The electrochemical behavior of composite anodes prepared either by mixing partially oxidized graphite and Cu powders or by coating the pristine partially oxidized graphite electrodes with few-nanometerthick Cu layers has been studied by slow-scan-rate cyclic voltammetry (SSCV) and galvanostatic charge/discharge cycles over the temperature range of −30 ◦C to 20◦C. The interfacial intercalation/deintercalation kinetics has also been investigated using electrochemical impedance spectroscopy (EIS).The role of the Cu in improving low-temperature performances and kinetics of graphite electrodes is discussed.
Lithium intercalation and interfacial kinetics of composite anodes formed by oxidized graphite and copper
NOBILI, Francesco;TOSSICI, Roberto;MARASSI, Roberto
2009-01-01
Abstract
The electrochemical behavior of composite anodes prepared either by mixing partially oxidized graphite and Cu powders or by coating the pristine partially oxidized graphite electrodes with few-nanometerthick Cu layers has been studied by slow-scan-rate cyclic voltammetry (SSCV) and galvanostatic charge/discharge cycles over the temperature range of −30 ◦C to 20◦C. The interfacial intercalation/deintercalation kinetics has also been investigated using electrochemical impedance spectroscopy (EIS).The role of the Cu in improving low-temperature performances and kinetics of graphite electrodes is discussed.File in questo prodotto:
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