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
US2019334157A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019334157-A1 |
| Application number | US-201716324077-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 16, 2017 |
| Priority date | Oct 26, 2016 |
| Publication date | Oct 31, 2019 |
| Grant date | — |
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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
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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 50,000. 2 . The electrode for a lithium secondary battery of claim 1 , wherein a weight-average molecular weight of the polymer particle is 300 to 10,000. 3 . 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. 4 . 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. 5 . The electrode for a lithium secondary battery of claim 1 , wherein a thickness of the functional layer is 5 μm to 15 μm. 6 . 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. 7 . The electrode for a lithium secondary battery of claim 1 , wherein a melting temperature of the polymer particle is 90° C. to 125° C. 8 . 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
Inventors
Classifications
Li-accumulators · CPC title
Composites of electroconductive material and synthetic resins · CPC title
Inhibitors, e.g. gassing inhibitors, corrosion inhibitors · CPC title
- H01M4/13Primary
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
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- What does patent US2019334157A1 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 H01M4/13. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 31 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).