Battery Cell Housing With Fluid Channel for Uniform Thermal Control
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Solution Overview
Problem
Inadequate cooling or uneven temperature distribution across battery cell systems can affect storage capacity, power provision rate, or lifespan, necessitating improved temperature management.
Innovation Solution
The integration of a channel within the battery cell housing for cooling and/or heating, utilizing a fluid that can be moved through the channel to absorb and dissipate heat effectively, thereby maintaining optimal temperature conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If battery cells are connected in series or parallel to form battery cell systems, then voltage or current capacity is improved, but temperature distribution becomes uneven and cooling becomes inadequate
Solution Approach 1:
The patent divides the battery cell system into modular units, each with its own cooling channel. By segmenting the cooling system to match the battery configuration, each module can be independently cooled, preventing heat accumulation and ensuring uniform temperature distribution across the entire system regardless of series or parallel connections.
Solution Approach 2:
The patent implements localized cooling channels within each battery cell housing, allowing different regions of the battery system to receive appropriate cooling. This local quality approach ensures that heat is dissipated at its source in each modular unit, maintaining temperature uniformity across the entire battery cell system.
2Temperature
If cooling channels are integrated into battery cell housing, then temperature management is improved, but device complexity increases
Solution Approach 1:
The patent merges the cooling channel directly into the battery cell housing structure, combining two separate components (housing and cooling system) into one integrated unit. This merging approach improves temperature management efficiency while avoiding the complexity of separate cooling systems by making the housing itself the cooling carrier.
Solution Approach 2:
The battery cell housing serves multiple functions: it provides structural protection and simultaneously acts as the cooling channel carrier. This multi-functionality approach allows the housing to perform both mechanical and thermal management roles, improving temperature management without adding separate dedicated cooling components that would increase device complexity.
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
This solution provides enhanced temperature management for battery cell systems, improving performance, lifespan, and safety by ensuring consistent and efficient heat transfer across the battery cells.
Implementation Method 1
Cooling and/or heating can take place by the fluid in the way of conduction. Thereby, the heat transfer is caused by the direct contact of the fluid to the channel, which is cooler or hotter than the fluid because of the surrounding batteries, which have transferred their heat to the material of the channel.
Implementation Method 2
Cooling and/or heating can also take place by the fluid in the way of convection. The liquid can absorb and/or dissipates heat as it circulates through the battery cell.
Data Source
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Figure 6~7
AI summary
A first aspect of the present disclosure is related to a battery cell, comprising: - a housing; - an electrode stack arranged in the housing; wherein the housing comprises a channel configured to comprise a fluid for cooling and/or heating the electrode stack.