Rechargeable Lithium-Ion Battery Based on a Cathode of Copper Hexacyanoferrate

Víctor Rojas, Gustavo Cáceres, Silvana López, Rodrigo Henríquez, Paula Grez, Ricardo Schrebler, Emilio Navarrete, Francisco Herrera, Alvaro Caballero, Juan Luis Gómez-Cámer, Eduardo Munoz

Research output: Contribution to journalArticlepeer-review

Abstract

In this work, the performance of copper(II) hexacyanoferrate(III) (CuHCF) as a cathode material for lithium-ion batteries was studied. The compound was synthesized by a precipitation reaction in aqueous solution in a closed system. The morphology and structure show nanoparticles with sizes between 40 and 70 nm with a high agglomeration and a crystalline phase with a cubic structure, respectively. The material exhibited a stable performance with a working potential of around 3.6 V vs Li+/Li and a decrease in the charge transfer resistance due to increased ionic conductivity. The gravimetric capacity obtained is near 60 mAh g-1 during 300 cycles at a rate of C/20, close to the practical capacity. Considering its electrochemical performance, CuHCF could be a promising cathode material for lithium-ion batteries.

Original languageEnglish
Article number080515
JournalJournal of the Electrochemical Society
Volume168
Issue number8
DOIs
StatePublished - Aug 2021
Externally publishedYes

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