Composite Battery Housing for Heat Dissipation and Electrical Insulation
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Solution Overview
Problem
Existing battery module cases lack adequate mechanical, thermal, and electrical stability, particularly in high-capacity applications, necessitating improved protection and cooling characteristics.
Innovation Solution
The battery housing incorporates carbon fiber reinforced plastic (CFRP) and glass fiber reinforced plastic (GFRP) sheets to enhance mechanical strength, thermal conductivity, and electrical insulation, with specific configurations for improved cooling and insulation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a metal sheet is used for the battery module case to secure mechanical protection and heat dissipation, then thermal conductivity and mechanical strength are improved, but electrical insulation properties deteriorate
Solution Approach 1:
The patent applies composite materials by combining carbon fiber reinforced plastic (CFRP) and glass fiber reinforced plastic (GFRP) sheets. The CFRP provides thermal conductivity for heat dissipation, while the GFRP provides electrical insulation properties. This composite structure resolves the contradiction by integrating both thermal management and electrical insulation functions in a single case design, eliminating the need for separate metal components with insulation coatings.
2Reliability
If a plastic sheet is used for the battery module case, then electrical insulation is improved, but mechanical strength and heat dissipation deteriorate
Solution Approach 1:
The patent uses carbon fiber reinforced plastic (CFRP) which combines plastic matrix with carbon fiber reinforcement. The carbon fibers provide enhanced mechanical strength and thermal conductivity, while the plastic matrix maintains electrical insulation properties. This composite material simultaneously improves mechanical protection and heat dissipation while preserving electrical insulation, resolving the contradictions in all three parameters.
3Stability of the object's composition
If the battery module case is designed to protect from mechanical shocks and thermal influences, then mechanical stability is improved, but device complexity increases due to multiple components
Solution Approach 1:
The patent merges multiple functions into a single battery module case structure. The case integrates mechanical protection, thermal management, and electrical insulation functions into one unified component rather than using separate layers or components for each function. This reduces device complexity while maintaining comprehensive protection and management capabilities through the sophisticated CFRP-GFRP composite design.
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 solution provides a battery housing with enhanced mechanical stability, thermal management, and electrical insulation, preventing damage from external shocks and temperature increases while maintaining electrical stability.
Implementation Method 1
a first piece of any of the bottom part, the first sidewall part and the second sidewall part includes a carbon fiber reinforced plastic (CFRP) sheet
Implementation Method 2
a second piece of any of the bottom part, the first sidewall part and the second sidewall part includes a glass fiber reinforced plastic (GFRP) sheet
Data Source
AI summary
A battery housing according to exemplary embodiments may include a bottom part, and a first sidewall part and a second sidewall part which are connected to the bottom part and face each other. Any one of the bottom part, the first sidewall part, and the second sidewall part may include a carbon fiber reinforced plastic (CFRP) sheet, and another of the bottom part, the first sidewall part, and the second sidewall part may include a glass fiber reinforced plastic (GFRP) sheet.