US 12391800 B1Patent grantUnited States

Conductive Polymer Supercapacitor Electrodes

Official patent title

Tetraphenylethene-based polymers for supercapacitors

Arabic title: بوليمرات قائمة على رباعي فينيل الإيثين للمكثفات الفائقة

Invention

Problem

Conducting-polymer supercapacitor materials can have limited energy storage, poor cycle stability, structural degradation during repeated charging, or insufficient mechanical strength.

Why it matters

A tunable organic polymer could broaden electrode-material options for rapid energy storage, but independently reproduced capacitance, cycling, rate capability, safety, and device-scale behavior are needed.

Approach

The patent describes tetraphenylethene-derived repeating-unit polymers, their condensation synthesis, and a supercapacitor stack using polymer, carbon black, and PVDF between nickel-foam electrodes.

Who may benefit

Potential beneficiaries include supercapacitor developers, conductive-polymer researchers, energy-storage laboratories, electrode-formulation companies, and manufacturers evaluating organic active materials on nickel foam.

Potential value

The disclosure integrates defined tetraphenylethene polymer structures, synthesis conditions, particle and bandgap ranges, electrode ingredients, film deposition, and claimed electrochemical ranges in one device concept.

Background

Supercapacitors store charge electrostatically or through rapid faradaic processes and are used where high power and frequent cycling are valuable. Their energy density can be lower than batteries, motivating new electrode materials. Conducting polymers such as polyaniline, polypyrrole, and PEDOT offer tunable electrical behavior, but repeated charge-discharge can cause structural change, capacity loss, or mechanical weakness. Conjugated microporous and covalent-organic polymers add porosity and electroactive groups, yet reported capacitance and cycling performance still vary substantially by structure and formulation.

Technology overview

The polymer contains repeating units of Formula (1), Formula (2), or both and has claimed bandgap, particle-size, and capacitance ranges. Dialdehyde or tetraaldehyde precursors react with 1,5-diaminonaphthalene in an alcohol, halogenated solvent, and organic acid at 100–150 °C. For the device, a slurry containing 60–80 wt.% polymer, 15–25 wt.% carbon black, and 5–15 wt.% PVDF is deposited as a uniform film between nickel-foam electrodes. Claims state specific-capacity and 5,000-cycle retention values.

Potential applications

Potential active polymer for laboratory supercapacitor electrodes.
Potential nickel-foam energy-storage device research.
Potential study of tetraphenylethene polymer structure-property relationships.
Potential polymer/carbon-black/PVDF electrode formulation development.

Evidence-supported advantages

Provides two defined repeating-unit architectures.
Describes both polymer synthesis and device assembly.
Specifies polymer, carbon-black, and PVDF composition ranges.
Claims capacitance, specific-capacity, and cycling-retention ranges.

Development stage

Patent publication describing polymer synthesis, device assembly, and electrochemical testing; independent validation and commercialization were not established.

Commercial opportunity

The polymers may interest supercapacitor and specialty-polymer developers. Advancement requires independent synthesis reproducibility, molecular and impurity characterization, electrode loading control, full-cell capacitance and energy data, rate performance, equivalent-series resistance, long-cycle testing, self-discharge, temperature behavior, electrolyte compatibility, safety, solvent recovery, scale-up yield, and cost benchmarking.

Patent classifications

WIPO IPC

C08G73/02Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
H01G11/54Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices

CPC

C08G73/0206Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
H01G11/84Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
C08G12/08Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
H01G11/54Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
H01G11/48Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
H01G11/86Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices

Inventors

First inventorHani Nasser Abdelhamid
InventorAbdelreheem Abdelfatah Saddik

Keywords

tetraphenylethene
supercapacitor
conductive polymer
nickel foam
carbon black
PVDF
capacitance
energy storage

Patent document and drawings

The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.