Battery Module Bracket Design for High Energy Density
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Solution Overview
Problem
Current battery units lack high energy density and resistance to external stress, which is crucial for the development of safe and convenient battery solutions for electric motor vehicles and smart grids.
Innovation Solution
A battery unit design featuring two battery cells mounted on both sides of a bracket with an outer peripheral wall and a support body, where the cells are secured by double-sided tapes and bus bars, providing a protective structure and improved rigidity while minimizing stress and thickness, thus enhancing energy density and resistance to external stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If battery cells are mounted on both sides of the bracket, then energy density is improved, but structural complexity increases
Solution Approach 1:
The battery unit is divided into two separate mounting locations on the bracket - a front surface side and a back surface side. This segmentation allows two battery cells to be mounted independently on opposite sides of the bracket, effectively doubling the energy capacity without requiring a single complex housing structure.
Solution Approach 2:
The design transitions from a single-sided mounting approach to a three-dimensional configuration where battery cells are mounted on both front and back surfaces of the bracket. This dimensional expansion utilizes the available space more efficiently, increasing energy density by exploiting the z-axis (depth) dimension of the bracket structure.
2Object-affected harmful factors
If the outer peripheral wall portion surrounds the battery cell, then resistance to external stress is improved, but volume increases
Solution Approach 1:
The outer peripheral wall portion of the bracket provides localized protection specifically at the mounting locations of the battery cells, rather than enclosing the entire battery unit. This localized shielding approach offers stress resistance where most needed (at cell contact points) while minimizing overall volume increase.
Solution Approach 2:
The protective structure utilizes a thin outer peripheral wall portion that provides sufficient stress resistance through strategic positioning and structural design rather than through thickness. The wall acts as a flexible protective barrier that absorbs external stress without requiring substantial volume.
Data Source
AI summary
A battery module is provided. The battery module includes a battery module comprising a plurality of battery units comprising a pair of terminals respectively; and a connector comprising insertion portions, wherein the pair of terminals are inserted into the insertion portions and the plurality of terminals are electrically connected to each other.