATA MFG CO LTD [JP]
\u682A\u5F0F\u4F1A\u793E\u6751\u7530\u88FD\u4F5C\u6240

Resumen de: WO2025204813A1

The present invention improves charge and discharge characteristics while improving water resistance. Provided is a solid electrolyte having a composition formula represented by LixSn1-wZwSy, wherein Z is an element including at least Si, and the relationships 3.0≤x≤5.0, 3.0≤y≤5.0, and 0

BATTERY PACK AND VEHICLE COMPRISING BATTERY PACK

NºPublicación:  WO2025206548A1 02/10/2025
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
\uC8FC\uC2DD\uD68C\uC0AC \uC5D8\uC9C0\uC5D0\uB108\uC9C0\uC194\uB8E8\uC158

Resumen de: WO2025206548A1

A battery pack according to one embodiment of the present invention comprises: a plurality of battery cells; a cell frame for accommodating the plurality of battery cells; a first filling member filled between the plurality of battery cells in the cell frame; and a second filling member filled in the cell frame so as to be in contact with the first filling member.

ELECTRODE ASSEMBLY, SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

NºPublicación:  WO2025206543A1 02/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
\uC0BC\uC131\uC5D0\uC2A4\uB514\uC544\uC774 \uC8FC\uC2DD\uD68C\uC0AC

Resumen de: WO2025206543A1

The present disclosure relates to a secondary battery and a method for manufacturing a secondary battery. An electrode assembly according to one embodiment of the present disclosure for achieving the technical objective comprises: a first electrode; a second electrode; and a separator disposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode includes: a polymer layer; a first metal layer disposed on a first surface of the polymer layer; a second metal layer disposed on a second surface opposite to the first surface; and a multilayer substrate including an active material layer applied to the first metal layer and the second metal layer, wherein the multilayer substrate may include a first portion where the polymer layer is filled between the first metal layer and the second metal layer, and a second portion where the polymer layer is not filled.

BATTERY CELL AND BATTERY PACK

NºPublicación:  WO2025200367A1 02/10/2025
Solicitante: 
SUNWODA MOBILITY ENERGY TECH CO LTD [CN]
\u6B23\u65FA\u8FBE\u52A8\u529B\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_118263634_PA

Resumen de: WO2025200367A1

A battery cell (100) and a battery pack. The battery cell (100) comprises: a casing (110); an electrode assembly (120), which is accommodated in the casing (110); a first current collector disc (130), which is arranged at one end of the electrode assembly (120) in a first direction (Z) and connected to the electrode assembly (120); and an end cover (140), which is arranged at one end of the casing (110) in the first direction (Z) and connected to the casing (110). The end cover (140) comprises: a main body part (141), a circular electrolyte injection hole (1411) being formed in the main body part (141); an explosion-proof part (142), which is arranged on the main body part (141) and surrounding the periphery of the electrolyte injection hole (1411); and a groove (1431), which is arranged between the electrolyte injection hole (1411) and the explosion-proof part (142) on the main body part (141) and has a groove opening facing away from the outer side of the electrode assembly (120). The groove (1431) has a width size of L mm in the radial direction (X) of the electrolyte injection hole (1411), the diameter of the explosion-proof part (142) is D1 mm, and the diameter of the electrolyte injection hole (1411) is D2 mm, wherein 1≤L, L=K*(D1-D2)/2, and 0.1≤k≤0.7. The safety performance of the explosion-proof part (142) is ensured, thus improving the valve opening stability of the battery cell (100), and finally improving the safety performance of the battery cell (100).

BATTERY PACK AND ELECTRIC DEVICE

NºPublicación:  WO2025200100A1 02/10/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
CN_222126821_U

Resumen de: WO2025200100A1

A battery pack, comprising: a CCS assembly (1); a battery case (2), wherein the CCS assembly (1) is mounted and fixed in the battery case (2); and a sealant component (3), wherein the sealant component (3) is arranged between the battery case (2) and the CCS assembly (1), and the sealant component (3) extends in the peripheral direction of the CCS assembly (1) to seal an assembly gap between the CCS assembly (1) and the battery case (2).

IRON PHOSPHATE HAVING LOW SULFUR CONTENT AND HIGH IRON-PHOSPHORUS RATIO, PREPARATION METHOD THEREFOR, AND USE THEREOF

NºPublicación:  WO2025200089A1 02/10/2025
Solicitante: 
HUBEI HONGRUN HIGH TECH NEW MAT CO LTD [CN]
\u6E56\u5317\u8679\u6DA6\u9AD8\u79D1\u65B0\u6750\u6599\u6709\u9650\u516C\u53F8
CN_118183658_PA

