IP Library › Granted Patent US 12,431,302
Granted Patent B2
US 12,431,302 · App. 19/016,362 · Granted Sep 30, 2025

Asymmetric supercapacitor

Inventors: Abdul Ghani Olabi (Sharjah, AE); Mohammad Ali (Sharjah, AE); Pragati Ankush Shinde (Sharjah, AE)
Assignee: UNIVERSITY OF SHARJAH
H01G11/86H01G11/32
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Quick Facts
Patent No.
US 12,431,302
App. No.
19/016,362
Granted
Sep 30, 2025
Kind
B2
Abstract

A structure of an asymmetric supercapacitor and a preparation method thereof is disclosed. In some implementations, the preparation comprises the steps of forming a polyaniline (PANI) nanowire on carbon cloth (CC) substrate (PANI/CC) by polymerization of an aniline, depositing a cobalt-nickel layer double hydroxides (CoNi-LDHs) on the PANI/CC by a hydrothermal process, and calcining of the cobalt-nickel layer double hydroxides (CoNi-LDHs) in the PANI/CC at a high temperature to form a metal carbide (CoC@NiC) on the carbon cloth. The structure of the asymmetric supercapacitor includes a metal carbide (CoC@NiC) as a positive electrode, a tungsten trioxide (WO 3 @C) as a negative electrode, and a poly (vinyl alcohol)/Potassium hydroxide (PVA/KOH) as an electrolyte gel.

Claims (9)

1. An asymmetric supercapacitor comprising:

a positive electrode, wherein the positive electrode comprises CoC@NiC;

a negative electrode, wherein the negative electrode comprises WO 3 @C; and

an electrolyte gel, wherein the electrolyte gel is a poly (vinyl alcohol)/Potassium hydroxide (PVA/KOH).

2. The asymmetric supercapacitor of claim 1 , wherein the asymmetric supercapacitor works in a voltage range of 0-1.6 Volt (V).

3. The asymmetric supercapacitor of claim 1 , wherein the asymmetric supercapacitor delivers a specific energy of 83.55 Wh kg −1 at a specific power of 2048 W kg −1 .

4. The asymmetric supercapacitor of claim 1 , wherein the asymmetric supercapacitor shows a higher cycle life with capacity retention of 91.3% over 10,000 cycles.

5. The asymmetric supercapacitor of claim 1 , wherein a Columbic efficiency of the asymmetric supercapacitor is about 100%.

6. The asymmetric supercapacitor of claim 1 , wherein the asymmetric supercapacitor is used in solar energy storage, a portable electronic device, an automobile, or a transportation device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 25, 2025
From: OLABI, ABDUL GHANI; ALI, MOHAMMAD; SHINDE, PRAGATI ANKUSH
To: UNIVERSITY OF SHARJAH
Reel/Frame 070314/0841 →
Continuity (2)
Division 18122403 · Mar 16, 2023
Related Publication 20250149264A1 · May 8, 2025
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