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Publicaciones de los últimos 15 días/Last 15 days publications (excluidas publicaciones CN/CN publications excluded)



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ACTIVE MATERIAL FOR A NEGATIVE ELECTRODE OF A NICKEL/METAL HYDRIDE ALKALINE BATTERY

NºPublicación: FR3053978A1 19/01/2018

Solicitante:
CENTRE NATIONAL DE LA RECHERCHE SCIENT (CNRS) [FR]
ACCUMULATEURS FIXES [FR]
UNIV DE PARIS EST CRETEIL VAL DE MARNE UPEC [FR]

Resumen de: WO2018011140A1

A hydridable alloy of formula R1-x-yYxMgyNis-zMz in which: R represents one or more elements chosen from La, Ce, Nd, Pr, Gd and Sm; M represents one or more elements chosen from Mn, Fe, Al, Co, Cu, Zr, Sn and Cr; 0 < x ≤ 0.5; 0 ≤ y ≤ 0.3; 3.3 ≤ s ≤ 3.85 and 0 < z ≤ 0.5; said alloy comprising at least one crystalline phase of structure A2B7 and/or at least one crystalline phase of structure A5B19, the main crystal lattice of the crystalline phase of structure A2B7 and/or that of the crystalline phase of structure A5B19 having a deformation rate, measured before hydridation, less than or equal to 0.040% +/- 0.002%, the average atomic radius of the atoms constituting the group A being less than or equal to 1.810 Å.



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IONICALLY CONDUCTIVE MATERIAL FOR ELECTROCHEMICAL GENERATOR AND PRODUCTION METHODS

NºPublicación: FR3054078A1 19/01/2018

Solicitante:
INST POLYTECHNIQUE DE GRENOBLE [FR]
CENTRE NATIONAL DE LA RECHERCHE SCIENT -CNRS [FR]

Resumen de: WO2018011521A1

The invention relates to ionically conductive materials that can be used in electrochemical generators. The aim of the invention is to provide a new ionically conductive material that can be used in an electrochemical generator, for example in separators, solid polymer electrolytes or electrodes, has good mechanical properties and good ionic conductivity and is able to prevent dendritic growth in lithium batteries. Said material comprises: 1. at least one polymer A, different from B, having an ionic conductivity of between 10-5 and 10-3 S/cm; 2. at least one polymer B having mechanical strength characterised by a storage modulus > 200 MPa, for example of between 200 and 5000 MPa or between 350 and 1500 MPa; and 3. at least one reinforcing filler C. The invention also relates to films based on said type of material and to methods for the synthesis of said films. The invention further relates to a separator, a solid polymer electrolyte or an electrode based on said ionically conductive material and to an electrochemical generator comprising such an ionically conductive material.



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BATTERY CELL BALANCING METHOD AND SYSTEM

NºPublicación: WO2018012706A1 18/01/2018

Solicitante:
LG CHEMICAL LTD [KR]

Resumen de: WO2018012706A1

The present invention relates to a method and a system for stabilizing a battery through cell balancing of a battery pack and, more particularly, to a method and system for operating battery cell balancing and determining a control situation through feedback on the cell balancing, thereby improving reliability of the battery cell balancing and enabling proactive measures for malfunctioning of the battery.



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BINDER FOR SECONDARY BATTERY ELECTRODE, COMPOSITION COMPRISING SAME FOR SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY USING SAME

NºPublicación: WO2018012881A1 18/01/2018

Solicitante:
LG CHEMICAL LTD [KR]

Resumen de: WO2018012881A1

The present invention relates to a binder for a secondary battery electrode, a composition comprising the same for a secondary battery electrode, and a secondary battery using the same, wherein the binder comprises a copolymer of polyvinyl alcohol (PVA) and ionized substituted acrylate. The binder has excellent electrode adhesive strength, and can prevent deformation of an electrode due to expansion and contraction of an electrode active material, improve charge/discharge life characteristics, and further simplify the manufacturing process.