Resumen de: WO2025200089A1

The present application relates to the technical field of battery materials, and provides iron phosphate having low sulfur content and a high iron-phosphorus ratio, a preparation method therefor, and a use thereof. The preparation method for the iron phosphate having low sulfur content and a high iron-phosphorus ratio comprises: providing amorphous iron phosphate; adding water and phosphoric acid into the amorphous iron phosphate for slurrying treatment, and then heating and aging to obtain an aged slurry; carrying out slurry washing and filter pressing on the aged slurry to obtain a first filter cake; adding water and a first pH regulator into the first filter cake for slurry washing to obtain a first slurry having a pH value range of 3.0-5.0, and carrying out filter pressing on the first slurry to obtain a second filter cake; and rinsing, drying and calcining the second filter cake to obtain iron phosphate having low sulfur content and a high iron-phosphorus ratio. The present application facilitates preparation of iron phosphate having low sulfur content, a high iron-phosphorus ratio, and a large specific surface area. The iron phosphate can be used for preparing lithium iron phosphate having good electrochemical performance, and the lithium iron phosphate can be further used for preparing a positive electrode sheet and a secondary battery having good electrochemical performance.

SEPARATOR, ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

NºPublicación:  WO2025201063A1 02/10/2025
Solicitante: 
NINGDE AMPEREX TECH LIMITED [CN]
\u5B81\u5FB7\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
CN_117954791_PA

Resumen de: WO2025201063A1

Disclosed in the present application are a separator, an electrochemical device and an electronic device. The separator comprises a base membrane and a coating, wherein the coating comprises a first coating and a second coating. The melting point of the first coating is A1, and the melting point of the second coating is A2, wherein 80°C≤(A2-A1)≤140°C, and A1 satisfies: 30°C≤A1≤90°C. The first coating comprises a water-based bonding layer, wherein the water-based bonding layer contains polymer particles I arranged in a single layer, the polymer particles I are formed by polymerizing at least two of a monomer 1, a monomer 2 or a monomer 3 by means of a polymerization reaction, the monomer 1 comprises an aromatic ethylene compound, the monomer 2 comprises an acrylate compound, and the monomer 3 comprises an alkene compound. The second coating is a porous structure layer. By configuring the separator of the present application into an electrochemical device, the cycle performance of the electrochemical device can be improved, and lithium plating can also be ameliorated.

NOVEL MOF MATERIAL AND USE THEREOF IN NEGATIVE ELECTRODE OF LITHIUM ION BATTERY

NºPublicación:  WO2025201289A1 02/10/2025
Solicitante: 
SOOCHOW MOFS SCIENCE AND TECH LTD [CN]
\u82CF\u5DDE\u82BC\u5B5A\u58EB\u79D1\u6280\u6709\u9650\u516C\u53F8
CN_118063786_PA

Resumen de: WO2025201289A1

Disclosed in the present invention are a novel MOF material and the use thereof in a negative electrode of a lithium ion battery, which belong to the field of lithium ion batteries. Said MOF material is prepared by carrying out a self-assembly coordination reaction on tris(4-(pyridin-4-yl)phenyl)amine and copper nitrate The metal organic framework material (MOF) provided by the present invention will generate a large amount of pores during self-assembly, and thus can store a large amount of lithium ions; in addition, all the pores are mutually and tightly connected, so that ions and electrons can be conducted more quickly. Compared with other MOF negative electrode materials, the novel MOF material has longer cycle life and better stability.

ELECTROCHEMICAL CELL

NºPublicación:  WO2025206478A1 02/10/2025
Solicitante: 
SAMSUNG SDI CO LTD [KR]
\uC0BC\uC131\uC5D0\uC2A4\uB514\uC544\uC774\uC8FC\uC2DD\uD68C\uC0AC

Resumen de: WO2025206478A1

An electrochemical cell comprises a positive electrode, a negative electrode, a first separator between the positive electrode and the negative electrode, and first and second reference electrodes disposed between the positive electrode and the first separator. The first reference electrode is configured to measure the potential of the negative electrode during discharge, and the second reference electrode is configured to measure the potential of the negative electrode during charge.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Nº publicación: WO2025200762A1 02/10/2025

Solicitante:

NINGDE AMPEREX TECH LIMITED [CN]
\u5B81\u5FB7\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8

CN_119764334_A

Resumen de: WO2025200762A1

A secondary battery and an electronic device. The secondary battery comprises a positive electrode, a negative electrode and an electrolyte. The positive electrode comprises a positive electrode current collector and a positive electrode material layer, wherein the positive electrode material layer comprises a first material layer and a second material layer; the second material layer is arranged between the positive electrode current collector and the first material layer; the first material layer comprises lithium cobalt oxide, the lithium cobalt oxide comprises a first element, and the first element comprises magnesium, titanium and aluminum; and the second material layer comprises an inorganic additive. The electrolyte comprises a tricarbonitrile compound. Based on the total mass of the positive electrode material, the mass content of the first element is n1, wherein 800 ppm≤n1≤10000 ppm.

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