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Metal oxide nanosheet-sulfur nanocomposite and lithium-sulfur battery using the same
US11145859B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11145859-B2 |
| Application number | US-201816234646-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 28, 2018 |
| Priority date | Oct 27, 2017 |
| Publication date | Oct 12, 2021 |
| Grant date | Oct 12, 2021 |
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Abstract
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The present disclosure relates to a metal oxide nanosheet-sulfur nanocomposite containing sulfur nanoparticles grown directly on each of exfoliated metal oxide nanosheets, and a lithium-sulfur battery including a sulfur cathode containing the metal oxide nanosheet-sulfur nanocomposite.
First claim
Opening claim text (preview).
We claim: 1. A metal oxide nanosheet-sulfur nanocomposite, comprising elemental sulfur nanoparticles chemically grown directly on each of exfoliated 2-dimensional metal oxide nanosheets, wherein the exfoliated metal oxide nanosheets comprise a nanosheet of titanium oxide selected from the group consisting of lepidocrocite, trititanate, tetratitanate, and pentatitanate. 2. The metal oxide nanosheet-sulfur nanocomposite of claim 1 , wherein the exfoliated metal oxide nanosheets further comprise a nanosheet of oxide of metal selected from the group consisting of Co, Cu, Zn, Mn, V, Mo, and combinations thereof. 3. The metal oxide nanosheet-sulfur nanocomposite of claim 1 , wherein the sulfur content is at least 80 parts by weight based on 100 parts by weight of the metal oxide nanosheet-sulfur nanocomposite. 4. A lithium-sulfur battery, comprising a sulfur cathode comprising the metal oxide nanosheet-sulfur nanocomposite according to claim 1 . 5. The lithium-sulfur battery of claim 4 , wherein the sulfur content is at least 80 parts by weight based on 100 parts by weight of the metal oxide nanosheet-sulfur nanocomposite. 6. The lithium-sulfur battery of claim 4 , wherein dissolution of lithium polysulfide in the sulfur cathode is suppressed by the metal oxide nanosheet-sulfur nanocomposite. 7. The lithium-sulfur battery of claim 4 , wherein the exfoliated metal oxide nanosheets further comprise a nanosheet of oxide of metal selected from the group consisting of Cu, Zn, V, Mo, and combinations thereof.
Assignees
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Classifications
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates · CPC title
Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy · CPC title
of elements or alloys · CPC title
- H01M4/366Primary
as layered products · CPC title
Li-accumulators · CPC title
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- What does patent US11145859B2 cover?
- The present disclosure relates to a metal oxide nanosheet-sulfur nanocomposite containing sulfur nanoparticles grown directly on each of exfoliated metal oxide nanosheets, and a lithium-sulfur battery including a sulfur cathode containing the metal oxide nanosheet-sulfur nanocomposite.
- Who is the assignee on this patent?
- Ewha University—Industry Collaboration Found
- What technology area does this patent fall under?
- Primary CPC classification H01M4/366. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 12 2021 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).