Electrode and method for manufacturing an electrode

Patent metadata

Field	Value
Publication number	US-9786901-B2
Application number	US-201414217846-A
Country	US
Kind code	B2
Filing date	Mar 18, 2014
Priority date	Mar 20, 2013
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A method for manufacturing an electrode. To provide a particularly cost-effective method, which is able to provide a current collector layer that adheres well and is electrically well-connected, the method including: a) providing a layer having an active material; b) one-sided electrochemical deposition of a metallic material on the layer having the active material, thus forming a current collector layer having the metallic material; c) joining the product obtained in b) to another layer having an active material and to a contact element so that the current collector layer having the deposited metallic material is situated between two layers having an active material, and that the contact element for establishing contact is at least partially exposed and is in contact with the current collector layer having the deposited metallic material.

First claim

What is claimed is:

1. A method for manufacturing an electrode, the method comprising:
(a) providing a layer having an active material;
(b) providing one-sided electrochemical deposition of a metallic material on the layer having the active material by using a solid matrix that absorbs an electrolyte, so as to form a current collector layer having the metallic material and having a thickness in a range from greater than or equal to 1 μm to less than 7 μm;
(c) joining a product obtained in (b) to another layer having an active material and to a contact element so that the current collector layer having the deposited metallic material is situated between the layer having an active material and the another layer having an active material, and that the contact element for establishing contact is at least partially exposed and is in contact with the current collector layer having the deposited metallic material.

2. The method of claim 1 , wherein an anode material is used as at least one of the active material of the layer or as the active material of the another layer.

3. The method of claim 1 , wherein (b) is performed by using an aqueous copper ion solution as the electrolyte.

4. The method of claim 1 , wherein (c) is performed by lamination.

5. A method for manufacturing an electrode, the method comprising:
(a) providing a layer having an active material;
(b) providing one-sided electrochemical deposition of a metallic material on the layer having the active material by using a solid matrix that absorbs an electrolyte, so as to form a current collector layer having the metallic material;
(c) joining a product obtained in (b) to another layer having an active material and to a contact element so that the current collector layer having the deposited metallic material is situated between the layer having an active material and the another layer having an active material, and that the contact element for establishing contact is at least partially exposed and is in contact with the current collector layer having the deposited metallic material,
wherein (b) is performed using a current density in a range from greater than or equal to 1 A/dm 2 to less than or equal to 5 A/dm 2 .

6. The method of claim 1 , wherein at least one of the layer having an active material or the another layer having the active material is provided as being applied on a carrier material in a detachable manner.

7. A method for manufacturing an electrode, the method comprising:
(a) providing a layer having an active material;
(b) providing one-sided electrochemical deposition of a metallic material on the layer having the active material by using a solid matrix that absorbs an electrolyte, so as to form a current collector layer having the metallic material;
(c) joining a product obtained in (b) to another layer having an active material and to a contact element so that the current collector layer having the deposited metallic material is situated between the layer having an active material and the another layer having an active material, and that the contact element for establishing contact is at least partially exposed and is in contact with the current collector layer having the deposited metallic material,
wherein at least one of the layer having an active material or the another layer having the active material is provided by an extrusion process.

8. The method of claim 1 , wherein the thickness of said current collector layer lies in a range from greater than or equal to 1 μm to less than or equal to 5 μm.

9. The method of claim 1 , wherein the thickness of said current collector layer lies in a range from greater than or equal to 2 μm to less than or equal to 3 μm.

Assignees

• Bosch Gmbh Robert

Inventors

• Hippchen Silvan

Classifications

• H01M4/0411 Primary

  by extrusion · CPC title

• H01M4/661

  Metal or alloys, e.g. alloy coatings (H01M4/669 take precedence) · CPC title

• H01M4/139

  Processes of manufacture · CPC title

• H01M4/1395

  of electrodes based on metals, Si or alloys · CPC title

• H01M4/366

  as layered products · CPC title