TY - JOUR
T1 - Preparation and electrochemical performance of porous si/siox/g composite anode for lithium ion batteries
AU - Wang, Jing
AU - Zhang, Xiaoyan
AU - Wang, Ran
AU - Tan, Guoqiang
AU - Su, Yuefeng
AU - Wu, Feng
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2020/1/17
Y1 - 2020/1/17
N2 - Silicon/silicon oxides/graphite (Si/SiOx/G) composite with high capacity and excellent cycling performance has been synthesized via high temperature treatment, HF etching and high-energy ball milling for mixture of silicon oxide and graphite. The chemical composition and morphology of the sample was characterized by XRD, SEM and TEM. Large numbers of nanopores were formed in the as-prepared composite, providing three-dimensional transmission pathways for lithium ions and electrons. After 100 cycles, the electrode kept an excellent reversible capacity of 804.2mAh•g-1. The excellent electrochemical properties are mainly attributed to the uniform distribution of silicon particles in amorphous silicon oxide, the buffering effect of porous structure and the improvement of conductivity of the composite by graphite.
AB - Silicon/silicon oxides/graphite (Si/SiOx/G) composite with high capacity and excellent cycling performance has been synthesized via high temperature treatment, HF etching and high-energy ball milling for mixture of silicon oxide and graphite. The chemical composition and morphology of the sample was characterized by XRD, SEM and TEM. Large numbers of nanopores were formed in the as-prepared composite, providing three-dimensional transmission pathways for lithium ions and electrons. After 100 cycles, the electrode kept an excellent reversible capacity of 804.2mAh•g-1. The excellent electrochemical properties are mainly attributed to the uniform distribution of silicon particles in amorphous silicon oxide, the buffering effect of porous structure and the improvement of conductivity of the composite by graphite.
UR - http://www.scopus.com/inward/record.url?scp=85079762004&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/735/1/012015
DO - 10.1088/1757-899X/735/1/012015
M3 - Conference article
AN - SCOPUS:85079762004
SN - 1757-8981
VL - 735
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012015
T2 - 7th Annual International Conference on Material Science and Environmental Engineering, MSEE 2019
Y2 - 15 November 2019 through 16 November 2019
ER -
