Ceramizing Silicone Composite for Battery Vent Heat Barriers
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Solution Overview
Problem
Existing thermal barrier designs fail to effectively protect against high heat potential in applications such as electric vehicle battery packs and high-temperature cable protection due to increasing heat growth, necessitating improved barrier materials.
Innovation Solution
A composite material comprising a silicone-based matrix with reinforcing and ceramization filler components, including a ceramization filler composition containing a ceramization filler, structure promoter, flux, and flame retardant, which provides a compression set of less than 5% at 50% compressive strain for 22 hours at 100°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional thermal barrier designs are used, then basic thermal protection is provided, but they fail to effectively protect against high heat potential due to increasing heat growth
Solution Approach 1:
The patent employs a composite material system comprising a silicone-based matrix combined with ceramization filler composition. This composite structure provides enhanced thermal barrier properties that conventional single-material designs cannot achieve, effectively protecting against high heat potential through the synergistic effects of the matrix and filler components.
Solution Approach 2:
The invention modifies the thermal and mechanical parameters of the barrier material by incorporating specific ceramization fillers with controlled particle sizes, shapes, and compositions. These parameter changes enable the material to maintain structural integrity and provide effective thermal protection under increasing heat conditions.
2Reliability
If thermal barrier material is used to protect against high temperatures, then thermal protection is improved, but compression set increases under high temperature and strain conditions
Solution Approach 1:
The patent incorporates reinforcing filler components at specific locations and concentrations within the silicone matrix to locally enhance mechanical stability. This localized reinforcement strategy maintains low compression set in critical areas while preserving the overall thermal barrier functionality of the material.
Solution Approach 2:
The composite structure combining silicone matrix with ceramization fillers creates a material system where the filler components provide structural support that reduces compression set, while the matrix maintains flexibility and thermal protection. This composite approach simultaneously addresses both thermal performance and dimensional stability requirements.
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 composite material effectively limits heat transfer and maintains structural integrity under high temperatures, offering enhanced thermal protection and reduced compression set, suitable for use in battery packs and cable protection.
Implementation Method 1
a ceramization filler composition distributed within the silicone-based matrix component. The ceramization filler composition may include a ceramization filler component, a structure promoter component, a flux component, and a flame retardant component
Implementation Method 2
The composite material may have a compression set of not greater than about 5% as measured at 50% compressive strain for 22 hours at 100° C.
Implementation Method 3
The ceramization filler composition may include a ceramization filler component, a structure promoter component, a flux component, and a flame retardant component
Data Source
AI summary
The subject application relates to composite material, composite material layer, and cell vent protection composite with thermal barrier properties. The subject application relates to a composite material that may include a silicone-based matrix component, a reinforcing filler component distributed within the silicone-based matrix component, and a ceramization filler composition distributed within the silicone-based matrix component. The ceramization filler composition may include a ceramization filler component, a structure promoter component, a flux component, and a flame retardant component.