Lithium ion battery, integrated circuit and method of manufacturing a lithium ion battery

Patent metadata

Field	Value
Publication number	US-9614256-B2
Application number	US-201414230086-A
Country	US
Kind code	B2
Filing date	Mar 31, 2014
Priority date	Mar 31, 2014
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

A lithium ion battery includes a first substrate having a first main surface, and a lid including a conductive cover element, the lid being attached to the first main surface. A cavity is formed between the first substrate and the lid. The battery further includes an electrolyte disposed in the cavity. An anode of the battery includes a component made of a semiconductor material and is formed at the first substrate, and a cathode of the battery is formed at the lid.

First claim

What is claimed is:

1. A lithium ion battery, comprising:
a first semiconductor substrate having a first main surface;
a lid comprising a conductive cover element, the lid being attached to the first main surface;
a cavity formed between the first semiconductor substrate and the lid;
an electrolyte disposed in the cavity;
an anode formed in the first semiconductor substrate; and
a cathode at the lid.

2. The lithium ion battery according to claim 1 , wherein the lid is made of a conductive material to form the conductive cover element.

3. The lithium ion battery according to claim 1 , further comprising an insulating layer between the first semiconductor substrate and the lid.

4. The lithium ion battery according to claim 1 , wherein:
the lid further comprises a second semiconductor substrate, the conductive cover element being attached to a first main surface of the second semiconductor substrate;
a recess is defined in the second semiconductor substrate; and
the second semiconductor substrate is attached to the first main surface of the first semiconductor substrate.

5. The lithium ion battery according to claim 2 , wherein the conductive cover element is a conductive foil.

6. The lithium ion battery according to claim 4 , wherein the conductive cover element is a conductive foil and a second main surface of the second semiconductor substrate is attached to the first main surface of the first semiconductor substrate.

7. The lithium ion battery according to claim 4 , wherein the recess is formed so as to uncover a second main surface of the conductive cover element.

8. An integrated circuit formed in a first semiconductor substrate having first main surface, the integrated circuit comprising a lithium ion battery further including:
a lid comprising a conductive cover element, the lid being attached to the first main surface;
a cavity formed between the first semiconductor substrate and the lid;
an electrolyte disposed in the cavity; and
an anode formed in the first semiconductor substrate; and
a cathode at the lid.

9. A lithium ion battery, comprising:
a first substrate having a first main surface;
a lid comprising a conductive cover element, the lid being attached to the first main surface;
a cavity formed between the first substrate and the lid;
an electrolyte disposed in the cavity;
an anode comprising a component made of silicon at the first substrate; and
a cathode at the lid.

10. The lithium ion battery according to claim 9 , wherein the lid is made of a conductive material to form the conductive cover element.

11. The lithium ion battery according to claim 9 , further comprising an insulating layer between the first substrate and the lid.

12. The lithium ion battery according to claim 1 , wherein:
the lid further comprises a second insulating substrate, the conductive cover element being attached to a first main surface of the second insulating substrate;
a recess is defined in the second insulating substrate; and
the second insulating substrate is attached to the first main surface of the first semiconductor substrate.

13. The lithium ion battery according to claim 10 , wherein the conductive cover element is a conductive foil.

14. The lithium ion battery according to claim 12 , wherein the conductive cover element is a conductive foil and a second main surface of the second insulating substrate is attached to the first main surface of the first semiconductor substrate.

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

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title