Anthracene-Based Polymer Electrode for Supercapacitors

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Solution Overview

Problem

Current supercapacitors face limitations in achieving high specific capacitance and efficient charge and discharge characteristics, particularly when using traditional electrode materials.

Innovation Solution

An electrode comprising a current collector with a film made from a combination of carbon materials, metal oxides, conductive polymers, and organic semiconductor materials, specifically an anthracene-based polymer, which enhances electrical conductivity and stability, along with a surfactant for uniform dispersion, is developed. The manufacturing method involves mixing these components with a solvent and coating them on a current collector, followed by heat treatment to form a supercapacitor with improved performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional electrode materials are used in supercapacitors, then manufacturing is simpler and cost is lower, but specific capacitance and charge-discharge characteristics are limited

Engineering Contradiction:
Improvespecific capacitanceVSAvoidelectrode structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies composite materials by combining organic semiconductor materials (such as anthracene-based polymers) with conventional electrode materials like carbon materials, metal oxides, or conductive polymers. This composite structure enables the electrode to achieve high specific capacitance and excellent charge-discharge characteristics while maintaining structural integrity and electrochemical performance.

Inventive Principle:
Principle #40Composite materials

2Productivity

If organic semiconductor material is added to the electrode, then charge transport efficiency improves, but manufacturing process becomes more complex

Engineering Contradiction:
Improvecharge transport efficiencyVSAvoidmanufacturing process
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent merges the organic semiconductor material with the electrode structure through a coating process where the organic material is applied as a film on the electrode surface. This combining approach enhances charge transport efficiency by providing additional charge carriers and improving electron mobility, while the coating method keeps the manufacturing process relatively simple and scalable.

Inventive Principle:
Principle #5Merging (Combining)

3Duration of action of stationary object

If anthracene-based polymer is used, then thermal stability and lifespan increase, but material cost and processing difficulty increase

Engineering Contradiction:
ImprovelifespanVSAvoidprocessing difficulty
Core Design Contradiction:
Duration of action of stationary objectVSEase of manufacture

Solution Approach 1:

The patent utilizes parameter changes by controlling the thermal processing conditions during electrode manufacturing. The anthracene-based polymer is processed at specific temperature ranges (80-120°C for glass transition, 250-300°C for thermal decomposition) to achieve optimal film formation and electrochemical performance. By carefully controlling these thermal parameters, the patent achieves high thermal stability and extended lifespan while managing processing complexity.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The resulting supercapacitor exhibits large specific capacitance and excellent charge and discharge characteristics, with the anthracene-based polymer providing thermal stability and long lifespan, and the carbon material ensuring efficient ion exchange and increased surface area.

Implementation Method 1

an organic semiconductor material, specifically an anthracene-based polymer, which enhances electrical conductivity

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

The carbon material ensuring efficient ion exchange and increased surface area

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 3

along with a surfactant for uniform dispersion

Methodology Applied
Scientific EffectSurface tension reduction: Surfactant

Implementation Method 4

The manufacturing method involves mixing these components with a solvent and coating them on a current collector, followed by heat treatment to form a supercapacitor

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentUS10304637B2Electrode comprising organic semiconductor material, method for manufacturing electrode, and supercapacitor comprising electrode
Publication Date: 2019.05.28 UNIVERSITY INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
  • US10304637B2 patent drawing
  • US10304637B2 patent drawing
  • US10304637B2 patent drawing

AI summary

The present invention relates to: an electrode comprising a current collector and a film located on the current collector, wherein the film comprises an organic semiconductor material and one selected from a carbon material, a metal oxide and a conductive polymer; a method for manufacturing the electrode; and a supercapacitor comprising the electrode.