Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 6, Issue 6, Pages 420-427Publisher
SPRINGER-VERLAG
DOI: 10.1007/s100080100244
Keywords
mesocarbon microbeads; boron doping; electrochemical properties
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The structure and anodic performance of boron-doped and undoped mesocarbon microbeads (MCMBs) have been comparatively studied and the results obtained by XPS, XRD, SEM, Raman spectroscopy and electrochemical measurements are discussed. It is found that boron doping introduces a depressed d(002) spacing and the larger amount of unorganized carbon, which induces vacancy formation in the graphite planes and leads to a quite different morphology from that of the undoped material. Electrochemical charge/discharge cycle tests indicated that after boron doping the lithium intercalation was carried through at a somewhat higher potential, being attended by greater irreversible capacity loss.
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