Battery Container Recessed Terminal Layout for Space Efficiency
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Solution Overview
Problem
Conventional energy storage devices have inefficient space utilization due to protruding terminals and external measurement wires, leading to wasted space outside the device.
Innovation Solution
The energy storage device features an elongated electrode assembly and container with recessed portions on the side surfaces, allowing terminals to be mounted internally and external wires to be accommodated within these recesses, reducing external protrusion and enhancing space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminals and measurement wires are mounted externally on the energy storage device, then electrical connection and measurement functions are achieved, but space utilization efficiency outside the device is reduced
Solution Approach 1:
The patent applies nesting by placing the measurement wire inside the recessed portion of the container, which is itself nested within the overall device structure. The terminal is mounted on the container's outer surface, while the measurement wire is accommodated within the recessed area, creating a nested arrangement that reduces external space requirements while maintaining both terminal mounting and measurement functions
Solution Approach 2:
The patent introduces a recessed portion on the container's outer surface, utilizing the depth dimension to accommodate the measurement wire. This dimensional approach allows the measurement wire to be positioned within the recessed area rather than extending externally, thereby reducing the device's external footprint while preserving measurement functionality
2Measurement precision
If measurement wires are disposed outside the container, then voltage or temperature measurement is enabled, but the space outside the energy storage device is wastefully used
Solution Approach 1:
The measurement wire is nested within the recessed portion of the container, allowing it to be accommodated within the device's overall volume rather than extending externally. This nesting approach enables measurement functionality while minimizing the volume occupied outside the device
Solution Approach 2:
The container's outer surface is locally modified with a recessed portion specifically designed to accommodate the measurement wire. This localized structural change allows the measurement wire to be positioned within the recessed area, reducing external space requirements while maintaining measurement capability
Data Source
AI summary
An energy storage device includes: an electrode assembly that is formed by stacking a plurality of plates and is elongated in a first direction; a container that accommodates the electrode assembly and is elongated in the first direction; and a first terminal that is electrically connected to the electrode assembly. The container includes a side surface portion at an end portion of the container in the first direction. The side surface portion includes: a first terminal mounting portion on which the first terminal is mounted; and a first recessed portion that is formed at a position different from a position where the first terminal mounting portion is disposed.