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1. WO2001080338 - PROCEDES FONDES SUR UNE TECHNIQUE A JET D'ENCRE ET DESTINES A LA FABRICATION DE MICROBATTERIES

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Having thus described the preferred embodiment, the invention is now claimed to be:

1. A method of fabricating a microbattery, comprising the steps of:
depositing droplets of a first electrode material onto a substrate using a microdispensing device;
depositing droplets of an electrolyte material onto said deposited electrode material using said microdispensing device to form an integral microstructure.

2. The method of claim 1, comprising the additional steps of:
depositing droplets of a second electrode material onto the microstructure using the microdispensing device; and
forming an integral microbattery structure.

3. The method of claim 1 wherein the microdispensing device is an ink-jet printer.

4. The method of claim 3, comprising the additional steps of:
filling a first ink-jet cartridge with a cathode material;
filling a second ink-jet cartridge with the electrolyte material;
filling a third ink-jet cartridge with an anode material;
sequentially dispensing droplets having suitable rheological properties from the first, second and third ink-jet cartridges to form a stratified microbattery structure.

5. The method of claim 4 wherein the substrate is a planar surface.

6. The method of claim 4 wherein the substrate defines a cavity therein into which the ink-jet cartridge materials are sequentially dispensed.

7. The method of claim 6 comprising the additional steps of: sequentially dispensing droplets of additional cathode, electrolyte and anode materials from the first, second and third ink-jet cartridges over the stratified microbattery structure to form stacked microbatteries for increases voltage.

8. The method of claim 7 comprising the additional step of:
forming a plurality of stacked microbatteries in a plurality of cavities defined in the substrate;
connecting the stacked microbatteries using a metallic interconnector.

9. The method of claim 8 comprising the additional step of:
dispensing droplets of the metallic interconnector from a fourth ink-jet cartridge filled with the metallic material.

10. A method of fabricating a microbattery, comprising the steps of:
depositing a first electrode onto a substrate using an ink-jet printer:
depositing an electrolyte onto the electrode using an ink-jet
printer;
depositing a second electrode onto said electrolyte using an ink-jet printer to fabricate an integrated electrochemical cell.

11. The method of claim 10, including the additional step of:
controlling a microdispersion of particles deposited by the ink-jet printer.

12. The method of claim 10, including the additional step of:
functioning the electrolyte as a separator as well as electrolyte.

13. The method of claim 10, including the additional step of:
sequentially depositing a first electrode, an electrolyte and a second electrode on the microbattery of claim 1 to form a stacked microbattery arrangement.

14. The method of claim 10, wherein the steps of depositing occur in a cavity.

15. The method of claim 10, wherein the steps of depositing occur in a linear arrangement.

16. A microbattery formed according to the method of claim 1.

17. The method of claim 10, including the additional step of:
depositing an interconnect on the second electrode to interconnect with another using a connector.

18. A microbattery comprising:
an anode, electrolyte, and cathode all formed by an ink-jet printing process such that the cathode and anode electrolyte are integrated as a single unit.