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Single‐phase All‐solid‐state Silver Battery using Ag 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 as Anode, Cathode, and Electrolyte
Author(s) -
Inoishi Atsushi,
Nishio Akira,
Kitajou Ayuko,
Okada Shigeto
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201802387
Subject(s) - anode , battery (electricity) , materials science , cathode , electrolyte , x ray photoelectron spectroscopy , analytical chemistry (journal) , phase (matter) , fast ion conductor , redox , electrode , chemical engineering , chemistry , metallurgy , power (physics) , physics , organic chemistry , chromatography , engineering , quantum mechanics
An all‐solid‐state silver battery made from a single material is reported. NASICON‐type Ag 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 functioned as the anode, cathode, and electrolyte. High rate capability at 298 K and low temperature operation (233 K) were possible due to its high electrical conductivity and low interfacial resistance with the concept of a single‐phase battery. The redox reactions of Ag/Ag + (anode) and Cr 3+ /Cr 4+ (cathode) were confirmed from X‐ray diffraction and X‐ray photoelectron spectroscopy measurements. The operating voltage of the battery in this study was higher than that for a silver battery using an AgI solid electrolyte because of the high redox potential of the cathode and the wider potential window of Ag 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 than that of AgI. Therefore, Ag 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 ‐based single‐phase battery is a promising new concept to obtain a high voltage silver‐ion battery, high‐rate capability and low temperature operation.