Cation deficient materials for electrical energy storage

US9466831B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9466831-B2
Application numberUS-201414310355-A
CountryUS
Kind codeB2
Filing dateJun 20, 2014
Priority dateAug 14, 2009
Publication dateOct 11, 2016
Grant dateOct 11, 2016

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A method of: dissolving salts of a first metal ion and a second metal ion in water to form a solution; heating the solution to a temperature of about 80-90° C.; and adding a base to the solution to precipitate nanoparticles of an oxide of the first metal ion and the second metal ion.

First claim

Opening claim text (preview).

What is claimed is: 1. A method comprising: dissolving salts of a first metal ion and a second metal ion in water to form a solution; heating the solution to a temperature of about 80-90° C.; and adding a base to the solution to precipitate nanoparticles of an oxide of the first metal ion and the second metal ion; wherein the second metal ions have a higher oxidation state than the first metal ions; and wherein the presence of the second metal ion increases the number of metal cation vacancies relative to an absence of the second metal ion. 2. The method of claim 1 ; wherein the first metal ion is Fe 3+ ; and wherein the second metal ion is Mo 6+ or V 5+ . 3. The method of claim 1 , wherein the oxide comprises γ-Fe 2 O 3 and at least one of Mo 6+ and v 5+ . 4. The method of claim 1 , wherein the metal salts include FeCl 3 .6H 2 O, FeCl 2 .4H 2 O, and MoCl 5 . 5. The method of claim 1 , wherein the base is triethylamine.

Assignees

Inventors

Classifications

  • fluorinated polymers · CPC title

  • C01G49/00Primary

    Compounds of iron · CPC title

  • Cross-Sectional Technologies · mapped topic

  • by XPS, EDX or EDAX data · CPC title

  • Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9466831B2 cover?
A method of: dissolving salts of a first metal ion and a second metal ion in water to form a solution; heating the solution to a temperature of about 80-90° C.; and adding a base to the solution to precipitate nanoparticles of an oxide of the first metal ion and the second metal ion.
Who is the assignee on this patent?
Long Jeffrey W, Rolison Debra R, Hahn Benjamin P, and 1 more
What technology area does this patent fall under?
Primary CPC classification C01G49/00. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Oct 11 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).