Solid electrolyte for a negative electrode of a secondary battery and methods for the manufacture of an electrochemical cell
US-2018205112-A1 · Jul 19, 2018 · US
Separator for nonaqueous electrolyte secondary batteries, nonaqueous electrolyte secondary battery, and method for producing separator for nonaqueous electrolyte secondary batteries
US2023029282A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023029282-A1 |
| Application number | US-202017786940-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 22, 2020 |
| Priority date | Dec 27, 2019 |
| Publication date | Jan 26, 2023 |
| Grant date | — |
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- Title
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Abstract
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This separator for nonaqueous electrolyte secondary batteries contains a polymer compound and a solid electrolyte, and has a pore volume of 0.06 cm3/gor less.
First claim
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1 . A separator for a non-aqueous electrolyte secondary battery, including: a polymer compound; and a solid electrolyte, wherein a pore volume is 0.06 cm 3 /gor less. 2 . The separator for a non-aqueous electrolyte secondary battery according to claim 1 , wherein a thickness is 0.2 µm or more and 10 µm or less. 3 . The separator for a non-aqueous electrolyte secondary battery according to claim 1 , wherein the polymer compound is cellulose. 4 . The separator for a non-aqueous electrolyte secondary battery according to claim 1 , wherein the solid electrolyte is LATP. 5 . A non-aqueous electrolyte secondary battery, comprising: the separator for a non-aqueous electrolyte secondary battery according to claim 1 ; a positive electrode; a negative electrode; and a non-aqueous electrolyte. 6 . A method for producing a separator for a non-aqueous electrolyte secondary battery, including: a slurry production step of mixing a dissolution liquid obtained by dissolving a polymer compound in an ionic liquid, with a solid electrolyte, to produce a slurry; a gelling step of coating a surface of a substrate with the slurry to produce a coating film and replacing the ionic liquid with an organic poor solvent having a lower solubility of the polymer compound than the ionic liquid, to thereby produce a gelled film in which the coating film is gelled; and a drying step of drying the gelled film to obtain a composite film.
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Classifications
Polymeric materials, e.g. gel-type or solid-type · CPC title
- H01M50/409Primary
Separators, membranes or diaphragms characterised by the material · CPC title
of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators · CPC title
- H01M50/403Primary
Manufacturing processes of separators, membranes or diaphragms · CPC title
Composite material consisting of a mixture of organic and inorganic materials · CPC title
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Frequently asked questions
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- What does patent US2023029282A1 cover?
- This separator for nonaqueous electrolyte secondary batteries contains a polymer compound and a solid electrolyte, and has a pore volume of 0.06 cm3/gor less.
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/409. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jan 26 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).