@article{25152,
  keywords = {cathode, degradation, li-ion battery, raman microscopy},
  author = {Marie Kerlau and Marek Marcinek and Venkat Srinivasan and Robert Kostecki},
  title = {Reprint of "Studies of local degradation phenomena in composite cathodes for lithium-ion batteries"},
  abstract = {<p>LiNi<sub>0.8</sub>Co<sub>0.15</sub>Al<sub>0.05</sub>O<sub>2</sub> and LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> composite cathodes were cycled in model cells to study interfacial phenomena that could lead to electrode degradation. <em>Ex situ</em> spectroscopic analysis of the tested cathodes, which suffered substantial power and capacity loss, showed that the state of charge (SOC) of oxide particles on the cathode surface was highly non-uniform despite the deep discharge of the Li-ion cell at the end of the test. The inconsistent kinetic behavior of individual oxide particles was attributed to the degradation of electronic pathways within the composite cathodes. A simple theoretical model based on a distributed network showed that an increase of the contact resistance between composite electrode particles may be responsible for non-uniform local kinetic behavior of individual oxide particles and the overall degradation of electrochemical performance of composite electrodes.</p>},
  year = {2007},
  journal = {Electrochimica Acta},
  volume = {53},
  pages = {1385-1392},
  month = {12/2007},
  doi = {10.1016/j.electacta.2007.10.009},
  note = {<p>INNOVATIVE ELECTROCHEMISTRY ENTERPRISING SCIENCE</p><p>Selection of papers from the 57th Annual Meeting of the International Society of Electrochemistry 27 August-1 September 2006, Edinburgh, UK</p>},
  language = {eng},
}