Method of manufacturing a lithium ion battery

Patent metadata

Field	Value
Publication number	US-9929438-B2
Application number	US-201715427124-A
Country	US
Kind code	B2
Filing date	Feb 8, 2017
Priority date	Mar 31, 2014
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

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.

First claim

What is claimed is:

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.

Assignees

• Infineon Technologies Ag

Inventors

• Karlovsky Kamil
• Janski Rafael
• Sorger Michael
• Forster Magdalena
• Schmut Katharina
• Rajaraman Vijaye Kumar
• Leuschner Rainer
• Goller Bernhard

Classifications

• H01M10/4257 Primary

  Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries · CPC title

• H01M50/159

  Metals · CPC title

• H01M50/193

  Organic material · CPC title

• H01M50/103

  prismatic or rectangular (H01M50/109, H01M50/11 take precedence) · CPC title

• H01M2/0285

  Electricity · mapped topic