• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Flexible Cellulose Paper-based Asymmetrical Thin Film Supercapacitors with High-Performance for Electrochemical Energy Storage
【24h】

Flexible Cellulose Paper-based Asymmetrical Thin Film Supercapacitors with High-Performance for Electrochemical Energy Storage

机译：具有高性能的柔性纤维素纸基不对称薄膜超级电容器，用于电化学储能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cellulose paper (CP)-based asymmetrical thin film supercapacitors (ATFSCs) have been considered to be a novel platform for inexpensive and portable devices as the CP is low-cost, lightweight, and can be rolled or folded into 3D configurations. However, the low energy density and poor cycle stability are serious bottlenecks for the development of CP-based ATFSCs. Here, sandwich-structured graphite/Ni/Co_2NiO_4-CP is developed as positive electrode and the graphite/Ni/AC-CP as negative electrode for flexible and high-performance ATFSCs. The fabricated graphite/Ni/Co_2NiO_4-CP positive electrode shows a superior areal capacitance (734 mF/cm~2 at 5 mV/s) and excellent cycling performance with ≈97.6% C_(sp) retention after 15 000 cycles. The fabricated graphite/Ni/AC-CP negative electrode also exhibits large areal capacitance (180 mF/cm~2 at 5 mV/s) and excellent cycling performance with ≈98% C_(sp) retention after 15 000 cycles. The assembled ATFSCs based on the sandwich-structured graphite/Ni/Co_2NiO_4-CP as positive electrode and graphite/Ni/AC-CP as negative electrode exhibit large volumetric C_(sp) (7.6 F/cm~3 at 5 mV/s), high volumetric energy density (2.48 mWh/cm~3, 80 Wh/kg), high volumetric power density (0.79 W/cm~3, 25.6 kW/kg) and excellent cycle stability (less 4% C_(sp) loss after 20 000 cycles). This study shows an important breakthrough in the design and fabrication of high-performance and flexible CP-based electrodes and ATFSCs.
机译：基于纤维素纸（CP）的不对称薄膜超级电容器（ATFSC）被认为是廉价和便携式设备的新型平台，因为CP成本低，重量轻，并且可以卷起或折叠成3D配置。但是，低能量密度和较差的循环稳定性是开发基于CP的ATFSC的严重瓶颈。在此，开发了夹层结构的石墨/ Ni / Co_2NiO_4-CP作为正极，而石墨/ Ni / AC-CP作为负极用于柔性和高性能ATFSC。制成的石墨/ Ni / Co_2NiO_4-CP正极显示出优异的面电容（在5 mV / s时为734 mF / cm〜2）和出色的循环性能，在15 000次循环后保留了约97.6％的C_（sp）。制成的石墨/ Ni / AC-CP负极还显示出大的面电容（在5 mV / s时为180 mF / cm〜2）和出色的循环性能，在15 000次循环后保留了约98％的C_（sp）。以三明治结构的石墨/ Ni / Co_2NiO_4-CP为正极，石墨/ Ni / AC-CP为负极的组装式ATFSC的体积C_（sp）较大（在5 mV / s时为7.6 F / cm〜3）。 ，高体积能量密度（2.48 mWh / cm〜3，80 Wh / kg），高体积功率密度（0.79 W / cm〜3，25.6 kW / kg）和出色的循环稳定性（减少4％的C_（sp）损耗） 2万个周期）。这项研究显示了高性能和灵活的基于CP的电极和ATFSC的设计和制造方面的重要突破。

著录项

  • 来源
    《Advanced Functional Materials》 |2014年第45期|7093-7101|共9页
  • 作者

    Jin-Xian Feng; Sheng-Hua Ye; An-Liang Wang; Xue-Feng Lu; Ye-Xiang Jong; Gao-Ren Li;

  • 作者单位

    MOE Laboratory of Bioinorganic and Synthetic Chemistry KLGHEI of Environment and Energy Chemistry School of Chemistry and Chemical Engineering Sun Yat-sen University Guangzhou 510275, China;

    MOE Laboratory of Bioinorganic and Synthetic Chemistry KLGHEI of Environment and Energy Chemistry School of Chemistry and Chemical Engineering Sun Yat-sen University Guangzhou 510275, China;

    MOE Laboratory of Bioinorganic and Synthetic Chemistry KLGHEI of Environment and Energy Chemistry School of Chemistry and Chemical Engineering Sun Yat-sen University Guangzhou 510275, China;

    MOE Laboratory of Bioinorganic and Synthetic Chemistry KLGHEI of Environment and Energy Chemistry School of Chemistry and Chemical Engineering Sun Yat-sen University Guangzhou 510275, China;

    MOE Laboratory of Bioinorganic and Synthetic Chemistry KLGHEI of Environment and Energy Chemistry School of Chemistry and Chemical Engineering Sun Yat-sen University Guangzhou 510275, China;

    MOE Laboratory of Bioinorganic and Synthetic Chemistry KLGHEI of Environment and Energy Chemistry School of Chemistry and Chemical Engineering Sun Yat-sen University Guangzhou 510275, China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号