Devices and methods for high voltage and solar applications

Patent metadata

Field	Value
Publication number	US-2025014839-A1
Application number	US-202418581504-A
Country	US
Kind code	A1
Filing date	Feb 20, 2024
Priority date	Mar 23, 2016
Publication date	Jan 9, 2025
Grant date	—

Abstract

Provided herein are devices comprising one or more cells, and methods for fabrication thereof. The devices may be electrochemical devices. The devices may include three-dimensional supercapacitors. The devices may be microdevices such as, for example, microsupercapacitors. In some embodiments, the devices are three-dimensional hybrid microsupercapacitors. The devices may be configured for high voltage applications. In some embodiments, the devices are high voltage microsupercapacitors. In certain embodiments, the devices are high voltage asymmetric microsupercapacitors. In some embodiments, the devices are integrated microsupercapacitors for high voltage applications.

First claim

What is claimed is:

1 . A supercapacitor comprising:
an array of supercapacitor cells comprising at least one hybrid supercapacitor cell comprising:
at least one electrode comprising:
(i) a carbonaceous material and
(ii) a pseudocapacitive metal or metal oxide material,

wherein the array of supercapacitor cells generates an output voltage of about 5 V to about 100 V.

2 . The supercapacitor of claim 1 , wherein the at least one hybrid supercapacitor cell comprises at least one electrode comprising an interconnected corrugated carbon-based network (ICCN) and MnO 2 .

3 . The supercapacitor of claim 1 , wherein the at least one hybrid supercapacitor cell comprises symmetric or asymmetric electrodes.

4 . The supercapacitor of claim 1 , wherein the array of supercapacitor cells is arranged in an interdigitated structure.

5 . The supercapacitor of claim 4 , wherein the array of supercapacitor cells has a capacitance per footprint of about 250 mF/cm 2 to about 600 mF/cm 2 .

6 . The supercapacitor of claim 1 , wherein the carbonaceous material comprises a three-dimensional interconnected corrugated carbon-based network (ICCN).

7 . The supercapacitor of claim 6 , wherein the ICCN comprises a plurality of expanded and interconnected carbon layers.

8 . The supercapacitor of claim 1 , wherein the pseudocapacitive material comprises ultrathin nanoflakes up to 20 nm thick.

9 . The supercapacitor of claim 1 , wherein the pseudocapacitive material comprises pseudocapacitive nanostructures comprising MnO 2 , RuO 2 , Co 3 O 4 , NiO, Fe 2 O 3 , CuO, MoO 3 , V 2 O 5 , Ni(OH) 2 , or any combination thereof.

10 . A method for fabricating a supercapacitor comprising:
forming at least one hybrid supercapacitor cell comprising laser scribing, wherein the at least one hybrid supercapacitor cell comprises:
at least one electrode comprising:
(i) a carbonaceous material and
(ii) a pseudocapacitive metal or metal oxide material.

11 . The method of claim 10 , wherein the method comprises forming electrodes comprising LightScribe writing on a film.

12 . The method of claim 11 , wherein at least one of the electrodes is configured to store charge via one or more non-Faradaic processes.

13 . The method of claim 12 , wherein the at least one of the electrodes comprises a pseudocapacitive material configured to store charge via the one or more Faradaic processes.

14 . The method of claim 10 , wherein the carbonaceous material comprises a three-dimensional interconnected corrugated carbon-based network (ICCN).

15 . The method of claim 14 , wherein the ICCN comprises a plurality of expanded and interconnected carbon layers.

16 . The method of claim 10 , wherein the pseudocapacitive material comprises ultrathin nanoflakes up to 20 nm thick.

17 . The method of claim 10 , wherein the pseudocapacitive material comprises pseudocapacitive nanostructures comprising MnO 2 , RuO 2 , Co 3 O 4 , NiO, Fe 2 O 3 , CuO, MoO 3 , V 2 O 5 , Ni(OH) 2 , or any combination thereof.

18 . The method of claim 10 , wherein the at least one hybrid supercapacitor cell comprises at least one electrode comprising an interconnected corrugated carbon-based network (ICCN) and MnO 2 .

19 . The method of claim 10 , wherein the at least one hybrid supercapacitor cell comprises symmetric or asymmetric electrodes.

20 . The method of claim 10 , wherein the light scribing is performed by a light beam the wavelength of which is about 350 nanometers (nm) to about 1,450 nanometers.

Assignees

• Univ California
• Nanotech Energy Inc

Inventors

• El-Kady Maher F
• Kaner Richard B
• Kavanaugh Jack

Classifications

• H01M12/00

  Hybrid cells; Manufacture thereof (hybrid capacitors H01G11/00) · CPC title

• H01G11/46

  Metal oxides · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01G11/04

  Hybrid capacitors · CPC title