Application cases of nanocellulose in electrolyte separator materials

The application of nanocellulose in electrolyte membrane materials has been verified in several research and development projects. Here are some specific application cases:

1. Nanocellulose-polyethylene oxide (PEO) composite electrolyte membrane

• Case : A research team at Chalmers University of Technology in Sweden has developed a composite solid electrolyte membrane based on nanocellulose and polyethylene oxide (PEO).

• Details : The research team combined nanocellulose with PEO to prepare a solid electrolyte membrane for Nanocellulose not only lithium- ion batteries. improves the mechanical strength of the membrane, but also improves the ionic conductivity of PEO. This composite film exhibits high ionic conductivity at room temperature while maintaining good flexibility and thermal stability, and is suitable for use in new solid-state lithium batteries.

2. Nanocellulose-polymer electrolyte membrane

• Case : Researchers at Aalto University in Finland have developed a hybrid electrolyte membrane based on nanocellulose and polymers for high safety solid-state lithium batteries.

• Details : This study combined nanocellulose with a polymer to prepare a flexible solid electrolyte membrane. The network structure of nanocellulose enhances the mechanical strength of the membrane and plays a key role in ion channel formation. This film exhibits excellent conductivity and stability at both high and low temperatures, effectively inhibiting the formation of lithium dendrites and improving the safety of the battery.

3. Nanocellulose-ionic liquid composite electrolyte membrane

• Case : A study by Lawrence Berkeley National Laboratory in the United States demonstrates the application of nanocellulose and ionic liquid composite electrolyte membranes in lithium-ion batteries.

• Details : Researchers combined nanocellulose with ionic liquid to prepare a highly conductive electrolyte membrane. The fibrous structure of nanocellulose provides stable mechanical support while enhancing the distribution of ionic liquids in the membrane and improving the electrochemical properties of the membrane. The composite film exhibits high ionic conductivity and good electrochemical stability, and is suitable for high energy density lithium- ion batteries.

4. Nanocellulose-sodium phosphate electrolyte membrane

• Case : A research team from Kyoto University in Japan developed an electrolyte membrane based on the composite of nanocellulose and sodium phosphate.

• Details : The research team combined nanocellulose with sodium phosphate to prepare a solid electrolyte membrane for sodium ion batteries. Nanocellulose not only improves the mechanical strength of the membrane, but also effectively promotes the transport of sodium ions. This membrane exhibits excellent thermal stability and electrochemical properties, providing a novel and efficient electrolyte selection for sodium ion batteries.

5. Nanocellulose-chitosan composite electrolyte membrane

• Case : A research team from Zhejiang University in China has developed a composite electrolyte membrane based on nanocellulose and chitosan.

• Details : The researchers used the synergistic effect of nanocellulose and chitosan to prepare a green and environmentally friendly electrolyte membrane for Nanocellulose provides excellent mechanical properties and thermal stability, lithium- ion batteries. while chitosan enhances the ionic conductivity of the membrane. Experimental results show that the composite film not only has good electrochemical properties, but also exhibits high environmental friendliness and renewability .

These cases show the wide application prospect of nanocellulose in electrolyte membrane materials, especially in improving the mechanical strength, ionic conductivity and thermal stability of electrolyte membranes. Nanocellulose shows significant advantages.