Flow battery stack and method of assembly integration thereof

By alternately stacking pre-assembled integrated components of seal-electrode-membrane frame and pre-assembled integrated components of seal-electrode-plate frame, the complexity and consistency issues of flow battery stack assembly are solved, achieving efficient automated production and improved performance consistency.

CN122158639APending Publication Date: 2026-06-05DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
Filing Date
2024-12-03
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Flow batteries have numerous components, complex assembly processes, low efficiency, and poor consistency, making it difficult to maintain reliability and performance consistency in complex electrochemical systems.

Method used

The flow battery stack is formed by using alternating stacked pre-installed integrated components of seal-electrode-membrane frame and seal-electrode-plate frame, and combining the components into one unit through laser welding or hot melt bonding. Combined with the positioning and bonding of insulating screws and double-sided tape, a high-reliability flow battery stack with strong performance consistency is formed.

Benefits of technology

It has achieved fully automated assembly of fuel cell stacks, reduced the number of parts, improved assembly efficiency and positioning accuracy, enhanced product consistency, simplified structure and reduced costs.

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Abstract

The application discloses a kind of liquid flow battery stacks and its assembly integrated method, including lower end plate integrated piece, core end plate integrated piece, upper end plate integrated piece, sealing-electrode-membrane frame welding preset integrated piece and sealing-electrode-plate frame welding preset integrated piece;It is assembled by five integrated pieces, and the key integrated piece of repeated stacking is only two kinds;The stack structure presented in the application can greatly reduce the assembly quantity of stack components while realizing the full automation of stack assembly, improve the assembly efficiency of stack;The reduction of component also improves the positioning accuracy and consistency in the process of stack assembly, which is beneficial to improve the performance consistency of product;It requires less workstations, machine tables and mechanical arms for stack assembly automated production platform, and the structure is simple, the floor area is small, and the cost is low.
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