Lithium intercalation and deintercalation into lithium-iron phosphates doped with cobaltстатья
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Дата последнего поиска статьи во внешних источниках: 4 февраля 2014 г.
Аннотация:X-ray diffraction analysis, electrochemical tests and Mössbauer spectroscopy were used to study the processes occurring during charge and discharge of lithium ion battery with a cathode based on LiFePO4 doped with cobalt ions and coated with a thin layer of carbon. It has been shown that cobalt ions are orderly distributed in the structure of the cathode material, both in charged and discharged state, in such a way that the nearest environment of iron contains no more than one cobalt ion. The resulting material is characterized by acceleration of lithium intercalation and deintercalation processes.