Device for measuring expansion rate of hydrogen storage alloy tablet

By designing a cylindrical tank and a high borosilicate glass observation window, combined with high-definition video recording equipment, the problem of multi-dimensional synchronous measurement and real-time monitoring of the expansion rate of hydrogen storage alloys was solved, improving measurement accuracy and data reliability.

CN224399326UActive Publication Date: 2026-06-23NORTH CHINA ELECTRIC POWER UNIV
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Patent Information

Application Number
CN202521508506.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-06-23
Estimated Expiration
2035-07-18

AI Technical Summary

Technical Problem

Existing technologies for measuring the expansion rate of hydrogen storage alloys suffer from problems such as errors caused by unidirectional measurement, interference from constraint forces introduced by sample fixation, and the inability to monitor the expansion process in real time.

Method used

The cylindrical tank design, combined with a high borosilicate glass observation window and high-definition video recording equipment, enables multi-dimensional synchronous measurement. It uses adhesive for clamp-free fixation and dynamically monitors the expansion process of the hydrogen storage alloy blister.

Benefits of technology

Real-time observation of hydrogen storage alloy pellets under high pressure was achieved, improving measurement accuracy and data timeliness, and providing reliable material performance analysis data.

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Abstract

The utility model relates to the technical field of hydrogen storage alloy tablet expansion rate measurement, in particular to a device for measuring the expansion rate of a hydrogen storage alloy tablet, which mainly comprises a cylindrical tank body, high borosilicate glass is hermetically arranged at the top of the tank body, high-definition video equipment is arranged above the high borosilicate glass, and a gas supply pipeline is connected to the side wall of the tank body. And a transverse oxygen storage alloy pressing sheet and a longitudinal hydrogen storage alloy pressing sheet are arranged at the bottom of the inner cavity of the tank body. According to the utility model, a double-pressing-sheet transverse and longitudinal layout mode is adopted, so that the calculation precision of volume expansion of the hydrogen storage alloy is improved, researchers can obtain reliable volume expansion rate data, and accurate quantitative indexes are provided for material performance analysis; by adopting an adhesive fixing method, the boundary constraining force effect of the hydrogen storage alloy is reduced as much as possible, so that the material can freely expand in the experiment process, and the natural state of the material in a hydrogen pressure environment is truly reflected; and capturing the morphological change of the material in the whole process by adopting dynamic image recording equipment, and recording the expansion change details of the hydrogen storage alloy.
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