Battery Cell Layout With Bottom Terminal for Collision Stress Control
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Solution Overview
Problem
Existing battery designs face issues with low energy density, poor rigidity, and safety concerns due to uneven stress distribution during collisions, leading to potential damage and safety accidents in electrical apparatuses.
Innovation Solution
A battery design featuring a battery cell accommodated within a box with the electrode terminal oriented towards the bottom wall, enhancing safety and energy density by improving structural integrity and stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery cell is positioned with the electrode terminal towards the bottom wall, then the safety and rigidity are improved, but the device complexity increases
Solution Approach 1:
The patent inverts the conventional battery cell positioning by orienting the electrode terminal towards the bottom wall instead of the top or side. This inversion allows the battery to directly bear loads from above through the rigid box structure, improving safety and rigidity while maintaining a relatively simple overall structure.
2Strength
If the battery cell is fixed within the accommodating cavity, then the rigidity and stress distribution are improved, but the ease of manufacture decreases
Solution Approach 1:
The patent merges the battery cell fixing function with the accommodating cavity structure itself. The box serves as both the protective enclosure and the fixing structure, eliminating the need for separate complex fixing mechanisms while improving stress distribution and rigidity throughout the entire assembly.
3Quantity of substance
If the electrode terminal is provided towards the bottom wall, then the energy density is improved, but the ease of operation decreases
Solution Approach 1:
The patent changes the dimensional arrangement by positioning the electrode terminal in the vertical dimension (towards the bottom wall) rather than horizontally. This vertical arrangement optimizes space utilization and energy density while the terminal remains accessible through the bottom of the battery assembly.
Data Source
AI summary
A battery and an electrical apparatus are provided. The battery comprises a box and a battery cell, wherein an accommodating cavity is provided within the box, the accommodating cavity comprises a top wall and a bottom wall which are oppositely arranged in a vertical direction, the battery cell is provided within the accommodating cavity, and comprises an electrode assembly and an electrode terminal, wherein the electrode assembly is electrically connected to the electrode terminal, the battery cell is fixed within the accommodating cavity, and the electrode terminal is arranged towards the bottom wall of the accommodating cavity.