Compact Secondary Battery Module with Integrated Fixation
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Solution Overview
Problem
Existing secondary battery modules struggle to be compact while maintaining high energy density when assembled into packs, as separate mounting structures are required, leading to reduced overall energy density.
Innovation Solution
A compact secondary battery module design featuring a cartridge assembly with stacked cartridges and fixation members, such as bosses or hooks, that allow modules to be mechanically and electrically connected in series or parallel, eliminating the need for separate mounting structures and enabling efficient packing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate mounting structures are used to assemble modules into packs, then mechanical/electrical connection is achieved, but the overall energy density of the pack is reduced due to additional space requirements
Solution Approach 1:
The mounting structure is merged with the module housing itself. The housing includes integrated mounting protrusions and recesses that directly provide mechanical connection between modules, eliminating the need for separate mounting components. This integration maintains structural reliability while maximizing space utilization for energy storage.
Solution Approach 2:
The module housing serves multiple functions: it provides structural containment for battery cells, electrical insulation, and mechanical connection interfaces. The housing includes both sealing functions and mounting functions, allowing a single component to fulfill multiple roles that would traditionally require separate parts, thereby improving energy density.
2Volume of moving object
If module size is reduced to improve compactness, then space efficiency increases, but the ability to securely assemble into packs decreases
Solution Approach 1:
Mounting recesses are formed within the module housing structure itself, creating nested features that provide secure connection points. The housing contains internal mounting structures that engage with corresponding features on adjacent modules, ensuring secure assembly even when overall module dimensions are minimized for compactness.
Data Source
AI summary
The present invention relates to a secondary battery module comprising a cartridge assembly in which at least two or more cartridges are stacked and combined, wherein the module comprises one or more fixed members provided on the outer surface thereof in order to configure a battery pack in which one or more modules are mechanically/electrically connected in series or in parallel with each other.