Effect of binders on performance of Si/C composite as anode for Li-ion batteries

Effect of binders on performance of Si/C composite as anode for Li-ion batteries Si/C composite was prepared by ball milling and subsequent pyrolysis process using nanosilicon, flake graphite, and phenolic resin as raw materials. The effect of different binders on the performance of Si/C composite was investigated. XRD and FT-IR were used to characterize the structure of the binders, and SEM was used to characterize the morphology of the electrodes. The −1 electrochemical results showed that LA133 had the best performance; the initial charge capacity was 660.4 mAh g ,with a capacity retention of 92.9% after 50 cycles. Compared with PVDF and sodium alginate, better cycling performance was obtained using LA133 as binder of Si/C composite. . . . . Keywords Li-ion batteries Anode material Si/C composite Binder Electrochemical performance Introduction materials have attracted people’s attention because of their −1 high specific capacity (4200 mAh g ), environmental com- With the rapid development of battery markets, high-energy patibility, and low cost [9–11]. However, due to the large storage has attracted attention of scientists to satisfy the de- volume change (~ 300%) and low intrinsic conductivity dur- mands of portable electronics, electric vehicles, and energy- ing the alloying/dealloying process, the application of Si is efficient transportation [1–3]. Lithium-ion battery is in com- severely http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Effect of binders on performance of Si/C composite as anode for Li-ion batteries

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
ISSN
0947-7047
eISSN
1862-0760
D.O.I.
10.1007/s11581-018-2611-6
Publisher site
See Article on Publisher Site

Abstract

Si/C composite was prepared by ball milling and subsequent pyrolysis process using nanosilicon, flake graphite, and phenolic resin as raw materials. The effect of different binders on the performance of Si/C composite was investigated. XRD and FT-IR were used to characterize the structure of the binders, and SEM was used to characterize the morphology of the electrodes. The −1 electrochemical results showed that LA133 had the best performance; the initial charge capacity was 660.4 mAh g ,with a capacity retention of 92.9% after 50 cycles. Compared with PVDF and sodium alginate, better cycling performance was obtained using LA133 as binder of Si/C composite. . . . . Keywords Li-ion batteries Anode material Si/C composite Binder Electrochemical performance Introduction materials have attracted people’s attention because of their −1 high specific capacity (4200 mAh g ), environmental com- With the rapid development of battery markets, high-energy patibility, and low cost [9–11]. However, due to the large storage has attracted attention of scientists to satisfy the de- volume change (~ 300%) and low intrinsic conductivity dur- mands of portable electronics, electric vehicles, and energy- ing the alloying/dealloying process, the application of Si is efficient transportation [1–3]. Lithium-ion battery is in com- severely

Journal

IonicsSpringer Journals

Published: Jun 5, 2018

References

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