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Nec Energy Devices Ltd patents


Recent patent applications related to Nec Energy Devices Ltd. Nec Energy Devices Ltd is listed as an Agent/Assignee. Note: Nec Energy Devices Ltd may have other listings under different names/spellings. We're not affiliated with Nec Energy Devices Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | Nec Energy Devices Ltd-related inventors


Secondary battery

Provided is a secondary battery with a high electric characteristic and reliability that prevents the short circuit between a positive electrode and a negative electrode by an insulating member and that prevents or reduces the volume increase and deformation of a battery electrode assembly. A secondary battery includes a battery... Nec Energy Devices Ltd

Negative electrode for lithium ion secondary battery, and lithium ion secondary battery

A negative electrode for a lithium ion secondary battery, the negative electrode including a negative electrode active material, a fine graphite material, a conductive aid, and a binder, wherein the mass ratio of the fine graphite material to the conductive aid is in the range from 1 to 10, and... Nec Energy Devices Ltd

Lithium-ion secondary battery

(Z, A1, A2, B1, B2, and Q1 in the formula (1) are as defined in the description.)... Nec Energy Devices Ltd

Battery

A first separator (130) covers a first surface of a cathode electrode (110). The first separator (130) has a melting point of a first temperature. A second separator (140) covers a second surface of the cathode electrode (110). The second separator (140) has a melting point of a second temperature... Nec Energy Devices Ltd

Method of producing paste for production of negative electrode, producing negative electrode for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery

A method of producing a paste for production of a negative electrode of a lithium ion secondary battery, which includes a negative electrode active material, a thickening agent, and an aqueous binder. The method includes preparing a mixture containing the negative electrode active material and the thickening agent by dry... Nec Energy Devices Ltd

Polymer gel electrolyte, lithium ion battery and producing same

A polymer gel electrolyte containing at least a lithium salt and an aprotic solvent, in which an amorphous polymer layer is formed on the surface of an electrode active material.... Nec Energy Devices Ltd

Production electrode for secondary battery, electrode for secondary battery, and secondary battery

The present invention relates to a production method of an electrode for a secondary battery which has an electrode laminated assembly that has a configuration in which electrodes and a separator are laminated. An insulating member is formed on border portion (4) between an application portion and a non-application portion... Nec Energy Devices Ltd

Production method and production apparatus of electrode for secondary battery, electrode for secondary battery, and secondary battery

An electrode for a secondary battery including an electrode laminated assembly that has a configuration in which electrodes and a separator are laminated, includes current collector 3 and active material layer 2 formed on a surface of current collector 3. Active material layer 2 includes a thick-layer portion and a... Nec Energy Devices Ltd

Battery control system, battery pack, electronic device

A measurement unit (200) measures voltages and currents of battery cells (100). A battery control unit (400) calculates a present estimation value of a residual capacity of the battery cells (100) by integrating the currents. The voltages of the battery cells (100) are set to a reference voltage value V1... Nec Energy Devices Ltd

Secondary battery and electrode production method

Secondary battery includes a battery assembly configured by alternately stacking positive electrodes 1 and negative electrodes 6 via separators 20, in which the positive electrode and the negative electrode respectively include collectors 3 and 8, and active materials 2 and 7 applied on the collectors. On each surface of the... Nec Energy Devices Ltd

Lithium ion secondary battery and manufacturing same

A method for manufacturing a lithium ion secondary battery, the lithium ion secondary battery including a positive electrode and a negative electrode disposed with a separator sandwiched therebetween and contained together with an electrolytic solution in an outer case including a flexible film, wherein the quantity of dissolved nitrogen in... Nec Energy Devices Ltd

Method for producing negative electrode for lithium ion battery and producing lithium ion battery

A method for producing a negative electrode for a lithium ion battery comprising heat-treating a negative electrode active material layer that is placed on a negative electrode current collector and includes a carbon material as a negative electrode active material and a binder until dry, and placing the layer under... Nec Energy Devices Ltd

Lithium ion secondary battery

A lithium ion secondary battery including: a positive electrode including a positive electrode active material capable of intercalating and deintercalating a lithium ion; a negative electrode including a negative electrode active material capable of intercalating and deintercalating a lithium ion; and a non-aqueous electrolytic solution, wherein the positive electrode active... Nec Energy Devices Ltd

Graphite-based negative electrode active material, negative electrode, and lithium ion secondary battery

A graphite-based negative electrode active material including a first graphite particle being spheroidized and a second graphite particle having a roundness lower than the roundness of the first graphite particle, wherein the content of the second graphite particle based on the sum of the first graphite particle and the second... Nec Energy Devices Ltd

Secondary battery

Secondary battery 1 includes: battery electrode assembly 5 that has a quadrangular planar shape, and includes a positive electrode and a negative electrode laminated with a separator interposed therebetween; and an exterior container that is formed of flexible films 7, and contains battery electrode assembly 5. The exterior container has... Nec Energy Devices Ltd

Lithium ion secondary battery

A stacked lithium ion secondary battery is characterized in that separators, which are stacked with positive and negative electrodes, are a flat bag or flat tube with at least one side of an outer periphery thereof intermittently heat-sealed; the heat-sealed side is provided with concave and convex portions made up... Nec Energy Devices Ltd

Lithium-ion secondary battery and producing the same

In a lithium-ion secondary battery, as for a distance from a connection section between a positive electrode tab and the positive electrode terminal to a boundary section between applying and non-applying sections of positive-electrode active material in a direction perpendicular to a stacking direction, compared with a reference positive electrode... Nec Energy Devices Ltd

Graphite-based active material, negative electrode, and lithium ion secondary battery

A graphite-based active material including: a first composite particle including a first graphite core particle and a first non-graphite-based carbon material covering the surface of the first graphite core particle; and a second composite particle including a second graphite core particle and a second non-graphite-based carbon material covering the surface... Nec Energy Devices Ltd

Secondary battery

Secondary battery 100 comprises: battery electrode assembly (electrode laminate) 4 that includes positive electrodes 1 and negative electrodes 2 that overlap each other with separator 3 interposed therebetween; and conductive adhesive tape 5 which has a multilayer structure including adhesive layer 5a and conductive layer 5b, wherein adhesive layer 5a... Nec Energy Devices Ltd

Secondary battery and manufacturing the same

A secondary battery includes an laminated electrode in which positive electrode (1) and a negative electrode are arranged with a separator interposed therebetween. Positive electrode collector foil (3) is made of aluminum or an aluminum alloy. Positive electrode mixture layer (2) includes a positive electrode active material containing nickel and... Nec Energy Devices Ltd








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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. Freshpatents.com is not affiliated or associated with Nec Energy Devices Ltd in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Nec Energy Devices Ltd with additional patents listed. Browse our Agent directory for other possible listings. Page by FreshPatents.com

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