Battery Pole Assembly With Insertion Slot for Higher Energy Density
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Solution Overview
Problem
Current battery technologies face challenges in improving energy density due to limitations in space utilization, particularly in the height direction of the battery cell pole, caused by the need for aluminum connecting pieces and insulation spaces.
Innovation Solution
The solution involves a battery design where two battery cells form a pole assembly structure with an insertion slot, eliminating the need for an aluminum connecting piece. The information collector's sampling piece extends into this slot for electrical connection, optimizing space use and enhancing energy density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If aluminum connecting pieces are used to electrically connect poles of adjacent battery cells, then electrical connection reliability is improved, but space utilization in the height direction deteriorates
Solution Approach 1:
The patent extracts and eliminates the aluminum connecting piece from the battery structure by implementing direct pole-to-pole contact between adjacent battery cells. The insertion slot receives the pole directly without requiring separate connecting components, thereby removing the space-consuming element while maintaining electrical connection functionality.
Solution Approach 2:
The patent merges the electrical connection function and the structural support function into a single integrated structure. The pole assembly structure with insertion slot combines the pole of one battery cell with the mounting structure for the next cell, eliminating the need for separate aluminum connecting pieces and achieving both electrical connection and structural integrity in one component.
2Reliability
If aluminum connecting pieces and insulation spaces are included in battery cell arrangement, then electrical connection and insulation are ensured, but energy density deteriorates
Solution Approach 1:
The patent extracts and removes the aluminum connecting piece and associated insulation spaces from the battery structure. By implementing direct pole contact through the insertion slot, the design eliminates unnecessary material and space requirements, thereby increasing the proportion of active materials and improving energy density.
Solution Approach 2:
Instead of using separate connecting pieces and insulation layers, the patent inverts the approach by making the pole itself the connecting element. The pole is directly inserted into the next battery cell's insertion slot, reversing the conventional method of using intermediate connecting components and thereby eliminating the need for additional insulation spaces.
3Loss of information
If sampling piece is electrically connected to pole assembly structure, then battery parameter collection is enabled, but space for connection is occupied
Solution Approach 1:
The patent applies the nesting principle by placing the sampling piece inside the insertion slot of the pole assembly structure. The sampling piece is nested within the existing structural space of the pole assembly, utilizing the hollow or unused portions of the insertion slot rather than requiring additional external space for the connection.
Data Source
AI summary
A battery includes a battery pair and an information collector configured to collect parameters of the battery. The battery pair includes two battery cells. A surface of each of the two battery cells is provided with a pole. The poles of the two battery cells abut against each other face to face to form a pole assembly structure. The pole assembly structure includes an insertion slot. The information collector includes a main board and a sampling piece electrically connected to the main board. One end of the sampling piece extends into the insertion slot and is electrically connected to the pole assembly structure.