Battery Cell Layout for Exposed Terminal Maintenance Access
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Solution Overview
Problem
The existing adhesive bonding method for fixing battery cells within a box is inconvenient for maintenance and inspection, especially when electrode terminals extend from the top and bottom, as it does not allow for easy access or exposure during maintenance processes.
Innovation Solution
The battery design includes a battery cell with a first surface having an electrode terminal and a second surface connected to the box, where the second surface intersects with a third direction, ensuring the electrode terminal is fully exposed when the box is opened, allowing for maintenance and inspection without separating the battery cell, and optimizing the arrangement to improve energy density and installation convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive bonding method is used to fix battery cells to the box, then the battery cells are securely fixed, but maintenance and inspection become inconvenient because electrode terminals are not easily accessible
Solution Approach 1:
The patent changes the orientation of the battery cell from a horizontal arrangement (where terminals extend top-bottom) to a vertical arrangement (where terminals extend front-back along the third direction). This dimensional reorientation allows the electrode terminals to be accessible from the front when the box is opened, solving the accessibility problem while maintaining secure fixation through the vertical mounting configuration
Solution Approach 2:
Instead of having electrode terminals extend from the top and bottom surfaces of the battery cell, the patent inverts this configuration by having terminals extend from the front and back surfaces (along the third direction). This inversion allows terminals to be exposed and accessible when the box is opened from the front, eliminating the need to separate the battery cell from the box for terminal access
2Device complexity
If battery cells are arranged with terminals extending from top and bottom, then the structural design is simplified, but the electrode terminals are not fully exposed when the box is opened, requiring separation for maintenance
Solution Approach 1:
The patent transitions from a two-dimensional top-bottom terminal arrangement to a three-dimensional front-back terminal arrangement by utilizing the third direction. This allows terminals to be exposed when the box is opened from the front, improving accessibility without significantly increasing structural complexity
Solution Approach 2:
The patent employs asymmetric orientation of the battery cell within the box, with the second surface intersecting the third direction at a specific angle. This asymmetric arrangement ensures that the electrode terminals are positioned to be fully exposed when the box is opened, optimizing maintenance accessibility while maintaining structural simplicity
3Quantity of substance
If more battery cells are connected per unit area to improve energy density, then the energy density increases, but the maintenance and inspection convenience may be compromised
Solution Approach 1:
By reorienting battery cells vertically along the third direction with terminals extending front-back, the patent enables terminal accessibility without requiring excessive spacing between cells. This allows higher cell density per unit area while maintaining ease of terminal access for maintenance and inspection
Solution Approach 2:
The inverted terminal orientation allows terminals to be accessed from the front of the box rather than requiring top access. This enables tighter packing of battery cells in the vertical dimension while maintaining convenient terminal accessibility, thereby increasing energy density without compromising maintenance convenience
Data Source
AI summary
A battery includes a box and a battery assembly. The battery assembly is accommodated within the box and includes at least one battery cell. The battery assembly is arranged along a first direction, where the first direction is a lengthwise direction of the battery or a traveling direction of an electric device that utilizes the battery. The battery cell has a first surface and a second surface. The first surface is provided with an electrode terminal, the second surface is connected to the box, and the second surface intersects with a third direction. The third direction intersects with both the first direction and the horizontal plane.