TY - JOUR
T1 - Study of Various (“Super Iron”) MFeO4 Compounds in Li Salt Solutions as Potential Cathode Materials for Li Batteries
AU - Koltypin, M
AU - Licht, S
AU - Nowik, I
AU - Vered, R. T
AU - Levi, E
AU - Gofer, Y
AU - Aurbach, D
PY - 2006
Y1 - 2006
N2 - In this work we studied the possibility of using Formula “super iron” compounds, including Formula , and Formula as potential cathode materials for rechargeable Li batteries, and their behavior in several nonaqueous Li salt solutions. Classic electrochemical techniques, such as cyclic voltammetry and chronopotentiometry combined with X-ray photoelectron spectroscopy, X-ray diffraction, Mössbauer spectroscopy, atomic adsorption, atomic emission, in situ and ex situ atomic force microscopy imaging, and diffuse reflectance Fourier Transform infrared spectroscopy were used in order to obtain a full picture of the electrochemical behavior of these compounds. Formula compounds such as Formula and Formula are reduced in the presence of Li ions to Formula compounds. Formula , and Formula or BaO are formed in amorphous or nanocrystalline structures. The reaction is partially reversible, i.e., Formula compounds can be reformed by oxidation. The mechanisms of the lithiation–delithiation of these systems and what limited their reversibility are discussed.
AB - In this work we studied the possibility of using Formula “super iron” compounds, including Formula , and Formula as potential cathode materials for rechargeable Li batteries, and their behavior in several nonaqueous Li salt solutions. Classic electrochemical techniques, such as cyclic voltammetry and chronopotentiometry combined with X-ray photoelectron spectroscopy, X-ray diffraction, Mössbauer spectroscopy, atomic adsorption, atomic emission, in situ and ex situ atomic force microscopy imaging, and diffuse reflectance Fourier Transform infrared spectroscopy were used in order to obtain a full picture of the electrochemical behavior of these compounds. Formula compounds such as Formula and Formula are reduced in the presence of Li ions to Formula compounds. Formula , and Formula or BaO are formed in amorphous or nanocrystalline structures. The reaction is partially reversible, i.e., Formula compounds can be reformed by oxidation. The mechanisms of the lithiation–delithiation of these systems and what limited their reversibility are discussed.
UR - https://scholar.google.co.il/scholar?q=The+study+of+various+MFeO4+%28%E2%80%9Csuper+iron%E2%80%9D%29+compounds+in+Li+salt+solutions+as+potential+cathode+materials+for+Li+batteries&btnG=&hl=en&as_sdt=0%2C5
M3 - Article
SN - 0013-4651
VL - 153
SP - 32
EP - 41
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 1
ER -