Black phosphorus composites with engineered interfaces for high-rate high-capacity lithium storage

We report use of black phosphorus (BP) as the active anode for high-rate, high-capacity Li storage. The formation of covalent bonds with graphitic carbon restrains edge reconstruction in layered BP particles to ensure open edges for fast Li+ entry; the coating of the covalently bonded BP-graphite particles with electrolyte-swollen polyaniline yields a stable solid–electrolyte interphase and inhibits the continuous growth of poorly conducting Li fluorides and carbonates to ensure efficient Li+ transport. The resultant composite anode demonstrates an excellent combination of capacity, rate, and cycling endurance.

Source: ScienceNOW - October 8, 2020 Category: Science Authors: Jin, H., Xin, S., Chuang, C., Li, W., Wang, H., Zhu, J., Xie, H., Zhang, T., Wan, Y., Qi, Z., Yan, W., Lu, Y.-R., Chan, T.-S., Wu, X., Goodenough, J. B., Ji, H., Duan, X. Tags: Chemistry, Materials Science r-articles Source Type: news