Positive electrode for lithium ion secondary battery, and lithium ion secondary battery using the same
US-2017331146-A1 · Nov 16, 2017 · US
Electrode for lithium secondary battery and lithium secondary battery comprising same
US11050129B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11050129-B2 |
| Application number | US-201716324077-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 16, 2017 |
| Priority date | Oct 26, 2016 |
| Publication date | Jun 29, 2021 |
| Grant date | Jun 29, 2021 |
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- Title
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- Abstract
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Abstract
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The present disclosure relates to an electrode for a lithium secondary battery, the electrode comprising: a current collector layer; a functional layer disposed on the current collector layer; and an active material layer disposed on the functional layer, wherein the functional layer includes a polymer particle having a weight-average molecular weight of 200 to 50,000.
First claim
Opening claim text (preview).
The invention claimed is: 1. A electrode for a lithium secondary battery, comprising a current collector layer; a functional layer disposed on the current collector layer; and an active material layer disposed on the functional layer, wherein the functional layer comprises a polymer particle having a weight-average molecular weight of 200 to 600. 2. The electrode for a lithium secondary battery of claim 1 , wherein an average particle size of the polymer particle is 0.3 μm to 2.3 μm. 3. The electrode for a lithium secondary battery of claim 1 , wherein an average particle size of the polymer particle is 0.6 μm to 1.0 μm. 4. The electrode for a lithium secondary battery of claim 1 , wherein a thickness of the functional layer is 5 μm to 15 μm. 5. The electrode for a lithium secondary battery of claim 1 , wherein an amount of the polymer particle is 93 wt % to 98.5 wt % based on the functional layer. 6. The electrode for a lithium secondary battery of claim 1 , wherein a melting temperature of the polymer particle is 90° C. to 125° C. 7. A lithium secondary battery, comprising a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an electrolyte solution, wherein at least one of the positive electrode and the negative electrode comprises the electrode for a lithium secondary battery of claim 1 .
Assignees
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Classifications
Energy storage using batteries · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Safety or regulating additives or arrangements in electrodes, separators or electrolyte (H01M10/4242 takes precedence) · CPC title
- H01M50/581Primary
in response to temperature · CPC title
Li-accumulators · CPC title
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- What does patent US11050129B2 cover?
- The present disclosure relates to an electrode for a lithium secondary battery, the electrode comprising: a current collector layer; a functional layer disposed on the current collector layer; and an active material layer disposed on the functional layer, wherein the functional layer includes a polymer particle having a weight-average molecular weight of 200 to 50,000.
- Who is the assignee on this patent?
- Samsung Sdi Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/581. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 29 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).