Method of manufacturing a lithium ion battery

• US 9,929,438 B2
• Filed: 02/08/2017
• Issued: 03/27/2018
• Est. Priority Date: 03/31/2014
• Status: Active Grant

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Karlovsky, Kamil, Janski, Rafael, Sorger, Michael, Forster, Magdalena, Schmut, Katharina, Rajaraman, Vijaye Kumar, Leuschner, Rainer, Goller, Bernhard
• Primary Examiner(s): Chmielecki, Scott J.
• Application Number:
  US15/427,124
• Publication Number:
  US 20170149085A1
• Time in Patent Office: 412 Days
• Field of Search: None
• 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 10/058 Construction or manufacture
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 4/134 Electrodes based on metals, Si or alloys
• CPC Class Codes: H01M 4/386 Silicon or alloys based on silicon
• CPC Class Codes: H01M 4/66 Selection of materials
• CPC Class Codes: H01M 50/103 prismatic or rectangular H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H01M 50/159 Metals
• CPC Class Codes: H01M 50/193 Organic material
• CPC Class Codes: H01M 50/545 formed by the casing of the cells cup shaped terminals adapted for cells having curved cross-section H01M50/56
• 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
• CPC Class Codes: Y10T 29/4911 including sealing

Abstract

A method of manufacturing a lithium ion battery includes: attaching a lid to a first main surface of a first substrate, the lid including a conductive coves element; forming a cavity between the lid and the first substrate; forming an anode comprising a component made of a semiconductor material at the first substrate; forming a cathode at the lid; and filling an electrolyte into the cavity.

Claims

1. A method of manufacturing a lithium ion battery, the method comprising:

attaching a lid to a first main surface of a first substrate, the lid comprising a conductive cover element, the first substrate being a semiconductor substrate;

forming a cavity between the lid and the first substrate;

forming an anode comprising a component made of a semiconductor material at the first substrate;

forming a cathode at the lid; and

filling an electrolyte into the cavity.

2. The method of claim 1, wherein the lid is attached to the first main surface of the first substrate after filling the electrolyte into the cavity.

3. The method of claim 1, wherein forming the anode comprises patterning the first substrate to form grooves.

4. The method of claim 1, wherein forming the lid comprises providing a metal foil.

5. The method of claim 1, wherein the lid is attached to the first main surface of the first substrate by a method selected from the group consisting of thermal bonding, bonding using UV curable adhesive and anodic bonding.

6. The method of claim 1, wherein forming the lid comprises attaching a conductive cover element to a first main surface of a second substrate.

7. The method of claim 6, wherein a lateral extension of the conductive cover element is selected so that an edge portion of the second substrate is uncovered.

8. The method of claim 6, wherein the second substrate is made of an insulating material.

9. The method of claim 7, wherein the lid is attached to the first main surface of the first substrate by bonding using UV curable adhesive, and wherein UV radiation is transmitted through the uncovered edge portion of the second substrate.

10. The method of claim 6, wherein forming a cavity between the lid and the first substrate comprises forming a recess in the second substrate.

11. The method of claim 6, wherein the second substrate is a semiconductor substrate.

12. The method of claim 1, wherein forming the anode comprises forming the anode in the semiconductor substrate.

13. A method of manufacturing a lithium ion battery, the method comprising:

attaching a lid to a first main surface of a first substrate, the lid comprising a conductive cover element;

forming a cavity between the lid and the first substrate;

forming an anode comprising a component made of a semiconductor material at the first substrate;

forming a cathode at the lid; and

filling an electrolyte into the cavity,

wherein forming the lid comprises attaching a conductive cover element to a first main surface of a second substrate and the second substrate is a semiconductor substrate.

14. The method of claim 13, wherein the lid is attached to the first main surface of the first substrate after filling the electrolyte into the cavity.

15. The method of claim 13, wherein forming the anode comprises patterning the first substrate to form grooves.

16. The method of claim 13, wherein forming the lid comprises providing a metal foil.

17. The method of claim 13, wherein the lid is attached to the first main surface of the first substrate by a method selected from the group consisting of thermal bonding, bonding using UV curable adhesive and anodic bonding.

18. A method of manufacturing a lithium ion battery, the method comprising:

attaching a lid to a first main surface of a first substrate, the lid comprising a conductive cover element;

forming a cavity between the lid and the first substrate;

forming an anode comprising a component made of a semiconductor material at the first substrate, wherein forming the anode comprises patterning the first substrate to form grooves;

forming a cathode at the lid; and

filling an electrolyte into the cavity.

19. The method of claim 18, wherein the lid is attached to the first main surface of the first substrate after filling the electrolyte into the cavity.

20. The method of claim 18, wherein forming the lid comprises providing a metal foil.