Authors: V. Koleva, M. Kalapsazova, D. Marinova, S. Harizanova, R. Stoyanova



10.1002/cssc.202201442

Abstract:

To outline the role of dual-ion intercalation chemistry to reach sustainable energy storage, the present Review aimed to compare two types of batteries: widely accepted dual-ion batteries based on cationic and anionic co-intercalation versus newly emerged hybrid metal-ion batteries using the co-intercalation of cations only. Among different charge carrier cations, the focus was on the materials able to co-intercalate monovalent ions (such Li+ and Na+, Li+ and K+, Na+ and K+, etc.) or couples of mono- and multivalent ions (Li+ and Mg2+, Na+ and Mg2+, Na+ and Zn2+, H+ and Zn2+, etc.). Furthermore, the Review was directed on co-intercalation materials composed of environmentally benign and low-cost transition metals (e. g., Mn, Fe, etc.). The effect of the electrolyte on the co-intercalation properties was also discussed. The summarized knowledge on dual-ion energy storage could stimulate further research so that the hybrid metal-ion batteries become feasible in near future.

Graphical Abstract

The more the merrier: The co-intercalation chemistry underlays the function of hybrid metal-ion batteries (HMIBs) and determines their advantages over single-ion rechargeable ion batteries. The present highlights the peculiarities of co-intercalation reactions in comparison with single-ion intercalation ones, as well as emphasizing the synergetic action between co-intercalation reactions and the dual-salt electrolytes. Recent achievements in the performance of HMIBs are also summarized.