Hierarchical FeSe2 Cathode

800 cycles stable

A disk-whisker FeSe2 cathode enabling reversible Mg2+/Na+ co-insertion, paired with a modified dual-salt ether electrolyte to overcome sluggish multivalent ion diffusion.

Zhou, Ting · Han, Tianli · Lin, Xirong · Jiamin, Liu · Zeng, Xiangbing · Peng, Zhan · Liu, Jinyun · Niu, Junjie

Nano Letters 2024

Specifications

能量密度

{'zh': '260.9', 'en': ''} Wh kg⁻¹

功率密度

{'zh': '600.8', 'en': ''} W kg⁻¹

and Coulombic efficiency

{'zh': '800', 'en': '>99.5'} %