Application of PSI TFN Specialty Acid-Resistant Membranes in New Energy Battery Cathode Materials

Användning av syrabeständiga membran från PSI TFN Specialty i katodmaterial för batterier för ny energi

PSI MEMBRANE^® Pro-Acid specialty acid-resistant membrane elements are used for material concentration in new energy cathode material plants. The concentrated brine is discharged to an evaporator, and the product water is reused as pure water for production line processes.

Project Overview

Location: Fuquan City, Guizhou Province
Water Source: New Energy Battery Chemical Workshop
Capacity: 6000m³/d in the First Phase
User: New Energy Battery Cathode Materials Top Enterprise
Purpose: Material Concentration, Water Reuse
Commissioning Date: August 2023

Reverse Osmosis System Design Information

Influent pH: 2
Quantity of Membrane System: 26 Units in the Acid-resistant Membrane Workshop
Adoption of Membrane Elements: PSI MEMBRANE^® Pro-Acid
PSI Membranes were installed and operated simultaneously with imported membranes, demonstrating significant advantages in salt rejection, flux stability, and cleaning resistance compared to other imported acid-resistant membrane elements.

Position	Quantity of Membrane System	Average Design Flux	Recovery Rate	Quantity of Membrane per Unit
Dilute Water 1st	6	18LMH	65%	144
Dilute Water 2nd	4	15LMH	50%	144
Dilute Water 3rd	3	11LMH	45%	144
Concentrate Water 1st	7	15LMH	55%	144
Concentrate Water 2nd	6	8.5LMH	40%	144