Electrolyte for lithium secondary batteries and lithium secondary battery including the same
US-2015249269-A1 · Sep 3, 2015 · US
Polysilsesquioxane polyalkylene glycol polymer having urethane bonds, solid polymer electrolyte composition comprising the same and method of preparing the same
US11031624B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11031624-B2 |
| Application number | US-201816186625-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2018 |
| Priority date | Nov 21, 2017 |
| Publication date | Jun 8, 2021 |
| Grant date | Jun 8, 2021 |
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- Title
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Abstract
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Disclosed is a polyalkylene glycol (PAG) polymer having urethane bonds, represented by Structural Formula 1 below. The present invention further relates to a solid polymer electrolyte composition, composed of a polyalkylene glycol polymer having urethane bonds, and a lithium salt. The solid polymer electrolyte of the invention can exhibit superior compatibility, stability, flexibility, mechanical properties and ionic conductivity.
First claim
Opening claim text (preview).
What is claimed is: 1. A solid polymer electrolyte, comprising: a matrix comprising polyalkylene glycol polymer gel prepared by subjecting a polyalkylene glycol (PAG) polymer having urethane bonds by Structural Formula 1 below to a sol-gel reaction; and a lithium salt dispersed in the matrix: in Structural Formula 1, R 1 is independently a C1 to C20 alkylene group, R 2 is independently a C1 to C20 alkylene group, R 3 to R 5 are the same as or different from each other, and are each independently a C1 to C20 alkyl group, and n is any one integer of 1 to 150, wherein the lithium salt includes at least one selected from among lithium bis(trifluoromethane)sulfonimide salt, lithium perchlorate, lithium hexafluorophosphate, lithium tetrafluoroborate, and lithium trifluoromethanesulfonate. 2. A lithium secondary battery, comprising the solid polymer electrolyte of claim 1 .
Assignees
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Classifications
- C08G65/336Primary
containing silicon · CPC title
- H01M10/0565Primary
Polymeric materials, e.g. gel-type or solid-type · CPC title
Nitrogen-containing linkages · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Compounding polymers with additives, e.g. colouring · CPC title
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- What does patent US11031624B2 cover?
- Disclosed is a polyalkylene glycol (PAG) polymer having urethane bonds, represented by Structural Formula 1 below. The present invention further relates to a solid polymer electrolyte composition, composed of a polyalkylene glycol polymer having urethane bonds, and a lithium salt. The solid polymer elect…
- Who is the assignee on this patent?
- Korea Inst Ind Tech
- What technology area does this patent fall under?
- Primary CPC classification C08G65/336. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 08 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).