TY - JOUR
T1 - The electrochemistry of amorphous Si-B thin film electrodes in Li cells
AU - Liu, Hui
AU - Zhu, Min
AU - Du, Zhijia
AU - Obrovac, M. N.
N1 - Publisher Copyright:
© The Author(s) 2015. Published by ECS. All rights reserved.
PY - 2016
Y1 - 2016
N2 - Si1-xBx thin films of 0.071 ≤ x ≤ 0.950 have been synthesized using combinational sputtering. All Si1-xBx film compositions had a highly amorphous structure consisting of amorphous Si and B phases, as characterized by X-ray diffraction. In Li cells, it was found that all of the Si is active and the B is inactive with lithium. Otherwise, the Si1-xBx films have similar characteristics as pure Si film electrodes in Li cells, except with reduced capacity due to the added B. However, shifts in the voltage curves appear when the B content is increased that may be induced by stress-voltage coupling between the active Si and the inactive B phases.
AB - Si1-xBx thin films of 0.071 ≤ x ≤ 0.950 have been synthesized using combinational sputtering. All Si1-xBx film compositions had a highly amorphous structure consisting of amorphous Si and B phases, as characterized by X-ray diffraction. In Li cells, it was found that all of the Si is active and the B is inactive with lithium. Otherwise, the Si1-xBx films have similar characteristics as pure Si film electrodes in Li cells, except with reduced capacity due to the added B. However, shifts in the voltage curves appear when the B content is increased that may be induced by stress-voltage coupling between the active Si and the inactive B phases.
UR - http://www.scopus.com/inward/record.url?scp=84949671668&partnerID=8YFLogxK
U2 - 10.1149/2.0451602jes
DO - 10.1149/2.0451602jes
M3 - Article
AN - SCOPUS:84949671668
SN - 0013-4651
VL - 163
SP - A192-A196
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 2
ER -