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LITHIUM SECONDARY BATTERY HAVING LITHIUM METAL FORMED ON CATHODE AND MANUFACTURING METHOD THEREFOR

NºPublicación: WO2018012694A1 18/01/2018

Solicitante:
LG CHEMICAL LTD [KR]

Resumen de: WO2018012694A1

The present invention relates to a lithium secondary battery and, more particularly, to a lithium secondary battery having lithium, serving as an anode active material, formed on a cathode side thereof and a manufacturing method therefor. In the lithium secondary battery according to the present invention, a lithium thin film is coated under an air tight condition during a process of forming the lithium thin film on an anode current collector, which can restrain the formation of a native oxide layer, attributed to oxygen and moisture in air, on the lithium thin film, with the consequent improvement of cycle life characteristics therein.



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VOLTAGE BALANCE CORRECTION CIRCUIT

NºPublicación: US2018019600A1 18/01/2018

Solicitante:
FDK CORP [JP]

Resumen de: US2018019600A1

A voltage balance correction circuit includes multiple voltage correction circuits that correspond one-to-one to multiple electricity storage cells connected in series, and a control circuit that is configured to control the multiple voltage correction circuits based on voltages of the multiple electricity storage cells. The multiple voltage correction circuits include first coils that are connected to the electricity storage cells in parallel, respectively, field-effect transistors that are configured to turns on/off connections of the first coils with the electricity storage cells, respectively, under control of the control circuit, and second coils that are magnetically respectively coupled with the first coils. In the multiple voltage correction circuits, the second coils are connected in parallel.



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Stackable Cell and Battery Module Including Same

NºPublicación: US2018019447A1 18/01/2018

Solicitante:
BOSCH GMBH ROBERT [DE]

Resumen de: US2018019447A1

A battery module supports a stack of nested electrochemical cells. Each cell includes an electrically-conductive container including a bottom, and a sidewall surrounding a periphery of the bottom. Each cell includes an electrically-conductive cell cover configured to close an open end of the container, an insulating gasket disposed between the container and the cell cover and an electrically-conductive jelly roll electrode set disposed in the container. The cell cover is formed having a recess configured to receive the bottom of an adjacent cell. In particular, the recess is configured to conform to the shape and size of the bottom of the adjacent cell so that when the cells are stacked end-to-end, a cell stack is formed in which the cells of the stack a) fit within each other in a nested arrangement, and b) form an electrical connection.



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GEL ELECTROLYTE AND PRECURSOR COMPOSITION THEREOF AND BATTERY

NºPublicación: US2018019497A1 18/01/2018

Solicitante:
INDUSTRIAL TECH RESEARCH INSTITUTE [TW]

Resumen de: US2018019497A1

nA precursor composition of a gel electrolyte is provided, which includes (1) meta-stable nitrogen-containing polymer, (2) gelling promoter, (3) carbonate compound, and (4) metal salt. The (1) meta-stable nitrogen-containing polymer is formed by reacting (a) nitrogen-containing heterocyclic compound with (b) maleimide compound, wherein (a) nitrogen-containing heterocyclic compound and (b) maleimide compound have a molar ratio of 1:0.1 to 1:10.



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ELECTRODE WITH PERFORATED CURRENT COLLECTOR AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

NºPublicación: US2018019477A1 18/01/2018

Solicitante:
LG CHEMICAL LTD [KR]

Resumen de: US2018019477A1

Disclosed are an electrode including a perforated current collector, and a lithium secondary battery including the same, and according to the present disclosure, precipitation and elimination reactions of lithium metal are induced inside a perforation of a negative electrode current collector, and therefore, volume expansion of a cell is suppressed and battery performance is enhanced therefrom.



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POSITIVE TEMPERATURE COEFFICIENT FILM, POSITIVE TEMPERATURE COEFFICIENT ELECTRODE, POSITIVE TEMPERATURE COEFFICIENT SEPARATOR, AND BATTERY COMPRISING THE SAME

NºPublicación: US2018019505A1 18/01/2018

Solicitante:
AMERICAN LITHIUM ENERGY CORP [US]

Resumen de: US2018019505A1

Provided herein is a positive temperature coefficient film comprising an inorganic positive temperature coefficient compound. Also provided herein are a positive temperature coefficient electrode, a positive temperature coefficient separator, and a positive temperature coefficient lithium secondary battery, each of which comprises the positive temperature coefficient film.



