With a high theoretical capacity, silicon as anode materials for lithium battery has gained much more attention. But the large volume change during lithiation and delithiation strongly hinders their practical application. Our group has developed a series of conductive polymer to solve this problem, which can maintain good electrical conductivity and mechanical integrity with silicon particles during the lithiation/delithiation process and show good capacity and cycling ability. The new conductive polymer binder enables lithium doping under battery environment and the doping mechanism remains to be further studied. In this work, an electron-only device is designed to study the electron transportation mechanism in PFB. A steady-state current-voltage measurement is taken, transportation mechanism is analysis and transport parameter is deduced and also lithium doping mechanism is discussed.

Electron transportation mechanism of conductive polymer binder for Si anode in lithium battery

248th National Meeting (2014)

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