Nanomaterials for Li-ion Batteries (AM4BAT project)

As is well known, nanomaterials are capable of enhancing battery behavior as well as being more cost-effective in the field of energy storage. Moreover, not only could nanomaterials such as electrospun nanofibers boost electrochemical properties, but their tunability and upscalability capacities must be considered for future storage devices.

In the framework of the AM4BAT project¹, novel materials are produced to optimize electrochemical performance, integrating them into an all-solid-state battery (ASSB). Therefore, nanomaterials play an important role, 1) applying doped carbon nanofibers (CNFs) as a lithiophilic current collector for the anode, and 2) developing polycrystalline and single-crystal LiNi_0.8Mn_0.1Co_0.1O₂ (NMC811) as a cathodic material for the battery. As for the anode, pre-lithiated ZnO-doped CNFs showed a stable performance in the stripping plating of Li in a symmetrical cell, achieving >1400 h at 0.4 mA cm^-2 with nearly <15 mV voltage fluctuations, indicating an optimal electrodeposition of Li into the CNFs. Regarding the cathode, electrochemical tests showed that polycrystalline NMC811 achieved the best performance, reaching values >150 mAh g^-1 at C/2 with the lowest fading rate.

Acknowledgments

This work has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 101069756 (AM4BAT project). This publication reflects only the author’s views and the European Union is not responsible for any use that may be made of the information it contains.

References

1. https://am4batproject.eu/