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INTEGRATION BATTERY FOR VEHICLE

NºPublicación: US2018019507A1 18/01/2018

Solicitante:
HYUNDAI MOTOR CO LTD [KR]
KIA MOTORS CORP [KR]

Resumen de: US2018019507A1

An integration battery for a vehicle includes: a housing in which an inlet duct from which air is introduced and an outlet duct through which the air is discharged are mounted; a high voltage battery mounted in the housing and disposed between the inlet duct and the outlet duct; and a low voltage battery disposed between the high voltage battery and the inlet duct.



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BATTERY, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE DEVICE, AND ELECTRIC POWER SYSTEM

NºPublicación: WO2018012528A1 18/01/2018

Solicitante:
MURATA MANUFACTURING CO [JP]

Resumen de: WO2018012528A1

This battery is provided with a wound positive electrode and a wound negative electrode. The positive electrode is provided with: a positive electrode current collector; a first positive electrode active material layer disposed on the inner surface of the positive electrode current collector; and a second positive electrode active material layer disposed on the outer surface of the positive electrode current collector. The inner circumferential side end and the outer circumferential side end of the positive electrode current collector are covered with the first positive electrode active material layer. The first positive electrode active material layer has a low area density part at a position facing the inner circumferential end of the positive electrode.



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LITHIUM ION BATTERY

NºPublicación: WO2018012485A1 18/01/2018

Solicitante:
KURITA WATER IND LTD [JP]

Resumen de: WO2018012485A1

This lithium ion battery E is provided with a positive electrode terminal 1, a negative electrode terminal 2 and a battery case 3 which is an airtight container; and an electrode body 10 is contained within the battery case 3. The electrode body 10 comprises a positive electrode collector 11, an electrode plate 12 for positive electrodes, a negative electrode collector 13 and an electrode plate 14 for negative electrodes, while having a structure wherein the electrode plate 12 for positive electrodes and the electrode plate 14 for negative electrodes are laminated with a separator 15 being interposed therebetween. In addition, a hydrofluoric acid absorbent material is arranged in a void part within the battery case 3. This hydrofluoric acid absorbent material is preferably a zeolite or the like, which has moisture removal ability. A lithium ion battery which uses this hydrofluoric acid absorbent material has excellent hydrofluoric acid absorbency and is capable of suppressing especially the generation of hydrofluoric acid itself.



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POWER SUPPLY CONTROL DEVICE, AND POWER SUPPLY SYSTEM

NºPublicación: WO2018012470A1 18/01/2018

Solicitante:
DENSO CORP [JP]

Resumen de: WO2018012470A1

This power supply system comprises: a plurality of electricity storage means (12, 13); and a switching unit which includes a plurality of switching means (21-25) provided to electrical paths which lead to each of the electricity storage means, and which switches between a parallel state in which the plurality of electricity storage means are connected in parallel, and a serial state in which the plurality of electricity storage means are connected in series. The power supply control unit (30) comprises: an acquisition unit which acquires an electricity storage parameter which is correlated with the magnitude of current flowing through a current-carrying path including paths between each of the electricity storage means in the parallel state or serial state, as a parameter indicating the state of the plurality of electricity storage means; and a resistance control unit which adjusts the resistance value of a variable resistor present on the current-carrying path in the parallel state or serial state, on the basis of the electricity storage state parameter.



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SIMULATION METHOD AND SIMULATION DEVICE

NºPublicación: WO2018011993A1 18/01/2018

Solicitante:
HITACHI CHEMICAL CO LTD [JP]

Resumen de: WO2018011993A1

Provided is a simulation method such that the characteristics of a power storage device after deterioration can be estimated accurately. In this simulation method, a simulation is performed using an equivalent circuit model for the power storage device. The simulation method comprises the step of calculating a terminal voltage V(t) in the equivalent circuit model on the basis of a current I(t) flowing through the equivalent circuit model. The equivalent circuit model comprises a plurality of characteristic parameters. At least one of the characteristic parameters includes a time function representing an effect of deterioration on the power storage device. The time function has terms including a time integral of a value representing the operating state of the power storage device, and a coefficient representing a deterioration rate multiplied by the time integral.



