Fluorinated Ether Coolants for Direct Battery Cooling
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Solution Overview
Problem
Current thermal management fluids for lithium-ion batteries and electronic systems face challenges due to high global warming potential, poor thermal properties, and inability to be formulated with hydrocarbon-based fluids, necessitating the development of improved dielectric thermal management fluids that are non-conductive, meet coolant specifications, and are environmentally friendly.
Innovation Solution
The development of fluorinated ether compounds with specific structural formulas, which can be used in thermal management fluids, providing improved thermal and electrical conductivity while being environmentally benign, and suitable for direct cooling of lithium-ion batteries and electronic systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional thermal management fluids are used, then heat dissipation is achieved, but global warming potential increases and thermal properties are poor
Solution Approach 1:
The patent changes the chemical composition parameters by introducing fluorinated ether compounds with specific molecular structures (Formula I) that have low GWP values while maintaining or improving thermal properties including thermal conductivity and specific heat capacity
Solution Approach 2:
The patent creates composite thermal management fluids by combining fluorinated ether compounds with hydrocarbon-based fluids, achieving synergistic effects that simultaneously reduce environmental impact and enhance thermal performance
2Reliability
If dielectric thermal management fluids are used for direct cooling, then electrical non-conductivity is achieved, but thermal conductivity decreases
Solution Approach 1:
The patent modifies the dielectric fluid composition by incorporating fluorinated ether compounds that possess both dielectric properties (electrical non-conductivity) and enhanced thermal properties, changing the parameter balance to achieve both requirements simultaneously
3Temperature
If fluorinated thermal management fluids are used, then thermal conductivity is improved, but environmental friendliness decreases
Solution Approach 1:
The patent changes the fluorinated compound structure to have lower GWP values while maintaining thermal conductivity, using specific fluorinated ether molecular structures that reduce environmental harm without sacrificing thermal performance
4Ease of manufacture
If hydrocarbon-based thermal management fluids are used, then cost-effectiveness is improved, but compatibility with dielectric requirements is poor
Solution Approach 1:
The patent creates composite formulations combining hydrocarbon-based fluids with fluorinated ether compounds, maintaining the cost-effectiveness of hydrocarbons while adding the dielectric properties needed for direct cooling applications
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 fluorinated ether compounds offer enhanced thermal management capabilities with high flash points, low viscosity, and low global warming potential, effectively addressing the limitations of existing fluids and ensuring efficient heat dissipation in electronic systems.
Implementation Method 1
The fluorinated ether compounds offer enhanced thermal management capabilities with high flash points, low viscosity, and low global warming potential, effectively addressing the limitations of existing fluids and ensuring efficient heat dissipation in electronic systems
Data Source
AI summary
This disclosure relates generally to fluorinated ether compounds and the synthesis thereof. More particularly, this disclosure relates to fluorinated ether based thermal management fluids suitable for use managing heat in battery systems through direct cooling, such as lithium-ion batteries used in electric vehicles, electric motors, and power electronics, methods of using such thermal management fluids, and systems including such thermal management systems.