@article{oai:nagoya.repo.nii.ac.jp:00018689,
 author = {Muto, Shunsuke and Sasano, Yusuke and Tatsumi, Kazuyoshi and Sasaki, Tsuyoshi and Horibuchi, Kayo and Takeuchi, Yoji and Ukyo, Yoshio},
 issue = {5},
 journal = {Journal of The Electrochemical Society},
 month = {Mar},
 note = {We used a suite of transmission electron microscopy (TEM) and associated electron spectroscopy methods to examine the local structure and changes in the electronic structure of Lini0.8Co0.15Al0.05O2 positive electrode material. We found a scattered rock-salt phase near grain surfaces and grain boundaries, where Ni^3+ turned to Ni^2+, deduced from relative intensity ratios and fine structures of the L2,3 white-line peaks of the transition metals. The spatial distribution of the degraded phase throughout the secondary particle was found using a scanning TEM-electron energy loss spectroscopy spectral imaging technique and multivariate analysis. The degradation process and its relationship to the surface reactions with electrolytes is discussed based on the spatial-distribution map of the degraded phases.},
 pages = {A371--A377},
 title = {Capacity-Fading Mechanisms of LiNiO2-Based Lithium-Ion Batteries : II. Diagnostic Analysis by Electron Microscopy and Spectroscopy},
 volume = {156},
 year = {2009}
}