Patents Assigned to StoreDot Ltd.
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Publication number: 20180212439Abstract: Methods and supercapacitor-emulating fast-charging batteries are provided. Methods comprise configuring a fast-charging battery to emulate a supercapacitor with given specifications by operating the fast-charging battery only within a partial operation range which is defined according to the given specifications of the supercapacitor and is smaller than 20%, possibly 5% or 1%, of a full operation range of the fast-charging battery. Devices are provided, which comprise control circuitry and a modified fast-charging lithium ion battery having Si, Ge and/or Sn-based anode active material and designed to operate at 5 C at least and within a range of 5% at most around a working point of between 60-80% lithiation of the Si, Ge and/or Sn-based anode active material, wherein the control circuitry is configured to maintain a state of charge (SOC) of the battery within the operation range around the working point.Type: ApplicationFiled: March 25, 2018Publication date: July 26, 2018Applicant: StoreDot Ltd.Inventor: Daniel ARONOV
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Publication number: 20180208839Abstract: Color conversion films for a LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. For example, rhodamine-based fluorescent compounds are used in matrices produced by sol gel processes and/or UV (ultraviolet) curing processes which are configured to stabilize the compounds and extend their lifetime—to provide the required emission specifications of the color conversion films. Film integration and display configurations further enhance the display performance with color conversion films utilizing various color conversion elements. Fluorescent emission may be enhanced by plasmon resonance of coupled nanoparticles.Type: ApplicationFiled: March 19, 2018Publication date: July 26, 2018Applicant: StoreDot Ltd.Inventors: Daniel Szwarcman, Evgenia Liel (Jeny) Kuks
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Publication number: 20180212239Abstract: Core-shell particles, composite anode material, anodes made therefrom, lithium ion cells and methods are provided, which enable production of fast charging lithium ion batteries. The composite anode material has core-shell particles which are configured to receive and release lithium ions at their cores and to have shells that are configured to allow for core expansion upon lithiation. The cores of the core-shell particles are connected to the respective shells by conductive material such as carbon fibers, which may form a network throughout the anode material and possibly interconnect cores of many core-shell particles to enhance the electrical conductivity of the anode. Ionic conductive material and possibly mechanical elements may be incorporated in the core-shell particles to enhance ionic conductivity and mechanical robustness toward expansion and contraction of the cores during lithiation and de-lithiation.Type: ApplicationFiled: October 25, 2017Publication date: July 26, 2018Applicant: StoreDot Ltd.Inventors: David Jacob, Sergey Remizov, Nitzan Shadmi, Hani Farran, Daniel Aronov
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Publication number: 20180212240Abstract: Core-shell particles, composite anode material, anodes made therefrom, lithium ion cells and methods are provided, which enable production of fast charging lithium ion batteries. The composite anode material has core-shell particles which are configured to receive and release lithium ions at their cores and to have shells that are configured to allow for core expansion upon lithiation. The cores of the core-shell particles are connected to the respective shells by conductive material such as carbon fibers, which may form a network throughout the anode material and possibly interconnect cores of many core-shell particles to enhance the electrical conductivity of the anode. Ionic conductive material and possibly mechanical elements may be incorporated in the core-shell particles to enhance ionic conductivity and mechanical robustness toward expansion and contraction of the cores during lithiation and de-lithiation.Type: ApplicationFiled: December 25, 2017Publication date: July 26, 2018Applicant: StoreDot Ltd.Inventors: David JACOB, Sergey REMIZOV, Nitzan SHADMI, Hani FARRAN, Daniel ARONOV
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Patent number: 10033023Abstract: Methods, stacks and electrochemical cells are provided, in which the cell separator is surface-treated prior to attachment to the electrode(s) to form binding sites on the cell separator and enhance binding thereof to the electrode(s), e.g., electrostatically. The cell separator(s) may be attached to the electrode(s) by cold press lamination, wherein the created binding sites are configured to stabilize the cold press lamination electrostatically—forming flexible and durable electrode stacks. Electrode slurry may be deposited on a sacrificial film and then attached to current collector films, avoiding unwanted interactions between materials and in particular solvents involved in the respective slurries. Dried electrode slurry layers may be pressed or calendared against each other to yield thinner, smother and more controllably porous electrodes, as well as higher throughput. The produced stacks may be used in electrochemical cells and in any other type of energy storage device.Type: GrantFiled: December 19, 2017Date of Patent: July 24, 2018Assignee: StoreDot Ltd.Inventors: Ekaterina Gotlib Vainshtein, Daniel Aronov
