Heat Insulation Design for Safer Battery Modules
Here’s PatSnap Eureka !
Summary
Problems
Battery modules in electric vehicles face challenges with heat dissipation and cooling performance due to complex heat transfer paths, leading to electrical performance deterioration and potential ignition or explosion risks from heat generation during charging and discharging.
Innovation solutions
A battery cell assembly is designed with a heat insulating member, such as mica, ceramic wool, or aerogel, placed between battery cells to block heat propagation, along with a support member to enhance assembly efficiency and reduce the heat transfer path, thereby improving heat dissipation efficiency.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a large number of battery cells are mounted in a battery module to increase capacity, then the energy density and power output are improved, but the heat transfer path becomes more complex and heat dissipation performance deteriorates
Why choose this principle:
The patent divides the battery module into multiple battery cell assemblies, where each assembly contains a specific number of battery cells arranged in a structured configuration. This segmentation allows for better heat management by creating modular units with controlled heat transfer paths, resolving the contradiction between increasing cell quantity and maintaining heat dissipation performance.
Principle concept:
If battery cells are arranged closely to simplify module structure, then assembly efficiency is improved, but heat propagation between cells increases ignition risk
Why choose this principle:
The patent introduces heat insulating members as intermediary elements positioned between adjacent battery cells within each assembly. These insulating members act as thermal barriers that prevent direct heat propagation between cells while maintaining the compact structured arrangement, thus resolving the contradiction between structural simplicity and heat isolation.
Application Domain
Data Source
AI summary:
A battery cell assembly is designed with a heat insulating member, such as mica, ceramic wool, or aerogel, placed between battery cells to block heat propagation, along with a support member to enhance assembly efficiency and reduce the heat transfer path, thereby improving heat dissipation efficiency.
Abstract
A battery cell assembly includes a first battery cell, a second battery cell disposed to face the first battery cell, a protective member disposed between the first battery cell and the second battery cell, and a support member coupled to at least one side of the protective member and supporting the protective member. The protective member includes a heat insulating member preventing heat propagation between the first battery cell and the second battery cell.