Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Binder for negative electrode of rechargeable lithium battery and rechargeable lithium battery including same
US2023178742A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023178742-A1 |
| Application number | US-202218061916-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 5, 2022 |
| Priority date | Dec 7, 2021 |
| Publication date | Jun 8, 2023 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A binder for a negative electrode of a rechargeable lithium battery includes a copolymer of a styrene-based monomer and an acrylate-based monomer, wherein a mole ratio of the styrene-based monomer to the acrylate-based monomer is about 1:1 to about 1:3, and the binder has a swelling degree to an electrolyte of about 50 wt% or more to about 70 wt% or less.
First claim
Opening claim text (preview).
What is claimed is: 1 . A binder for a negative electrode of a rechargeable lithium battery, the binder comprising: a copolymer of a styrene-based monomer and an acrylate-based monomer, wherein a mole ratio of the styrene-based monomer to the acrylate-based monomer is about 1:1 to about 1:3, and the binder has a swelling degree to an electrolyte of about 50 wt% or more to about 70 wt% or less. 2 . The binder of claim 1 , wherein the styrene-based monomer is styrene, α-methylstyrene, β-methylstyrene, p-t-butyl styrene, chlorostyrene, or a combination thereof. 3 . The binder of claim 1 , wherein the acrylate-based monomer is 2-ethylhexylacrylate, methyl(meth)acrylate, ethyl(meth)acrylate, propyl(meth)acrylate, isopropyl(meth)acrylate, n-butyl(meth)acrylate, isobutyl(meth)acrylate, n-amyl(meth)acrylate, isoamyl(meth)acrylate, n-hexyl(meth)acrylate, hydroxyethyl(meth)acrylate, hydroxypropyl(meth)acrylate, isobornyl acrylate, isovinylacrylate, isovinyl methacrylate, or a combination thereof. 4 . The binder of claim 1 , wherein the copolymer is a cross-linked copolymer. 5 . The binder of claim 1 , wherein the binder is an aqueous binder. 6 . A negative electrode, comprising: the binder of claim 1 ; and a negative active material. 7 . A rechargeable lithium battery, comprising: the negative electrode of claim 6 ; a positive electrode; and an electrolyte.
Assignees
Inventors
Classifications
Energy storage using batteries · CPC title
C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate · CPC title
- H01M10/0525Primary
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
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- What does patent US2023178742A1 cover?
- A binder for a negative electrode of a rechargeable lithium battery includes a copolymer of a styrene-based monomer and an acrylate-based monomer, wherein a mole ratio of the styrene-based monomer to the acrylate-based monomer is about 1:1 to about 1:3, and the binder has a swelling degree to an electrolyte of about 50 wt% or more to about 70 wt% or less.
- Who is the assignee on this patent?
- Samsung Sdi Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jun 08 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).