Lithium metal patterning and electrochemical device using the same
US-2019181421-A1 · Jun 13, 2019 · US
Method for patterning lithium metal surface and electrode for lithium secondary battery using the same
US11271199B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11271199-B2 |
| Application number | US-201816604319-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 17, 2018 |
| Priority date | Aug 17, 2017 |
| Publication date | Mar 8, 2022 |
| Grant date | Mar 8, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method for patterning a lithium metal surface, including the steps of (S1) forming an intaglio or relief pattern having a predetermined size on a patterning substrate; (S2) either (a) compressing lithium metal physically to a surface of the patterning substrate having the pattern formed thereon to form the predetermined pattern on the surface of the lithium metal, or (b) applying liquid lithium to the surface of the patterning substrate having the pattern formed thereon and solidifying the liquid lithium to form the predetermined pattern on the surface of the lithium metal; and (S3) separating the lithium metal having the predetermined pattern formed thereon from the patterning substrate, wherein the patterning substrate is at least one selected from a silicon wafer or polycarbonate substrate.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for patterning a lithium metal surface, comprising the steps of: (S1) forming an intaglio or relief pattern having a predetermined size on a patterning substrate formed of a silicon wafer; (S2) after step (S1), forming a photoresist coating layer having a thickness of from 0.7 μm to 1.5 μm on the patterned surface of the patterning substrate, such that the patterned surface of the patterning substrate is totally covered with the photoresist; (S3) (a) compressing lithium metal physically to the photoresist covered surface of the patterning substrate to replicate the predetermined pattern on the surface of the lithium metal, or (b) applying liquid lithium to the photoresist covered surface of the patterning substrate and solidifying the liquid lithium to replicate the predetermined pattern on the surface of the lithium metal; and (S4) separating the lithium metal having the predetermined pattern formed thereon from the patterning substrate, and wherein a horizontal section of the intaglio or relief pattern having the predetermined size has a size of 10 μm to 900 μm. 2. The method for patterning the lithium metal surface according to claim 1 , wherein a horizontal section of the intaglio or relief pattern having the predetermined size has a polygonal, circular or elliptical shape. 3. The method for patterning the lithium metal surface according to claim 1 , wherein the intaglio or relief pattern having the predetermined size has a depth or height corresponding to 0.01 to 1 times of the size of a horizontal section of the intaglio or relief pattern having the predetermined size.
Assignees
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Classifications
Energy storage using batteries · CPC title
Methods of deposition of the material · CPC title
with shapes other than plane or cylindrical · CPC title
- H01M4/1395Primary
of electrodes based on metals, Si or alloys · CPC title
involving compressing or compaction · CPC title
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- What does patent US11271199B2 cover?
- A method for patterning a lithium metal surface, including the steps of (S1) forming an intaglio or relief pattern having a predetermined size on a patterning substrate; (S2) either (a) compressing lithium metal physically to a surface of the patterning substrate having the pattern formed thereon to form the predetermined pattern on the surface of the lithium metal, or (b) applying liquid lithi…
- Who is the assignee on this patent?
- Lg Chemical Ltd, Lg Energy Solution Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/1395. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 08 2022 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).