Lithium secondary battery
US-2021399276-A1 · Dec 23, 2021 · US
Positive electrode slurry for lithium secondary battery, preparation method for same, positive electrode for lithium secondary battery, and lithium secondary battery
US12580196B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12580196-B2 |
| Application number | US-202217893826-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 23, 2022 |
| Priority date | Oct 27, 2021 |
| Publication date | Mar 17, 2026 |
| Grant date | Mar 17, 2026 |
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- Title
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Abstract
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Disclosed are, inter alia, a positive electrode slurry containing reduced content of a binder, a method of preparing the positive electrode slurry, a positive electrode made from the slurry and a lithium secondary battery including the positive electrode.
First claim
Opening claim text (preview).
What is claimed is: 1 . A composition for a positive electrode of a lithium secondary battery, comprising: a positive electrode active material, a conductive material, a binder, and silica, wherein a weight ratio between the positive electrode active material, the conductive material, the binder, and the silica ranges from about 93:4:2.7:0.3 to about 93:2.4:0.6. 2 . The composition of claim 1 , wherein the silica comprises silica fume. 3 . The composition of claim 1 , wherein the silica has a diameter of about 1 to 7 nm. 4 . The composition of claim 1 , wherein the positive electrode active material comprises one or more selected from nickel, cobalt, and manganese. 5 . The composition of claim 1 , further comprising a solvent component. 6 . A method of preparing a composition for a positive electrode of a lithium secondary battery, comprising: preparing a binder composition comprising a binder, silica, and a solvent component; and adding a positive electrode active material and a conductive material with the binder solution, wherein a weight ratio between the positive electrode active material, the conductive material, the binder, and the silica ranges from about 93:4:2.7:0.3 to 93:2.4:0.6. 7 . A positive electrode for a lithium secondary battery, wherein the positive electrode is made of a slurry composition of claim 1 . 8 . The positive electrode of claim 7 , wherein the positive electrode has a loading density of the positive electrode active material ranging from about 3.0 to about 19.0 mg/cm2. 9 . A lithium secondary battery comprising a positive electrode of claim 7 .
Assignees
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Classifications
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
Positive electrodes · CPC title
- H01M10/052Primary
Li-accumulators · CPC title
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- What does patent US12580196B2 cover?
- Disclosed are, inter alia, a positive electrode slurry containing reduced content of a binder, a method of preparing the positive electrode slurry, a positive electrode made from the slurry and a lithium secondary battery including the positive electrode.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Corp, Daegu Gyeongbuk Inst Science & Tech
- What technology area does this patent fall under?
- Primary CPC classification H01M10/052. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 17 2026 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).