3D Battery Module Layout for Higher Volumetric Energy Density
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Solution Overview
Problem
Existing battery technologies face challenges in optimizing internal layouts to maximize space utilization and volumetric energy density, leading to inefficient assembly and structural instability.
Innovation Solution
A battery design where battery cells are stacked in one direction to form modules, which are then stacked perpendicularly in another direction, with electrode terminals facing differently, and reinforced by plates and frames, allowing for flexible and rational internal layout, improved structural stability, and enhanced heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If battery cells are stacked in a single direction to form modules, then the internal layout becomes simpler and assembly is easier, but the space utilization and volumetric energy density are reduced
Solution Approach 1:
The patent applies three-dimensional stacking by arranging battery cells in multiple directions (first direction within modules, second direction for module arrangement) rather than single-direction stacking. This dimensional expansion enables full utilization of available space while maintaining systematic assembly procedures, thereby resolving the contradiction between assembly ease and space utilization.
Solution Approach 2:
The patent implements a nested structure where battery cells are stacked to form modules, and multiple modules are then stacked to form the complete battery pack. This hierarchical nesting approach maintains manufacturing simplicity at each level while achieving high space utilization through compact multi-level arrangement.
2Stability of the object's composition
If electrode terminals are arranged in the same direction as cell stacking, then the structure is more uniform, but gaps increase and volumetric energy density decreases
Solution Approach 1:
The patent employs asymmetric arrangement where electrode terminals of adjacent battery cells are positioned in opposite directions. This asymmetric configuration eliminates the need for large gaps between cells, increases volumetric energy density, while still maintaining structural regularity through the systematic opposite-direction pattern.
3Ease of manufacture
If battery modules are arranged with uniform orientation, then the layout is more regular and easier to manufacture, but structural stability and heat management efficiency are reduced
Solution Approach 1:
The patent arranges battery modules in alternating orientations (first direction and second direction) rather than uniform orientation. This asymmetric layout enhances structural stability by distributing mechanical stresses more evenly, improves heat management through better airflow channels, while maintaining manufacturing ease through the systematic alternating pattern.
Data Source
AI summary
Embodiments of this application provide a battery, a manufacturing method and a manufacturing system thereof, and an electric apparatus. The battery provided by the embodiments of this application includes a plurality of battery modules, where each of the battery modules includes a plurality of battery cells stacked in a first direction, the battery cell is provided with a first end face and a second end face that face away from each other in a second direction, with an electrode terminal disposed on the first end face, and the plurality of battery modules are stacked in a third direction; and the first direction, the second direction, and the third direction are perpendicular to each other.