Method for manufacturing solid electrolyte membrane for all solid type battery and solid electrolyte membrane manufactured by the method
US-2019372149-A1 · Dec 5, 2019 · US
Non-woven fabric, method of manufacturing non-woven fabric, solid electrolyte membrane, method of manufacturing solid electrolyte membrane, all-solid-state battery, and method of manufacturing all-solid-state battery
US12506221B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12506221-B2 |
| Application number | US-202017594611-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 23, 2020 |
| Priority date | Apr 25, 2019 |
| Publication date | Dec 23, 2025 |
| Grant date | Dec 23, 2025 |
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- Title
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Abstract
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A solid electrolyte membrane having favorable characteristics and a method of forming the same are provided. A solid electrolyte membrane 40 is composed of a non-woven fabric (ultrafine fiber non-woven fabric) UFN and solid electrolyte particles 4 AP incorporated therein. Also, the non-woven fabric UFN includes a fiber (ultrafine fiber UF) made of a resin containing a polar filler. A method of manufacturing the solid electrolyte membrane 40 includes a step of preparing the non-woven fabric UFN including a fiber made of a resin containing a polar filler, a step of applying a slurry S containing the solid electrolyte particles 4 AP onto the non-woven fabric UFN, and a step of heating while pressurizing the slurry S on the non-woven fabric UFN. Further, the non-woven fabric UFN is formed by making the resin containing the polar filler be a fibrous form by a laser electrospinning method.
First claim
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The invention claimed is: 1 . A solid electrolyte membrane including a non-woven fabric serving as a support and a solid electrolyte serving as a matrix component, wherein the non-woven fabric is composed of a plurality of ultrafine fibers, wherein each of the plurality of ultrafine fibers is added with cellulose nanofiber, wherein an amount of the cellulose nanofiber added to a raw material resin constituting each of the plurality of ultrafine fibers is 0.1% by volume or more and less than 10% by volume, wherein each of the plurality of ultrafine fibers has a fiber diameter of 1 μm or less, wherein a fiber diameter of the cellulose nanofiber is smaller than the fiber diameter of each of the plurality of ultrafine fibers, and wherein a length of the cellulose nanofiber is smaller than a length of each of the plurality of ultrafine fibers. 2 . The solid electrolyte membrane according to claim 1 , wherein the fiber diameter of the cellulose nanofiber is 0.001 μm or more and less than 1 μm, and wherein the length of the cellulose nanofibers is 0.5 μm or more and 10 μm or less.
Assignees
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Classifications
inorganic · CPC title
Construction or manufacture · CPC title
Solid materials · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Cellulose-derived artificial fibres · CPC title
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- What does patent US12506221B2 cover?
- A solid electrolyte membrane having favorable characteristics and a method of forming the same are provided. A solid electrolyte membrane 40 is composed of a non-woven fabric (ultrafine fiber non-woven fabric) UFN and solid electrolyte particles 4 AP incorporated therein. Also, the non-woven fabric UFN includes a fiber (ultrafine fiber UF) made of a resin containing a polar filler. A method …
- Who is the assignee on this patent?
- Japan Steel Works Ltd, Nat Univ Corp Kyoto Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification H01M50/44. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 23 2025 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).