Cell stack for an electrochemical energy converter

The cell stack design with a fluid-tight shell made of electrically insulating films addresses the issue of hydrogen leakage in electrochemical energy converters by minimizing sealing compound deformation and ensuring a hydrogen-tight seal, thereby enhancing safety and efficiency.

DE102023210659A1Pending Publication Date: 2025-04-30ROBERT BOSCH GMBH
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Patent Information

Application Number
DE102023210659
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-27
Publication Date
2025-04-30

AI Technical Summary

Technical Problem

Existing electrochemical energy converters, such as fuel cell systems and electrolyzers, face challenges with hydrogen leakage due to deformations in sealing compounds, which can lead to safety and efficiency issues.

Method used

A cell stack design featuring a fluid-tight shell made of electrically insulating films that directly contacts each cell, minimizing deformation of the sealing compound and preventing hydrogen leakage. The shell envelops the cell stack, providing mechanical support and ensuring a hydrogen-tight seal.

Benefits of technology

The solution effectively minimizes hydrogen leakage and enhances the mechanical stability of the cell stack, ensuring a safe and efficient operation of electrochemical energy converters.

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Abstract

The presented invention relates to a cell stack (100) for an electrochemical energy converter (300), wherein the cell stack (100) comprises a plurality of cells (101) and a shell (103), wherein the shell (103) comprises a number of electrically insulating films, wherein the shell (103) directly contacts respective cells (101) of the plurality of cells (101), and wherein the shell (103) fluid-tightly shields the cell stack (101) from an environment.
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Citation Information

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