Thermal Device for Battery Module Temperature Control
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Summary
Problems
Battery modules used in hybrid and electric vehicles can experience overheating during operation and may be cold during start-up or in start-stop conditions, leading to improper functioning.
Innovation solutions
A thermal device comprising a non-metallic material layer that conducts heat and electricity, paired with metallic and plastic layers, which is disposed around battery cells to regulate temperature through heating and cooling mechanisms.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If battery modules operate during cold start or start-stop conditions, then the battery can provide power, but the battery temperature is too low causing improper functioning
Why choose this principle:
The patent converts the harmful cold temperature condition into a beneficial heating opportunity by using the battery's own current flow to generate heat through resistive heating in the graphite layer, thereby warming the battery to its optimal operating temperature range
Principle concept:
If battery modules operate during cold start or start-stop conditions, then the battery can provide power, but the battery temperature is too low causing improper functioning
Why choose this principle:
The battery system performs self-heating by utilizing its own operational current to warm itself up during cold start conditions, eliminating the need for external heating systems
Application Domain
Data Source
AI summary:
A thermal device comprising a non-metallic material layer that conducts heat and electricity, paired with metallic and plastic layers, which is disposed around battery cells to regulate temperature through heating and cooling mechanisms.
Abstract
A thermal device comprises a first layer of a non-metallic material that is a good conductor of heat and electricity, that includes a first terminal and a second terminal, and that has a first surface and a second surface; a metallic material disposed on the first surface of the first layer; a first plastic layer disposed on the metallic material; and a second plastic layer disposed on the second surface of the first layer. The first plastic layer and the second plastic layer include a plastic material that is a good conductor of heat.