Hydrogen Adsorbing Electrode Protection for Cell Electronics
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Solution Overview
Problem
Existing technologies fail to effectively prevent hydrogen contamination of electronic components in chemical and electrochemical cells, leading to degradation and performance issues due to hydrogen pressure buildup, especially in high-pressure environments.
Innovation Solution
An electrochemical cell active hydrogen capture and release system with a sorbent material that absorbs hydrogen in a controlled manner, utilizing an electrical circuit to manage hydrogen concentration near electronic components, including a first zone with a predetermined hydrogen concentration and a second zone with a higher concentration, separated by a physical diffusion barrier, and employing an adsorbing electrode with activatable sites to capture and release hydrogen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components are placed in chemical and electrochemical cells, then system functionality is improved, but hydrogen contamination causes degradation and performance issues
Solution Approach 1:
A hydrogen-removing agent is introduced as an intermediary substance between the hydrogen-generating electrochemical reactions and the electronic components. This agent actively scavenges hydrogen molecules from the environment, preventing hydrogen contamination of the electronics while allowing the electrochemical cell to function normally. The mediator creates a protective chemical environment without requiring physical isolation.
Solution Approach 2:
The harmful hydrogen molecules are extracted from the environment surrounding the electronic components through the hydrogen-removing agent. The agent selectively binds and removes hydrogen from the headspace and surface environments, concentrating the hydrogen removal function in a specific substance rather than relying on passive barriers.
2Reliability
If physical diffusion barriers are used to separate hydrogen-rich and hydrogen-poor zones, then hydrogen protection is improved, but device complexity increases
Solution Approach 1:
The hydrogen-removing agent operates autonomously to maintain hydrogen-free zones around electronic components. Instead of requiring complex active pumping systems or multi-layer barrier structures, the chemical agent self-regulates hydrogen concentration through its inherent hydrogen-scavenging properties, simplifying the overall system architecture.
Solution Approach 2:
The system changes the chemical parameter of the environment by introducing a substance that alters hydrogen reactivity and concentration. Rather than relying on physical barrier properties, the system uses chemical parameter modification to achieve hydrogen protection, reducing structural complexity.
3Reliability
If hydrogen adsorption capacity is increased near electronic components, then hydrogen concentration control is improved, but loss of substance increases due to adsorption material requirements
Solution Approach 1:
The hydrogen-removing agent is designed to be regenerable or replaceable. After saturating with hydrogen, the agent can be thermally treated or chemically regenerated to release captured hydrogen, allowing repeated use. This recovering approach reduces the net loss of functional material compared to single-use adsorbents.
Solution Approach 2:
The system employs periodic regeneration cycles for the hydrogen-removing agent. During normal operation, the agent actively removes hydrogen; periodically, it is regenerated to restore its hydrogen-scavenging capacity. This periodic action maximizes the utility of the adsorption material and reduces replacement frequency.
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
The system effectively maintains a hydrogen-poor environment around electronic components, minimizing degradation and ensuring reliable performance by actively capturing and releasing hydrogen, thus protecting electronic components from hydrogen-induced damage.
Implementation Method 1
an adsorbing electrode including a hydrogen adsorbing material... The adsorbing sites may include one or more doping sites... structured to capture and release hydrogen atoms
Implementation Method 2
an electric circuit connecting the adsorbing and counter electrodes to apply electrical bias configured to facilitate capture and release of hydrogen gas from the adsorbing electrode
Implementation Method 3
A hydrogen-permeable solid dielectric may form a physical separation between the counter and adsorbing electrodes
Implementation Method 4
A physical diffusion barrier may form a physical separation between the first and second zones
Data Source
AI summary
An electrochemical cell active hydrogen capture and release system including a first zone having a target predetermined concentration of hydrogen c1 and housing: an electrical component, an adsorbing electrode including a hydrogen adsorbing material, a counter electrode separated from the adsorbing electrode, and an electric circuit connecting the adsorbing and counter electrodes to apply electrical bias configured to facilitate capture and release of hydrogen gas from the adsorbing electrode; and a second zone having a target predetermined concentration of hydrogen c2, c2 being greater than c1.