Aerogel Composite Structure for Compression-Resistant Insulation

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Solution Overview

Problem

Aerogel structures collapse under pressure, leading to significant degradation of heat insulation properties when exposed to pressurization environments.

Innovation Solution

An aerogel composite comprising a fiber substrate and aerogel with specific pore structures and densities that maintain heat insulation properties even under compression, with heat transmission coefficients varying within defined limits across various pressure applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If aerogel structure is used for heat insulation, then thermal conductivity is reduced (heat insulation improved), but structural stability under pressure deteriorates

Engineering Contradiction:

Improveheat insulation performanceVSAvoidstructural stability under pressure

Core Design Contradiction:

Loss of energyVSStability of the object's composition

Solution Approach 1:

The patent modifies the aerogel structure by introducing a hierarchical pore system with specific pore size distributions (micropores <2nm, mesopores 2-50nm, macropores >50nm) and controls the pore volume ratios to maintain structural stability while preserving thermal insulation performance under compression

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite aerogel structure combining multiple pore size ranges and integrating the aerogel with a fiber substrate to form a hybrid material that maintains both insulation properties and mechanical stability under pressure

Inventive Principle:

Principle #40Composite materials

2Strength

If aerogel is compressed to maintain structural integrity, then mechanical strength is improved, but heat insulation properties deteriorate

Engineering Contradiction:

Improvemechanical strength under compressionVSAvoidheat insulation performance

Core Design Contradiction:

StrengthVSLoss of energy

Solution Approach 1:

The patent optimizes the pore size distribution and volume ratios to create a compressible yet insulating structure, where the hierarchical pore system allows controlled compression while maintaining thermal performance within acceptable limits (heat transmission coefficient increase ≤3 times)

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent utilizes a multi-scale porous structure with micropores, mesopores, and macropores that can accommodate compression forces while preserving the thermal insulation mechanism through maintained pore architecture and trapped gas phases

Inventive Principle:

Principle #31Porous materials

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 aerogel composite maintains excellent heat insulation performance without significant degradation even when compressed, ensuring consistent thermal conductivity across different pressure conditions.

Implementation Method 1

An aerogel is a super-porous, high specific surface area (≥500 m2/g) material having a three-dimensional network structure, and thus, has excellent heat insulation properties due to a low heat transmission coefficient

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP4725928A1Aerogel composite

Publication Date: 2026.04.15 LG CHEM LTD

AI summary

The present invention relates to an aerogel composite which, when applied as an insulation material to a battery, an electronic device, a vehicle, an industrial device, a structure, or the like, maintains an excellent level of insulation even when subjected to compression deformation due to pressure applied for various reasons.