Premium
Reversible Electrochemical Reaction of a Fluoride Shuttle Battery with a Bismuth(III) Fluoride Electrode and Electrolyte Containing Triphenylboroxine as an Anion Acceptor
Author(s) -
Konishi Hiroaki,
Minato Taketoshi,
Abe Takeshi,
Ogumi Zempachi
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202001163
Subject(s) - electrode , electrolyte , ball mill , electrochemistry , materials science , fluoride , battery (electricity) , inorganic chemistry , chemical engineering , chemistry , composite material , power (physics) , physics , quantum mechanics , engineering
We previously developed a fluoride shuttle battery containing a bismuth(III) fluoride (BiF 3 ) electrode; however, the battery exhibited several drawbacks including poor cycling performance and low practical capacity. In this research, to obtain a BiF 3 electrode with high cycling performance and practical capacity, an electrolyte containing triphenylboroxine as an anion acceptor was used, as previously reported. Moreover, BiF 3 was pulverized and adhered with conductive material using a planetary ball mill. The experimental results indicated that adhesion to the conductive material effectively increased the practical capacity of the BiF 3 electrode. To increase adhesion of the conductive material with BiF 3 particles, the rotation speed of the ball mill was increased. The resulting BiF 3 electrode exhibited high practical capacity in the first cycle, which was maintained in the following cycle. X‐ray absorption fine structure analysis results supported the progress of the reversible electrochemical reaction of the BiF 3 electrode during the cycling.