Method for manufacturing a tank for storing a fluid under pressure and a tank obtained thereby
JP2025519532A5Pending Publication Date: 2026-06-16ARKEMA FRANCE SA +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- ARKEMA FRANCE SA
- Filing Date
- 2023-06-07
- Publication Date
- 2026-06-16
AI Technical Summary
Technical Problem
Current hydrogen storage tanks face challenges such as high weight, low temperature resistance, and complex manufacturing processes, which hinder efficient and cost-effective storage of hydrogen for automotive applications.
Method used
A method for manufacturing a tank using an unconsolidated elongated fabric preform made of thermoplastic composite tapes, which are consolidated under pressure to create a lightweight, high-strength, and recyclable tank with improved gas leakage prevention.
Benefits of technology
The method enables the production of lightweight, high-strength hydrogen storage tanks with enhanced temperature resistance and reduced manufacturing time and cost, making them suitable for automotive applications.
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Smart Images
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Abstract
The present invention relates to a method for manufacturing a tank, in particular a tank for storing a fluid under pressure, comprising an elongated densified textile element, said method comprising: step (i) of manufacturing an undensified elongated textile preform comprising a plurality of layers of thermoplastic composite tapes each comprising at least one tape wound at a predetermined angle, by means of a specific device (1); step (ii) of densifying the preform obtained in the previous step by heating and cooling the thermoplastic composite tapes, whereby the preform is densified and a densified elongated textile element is obtained; the preform being manufactured by a method comprising the steps of implementing feeding means (6) in each of the modules (4), said feeding means (6) comprising a selected tape (10), said selected tape (10) comprising at least a thermoplastic composite tape; setting the forward speed V1 and the rotational speed V2 of each of the modules (4) and activating each module (4); cutting the elongated element (11) and / or using up the supply of the tape (10); and recovering the obtained undensified elongated textile preform (11); step i) not including the step of braiding the tapes.
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