Rotatable Secondary Battery Module for Flexible Cell Interconnection
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Solution Overview
Problem
Existing secondary battery modules have a fixed structure and limited design freedom, making it difficult to arrange cells in various forms and connect them efficiently in series or parallel within a battery pack.
Innovation Solution
A secondary battery module design featuring rotatable cells with a rotation member and adhesive materials, allowing cells to be easily positioned and connected in series or parallel through magnetic and elastic mechanisms, enabling flexible arrangement and efficient electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed structure according to a frame is used for manufacturing a secondary battery pack, then manufacturing precision and structural stability are improved, but adaptability and design freedom are worsened
Solution Approach 1:
The battery module employs a rotatable cell configuration where cells can be rotated by 180 degrees around a rotation axis. This dynamic capability allows the same module to adapt to different connection requirements (series or parallel) without changing the overall module structure, thereby resolving the contradiction between structural stability and design freedom.
Solution Approach 2:
The rotation member enables the battery module to serve multiple functions: it can configure cells in series connection mode or parallel connection mode depending on the rotation state. This multi-functionality allows a single module design to meet different electrical connection requirements, improving adaptability while maintaining manufacturing precision.
2Manufacturing precision
If terminals are fixed by arrangement, then manufacturing precision is improved, but adaptability and ease of operation are worsened
Solution Approach 1:
The terminals are arranged in a fixed symmetric pattern on the cell surfaces, but the entire cell can be rotated by 180 degrees. This dynamic rotation allows the terminals to achieve different connection configurations (series or parallel) while maintaining precise manufacturing of the terminal positions themselves, thus resolving the contradiction between fixed arrangement and connection flexibility.
3Stability of the object's composition
If cells are fixed in position, then structural stability is improved, but ease of operation and adaptability are worsened
Solution Approach 1:
The rotation member provides a controlled dynamic mechanism that allows cells to be rotated by 180 degrees around a rotation axis while maintaining stable positioning in either orientation. The cell can be stably fixed in two different positions (0 degrees or 180 degrees), enabling easy reconfiguration for different connection modes without compromising structural stability during operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the flexibility and efficiency of secondary battery pack design by allowing cells to be arranged in various forms and connected easily in series or parallel, improving the overall performance and usability of the battery module.
Implementation Method 1
The rotation shaft may have an elastic force that attracts the first rotation plate and the second rotation plate, which are spaced apart from each other.
Implementation Method 2
The first rotation plate and the second rotation plate may include magnetic materials to be attracted to each other.
Implementation Method 3
The secondary battery module may further include an adhesive material that attaches the rotation member to the first cell and the second cell.
Data Source
AI summary
The present disclosure relates to a secondary battery module that is capable of being disposed inside a secondary battery pack in various forms and being easily set in series or parallel between cells inside the secondary battery pack, thereby improving efficiency in designing the secondary battery pack.A secondary battery module according to the present disclosure includes: a plurality of cells comprising a first cell and a second cell which are facing each other, and a rotation member disposed between a surface of the first cell and a surface of the second cell facing the surface of the first cell, wherein the first cell is rotatable with respect to the second cell.