Phase engineering of cobalt hydroxide toward cation intercalation.

ABSTRACT: Multi-cation intercalation in aqueous and neutral media is promising for the development of high-safety energy storage devices. However, developing a new host matrix for reversible cation intercalation as well as understanding the relationship between cation intercalation and the interlayer structure is still a challenge. In this work, we demonstrate layered cobalt hydroxides as a promising host for cation interaction, which exhibit high metal ion (Li⁺, Na⁺, K⁺, Mg²⁺ and Ca²⁺) storage capacities after phase transformation. Moreover, it is found that α-Co(OH)₂ with an intercalated structure is more conducive to phase transition after electrochemical activation than β-Co(OH)₂. As a result, the activated α-Co(OH)

SUBMITTER: Li J 

PROVIDER: S-EPMC8179280 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature