Micro-sized porous silicon@PEDOT with high rate capacity and stability for Li-ion battery anode
Micro-sized porous silicon@PEDOT with high rate capacity and stability for Li-ion battery anode
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具有高倍率容量和稳定性的微米级多孔硅@PEDOT,用于锂离子电池负极
DOI:
10.1016/j.matlet.2021.129712
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发表时间:
2021-06
影响因子:
3
通讯作者:
Kai Han
中科院分区:
文献类型:
--
作者:
Shuangfu Li;Jinhua Huang;Jue Wang (通讯作者);Kai Han
To address the serious volume expansion and poor conductivity of silicon anode in lithium ion batteries (LIBs), a strategy through coating conductive polymer on the surface of micro-Si via a facile wet chemical process is proposed. In this way, a porous micro-Si anode coated with poly (3, 4-ethylenedioxythiophene) (PEDOT) was synthesized. This material shows a capacity as high as 1168 mAh g−1at high current rate of 2000 mA g−1for anode of LIBs. The synergistic effect of porous structure and PEDOT protective layer could not only relieve the volume expansion, but also enhance the conductivity of Si. This study provides an attractive strategy to deal with volume expansion and low conductivity of Si, which could be very meaningful for the development of high energy density LIBs.
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