Influencing Factors on Manganese Dioxide Deposited with Pulse Current Method for Supercapacitors

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Influencing Factors on Manganese Dioxide Deposited with Pulse Current Method for Supercapacitors

更新时间：2025-07-09

- Influencing Factors on Manganese Dioxide Deposited with Pulse Current Method for Supercapacitors
- Vol. 45, Issue 9, Pages: 114-118(2011)
- 作者机构：
  
  1. 西安交通大学电子陶瓷与器件教育部重点实验室,西安,710049
  2. 西安交通大学国际电介质研究中心,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： O646;TM911
- Online First：10 September 2011，
  
  Published：2011
- 稿件说明：
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Influencing Factors on Manganese Dioxide Deposited with Pulse Current Method for Supercapacitors[J]. 2011, 45(9): 114-118.
DOI：

Influencing Factors on Manganese Dioxide Deposited with Pulse Current Method for Supercapacitors[J]. 2011, 45(9): 114-118. DOI：

摘要

通过正交实验法研究了影响脉冲电流法合成MnO

超级电容器电极材料性能的影响因素

发现影响效果由大到小依次为:脉冲电流关断时间

醋酸锰水溶液浓度

脉冲电流密度

脉冲电流导通时间.在正交实验法得出的最优条件下

即醋酸锰浓度为0.5 mol/L

电流密度为250 A/m

导通时间为0.01 s

关断时间为0.2 s

所制备的MnO

薄膜电极材料表面具有丰富的纳米球结构

在10 mV/s的扫描速率下

3 mol/L的KCl溶液作为电解液

比容量可以达到575 F/g

并且在2 000 mV/s的快速充放电条件下

仍然能够保持良好的电容特性.

Abstract

Manganese dioxide electrode with nanoball structure deposited by pulse current method has high specific capacitance and good charge-discharge characteristics. In this paper

an orthogonal experimental method was conducted to improve the capacitive characteristics of the manganese dioxide. The optimum condition is concluded as the concentration of Mn(Ac)

of 0.5 mol/L

the current density of 250 A/m

the on-time of 0.01 s and the off-time of 0.2 s. The obtained manganese dioxide exhibits the specific capacitance of 575 F/g at the scanning rate of 10 mV/s. When the scanning rate increases to 2 000 mV/s

ideal capacitive behavior still remains.

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references

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