01 Polybenzimidazole (PBI) Membrane

PBI Flow Battery Membrane:Compared to the commonly used fluorinated proton exchange membranes, PBI (Polybenzimidazole) flow battery membranes have the advantages of easily prepared resin raw materials and low cost. The PBI flow battery membrane products from Heshu New Materials have successfully resolved the previous contradiction between the antioxidant performance and proton conductivity of non-fluorinated proton exchange membranes, achieving the goal of simultaneously improving chemical stability and proton conductivity. The battery test performance has reached the same level as fluorinated proton exchange membranes. This product can be used in various flow battery technology routes, including all-vanadium, iron-chromium, and sulfur-iron systems.

Features:

- Good ion selectivity, with both high proton conductivity and vanadium-blocking performance.

- Thin, strong, low swelling rate, good dimensional stability, and less likely to be punctured by electrodes.

- High-temperature resistance, oxidation resistance, and good chemical stability.

Specifications:

PBI Fuel Cell Membrane:The PBI fuel cell membrane from Heshu New Materials is a non-reinforced polybenzimidazole membrane prepared by the casting method. The product has excellent high-temperature resistance and can maintain long-term stability at 300°C, making it suitable for high-temperature proton exchange membrane fuel cell applications.

Features:

- Excellent proton conductivity.

- High strength, low swelling rate, and good dimensional stability.

- High-temperature resistance, oxidation resistance, and good chemical stability.

Specifications:

02 Sulfonated Polyether Ether Ketone (SPEEK) Membrane

Sulfonated Polyether Ether Ketone (SPEEK) membrane is a high-performance non-fluorinated ion exchange membrane based on the Polyether Ether Ketone (PEEK) backbone, modified through sulfonation, and specifically designed for flow batteries. The unique molecular structure of sulfonated polyether ether ketone, with its arrangement of ether bonds, ketone bonds, and benzene rings, endows it with special adaptability in flow battery environments. Its swelling resistance is superior to other non-fluorinated ion exchange membranes, avoiding performance degradation caused by swelling.

Features:

- Low swelling, high mechanical strength, and high chemical stability.

- Ion selectivity can be adjusted by the degree of sulfonation.

- The degree of sulfonation, thickness (15-200μm), and membrane area can be customized according to customer requirements to match the design of different flow battery systems.

03 Sulfonated Polyphenylsulfone (SPPSU) Membrane

Sulfonated Polyphenylsulfone (SPPSU) flow battery membrane is a high-performance non-fluorinated ion exchange membrane based on the Polyphenylsulfone (PPSU) backbone, modified through sulfonation, and specifically designed for flow batteries, suitable for large-scale energy storage systems. The membrane, modified by sulfonation technology, provides the polyphenylsulfone material with excellent ion selectivity and conductivity. It can efficiently isolate the positive and negative electrode electrolytes and achieve directional proton/ion transport, ensuring the energy conversion efficiency and cycling stability of the battery. Its unique chemical structure exhibits outstanding durability under harsh conditions such as strong acids, strong oxidants, and high potential differences, making it one of the core components for the next generation of flow batteries to achieve long-life and low-cost energy storage.

Features:

- Low cost, high mechanical strength, and high chemical stability.

- Ion selectivity and swelling can be adjusted by the degree of sulfonation.

- The degree of sulfonation, thickness (15-200μm), and membrane area can be customized according to customer requirements to match the design of different flow battery systems.

04 Sulfonated Polysulfone (SPSU) Membrane

Sulfonated Polysulfone (SPSU) flow battery membrane is a high-performance non-fluorinated ion exchange membrane based on the Polysulfone (PSU) backbone, modified through sulfonation, and specifically designed for flow batteries, suitable for large-scale energy storage systems. The membrane, modified by sulfonation technology, provides the polysulfone material with excellent ion selectivity and conductivity. It can efficiently isolate the positive and negative electrode electrolytes and achieve directional proton/ion transport, ensuring the energy conversion efficiency and cycling stability of the battery. Its unique chemical structure exhibits outstanding durability under harsh conditions such as strong acids, strong oxidants, and high potential differences, making it one of the core components for the next generation of flow batteries to achieve long-life and low-cost energy storage.

05 Perfluorosulfonic Acid Proton Exchange Membrane

The perfluorosulfonic acid ion exchange membrane produced by Heshu New Materials using the casting method is a colorless and transparent membrane, with good ion conductivity and chemical stability.

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