Back to results
US 12,665,201 B2Granted
Current collector, manufacturing method and equipment thereof, and current collector preform
AssigneeContemporary Amperex Technology (Hong Kong) Limited
InventorsXiaoming Ge, Yujie Chen, Feng Liu
Life of this patent
Estimating the term…
Abstract
The present application discloses a current collector, and manufacturing method and equipment thereof, and a current collector preform, wherein the current collector may include a porous foam metal part and solid metal part(s); the porous foam metal part may be uncompressed, and the porous foam metal part may include a first edge and a second edge oppositely distributed in a first direction, the first direction may be perpendicular to the thickness direction of the current collector; the first edge and/or the second edge may be connected with the solid metal part(s).
Claims9
A current collector, comprising:
- a porous foam metal part, the porous foam metal part comprises a first edge and a second edge oppositely distributed in a first direction, and the first direction is perpendicular to a thickness direction of the current collector and of the porous foam metal part;
- and
- at least one solid metal part, wherein the at least one solid metal part is connected to the first edge and/or the second edge,
- wherein the porous foam metal part, including the first edge and/or the second edge to which the at least one solid metal part is connected, is uncompressed,
- wherein the at least one solid metal part has a first metal segment;
- and in the first direction, a thickness of the first metal segment gradually decreases from an end thereof close to the porous foam metal part to an end thereof away from the porous foam metal part;
- optionally a surface of the first metal segment distributed in the thickness direction of the current collector is an arc-shaped surface, and in the thickness direction of the current collector, the arc-shaped surface bends toward a thickness center of the current collector;
- and/or the solid metal part has a second metal segment;
- in the first direction, the second metal segment is connected to the end of the first metal segment away from the porous foam metal part;
- and a thickness of the second metal segment is equal to a thickness of the end of the first metal segment away from the porous foam metal part, and
- wherein the at least one solid metal part has a third metal segment;
- and in the first direction, the third metal segment is connected between the porous foam metal part and the first metal segment, with a thickness of the third metal segment=(0.95˜1)×thickness of the porous foam metal part;
- optionally the thickness of the third metal segment is equal to the thickness of the end of the first metal segment close to the porous foam metal part.
10 more elements
A current collector, comprising:
- a porous foam metal part, the porous foam metal part comprises a first edge and a second edge oppositely distributed in a first direction, and the first direction is perpendicular to a thickness direction of the current collector and of the porous foam metal part;
- and
- at least one solid metal part, wherein the at least one solid metal part is connected to the first edge and/or the second edge,
- wherein the porous foam metal part, including the first edge and/or the second edge to which the at least one solid metal part is connected, is uncompressed,
- wherein:
- the at least one solid metal part has a first metal segment;
- and in the first direction, a thickness of the first metal segment gradually decreases from an end thereof close to the porous foam metal part to an end thereof away from the porous foam metal part;
- and the solid metal part has a second metal segment;
- in the first direction, the second metal segment is connected to the end of the first metal segment away from the porous foam metal part;
- and a thickness of the second metal segment is equal to a thickness of the end of the first metal segment away from the porous foam metal part,
- the at least one solid metal part has a third metal segment;
- and in the first direction, the third metal segment is connected between the porous foam metal part and the first metal segment, with a thickness of the third metal segment=(0.95˜1)×thickness of the porous foam metal part,
- a surface of the third metal segment distributed in the thickness direction of the current collector is covered with an insulating layer, and
- a thickness of a single insulating layer is ≥50 nm, and/or a thickness of the single insulating layer is ≤200 nm;
- and the porous foam metal part is porous foam copper, and the solid metal part is solid copper.
12 more elements
Dependencies are inferred from the claim text.