TY - JOUR
T1 - Electrodeposited Si-O-C as a high-rate performance anode for li-ion capacitor
AU - Ahn, Seongki
AU - Momma, Toshiyuki
AU - Sugimoto, Wataru
AU - Osaka, Tetsuya
N1 - Funding Information:
This work is partially supported by Advanced Low Carbon Technology Research and Development Program of the Japan Science and Technology Agency (JST-ALCA, JPMJAL1008). The laser scanning confocal microscope was done with financial supported by Grand-in-Aid for Scientific Research (S) from the Japan Society for the Promotion of Science (grant number: JP16H06368).
Publisher Copyright:
© The Author(s) 2019.
PY - 2019
Y1 - 2019
N2 - Li-ion capacitors (LIC) which bridge the advantages of supercapacitors and Li-ion batteries have attracted a great deal of attention as a promising energy storage device. In this study, we synthesize the Si-O-C by electrodeposition at low levels of electricity below 2.0 C cm-2 as an anode for LIC. The deposited Si amounts are controlled by charge density during electrodeposition from 0.3 to 1.0 C cm-2. The material and electrochemical characteristics of Si-O-C fabricated at a charge density of 1.0 C cm-2 are studied. The LIC consisting of Si-O-C anode shows an encouraging 95% retention of the initial capacity after 1000 cycles. In addition, the LIC shows a capacity retention ratio of 94% at 140 C-rate. This study reveals the potential prospect to use Si-O-C fabricated by electrodeposition as an anode for a high-rate capability for LIC.
AB - Li-ion capacitors (LIC) which bridge the advantages of supercapacitors and Li-ion batteries have attracted a great deal of attention as a promising energy storage device. In this study, we synthesize the Si-O-C by electrodeposition at low levels of electricity below 2.0 C cm-2 as an anode for LIC. The deposited Si amounts are controlled by charge density during electrodeposition from 0.3 to 1.0 C cm-2. The material and electrochemical characteristics of Si-O-C fabricated at a charge density of 1.0 C cm-2 are studied. The LIC consisting of Si-O-C anode shows an encouraging 95% retention of the initial capacity after 1000 cycles. In addition, the LIC shows a capacity retention ratio of 94% at 140 C-rate. This study reveals the potential prospect to use Si-O-C fabricated by electrodeposition as an anode for a high-rate capability for LIC.
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U2 - 10.1149/2.1451912jes
DO - 10.1149/2.1451912jes
M3 - Article
AN - SCOPUS:85073635690
SN - 0013-4651
VL - 166
SP - A2683-A2688
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 12
ER -
