Layered LiNi0.95Ti0.05O2 cathodes were prepared by solid-state reaction and characterized by various techniques. X-ray diffraction shows that the samples have highly ordered and phase-pure layered compounds after heating at 750degreesC in an O-2 atmosphere. Scanning electron microscopy and particle size distribution analysis reveal that the LiNi0.95Ti0.05O2 material has spherical morphology with particle size of about 12 mum. The LiNi0.95Ti0.05O2 electrodes exhibited large capacity and excellent electrochemical behavior. X-ray photoelectron spectroscopy confirms the existence of tetravalent titanium as a substituent. Indications are that the structural integrity of the LiNi1-xTixO2 materials was preserved because the Ti4+ ions prevented impurity Ni2+ migration into the lithium sites. Hybrid pulse power characterization testing shows the area specific impedance of 22 Omega cm(2), indicating that the materials could provide more than enough power to level the load on the main engine of the hybrid electric vehicle. Aging tests also show stable impedance values as a function of time (days) at 55 degreesC, which indicates that the battery based on this material could exhibit long calendar life. (C) 2003 The Electrochemical Society.