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Publication number: 20180198161Abstract: Methods, systems and battery modules are provided, which increase the cycling lifetime of fast charging lithium ion batteries. During the formation process, the charging currents are adjusted to optimize the cell formation, possibly according to the characteristics of the formation process itself, and discharge extents are partial and optimized as well, as is the overall structure of the formation process. During operation, voltage ranges are initially set to be narrow, and are broadened upon battery deterioration to maximize the overall lifetime. Current adjustments are applied in operation as well, with respect to the deteriorating capacity of the battery. Various formation and operation strategies are disclosed, as basis for specific optimizations.Type: ApplicationFiled: January 11, 2018Publication date: July 12, 2018Applicant: STOREDOT LTD.Inventors: Leonid KRASOVITSKY, Vladimir SELEZNYOV, Daniel ARONOV
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Publication number: 20180175355Abstract: Methods, stacks and electrochemical cells are provided, in which the cell separator is surface-treated prior to attachment to the electrode(s) to form binding sites on the cell separator and enhance binding thereof to the electrode(s), e.g., electrostatically. The cell separator(s) may be attached to the electrode(s) by cold press lamination, wherein the created binding sites are configured to stabilize the cold press lamination electrostatically—forming flexible and durable electrode stacks. Electrode slurry may be deposited on a sacrificial film and then attached to current collector films, avoiding unwanted interactions between materials and in particular solvents involved in the respective slurries. Dried electrode slurry layers may be pressed or calendared against each other to yield thinner, smother and more controllably porous electrodes, as well as higher throughput. The produced stacks may be used in electrochemical cells and in any other type of energy storage device.Type: ApplicationFiled: December 19, 2017Publication date: June 21, 2018Applicant: STOREDOT LTD.Inventors: Ekaterina GOTLIB VAINSHTEIN, Daniel ARONOV
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Patent number: 10003060Abstract: Methods, stacks and electrochemical cells are provided, in which the cell separator is surface-treated prior to attachment to the electrode(s) to form binding sites on the cell separator and enhance binding thereof to the electrode(s), e.g., electrostatically. The cell separator(s) may be attached to the electrode(s) by cold press lamination, wherein the created binding sites are configured to stabilize the cold press lamination electrostatically—forming flexible and durable electrode stacks. Electrode slurry may be deposited on a sacrificial film and then attached to current collector films, avoiding unwanted interactions between materials and in particular solvents involved in the respective slurries. Dried electrode slurry layers may be pressed or calendared against each other to yield thinner, smother and more controllably porous electrodes, as well as higher throughput. The produced stacks may be used in electrochemical cells and in any other type of energy storage device.Type: GrantFiled: December 19, 2017Date of Patent: June 19, 2018Assignee: StoreDot Ltd.Inventors: Ekaterina Gotlib Vainshtein, Daniel Aronov
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LFP AS INITIATOR OF IN-BATTERY POLYMERIZATION OF CONDUCTING POLYMERS FOR HIGH-RATE-CHARGING CATHODES
Publication number: 20180166680Abstract: Cathodes for a fast charging lithium ion battery, processes for manufacturing thereof and corresponding batteries are provided. Cathode formulations comprise spinel and/or layered structure cathode material with 5-10% of cathode material having an olivine-based structure as polymerization initiator, binder material, and monomer and/or oligomer material selected to polymerize into a conductive polymer upon partial delithiation of the olivine-based structure cathode material during at least a first charging cycle of a cell having a cathode made of the cathode formulation. When the cathode is used in a battery, polymerization is induced in-situ (in-cell) during first charging cycle(s) of the battery to provide a polymer matrix which is evenly dispersed throughout the cathode.Type: ApplicationFiled: December 11, 2017Publication date: June 14, 2018Applicant: STOREDOT LTD.Inventors: Carmit OPHIR, Libi BRAKHA -
Patent number: 9994765Abstract: Color conversion films for a LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. For example, rhodamine-based fluorescent compounds are used in matrices produced by sol gel processes and/or UV (ultraviolet) curing processes which are configured to stabilize the compounds and extend their lifetime—to provide the required emission specifications of the color conversion films. Film integration and display configurations further enhance the display performance with color conversion films utilizing various color conversion elements. Fluorescent emission may be enhanced by plasmon resonance of coupled nanoparticles.Type: GrantFiled: January 26, 2017Date of Patent: June 12, 2018Assignee: STOREDOT Ltd.Inventors: Daniel Szwarcman, Evgenia Liel Kuks
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Patent number: 9966591Abstract: Methods, stacks and electrochemical cells are provided, which improve production processes and yield flexible and durable electrode stacks. Methods comprise depositing an electrode slurry on a sacrificial film to form an electrode thereupon, wherein the electrode slurry comprises a first solvent, attaching (e.g., laminating) a current collector film, which is produced at least partly using a second solvent, onto the formed electrode, to yield a stack, wherein a binding strength of the electrode to the current collector film is higher than a binding strength of the electrode to the sacrificial film, and delaminating the sacrificial film from the electrode while maintaining the attachment of the electrode to the current collector film. Additional layers such as a cell separator and an additional electrode may be further attached using similar steps.Type: GrantFiled: February 14, 2017Date of Patent: May 8, 2018Assignee: StoreDot Ltd.Inventors: Sergey Remizov, Boris Brudnik, David Jacob, Daniel Aronov
