Method and Apparatus for Production of a Thin-Film Battery

• US 20110294015A1
• Filed: 05/24/2011
• Published: 12/01/2011
• Est. Priority Date: 05/25/2010
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Bohne, Laura, Teuschel, Thomas, Krauss, Andreas, Pirk, Tjalf
• Granted Patent: US 9,941,507 B2
• Time in Patent Office: Days
• US Class Current: 429/246
• CPC Class Codes: H01M 10/02 Details of electrodes H01M4/00; of non-active parts H01M50/00
• CPC Class Codes: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0562 Solid materials
• CPC Class Codes: H01M 10/0565 Polymeric materials, e.g. gel-type or solid-type
• CPC Class Codes: H01M 10/0585 of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• CPC Class Codes: H01M 4/04 Processes of manufacture in general
• CPC Class Codes: H01M 4/0402 Methods of deposition of the material
• CPC Class Codes: H01M 4/661 Metal or alloys, e.g. alloy coatings H01M4/669 take precedence
• CPC Class Codes: H01M 4/70 characterised by shape or form
• CPC Class Codes: H01M 6/188 Processes of manufacture
• CPC Class Codes: H01M 6/40 Printed batteries , e.g. thin film batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A method for production of a thin-film battery includes providing a mount structure, applying of a first unmasked flow of a first electrode material to the mount structure in order to form a first electrode layer, applying a second unmasked flow of a battery material in order to form a battery layer, and applying a third unmasked flow of a second electrode material in order to form a second electrode layer. The applying steps are repeated in order to produce a thin-film battery which consists of a plurality of first electrode layers, a plurality of battery layers, and a plurality of second electrode layers.

Claims

1. A method for production of a thin-film battery, comprising:

providing a mount structure;

applying a first unmasked flow of a first electrode material to the mount structure in order to form a first electrode layer on the mount structure;

applying a second unmasked flow of a battery material to the mount structure in order to form a battery layer on the first electrode layer;

applying a third unmasked flow of a second electrode material to the mount structure in order to form a second electrode layer on the battery layer; and

repeating the applying steps in order to produce a thin-film battery which consists of a plurality of first electrode layers, a plurality of battery layers and a plurality of second electrode layers.

2. The method according to claim 1, in which a sequence of the applying steps is carried out such that at least one battery layer is formed on a first electrode layer, and at least one further battery layer is formed on a second electrode layer.

3. The method according to claim 1, further comprising:

applying a fourth unmasked flow of an insulating material to the mount structure, in order to form an insulating layer on the first or the second electrode layer.

4. The method according to claim 1, wherein the first and/or the second electrode material is applied such that the first and/or the second electrode layer have/has a porous structure.

5. The method according to claim 1, further comprising:

exposing end areas of the first electrode layers and/or of end areas of the second electrode layers; and

making contact between the end areas of the first electrode layers and/or the end areas of the second electrode layers.

6. The method according to claim 1, wherein the mount structure has a base surface with a first barrier and a second barrier, which is arranged opposite the first barrier, the first unmasked flow is applied obliquely over the first barrier to the base surface, and the third unmasked flow is applied obliquely over the second barrier to the base surface.

7. The method according to claim 1, wherein the second unmasked flow is applied at right angles to the mount structure.

8. A barrier for a mount structure for production of a thin-film battery, comprising:

a first partial barrier and a second partial barrier, which are arranged on a base surface of the mount structure and are separated from one another by an intermediate space;

an electrically conductive first contact layer, which is formed on a side of the first partial barrier opposite the base surface, and an electrically conductive second contact layer, which is formed on the side of the second partial barrier opposite the base surface; and

an insulating cover, which is arranged on the first and the second contact surfaces and covers the intermediate space.

9. The barrier according to claim 8, in which the second partial barrier has a cutout along one side surface, in which cutout an electrical contact is arranged which passes through an opening in the base surface of the mount structure.

10. An energy store, comprising:

a first electrode, which is formed from a metal and has a porous surface structure;

a second electrode; and

a battery layer, which is arranged between the first and the second electrodes and is connected to the porous surface structure of the first electrode.

11. The energy store according to claim 10, in which the first electrode is formed from platinum or aluminum.