Electrochemical Cell Sealing Structure for High-Pressure Retrofitting
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Solution Overview
Problem
Existing sealing structures in electrochemical cells face issues such as distortion due to grooves for sealing members, difficulty in precise processing, and high processing costs, making retrofitting and improving sealability challenging.
Innovation Solution
The electrochemical cell features a sealing structure with plural frame bodies and sealing members disposed at intervals, allowing for easy manufacturing and retrofitting, with frame bodies formed separately from the plates to prevent electrical short-circuiting and maintain sealability under high-pressure operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a groove is provided on the electrode plate for disposing a sealing member, then the sealing structure can be formed, but distortion is likely to occur and precise processing is difficult
Solution Approach 1:
The sealing structure is divided into separate components: the electrode plate and the sealing member (frame body). The sealing member is formed separately from the electrode plate without requiring grooves to be cut into the plate itself. This segmentation eliminates the distortion and precision issues associated with groove formation while maintaining effective sealing through the separate sealing component.
2Reliability
If a groove is provided on the electrode plate for disposing a sealing member, then the sealing structure can be formed, but it is difficult to reprocess the groove and perform retrofitting
Solution Approach 1:
By separating the sealing function into an independent sealing member (frame body) rather than integrating it into the electrode plate via grooves, the sealing component can be easily removed, replaced, or retrofitted without modifying the electrode plate itself. This segmentation enables straightforward reprocessing and improvement of sealing performance.
3Ease of repair
If frame bodies are formed separately from the plates, then retrofitting is facilitated, but electrical short-circuiting may occur between plates
Solution Approach 1:
An insulating layer is introduced as an intermediary between the conductive frame bodies and the electrode plates. This insulating layer prevents direct electrical contact and potential short-circuiting while allowing the frame bodies to maintain their sealing function. The intermediary layer resolves the conflict between using separate frame bodies for retrofitting and preventing electrical hazards.
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 enables efficient operation under high-pressure conditions, facilitates easy retrofitting, and maintains stable electrochemical reactions by preventing frame movement and ensuring effective sealing.
Implementation Method 1
plural sealing members disposed between the plural frame bodies and disposed in a compressed state between the first plate and the second plate
Data Source
Figure 1
Figure 2
Figure 3(a)~3(f)
AI summary
Provided are an electrochemical cell and an electrochemical device that are easily manufactured and capable of retrofitting. The electrochemical cell includes: a first plate and a second plate between which an anode chamber and a cathode chamber are respectively formed on respective opposing inner surface sides thereof; and a sealing portion provided between the first plate and the second plate, in which the sealing portion includes plural frame bodies disposed at intervals from an inner side to an outer side, and plural sealing members disposed between the plural frame bodies and disposed in a compressed state between the first plate and the second plate. The electrochemical device includes the electrochemical cell.