Fiber Fabric Structural Battery Electrode With CNT Conductive Network

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Solution Overview

Problem

Carbon fiber fabrics used as battery electrodes face electrical incompatibility issues when laminated with a matrix to enhance mechanical strength, requiring a continuous ion transport path and load support, which existing technologies have not adequately addressed.

Innovation Solution

A manufacturing method involving a fiber fabric substrate with metal nanoparticle layers and a carbon nanotube layer, optionally with a protective layer, to create a structural battery electrode with improved electrical and mechanical performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a matrix is laminated on carbon fiber fabric to strengthen shear stress, then mechanical properties are improved, but electrical compatibility deteriorates due to the insulating nature of the matrix

Engineering Contradiction:
Improveshear stress strengthVSAvoidelectrical conductivity
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The patent creates a composite structure by laminating a matrix onto carbon fiber fabric, combining the mechanical strength of the matrix with the electrical conductivity of the carbon fiber. This composite approach allows the matrix to provide shear stress reinforcement while the carbon fiber network maintains electrical pathways for battery operation.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The matrix acts as an intermediary layer that bridges the carbon fiber fabric and the electrolyte, providing mechanical support and structural integrity while allowing ionic transport. The matrix enables the system to simultaneously achieve enhanced mechanical properties and maintain electrical functionality through its interaction with the conductive carbon fiber network.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a matrix electrolyte is used to provide continuous ion transport path, then ion transport is improved, but mechanical load support deteriorates due to the liquid state of the electrolyte

Engineering Contradiction:
Improveion transport capabilityVSAvoidmechanical load support
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The matrix is designed with a porous structure that allows continuous ion transport pathways while maintaining mechanical integrity. The porosity enables the liquid electrolyte to permeate and flow freely for ionic conduction, while the solid matrix framework provides the necessary mechanical strength to support tensile and compressive loads.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The system forms a composite where the solid matrix provides mechanical load support and the liquid electrolyte within the porous structure provides ion transport. This composite arrangement allows both functions to coexist, with the matrix skeleton bearing mechanical stresses while the electrolyte-filled pores enable ionic mobility.

Inventive Principle:
Principle #40Composite materials

3Reliability

If carbon fiber fabric is used as electrode, then electrical conductivity is improved, but mechanical strength deteriorates when used alone without matrix lamination

Engineering Contradiction:
Improveelectrical conductivityVSAvoidmechanical strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent creates a composite structure by laminating a matrix onto carbon fiber fabric, combining the electrical conductivity of the carbon fiber with the mechanical strength of the matrix. This composite approach allows the carbon fiber to provide electrical pathways while the matrix provides structural reinforcement.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The carbon fiber fabric serves multiple functions: it provides electrical conductivity for battery operation and serves as a structural substrate for the matrix lamination. The matrix-laminated carbon fiber fabric becomes a multifunctional component that simultaneously addresses electrical and mechanical requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 method results in a structural battery with high capacity, long lifetime, lightweight, and high stability, suitable for applications in unmanned systems and intelligent structures, enhancing energy efficiency and multifunctional system performance.

Implementation Method 1

forming a carbon nanotube layer by providing a carbon source on the metal nanoparticle layer

Methodology Applied
Scientific EffectCatalysis: Catalysis

Implementation Method 2

forming a carbon nanotube layer by providing a carbon source on the metal nanoparticle layer

Methodology Applied
Scientific EffectChemical Vapour Deposition: Chemical Vapour Deposition

Data Source

PatentUS20250323236A1Fiber fabric-based structural battery electrode, method for manufacturing same, and structural battery using same fiber fabric-based structural battery electrode
Publication Date: 2025.10.16 SASUNG POWER CO LTD
  • US20250323236A1 patent drawing
  • US20250323236A1 patent drawing
  • US20250323236A1 patent drawing

AI summary

Provided is a manufacturing method of a structural battery electrode. The structural battery electrode manufacturing method includes preparing a fiber fabric substrate; forming a metal nanoparticle layer by providing metal nanoparticles on the fiber fabric substrate; and forming a carbon nanotube layer by providing a carbon source on the metal nanoparticle layer.