Journal ArticleDOI
Magnetic studies of phospho-olivine electrodes in relation with their electrochemical performance in Li-ion batteries
Reads0
Chats0
TLDR
In this article, a combination of analytical methods, i.e., magnetization, susceptibility, χ m (T ), and Raman scattering spectroscopy, appears to be a powerful tool for the detection of small amount of impurities.About:
This article is published in Solid State Ionics.The article was published on 2008-03-31. It has received 45 citations till now.read more
Citations
More filters
Journal ArticleDOI
Recent developments in cathode materials for lithium ion batteries
TL;DR: In this paper, the performance characteristics of transition metal oxides based on the α-NaFeO 2, spinel and olivine structures have been compared and approaches for improving their performances have been proposed.
Journal ArticleDOI
Electrochemical behavior and passivation of current collectors in lithium-ion batteries
TL;DR: In this paper, the authors examined several metals that are commonly employed as current collectors of positive and negative electrodes for rechargeable lithium batteries and introduced the electrochemical behavior and protective film formation processes of various metallic current collectors in representative electrolytes.
Journal ArticleDOI
Studies on electrochemical behaviour of zinc-doped LiFePO4 for lithium battery positive electrode
Atef Y. Shenouda,Hua-Kun Liu +1 more
TL;DR: In this paper, the effects of zinc oxide doping on LiFePO 4 have been studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and galvanostatic measurements.
Journal ArticleDOI
Raman spectroscopy of carbon-coated LiCoPO4 and LiFePO4 olivines
Elena Markevich,Ronit Sharabi,Ortal Haik,Valentina Borgel,Grigory Salitra,Doron Aurbach,Guenter Semrau,M. Schmidt,N. Schall,C. Stinner +9 more
TL;DR: In this paper, the effect of laser power on the Raman spectra of two carbon-coated nano-powders of LiCoPO4 and LiFePO4 olivine cathode materials were investigated.
Journal ArticleDOI
Surface effects on electrochemical properties of nano-sized LiFePO4
TL;DR: In this paper, a review of surface disorder effects, impurities, and intrinsic properties of Li-ion batteries is presented, involving sensitivity to exposure to humidity, and separate them into three categories.
References
More filters
Journal ArticleDOI
Phospho‐olivines as Positive‐Electrode Materials for Rechargeable Lithium Batteries
TL;DR: In this article, the authors showed that a reversible loss in capacity with increasing current density appears to be associated with a diffusion-limited transfer of lithium across the two-phase interface.
Journal ArticleDOI
Raman ``fingerprinting'' of amorphous carbon films
TL;DR: In this article, the authors compare the Raman spectra and other macroscopic properties of nearly one hundred amorphous carbon films deposited at five research laboratories by a total of five different methods in search of correlations useful for both process control and basic understanding of these materials.
Journal ArticleDOI
Fine-particle lithium iron phosphate LiFePO4 synthesized by a new low-cost aqueous precipitation technique
TL;DR: In this paper, phase pure, homogeneous, and well-crystallized lithium iron phosphate LiFePO4 was synthesized by aqueous co-precipitation of an Fe(II) precursor material and succeeding heat treatment in nitrogen.
Journal ArticleDOI
Resonant Raman scattering of hydrogenated amorphous carbon: Evidence for π‐bonded carbon clusters
M. Ramsteiner,J. Wagner +1 more
TL;DR: In this article, a high frequency shift of the main Raman peak is observed with increasing photon energy, interpreted in terms of scattering from π-bonded carbon clusters which is resonantly enhanced for incident photon energies approaching the π−π* resonance.
Journal ArticleDOI
Antiferromagnetism in LiFePO4
R. P. Santoro,R. E. Newnham +1 more
TL;DR: The magnetic structure of LiFePO4 has been determined from neutron diffraction data as mentioned in this paper, and the magnetic susceptibility measurements on polycrystalline material gave pelf= 5"45#m 0= 88 °K, and T~v = 50°K.