Electrophoretic deposition of thin film batteries

Patent metadata

Field	Value
Publication number	US-2016118684-A1
Application number	US-201614986637-A
Country	US
Kind code	A1
Filing date	Jan 1, 2016
Priority date	Dec 5, 2010
Publication date	Apr 28, 2016
Grant date	—

Abstract

Methods for forming three-layer thin-film battery (TFB) structures by sequential electrophoretic deposition (EPD) on a single conductive substrate. The TFBs may be two-dimensional or three-dimensional. The sequential EPD includes EPD of a first battery electrode followed by EPD of a porous separator on the first electrode and by EPD of a second battery electrode on the porous separator. In some embodiments of a Li or Li-ion TFB, the separator includes a Li ion conducting solid. In some embodiments of a Li or Li-ion TFB, the separator includes an inorganic porous solid rendered ionically conductive by impregnation with a liquid or polymer. In some embodiments, the TFBs are coated and sealed with an EPDd PEEK layer.

First claim

What is claimed is:

1 . A thin film battery (TFB) comprising two thin-film active material electrodes with opposite polarities separated by a composite ceramic hybrid electrolyte separator that includes an inorganic porous solid, at least one of the electrodes and the separator formed inside a through-hole of a perforated substrate, wherein the porous solid is partially penetrated by at least one of the active material electrodes at an interface therebetween.

2 . The TFB of claim 1 , wherein both electrodes and the separator are formed at least inside the through hole of the perforated substrate.

3 . The TFB of claim 1 , wherein the at least one electrode and the separator form a concentric microbattery structure.

4 . The TFB of claim 2 , wherein the two electrodes and the separator form a concentric microbattery structure.

5 . The TFB of claim 1 , wherein the porous solid comprises ZrO 2 (8% Y 2 O 3 ).

6 . The TFB of claim 1 , wherein the porous solid is a lithium ion conducting solid.

7 . The TFB of claim 1 , wherein the porous solid comprises a glass-ceramic.

8 . The TFB of claim 1 , wherein the porous solid comprises LiAlO 2 .

9 . The TFB of claim 1 , further comprising an external PEEK coating.

10 . The TFB claim 2 , wherein one active material electrode comprises LiFePO 4 and the other active material electrode comprises MCMB.

11 . The TFB claim 3 , wherein one active material electrode comprises LiFePO 4 and the other active material electrode comprises MCMB.

12 . The TFB claim 4 , wherein one active material electrode comprises LiFePO 4 and the other active material electrode comprises MCMB.

13 . The TFB of claim 5 , wherein one active material electrode comprises LiFePO 4 and the other active material electrode comprises MCMB.

14 . The TFB of claim 7 , wherein the glass-ceramic Li 2 O—Al 2 O 3 —SiO 2 —P 2 O 5 —TiO 2 .

15 . The TFB of claim 10 , further comprising a CuS topcoat over the LiFePO 4 .

Assignees

• Univ Ramot

Inventors

• Golodnitsky Diana
• Peled Emanuel
• Nathan Menachem
• Ardel Gilat
• Mazor-Shafir Hadar
• Hadar Roni
• Menkin-Bachbut Svetlana
• Ripenbein Tania
• Freedman Kathrin

Classifications

• H01M50/497

  Ionic conductivity · CPC title

• H01M50/11

  having a chip structure, e.g. micro-sized batteries integrated on chips · CPC title

• H01M50/434

  Ceramics · CPC title

• H01M50/437

  Glass · CPC title

• H01M10/0525

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