Si composite negative electrodes for lithium secondary batteries degrade in the dealloying period with an abrupt increase in \ninternal resistance that is caused by a breakdown of conductive network made between Si and carbon particles. This results from \na volume contraction of Si particles after expansion in the previous alloying process. Due to the large internal resistance, the \ndealloying reaction is not completed while Si remains as a lithiated state. The anodic performance is greatly improved either by \napplying a pressure on the cells or loading a larger amount of conductive carbon in the composite electrodes.
Pillar arrays fabricated on silicon substrates have been tested as potential anodes for lithium batteries. Electrodes of array characteristics, diameter fractional surface cover...
It has been discovered that lithium can be inserted into the intermetallic compound in a two‐phase reaction to yield the product . This finding has important implications for de...
Thermal pyrolysis of polyvinyl chloride dispersed with nanosized silicon and fine graphite particles at 900°C produces a novel Si/C composite for lithium storage material. Incor...
The authors studied the possibility of using a reducing intercalation compound such as MoO/sub 2/ or WO/sub 2/ as a replacement for metallic lithium in secondary electrochemical...
The electrochemical reaction of lithium with a crystalline Si composite electrode at room temperature was investigated using in situ X-ray diffraction (XRD) techniques. The stud...
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