Application cases of nanocellulose in electrode materials

There are some practical cases of the application of nanocellulose in electrode materials, demonstrating its huge potential in improving cell performance. Here are a few specific application cases:

1. Application of nanocellulose and silicon-based electrode materials

• Case : A research team at Washington State University has developed a composite electrode material based on nanocellulose and silicon for lithium- ion batteries.

• Details : Silicon has a very high theoretical capacity, but it is prone to significant volume expansion during charging and discharging, resulting in electrode crushing and capacity attenuation. The researchers used the high mechanical strength and flexibility of The results show that the composite electrode can maintain a high capacity after multiple cycles, demonstrating the huge potential of nanocellulose in improving the stability of silicon-based electrode materials.nanocellulose to encase silicon nanoparticles in the nanocellulose network, thus buffering volume expansion and significantly improving the cyclic stability and life of the electrode.

2. nanocellulose-carbon nanotube composite materials Application of in lithium-sulfur batteries

• Case : Research team at ETH Zurich Zurich has developed an electrode material based on nanocellulose and carbon nanotubes (CNTs) composite for lithium-sulfur batteries。

• Details : Lithium-sulfur batteries have attracted much attention due to the high specific energy density of sulfur, but the sulfur has poor conductivity and polysulfides will be produced during the charging and discharging process, resulting in attenuation of battery capacity. Researchers combined nanocellulose with carbon nanotubes to prepare an electrode material with a three-dimensional conductive network structure. Nanocellulose not only provides good mechanical support, but also effectively disperses carbon nanotubes, improving the conductivity of sulfur. Experimental results show that this composite electrode material significantly improves the capacity retention rate and cycle life of lithium-sulfur batteries .

3. Application of nanocellulose-graphene composite materials in supercapacitors

• Case : A research team at Nanyang Technical University in Singapore has developed an electrode material composited with nanocellulose and graphene for use in supercapacitors.

• Details : This study combined nanocellulose with graphene sheet to prepare a composite material with high conductivity and high mechanical strength. The fibrous structure of nanocellulose helps prevent overlap and agglomeration of graphene sheets, forming a good conductive network while increasing the specific surface area of ​​the electrode. The supercapacitor electrode material exhibits excellent specific capacitance and good cycling stability, demonstrating the application potential of nanocellulose in energy storage devices.

4. Nanocellulose and manganese oxide composite electrode material

• Case : A research team from Shandong University has developed a composite electrode material based on nanocellulose and manganese oxides for lithium- ion batteries.

• Details : Manganese oxide is a common electrode material with a high specific capacity, but its electrical conductivity is poor and is prone to volume changes during the cycle. The researchers used the network structure of nanocellulose to improve the conductivity of manganese oxides and provide mechanical support to reduce structural damage during circulation. Experiments show that the composite electrode material can maintain high capacity and stability after multiple charge and discharge cycles.

These cases show the diverse application of nanocellulose in electrode materials, especially in improving the conductivity, mechanical strength and cycle life of battery materials, showing its huge application potential.