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Patent number: 9951225Abstract: This invention is directed to photoluminescent compounds based on rhodamine dyes with green emission and uses thereof for photoluminescence based devices.Type: GrantFiled: August 31, 2016Date of Patent: April 24, 2018Assignee: StoreDot Ltd.Inventors: Evgenia Liel (Jeny) Kuks, Rony Schwarz, Eran Sella, Mor Shmuel Armon, Daniel Szwarcman
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Publication number: 20180105696Abstract: This invention is directed to photoluminescent compounds based on rhodamine dyes with green emission and uses thereof for photoluminescence based devices.Type: ApplicationFiled: December 14, 2017Publication date: April 19, 2018Applicant: StoreDot Ltd.Inventors: Evgenia Liel (Jeny) KUKS, Rony SCHWARZ, Eran SELLA, Daniel SZWARCMAN
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Publication number: 20180108937Abstract: Electrolytes, lithium ion cells and corresponding methods are provided, for extending the cycle life of fast charging lithium ion batteries. The electrolytes are based on fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly on ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component. Proposed electrolytes extend the cycle life by factors of two or more, as indicated by several complementary measurements.Type: ApplicationFiled: December 18, 2017Publication date: April 19, 2018Applicant: StoreDot Ltd.Inventors: Zohar Drach, Olga Guchok, Leonid Krasovitsky
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Publication number: 20180072892Abstract: Color conversion films for a LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. The color conversion films may comprise at least one of: polydimethylsiloxane hydroxy terminated, dendritic polyol or polyvinylpyrrolidone.Type: ApplicationFiled: August 31, 2017Publication date: March 15, 2018Applicant: StoreDot Ltd.Inventors: Mor Shmuel ARMON, Elad COHEN, Evgenia Liel (Jeny) KUKS, Rony SCHWARZ, Eran SELLA, Daniel SZWARCMAN
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Publication number: 20180057689Abstract: This invention is directed to photoluminescent compounds based on rhodamine dyes with green emission and uses thereof for photoluminescence based devices.Type: ApplicationFiled: July 27, 2017Publication date: March 1, 2018Applicant: StoreDot Ltd.Inventors: Evgenia Liel (Jeny) KUKS, Rony Schwarz, Eran Sella, Mor Shmuel Armon, Daniel Szwarcman
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Publication number: 20180050602Abstract: Electric vehicles (EVs), power trains and control units and methods are provided. Power trains comprise a main fast-charging lithium ion battery (FC), configured to deliver power to the electric vehicle, a supercapacitor-emulating fast-charging lithium ion battery (SCeFC), configured to receive power and deliver power to the FC and/or to the EV, and a control unit. Both the FC and the SCeFC have anodes based on the same anode active material, and the SCeFC is configured to operate at high rates within a limited operation range of state of charge (SoC), maintained by the control unit, which is further configured to manage the FC and the SCeFC with respect to power delivery to and from the EV, respectively, and manage power delivery from the SCeFC to the FC according to specified criteria that minimize a depth of discharge and/or a number of cycles of the FC.Type: ApplicationFiled: October 13, 2017Publication date: February 22, 2018Applicant: StoreDot Ltd.Inventor: Daniel ARONOV
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Publication number: 20180037738Abstract: This invention is directed to photoluminescent compounds based on rhodamine dyes with green or red emission and uses thereof for photoluminescence based devices.Type: ApplicationFiled: August 31, 2017Publication date: February 8, 2018Applicant: StoreDot Ltd.Inventors: Evgenia Liel (Jeny) KUKS, Rony SCHWARZ, Eran SELLA, Daniel SZWARCMAN
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Publication number: 20180039131Abstract: Color conversion films for a LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. Film integration and display configurations further enhance the display performance with color conversion films utilizing various color conversion elements and possibly patterned and/or integrated with a crosstalk blocking matrix. For example, color conversion and/or assistant dyes may be used to enhance spectral regions transmitted through the color filters and shape the illumination spectrum, to improve efficiency and performance.Type: ApplicationFiled: August 31, 2017Publication date: February 8, 2018Applicant: StoreDot Ltd.Inventors: Daniel SZWARCMAN, Ziv Sobol
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Patent number: 9868859Abstract: Color conversion films for a LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. For example, rhodamine-based fluorescent compounds are used in matrices produced by sol gel processes and/or UV (ultraviolet) curing processes which are configured to stabilize the compounds and extend their lifetime—to provide the required emission specifications of the color conversion films. Film integration and display configurations further enhance the display performance with color conversion films utilizing various color conversion elements.Type: GrantFiled: November 16, 2016Date of Patent: January 16, 2018Assignee: StoreDot Ltd.Inventors: Daniel Szwarcman, Elad Cohen, Mor Shmuel Armon, Evgenia Liel (Jeny) Kuks, Rony Schwarz, Elena Eisurovich, Daniel Aronov, Eran Sella