Lithium Battery, Method for Manufacturing a Lithium Battery, Integrated Circuit and Method of Manufacturing an Integrated Circuit

Patent metadata

Field	Value
Publication number	US-2016164134-A1
Application number	US-201615040085-A
Country	US
Kind code	A1
Filing date	Feb 10, 2016
Priority date	Nov 21, 2011
Publication date	Jun 9, 2016
Grant date	—

Abstract

A lithium battery includes a cathode, an anode integrally formed within a silicon substrate, wherein a surface portion of the silicon substrate is patterned to form a plurality of sub-structures, and an electrolyte.

First claim

1 - 27 . (canceled)

28 . A lithium battery, comprising:
a cathode; an anode integrally formed within a silicon substrate, wherein a surface portion of the silicon substrate is patterned to form a plurality of sub-structures; and an electrolyte.

29 . The lithium battery of claim 28 , wherein a groove is formed in the substrate, and the anode and the electrolyte are arranged in the groove.

30 . The lithium battery of claim 28 , wherein the sub-structures are three-dimensional.

31 . The lithium battery of claim 28 , wherein the sub-structures comprise mesopores.

32 . The lithium battery of claim 28 , wherein the surface portion of the silicon substrate is patterned to form a plurality of grooves or columns.

33 . The lithium battery of claim 32 , wherein a surface of the grooves or columns is patterned to form a plurality of further sub-structures.

34 . The lithium battery of claim 33 , wherein the further sub-structures comprise mesopores.

35 . An integrated circuit, comprising the lithium battery of claim 28 and a circuit element.

36 . The integrated circuit of claim 35 , wherein the circuit element is formed in the silicon substrate.

37 . The integrated circuit of claim 35 , wherein the circuit element is formed in a further semiconductor substrate separate from the silicon substrate.

38 . The integrated circuit of claim 35 , wherein the circuit element is selected from the group consisting of an energy receiving device, an energy emitting device, a signal processing circuit, an information processing circuit, an information storing circuit, a transistor, a capacitor, a resistor, a MEMS (micro-electro-mechanical system) device, a sensor, an actuator, an energy harvester, a device for converting energy, a display device, a video device, an audio device, a music player and components of any of the devices.

39 . An electronic device, comprising the integrated circuit of claim 35 .

40 . The electronic device of claim 39 , wherein the electronic device is selected from the group consisting of a sensor, an actuator, an RFID (radio frequency identification device) tag and a smartcard.

41 . The electronic device of claim 39 , further comprising an electric circuit.

42 . A method of manufacturing a lithium battery, the method comprising:
patterning a surface portion of a silicon substrate to form a plurality of sub-structures; forming an anode integrally within the silicon substrate in the patterned surface portion; forming a cathode so that a cavity is formed between the cathode and the anode; and filling an electrolyte in the cavity.

43 . The method of claim 42 , further comprising forming a groove in the substrate.

44 . The method of claim 42 , wherein forming the sub-structures comprises forming mesopores.

45 . The method of claim 42 , wherein forming the sub-structures comprises forming a plurality of grooves or columns.

Assignees

• Infineon Technologies Austria

Inventors

• Forster Magdalena
• Schmut Katharina
• Goller Bernhard
• Zieger Guenter
• Sorger Michael
• Schweizer Philemon
• Sternad Michael

Classifications

• H10W72/5363

  the connected ends being wedge-shaped · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M10/0585

  of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title

• Y10T29/49115

  including coating or impregnating · CPC title