Battery Cell Positioning via I-Shaped Intermediate Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional accumulators for electric vehicles are heavy due to massive holding devices required to keep cells in position during violent acceleration, which reduces driving performance.
Innovation Solution
An accumulator design where I-shaped or H-shaped intermediate elements absorb bending/shear stress between cells, allowing them to remain in position and transmit power, thus reducing the need for additional support elements and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If massive holding devices are used to keep cells in position during violent acceleration, then the cells remain securely positioned, but the weight of the accumulator and vehicle increases considerably
Solution Approach 1:
The patent combines the holding function with the cell structure itself by integrating attachment/support points directly onto the cell casings. The cell casings are designed to serve dual purposes: containing the electrochemical components and providing mechanical support for positioning. This eliminates the need for separate massive holding devices, resolving the contradiction between positioning stability and weight reduction.
Solution Approach 2:
The cell casings are designed to perform multiple functions simultaneously: they contain the electrochemical components, provide structural integrity, and serve as attachment points for positioning. The attachment/support points integrated into the casings allow the same structural elements to fulfill both containment and positioning roles, reducing overall system weight while maintaining reliability.
2Reliability
If additional support elements are added to maintain cell position, then cell positioning is improved, but the device complexity and weight increase
Solution Approach 1:
The patent merges the support function into the cell casings themselves. The attachment/support points are integrated directly onto the casings, eliminating the need for separate support structures. This integration reduces device complexity by removing redundant components while maintaining the ability to securely position cells during acceleration.
3Stability of the object's composition
If cells are connected with massive holding devices, then the cells remain in position relative to one another, but the overall weight of the accumulator increases
Solution Approach 1:
The patent combines the function of maintaining cell arrangement stability with the cell casings themselves. The attachment/support points integrated into the casings provide the necessary mechanical connection to maintain relative cell positions without requiring separate massive holding devices, thus reducing overall weight while preserving structural stability.
Data Source
Figure 1~3
Figure 4~6
Figure 7~8
AI summary
The invention relates to an accumulator (1a..1l) comprising several voltage-generating cells (2) arranged, in particular, adjacent to each other. Said accumulator (1a..1l) comprises several securing points/supporting points arranged at a distance from each other, on which the accumulator (1a..1l) is secured or placed. At least one first part of said cells (2) having a first mass and optionally additional components (4-10, 12-24, 26-27) of said accumulator ( 1a..1l) having an additional mass rests between the securing points/supporting points. The first part of the cells (2) absorbs at least one substantial part of the bending stress/shear stress generated in accumulator (1a..1l) between the securing points/supporting points. Also, an I-shaped or H-shaped intermediate element (14) is arranged between at least two voltage-generating cells (2)