Ferromagnetic Microcapsule Hydrogen Storage Induction Heating
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Solution Overview
Problem
Conventional solid state hydrogen storage systems require separate heating and cooling devices for efficient hydrogen occlusion and discharge, which complicates the process and reduces efficiency.
Innovation Solution
A solid state hydrogen storage system that includes microcapsules coated with a ferromagnetic material, such as Ni or Co, and a thermally conductive material, where a variable magnetic field is applied using a coil to induce heating during hydrogen discharge, enhancing energy transfer and efficiency without the need for additional heating structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate heating and cooling devices are used for hydrogen occlusion and discharge, then hydrogen storage and discharge processes can be controlled, but device complexity increases and efficiency decreases
Solution Approach 1:
The patent combines the heating function into the microcapsule structure itself by coating the hydrogen storage material with a ferromagnetic layer, eliminating the need for separate external heating devices. The ferromagnetic coating enables internal heating through magnetic hysteresis loss when exposed to alternating magnetic fields, merging the heating function with the storage material structure.
Solution Approach 2:
The ferromagnetic coating on the microcapsule surface enables the hydrogen storage material to heat itself during discharge through magnetic hysteresis loss when exposed to alternating magnetic fields. This self-heating mechanism eliminates the need for external heating devices, allowing the system to serve itself by using the magnetic field to generate heat directly where needed.
2Productivity
If conventional heating devices are used for hydrogen discharge, then hydrogen can be released from storage material, but energy input utilization is reduced and discharge efficiency is low
Solution Approach 1:
The patent replaces conventional thermal heating devices with a magnetic field-based heating system. Alternating magnetic fields induce hysteresis loss in the ferromagnetic coating, generating heat directly in the microcapsules. This substitution of mechanical/thermal heating with magnetic field interaction improves energy utilization and discharge efficiency.
Solution Approach 2:
The patent changes the heating mechanism from conventional thermal conduction to magnetic hysteresis heating by introducing ferromagnetic materials with specific magnetic properties. The alternating magnetic field frequency and strength can be adjusted to optimize heat generation and hydrogen discharge rates, improving energy input utilization and discharge efficiency.
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 significantly improves hydrogen discharge efficiency by utilizing induction heating and thermal conductivity, eliminating the need for separate heating devices and enhancing energy input utilization.
Implementation Method 1
a coil configured to apply a variable magnetic field to the microcapsules received in the storage container
Implementation Method 2
The ferromagnetic material, with which the surface of the solid state hydrogen storage material is coated, may include at least one of Ni or Co
Implementation Method 3
The microcapsule may be formed by coating the surface of the solid state hydrogen storage material with a thermally conductive material and coating the surface of the thermally conductive material with the ferromagnetic material
Data Source
AI summary
A solid state hydrogen storage system may include a storage container, a plurality of microcapsules received in the storage container, each of the microcapsules being formed by coating the surface of a solid state hydrogen storage material with a ferromagnetic material, and a coil configured to apply a variable magnetic field to the microcapsules received in the storage container.