Battery Cell Switching Member for Safety Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery cells are sensitive to environmental conditions and charging/discharging protocols, leading to potential fires, gas generation, and explosions if not treated correctly, and are vulnerable to impurities during manufacturing.
Innovation Solution
A battery cell design featuring a reversibly switchable first switching member that connects and disconnects the first electrode from the terminal, along with a control unit to manage switching and potentially hazardous states, including a second switching member for bypassing the terminal and electrode, and sensors for monitoring conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery cell uses a reversible switching member to connect and disconnect electrodes from terminals, then safety against fires and explosions is improved, but device complexity increases
Solution Approach 1:
A switching member is introduced as an intermediary component between the electrode and terminal. This switching member can be reversibly switched between a first state (connecting electrode to terminal) and a second state (disconnecting electrode from terminal), providing safety control without permanently altering the battery structure.
Solution Approach 2:
The switching member transitions from a static connection to a dynamic, controllable connection. By being reversibly switchable between connected and disconnected states, the system adapts to different operational conditions, enabling safety responses to hazardous states while maintaining normal operation when safe.
2Reliability
If switching members are added to control charging and discharging, then operational safety is improved, but manufacturing complexity increases
Solution Approach 1:
The switching member serves as a controllable intermediary that can be integrated into existing battery manufacturing processes. It provides the necessary safety function while allowing for standardized production through reversible switching mechanisms.
Data Source
AI summary
A battery cell having a first switching member switchable between a first position and a second position, wherein in the first position of the first switching member, a first electrode of the battery stack is being connected to a first terminal of the battery cell. In the second position of the first switching member the first electrode is being separated from the first terminal. The battery cell may further comprise a control unit in order to control a switching of the first switching member. Optionally there may be a second switching member providing a bypass between the second electrode and the first terminal, once the first terminal is being separated from the first electrode in response to a critical state of the battery cell.