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GRAPHENE COMPOUND, METHOD FOR FORMING GRAPHENE COMPOUND, AND POWER STORAGE DEVICE

NºPublicación: WO2018011675A1 18/01/2018

Solicitante:
SEMICONDUCTOR ENERGY LAB [JP]

Resumen de: WO2018011675A1

A material that can be used in a wide temperature range and a manufacturing method thereof are provided. A graphene compound has a substituted or unsubstituted chain group. The chain group has one or more ester groups or carboxyl groups and contains a Si atom. The chain group is bonded to a graphene layer through the Si atom. A method for forming a graphene compound includes a step of stirring graphene oxide and a Lewis base and a step of mixing a silicon compound having one or more ester groups or carboxyl groups into the mixed solution and stirring the obtained mixed solution. The Lewis base is butylamine, pentylamine, hexylamine, diethylamine, dipropylamine, dibutylamine, triethylamine, tripropylamine, or pyridine.



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POWER STORAGE ELEMENT AND POWER STORAGE ELEMENT PRODUCTION METHOD

NºPublicación: WO2018012465A1 18/01/2018

Solicitante:
GS YUASA INT LTD [JP]

Resumen de: WO2018012465A1

This power storage element (10) is provided with an electrode body (400) formed by winding a negative electrode plate (420), a separator (430), and other components. When viewed in the winding axis direction, the innermost periphery (401) of the negative electrode plate (420), the separator (430), and the other components, which have been wound, has a flat shape comprising a pair of curved portions (402a and 402b) opposing one another in a first direction. An edge (420a) of the negative electrode plate (420) on the innermost periphery (401) side is disposed at a position at, or in the vicinity of one of the pair of curved portions (402a and 402b).



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MANAGEMENT DEVICE AND PROGRAM

NºPublicación: WO2018012060A1 18/01/2018

Solicitante:
PANASONIC IP MAN CO LTD [JP]

Resumen de: WO2018012060A1

In the present invention an acquisition unit 82 acquires, from each of multiple batteries, battery identification information and a first value for the battery. For each battery a management unit 72 updates a second value for the battery on the basis of the first value acquired by the acquisition unit 82, while associating the first and the second value by means of the identification information acquired by the acquisition unit 82. When the identification information acquired by the acquisition unit 82 is not being managed the management unit 72 newly derives the second value for the battery on the basis of the first value acquired by the acquisition unit 82.



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FLUIDIZED BED AND HYBRID SUSPENSION ELECTRODES FOR ENERGY STORAGE AND WATER DESALINATION SYSTEMS

NºPublicación: WO2018011787A1 18/01/2018

Solicitante:
TECHNION RES AND DEVELOPMENT FOUNDATION LIMITED [IL]

Resumen de: WO2018011787A1

An electrode comprising conductive particles, which sediment under gravitational force and a liquid fluidizing medium flowing through the electrode, in which said conductive particles are suspended and optionally further comprising conductive particles, which do not sediment under gravitational force when the fluidizing medium flows in the electrode. Further provided are electrochemical devices and energy storage systems comprising said electrode.



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SECONDARY BATTERY

NºPublicación: WO2018012787A1 18/01/2018

Solicitante:
SAMSUNG SDI CO LTD [KR]

Resumen de: WO2018012787A1

A secondary battery according to an embodiment of the present invention comprises: an electrode assembly that includes a separator interposed between a first electrode and a second electrode; a first electrode tap and a second electrode tap that extend from the first electrode and the second electrode, and that respectively have a bent part formed therein; a first lead tap and a second lead tap that are respectively and electrically connected to the first electrode tap and the second electrode tap; a pouch case that accommodates the electrode assembly, wherein an upper junction part through which the first lead tap and the second lead tap protrude to the outside is formed on the pouch case; and an insulation member that includes a first part for insulating the first lead tap and the second lead tap at the upper junction part, and a second part located inside the pouch case and extending from the first part to the electrode assembly.



