Electrochemical cell with anode material in protrusion
US-2024363931-A1 · Oct 31, 2024 · US
Nanostructured metal oxides comprising internal voids and methods of use thereof
US8945504B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945504-B2 |
| Application number | US-201213721440-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2012 |
| Priority date | Jun 6, 2006 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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The present invention relates to nano structures of metal oxides having a nanostructured shell (or wall), and an internal space or void. Nanostructures may be nanoparticles, nanorod/belts/arrays, nanotubes, nanodisks, nanoboxes, hollow nanospheres, and mesoporous structures, among other nanostructures. The nanostructures are composed of polycrystalline metal, oxides such as SnO 2 . The nanostructures may have concentric walls which surround the internal space of cavity. There may be two or more concentric shells or walls. The internal space may contain a core such ferric oxides or other materials which have functional properties. The invention also provides for a novel, inexpensive, high-yield method for mass production of hollow metal oxide nanostructures. The method may be template free or contain a template such as silica. The nanostructures prepared by the methods of the invention provide for improved cycling performance when tested using rechargeable lithium-ion batteries.
First claim
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What is claimed is: 1. An electrode for use in a battery comprising at least one polycrystalline nanostructure, wherein the nanostructure comprises at least two metal oxide concentric shells defining an inner void, wherein the nanostructure further comprises a core within the inner void, and wherein the nanostructure has a discharge capacity of at least about 300 mAh/g after about 25 cycles. 2. The electrode of claim 1 , wherein the shells are not covalently li…
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Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8945504B2 cover?
- The present invention relates to nano structures of metal oxides having a nanostructured shell (or wall), and an internal space or void. Nanostructures may be nanoparticles, nanorod/belts/arrays, nanotubes, nanodisks, nanoboxes, hollow nanospheres, and mesoporous structures, among other nanostructures. The nanostructures are composed of polycrystalline metal, oxides such as SnO 2 . The nanostru…
- Who is the assignee on this patent?
- Univ Cornell, Cornell Res Foundation Inc
- What technology area does this patent fall under?
- Primary CPC classification H01M4/48. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 2015 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).