Electrode Group Preheating via Heat Conduction Plate Contact
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Solution Overview
Problem
In the manufacturing of electrode groups for batteries, there is a need to stabilize temperature variations and shorten heating time to ensure consistent preheating before compression, as existing methods struggle to efficiently and uniformly heat electrode group structures.
Innovation Solution
A heating apparatus with a chamber, heat conduction plates, temperature and pressure adjustment units, and a controller is used to maintain consistent temperature and pressure within the heating room, allowing for efficient heat transfer to the electrode group structures through heat conduction plates and controlled gas circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional heating methods are used for electrode group structures, then heating can be performed, but temperature variations between multiple electrode group structures increase and heating time is extended
Solution Approach 1:
A heat conduction plate is introduced as an intermediary between the heating apparatus and the electrode group structures. The heat conduction plate has high thermal conductivity and makes direct contact with the electrode group structures, enabling efficient and uniform heat transfer to multiple structures simultaneously, thereby reducing temperature variations and heating time
Solution Approach 2:
A pressing apparatus applies pressure to press the electrode group structures against the heat conduction plate. This hydraulic/mechanical pressure ensures intimate contact between the structures and the plate, maximizing heat transfer efficiency and uniformity across all structures being heated
2Productivity
If heating is performed before compression of electrode group structures, then preheating is achieved, but temperature control stability is difficult to maintain
Solution Approach 1:
Temperature detection units continuously monitor the temperature of the electrode group structures during heating. The control unit receives this feedback information and adjusts the heating power accordingly to maintain the temperature within a predetermined range, ensuring stable temperature control while enabling continuous production
Solution Approach 2:
The system dynamically adjusts heating parameters (power, temperature setpoint) based on real-time temperature measurements. By changing these parameters in response to actual conditions, the system maintains optimal heating efficiency while ensuring temperature stability across multiple electrode group structures
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 approach stabilizes the heating process, reduces temperature variations between electrode group structures, and shortens heating time, enabling more efficient and consistent preheating before compression, thereby improving the manufacturing efficiency of electrode groups.
Implementation Method 1
the heat conduction plate enables heat to be conducted to the current collectors of the plurality of electrode group structures
Data Source
AI summary
In an embodiment, a heating apparatus for heating an electrode group structure includes a chamber, a heat conduction plate, a temperature adjustment unit, a pressure adjustment unit, and a controller. In a state where the heat conduction plate is in contact with the current collectors of a plurality of the electrode group structures in a heating room inside chamber, the heat conduction plate enables heat to be conducted to the current collectors of the electrode group structures. The controller controls operation of the temperature adjustment unit and the pressure adjustment unit in a state where the heat conduction plate is in contact with the current collectors of the electrode group structures.