Lithium strip

US12503752B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12503752-B2
Application numberUS-202318330490-A
CountryUS
Kind codeB2
Filing dateJun 7, 2023
Priority dateSep 27, 2021
Publication dateDec 23, 2025
Grant dateDec 23, 2025

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A lithium strip that can be used in lithium supplementation equipment is described. The lithium strip has a first surface, and a thinned area is formed at the edge of the first surface along the width direction of the lithium strip to form a space for accommodating a release agent at the thinned area. The thinned area is designed to enable the lithium strip to pick up more release agent when it is applied to a coating device, and the release agent can remain in the above thinned area. The presence of the thinned area in the lithium strip can reduce the lithium load per unit width, so that during the calendering process of the lithium strip, there will be no calendering exceeding the preset width, so that the lithium strip will not stick to the roller after calendering.

First claim

Opening claim text (preview).

The invention claimed is: 1 . A lithium strip wherein the lithium strip has a first surface, and a thinned area is formed at the edge of the first surface along the width direction of the lithium strip to form a space for accommodating a release agent at the thinned area. 2 . The lithium strip according to claim 1 , wherein the first surface is provided with rounded corners at the edge along the width direction, and the rounded corners form the thinned area. 3 . The lithium strip according to claim 2 , wherein the radius of the rounded corner is ¼ to ⅓ of the thickness of the lithium strip. 4 . The lithium strip according to claim 2 , wherein the first surface has rounded corners on both sides of the edge along the width direction. 5 . The lithium strip according to claim 2 , wherein the lithium strip further has a second surface, the first surface and the second surface are opposite to each other in the thickness direction of the lithium strip, and the first surface has rounded corners on both sides of the edge along the width direction. 6 . The lithium strip according to claim 1 , wherein the first surface is provided with chamfers at the edge along the width direction, and the chamfers form the thinned area. 7 . The lithium strip according to claim 6 , wherein the radius of the chamfer is ¼ to ⅓ of the thickness of the lithium strip. 8 . The lithium strip according to claim 6 , wherein the first surface has the chamfers on both sides of the edge along the width direction. 9 . The lithium strip according to claim 6 , wherein the lithium strip further has a second surface, the first surface and the second surface are opposite to each other in the thickness direction of the lithium strip, and the first surface has chamfers on both sides of the edge along the width direction. 10 . The lithium strip according to claim 1 , wherein the lithium strip has a rectangular cross-section.

Assignees

Inventors

Classifications

  • Construction or manufacture · CPC title

  • of elements or alloys · CPC title

  • Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

  • Li-accumulators · CPC title

  • Manufacturing or production processes characterised by the final manufactured product · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12503752B2 cover?
A lithium strip that can be used in lithium supplementation equipment is described. The lithium strip has a first surface, and a thinned area is formed at the edge of the first surface along the width direction of the lithium strip to form a space for accommodating a release agent at the thinned area. The thinned area is designed to enable the lithium strip to pick up more release agent when it…
Who is the assignee on this patent?
Contemporary Amperex Technology Hong Kong Ltd
What technology area does this patent fall under?
Primary CPC classification C22C24/00. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Dec 23 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).