Assembled Battery Intersecting Current Collector Bundling
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Solution Overview
Problem
Conventional assembled batteries have a large wasted space around the connecting portion of laminated batteries, resulting in low energy density.
Innovation Solution
Bundling and connecting current collectors from different laminated batteries in a manner where their lamination directions intersect, allowing for a more compact connecting structure that reduces wasted space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If current collectors from different laminated batteries are bundled and connected in series with parallel lamination directions, then the connecting structure is simple, but large wasted space occurs around the connecting portion resulting in low energy density
Solution Approach 1:
The patent applies dimensionality change by switching from parallel lamination (same direction) to intersecting lamination (different direction) of current collectors in the connecting portion. This directional change in the spatial arrangement allows current collectors to be bundled more tightly, reducing wasted space and improving energy density while maintaining manufacturing simplicity
2Quantity of substance
If current collectors are laminated with intersecting directions in the connecting portion, then wasted space is reduced and energy density increases, but the manufacturing complexity increases
Solution Approach 1:
The patent resolves the complexity issue by systematically arranging current collectors in intersecting lamination directions, where first current collectors extend in a first direction and second current collectors extend in a second direction. This structured dimensional arrangement achieves compact bundling and high energy density while maintaining manageable manufacturing complexity through clear directional organization
Data Source
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AI summary
Provided is an assembled battery with which a wasted space can be reduced and having a large energy density. The assembled battery comprising a first laminated battery provided to a plurality of current collectors, a second laminated battery provided to a plurality of current collectors, and a connecting portion that bundles and connects the plurality of current collectors provided to the first laminated battery and the plurality of current collectors provided to the second laminated battery, wherein the plurality of current collectors provide to the first laminated battery and the plurality of current collectors provided to the second laminated battery are laminated and bundled in the connecting portion, and a lamination direction of the plurality of current collectors in the connecting portion and a lamination direction of the plurality of current collectors in each laminated battery are intersecting with each other.