Battery Cell Structure With Heat-Conductive Wall Fixing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing batteries face challenges in improving energy density while ensuring safety and thermal management, with poor structural rigidity leading to potential safety accidents and inefficient heat dissipation.
Innovation Solution
A battery design featuring a thermally conductive member connected to the first wall of the battery cell for effective heat exchange and a fixing member to enhance structural strength, ensuring improved thermal management and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the battery structure is simplified to improve manufacturing ease, then the manufacturing cost decreases, but the structural rigidity deteriorates leading to poor load-bearing capacity
Solution Approach 1:
The patent employs composite material structures in the battery housing and internal components, combining materials with different properties to achieve both structural strength and manufacturing feasibility. The housing uses reinforced composite materials that provide high rigidity while maintaining ease of molding and assembly.
Solution Approach 2:
The battery structure is divided into modular segments including the housing, lid, and internal compartments that can be manufactured separately and assembled. This segmentation allows each component to be optimized for its specific function while simplifying the overall manufacturing process and maintaining structural integrity through standardized connection interfaces.
2Quantity of substance
If energy density is increased by reducing spacing between components, then the battery capacity improves, but thermal management performance deteriorates due to insufficient heat dissipation space
Solution Approach 1:
The patent implements local quality optimization by providing enhanced cooling channels and thermal management structures specifically in high-heat-generation areas near the battery cells, while maintaining compact spacing in low-heat areas. This localized approach allows high energy density overall while ensuring adequate heat dissipation where needed.
Solution Approach 2:
The patent introduces thermal management intermediaries such as cooling plates, heat dissipation channels, and thermal conductive materials positioned between battery cells to facilitate heat transfer. These intermediary structures enable compact cell spacing while maintaining effective thermal management through enhanced heat conduction and convection pathways.
3Weight of moving object
If the battery housing is made thinner to reduce weight, then the overall battery weight decreases, but the safety and structural integrity deteriorate
Solution Approach 1:
The patent uses high-strength composite materials and optimized material compositions in the housing that provide enhanced strength-to-weight ratio. These composite structures maintain safety and structural integrity with reduced thickness compared to traditional materials, achieving weight reduction without compromising reliability.
Solution Approach 2:
The patent incorporates curved and rounded structural features in the housing design that distribute stress more effectively than sharp corners. The curved reinforcement ribs and rounded corners in the thinner housing enhance structural integrity and safety while maintaining reduced weight, as the geometric curvature provides inherent stress distribution without requiring additional material.
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 solution enhances the energy density and safety of batteries by facilitating efficient heat conduction and structural integrity, thereby preventing safety accidents and extending battery lifespan.
Implementation Method 1
a thermally conductive member arranged in the accommodating cavity, the thermally conductive member being arranged opposite and thermally conductively connected to the first wall to perform heat exchange with the battery cell
Data Source
AI summary
A battery and an electrical apparatus are provided. The battery includes a box, a battery cell, a thermally conductive member and a fixing member. The battery cell is accommodated in an accommodating cavity of the box. The battery cell includes a first wall and a second wall, there is an included angle between the first wall and the second wall, and the area of the first wall is greater than that of the second wall. The thermally conductive member is arranged in the accommodating cavity, the thermally conductive member is arranged opposite and thermally conductively connected to the first wall to perform heat exchange with the battery cell. The fixing member is connected to the second wall and the box so as to fix the battery cell in the accommodating cavity.