Battery Cell Heat-Conducting Plate Layout for Force Uniformity
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Solution Overview
Problem
The non-uniform forces between battery cells in a battery system can lead to cell failure, compromising the reliability of the battery.
Innovation Solution
A battery design incorporating a heat conducting plate that extends between adjacent rows of battery units, directly facing the largest side walls of the cells, with a cavity for stress buffering and a supporting assembly to enhance anti-deformation ability and temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If battery cells are arranged in sequence to form a battery system, then the battery can provide sufficient power capacity, but non-uniform forces between battery cells occur leading to cell failure
Solution Approach 1:
The battery system is segmented into multiple rows of battery units, with each row containing multiple battery cells arranged in sequence. This segmentation allows for better force distribution and reduces non-uniform forces on individual cells while maintaining overall power capacity.
Solution Approach 2:
A heat conducting plate is introduced as an intermediary component between adjacent rows of battery units. This plate directly faces the first side walls of battery cells and provides mechanical support to enhance anti-deformation ability, thereby reducing cell failure caused by non-uniform forces.
2Reliability
If a heat conducting plate is added to enhance temperature control and anti-deformation ability, then battery reliability improves, but device complexity increases
Solution Approach 1:
The heat conducting plate serves multiple functions simultaneously: it conducts heat away from battery cells for temperature control, provides mechanical support to enhance anti-deformation ability, and acts as a structural connector between adjacent rows of battery units. This multi-functionality reduces the need for separate components.
Solution Approach 2:
The heat conducting plate combines thermal management and mechanical support functions into a single integrated component, merging what could have been separate systems into one unified structure that reduces overall 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
The design improves the anti-deformation ability of battery cells, reducing the likelihood of failure due to non-uniform forces and enhancing temperature control, thereby increasing the reliability of the battery system.
Implementation Method 1
the heat conducting plate extends between adjacent rows of battery units; and the heat conducting plate directly faces the first side walls of at least some of the battery cells of adjacent battery units
Data Source
AI summary
A battery and an electrical apparatus. The battery includes a plurality of rows of battery units and a heat exchange assembly. The plurality of rows of battery units are arranged in a first direction. Each row of battery units comprises a plurality of battery cells arranged in sequence in a second direction. Each battery cell includes a first side wall. The first side wall is the side wall with the largest area. The first direction and the second direction are perpendicular to each other. The heat exchange assembly includes a heat conducting plate. The heat conducting plate extends between adjacent rows of battery units. The heat conducting plate directly faces the first side walls of at least some of the adjacent battery cells of adjacent battery units.