Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5459612 | Journal of Alloys and Compounds | 2017 | 7 Pages |
Abstract
PAN-based carbon fibers have been studied in structural lithium-ion batteries (SLIBs), showing many better results and promises. However, the limitation in capacity is urgently solved. To remedy this shortage, one-dimensional (1D) bioinspired bamboo carbon fiber (BCF) and its composite (BCF@SnO2@C) are successfully fabricated. In the BCF@SnO2@C composite, the SnO2 is sandwiched between the BCF template and the coated glucose-derived carbon, showing sandwich-like structure. Due to the combined superiority of bioinspired BCF with good conductivity and buffer effect and the SnO2 with high theoretical specific capacity, the obtained BCF@SnO2@C composites are expected to use as an anode material for traditional lithium-ion batteries and future structural lithium-ion batteries. A high reversible capacity of 627.1 mAh gâ1 is maintained over 100 cycles at a current density of 100 mA gâ1, showing a huge increase five times as high as the reported carbon fibers in SLIBs. Even at a high current density of 1000 mA gâ1, the substantial discharge capacity can still reach 409.1 mAh gâ1. These excellent performances in capacity could urgently solve the obsessional issue, the limitation of capacity in current SLIBs when use commercial carbon fibers as anode materials.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Qigang Han, Zheng Yi, Fangxue Wang, Yaoming Wu, Limin Wang,