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ELECTROCHEMICAL METHODS, DEVICES AND COMPOSITIONS

NºPublicación: US2018019496A1 18/01/2018

Solicitante:
ALLIGANT SCIENT LLC [US]

Resumen de: US2018019496A1

The disclosure provides a method comprising inducing a first current between a source of a countercharge and a first electrode, the first current being through an electrolyte. A second current is induced across the first electrode, the second current being transverse to the first current, and the second current inducing a relativistic charge across the first electrode.



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ELECTROCHEMICAL METHODS, DEVICES AND COMPOSITIONS

NºPublicación: US2018016697A1 18/01/2018

Solicitante:
ALLIGANT SCIENT LLC [US]

Resumen de: US2018016697A1

The disclosure provides a method comprising inducing a first current between a source of a countercharge and a first electrode, the first current being through an electrolyte. In some instances, the first current is not present. A second current, in the form of waveform, is induced across the first electrode, the second current being transverse to the first current, and the second current inducing a relativistic charge across the first electrode. Metal from the electrolyte is deposited on the substrate or corroded from the substrate, among other things. The methods, as well as associated apparatus, improve deposition, bonding, corrosion, and other effects.



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EXCHANGEABLE BATTERIES FOR USE BY ELECTRIC VEHICLES

NºPublicación: US2018015835A1 18/01/2018

Solicitante:
EMERGING AUTOMOTIVE LLC [US]

Resumen de: US2018015835A1

An electric vehicle including an electric motor is provided. The electric vehicle having a receptacle slot integrated in the electric vehicle, and the receptacle slot providing a connection for providing power to the electric motor. A battery is configured for sliding into the receptacle slot to enable electrical engagement of the battery with the connection when in the receptacle slot. The battery is further configured for sliding out of the receptacle slot to remove the battery from electrical engagement with the connection. The battery is configured to store and supply charge to power the electric motor of the electric vehicle. The battery is replaceable by sliding the battery out of the receptacle slot and sliding in another battery into the receptacle slot to further supply charge to power the electric motor of the electric vehicle with said another battery. The battery and said another battery each have a respective portion that is accessible for enabling its hand-removal and hand-insertion out of and into the receptacle slot. A computer is on-board the electric vehicle. The computer is interfaced with the connection of the receptacle slot to obtain a level of charge of the battery present in the receptacle slot. A battery level indicator of the electric vehicle is provided. The battery level indicator configured to provide information regarding the level of charge of the battery in the receptacle slot.



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NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES AND SECONDARY BATTERY PROVIDED WITH SAME

NºPublicación: US2018019498A1 18/01/2018

Solicitante:
STELLA CHEMIFA CORP [JP]

Resumen de: US2018019498A1

A nonaqueous electrolytic solution for a secondary battery exhibits excellent cycle characteristics even in high-temperature environments. The solution includes at least one of boric acid esters, acid anhydrides, cyclic carbonates having an unsaturated bond, cyclic carbonates having a halogen atom, cyclic sulfonic acid esters, and amines having an acetoacetyl group. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.



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ALLOY POWDER FOR ELECTRODES, NEGATIVE ELECTRODE FOR NICKEL-HYDROGEN STORAGE BATTERIES USING SAME AND NICKEL-HYDROGEN STORAGE BATTERY

Nº publicación: US2018019469A1 18/01/2018

Solicitante:
PANASONIC IP MAN CO LTD [JP]

Resumen de: US2018019469A1

Alloy powder for electrodes that includes particles of a hydrogen-absorbing alloy having an AB2 type crystal structure. The hydrogen-absorbing alloy includes first elements that are located in an A site in the crystal structure and include Zr, and second elements that are located in a B site and include Ni and. Mn. The hydrogen-absorbing alloy includes a plurality of alloy phases having different Zr concentrations. In each of the alloy phases, the percentage of Zr in the first elements exceeds 70 atom %.


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