Negative electrode for lithium ion secondary battery, lithium ion secondary battery comprising same, and method for producing negative electrode for lithium ion secondary battery
US-2018241076-A1 · Aug 23, 2018 · US
Lithium-ion-conducting composite material and process for producing
US11424480B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11424480-B2 |
| Application number | US-201816208642-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 4, 2018 |
| Priority date | Dec 4, 2017 |
| Publication date | Aug 23, 2022 |
| Grant date | Aug 23, 2022 |
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- Title
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- Abstract
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Abstract
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A lithium-ion-conducting composite material and process of producing are provided. The composite material includes at least one polymer and lithium-ion-conducting particles. The particles have a sphericity Ψ of at least 0.7. The composite material includes at least 20 vol % of the particles for a polydispersity index PI of the particle size distribution of <0.7 or are present in at least 30 vol % of the composite material for the polydispersity index in a range from 0.7 to <1.2, or are present in at least 40 vol % of the composite material for the polydispersity index of >1.2.
First claim
Opening claim text (preview).
What is claimed is: 1. A lithium-ion-conducting composite material, comprising: a polymer selected from the group consisting of polyethylene oxide, derivatives of polyethylene oxide, polyvinyl butyral, and combinations thereof; and lithium-ion-conducting particles having a sphericity Ψ of at least 0.7, wherein the lithium-ion-conducting particles comprise a lithium-ion-conducting compound selected from the group consisting of lithium lanthanum zirconate (LLZO), lithium aluminum titanium phosphate (LATP), and combinations thereof, wherein the lithium-ion-conducting particles have a polydispersity index of at least 0.7 and are present in at least 30 vol % of the composite material, and wherein the lithium-ion-conducting particles have an average particle diameter of 0.02 μm to 100 μm. 2. The lithium-ion-conducting composite material of claim 1 , wherein the lithium-ion-conducting particles have an average particle diameter of 0.2 μm to 2 μm. 3. The lithium-ion-conducting composite material of claim 1 , wherein the lithium-ion-conducting particles have an average particle diameter of 5 μm to 70 μm. 4. The lithium-ion-conducting composite material of claim 1 , wherein the lithium-ion-conducting particles are spray calcination particles. 5. The lithium-ion-conducting composite material of claim 4 , wherein the lithium-ion-conducting particles are pulsation reactor particles. 6. A lithium-ion-conducting composite material, comprising: a polymer selected from the group consisting of polyethylene oxide, derivatives of polyethylene oxide, polyvinyl butyral, and combinations thereof; and lithium-ion-conducting particles having a sphericity Ψ of at least 0.9, wherein the lithium-ion-conducting particles comprise a lithium-ion-conducting compound selected from the group consisting of lithium lanthanum zirconate (LLZO), lithium aluminum titanium phosphate (LATP), and combinations thereof, and wherein the lithium-ion-conducting particles have a polydispersity index of >1.2 and are present in at least 40 vol % of the composite material, and wherein the lithium-ion-conducting particles have an average particle diameter of 0.02 μm to 100 μm. 7. The lithium-ion-conducting composite material of claim 1 , wherein the lithium-ion-conducting particles have a sphericity Ψ of at least 0.9. 8. The lithium-ion-conducting composite material of claim 1 , wherein the lithium-ion-conducting particles have a polydispersity index of >1.2 and are present in least 40 vol % of the composite material.
Assignees
Inventors
Classifications
Compounds containing sulfur bound to nitrogen · CPC title
- H01M10/0565Primary
Polymeric materials, e.g. gel-type or solid-type · CPC title
Conductive additives · CPC title
Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition · CPC title
- C08K3/105Primary
Compounds containing metals of Groups 1 to 3 or of Groups 11 to 13 of the Periodic Table · CPC title
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- What does patent US11424480B2 cover?
- A lithium-ion-conducting composite material and process of producing are provided. The composite material includes at least one polymer and lithium-ion-conducting particles. The particles have a sphericity Ψ of at least 0.7. The composite material includes at least 20 vol % of the particles for a polydispersity index PI of the particle size distribution of <0.7 or are present in at least 30 vol…
- Who is the assignee on this patent?
- Schott Ag
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0565. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 23 2022 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).