Negative electrode for power storage device, method for forming the same, and power storage device

US2017288205A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2017288205-A1
Application numberUS-201715621520-A
CountryUS
Kind codeA1
Filing dateJun 13, 2017
Priority dateApr 6, 2012
Publication dateOct 5, 2017
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor; thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering part of the negative electrode active material. The film has an insulating property and lithium ion conductivity.

First claim

Opening claim text (preview).

What is claimed is: 1 . A method for forming a battery, comprising the steps of: forming a dispersion solution by dispersing a particle of an active material in a solution including one of metal alkoxide and silicon alkoxide, a stabilizing agent, and a solvent; attaching a gel, formed by hydrolyzing and condensing the one of metal alkoxide and silicon alkoxide in the dispersion solution, on a surface of the particle of the active material; and forming an oxide film on the surface by performing heating treatment on the gel.

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Inventors

Classifications

  • Inhibitors, e.g. gassing inhibitors, corrosion inhibitors · CPC title

  • specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation · CPC title

  • Energy storage using capacitors · CPC title

  • Processes for the manufacture of hybrid or EDL capacitors, or components thereof · CPC title

  • H01G11/28Primary

    arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives · CPC title

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What does patent US2017288205A1 cover?
An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor; thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative e…
Who is the assignee on this patent?
Semiconductor Energy Lab
What technology area does this patent fall under?
Primary CPC classification H01G11/28. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Oct 05 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).