Pressurizing Jig for Gas Analysis Monocell Electrode Stability
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Solution Overview
Problem
Conventional gas analysis devices lack the capability to pressurize monocells, leading to a lifted phenomenon between electrodes during gas analysis, making it difficult to accurately analyze gases generated during the initial charging of secondary batteries, especially for medium-large cells.
Innovation Solution
A pressurizing jig for monocells, comprising a first and second plate made of thermosetting resin with auxiliary pads, which includes a gas passage for internal gas movement and grooves for electrode leads, designed to prevent the lifted phenomenon by applying pressure, integrated into a gas analysis device with modules for real-time analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a monocell is used for gas analysis to simulate medium-large cells, then gas analysis capability is improved, but the lifted phenomenon between electrodes occurs due to excessive electrolyte injection
Solution Approach 1:
The pressurizing jig applies preliminary pressurization to the monocell before gas analysis to counteract the lifted phenomenon between electrodes. The first and second plates with auxiliary pads exert pressure on the monocell to prevent electrode separation caused by excessive electrolyte injection, thereby maintaining reliable electrical contact during analysis.
2Device complexity
If conventional gas analysis device configuration is used, then device simplicity is maintained, but pressurization capability is lost leading to analysis inaccuracy
Solution Approach 1:
The pressurizing jig is designed as a separate, detachable module with first and second plates that can be independently assembled and adjusted. This segmented design allows the pressurization function to be added to the gas analysis device without completely redesigning the system, maintaining relative simplicity while enabling accurate pressurization for reliable gas analysis.
Data Source
AI summary
A jig for pressing a gas analysis monocell according to the present invention comprises: a first plate and a second plate which face each other with a monocell therebetween; a first auxiliary pad positioned between the first plate and the monocell; and a second auxiliary pad positioned between the second plate and the monocell, wherein the first plate and the second plate are formed of a thermosetting resin. When analyzing a gas generated from the monocell during a primary charge, the jig for pressing the monocell according to the present invention presses the thin monocell to prevent a gap from forming between electrodes due to the primary charge, and thus has an effect of deriving more reliable analysis results.