Metal sulfide composite materials for batteries

US2020381766A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2020381766-A1
Application numberUS-202016997694-A
CountryUS
Kind codeA1
Filing dateAug 19, 2020
Priority dateFeb 20, 2014
Publication dateDec 3, 2020
Grant date

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  1. Title

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  2. Abstract

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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.

Lithium-ion batteries are provided that variously comprise anode and cathode electrodes, an electrolyte, a separator, and, in some designs, a protective layer. In some designs, at least one of the electrodes may comprise a composite of (i) Li2S and (ii) conductive carbon that is embedded in the core of the composite. In some designs, the protective layer may be disposed on at least one of the electrodes via electrolyte decomposition. Various methods of fabrication for lithium-ion battery electrodes and particles are also provided.

First claim

Opening claim text (preview).

1 . A lithium-ion battery, comprising: anode and cathode electrodes, wherein at least one of the electrodes comprises a core-shell composite of (i) a Li 2 S active material and (ii) functional additives, wherein the functional additives comprise a metal oxide and a conductive carbon, with the metal oxide and the carbon being embedded in the core of the composite, and wherein the metal oxide is an active material that exhibits a capacity above 10 mAh/g in an operational potential window of the at least one electrode; an electrolyte ionically coupling the anode and the cathode; and a separator electrically separating the anode and the cathode.

Assignees

Inventors

Classifications

  • Sulfides · CPC title

  • Chemical vapour deposition · CPC title

  • Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy · CPC title

  • H01M10/052Primary

    Li-accumulators · CPC title

  • Methods of surface bonding and/or assembly therefor · CPC title

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What does patent US2020381766A1 cover?
Lithium-ion batteries are provided that variously comprise anode and cathode electrodes, an electrolyte, a separator, and, in some designs, a protective layer. In some designs, at least one of the electrodes may comprise a composite of (i) Li2S and (ii) conductive carbon that is embedded in the core of the composite. In some designs, the protective layer may be disposed on at least one of the e…
Who is the assignee on this patent?
Sila Nanotechnologies Inc
What technology area does this patent fall under?
Primary CPC classification H01M10/052. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Dec 03 2020 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).