کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1284290 | 1497986 | 2014 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enhanced electrochemical properties of TiO2(B) nanoribbons using the styrene butadiene rubber and sodium carboxyl methyl cellulose water binder Enhanced electrochemical properties of TiO2(B) nanoribbons using the styrene butadiene rubber and sodium carboxyl methyl cellulose water binder](/preview/png/1284290.png)
• TiO2(B) nanoribbons were prepared by freeze-drying assisted hydrothermal process.
• SBR/CMC water binder was first used to prepare TiO2(B) anode electrode.
• Excellent capacity retention and rate performance were obtained using SBR/CMC.
• SBR/CMC is more promising than PVDF for preparation of TiO2(B) anode electrode.
TiO2(B) anode for lithium-ion batteries is prepared by the hydrothermal method. The styrene butadiene rubber and sodium carboxyl methyl cellulose (SBR/CMC) and polyvinylidene fluoride (PVDF) binders are used to prepare the TiO2(B) electrodes. Scanning electron microscope and electrochemical impedance spectroscopy show that the electrode prepared with SBR/CMC has better electrode maintainability and electrochemical kinetics which result in better electrochemical performance. The optimized SBR/CMC binder content is proposed to be in the range of 12–15 wt%. In addition, the 1 M LiPF6 electrolyte dissolved in EC:DMC = 3:7 is more suitable for the TiO2(B) electrode. Using this suggested binder content and electrolyte, the TiO2(B) material exhibits superior capacity retention and rate capability. Even at the 10 C rate, the material still shows a discharge capacity of 142.5 mAh g−1 which keeps very well after 800 cycles. Based on this work, it is concluded that SBR/CMC is a promising binder for the TiO2(B) anode which provides not only better electrochemical performance but also more cheaper and environmental friendly than PVDF.
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Journal: Journal of Power Sources - Volume 246, 15 January 2014, Pages 95–102