| 符小曼，程春语，张 定*.NiCo-LDH复合碳布柔性电极的制备及性能[J].海南师范大学学报自科版,2025,38(3):332-337 |
| NiCo-LDH复合碳布柔性电极的制备及性能 |
| Preparation and Properties of NiCo-LDH Composite Carbon Cloth Flexible Electrode |
| |
| DOI：10.12051/j.issn.1674-4942.2025.03.011 |
| 中文关键词: 柔性电极 镍钴氢氧化物 碳布 超级电容器 |
| 英文关键词: flexible electrode nickel-cobalt hydroxide carbon cloth supercapacitor |
| 基金项目:海南省自然科学基金（222MS060）；大学生创新训练项目（RC2400000745） |
|
| 摘要点击次数: 541 |
| 全文下载次数: 291 |
| 中文摘要: |
| 新型柔性超级电容器具有在连续的弯曲和高强度的拉伸条件下依旧稳定工作的性能，
成为柔性储能器件的研究热点。柔性电极是柔性超级电容器的关键组成部分，直接决定了器件的
电化学性能。碳布具有稳定的电化学性能、高机械柔韧性和优异的导电率等优势，但其存在电化
学活性差的问题。为提高碳布的电化学性能，需对碳布掺杂金属氢氧化物。镍钴基氢氧化物
（LDH）具有独特的层状结构和优异的电化学性能，成为新型柔性超级电容器的电极材料研究的新
方向。本文旨在开发应用于柔性超级电容器同时兼顾优异电容性能和机械柔性的电极材料。以
碳布（CC）作为柔性基底，采用水热合成法制备具有优异的电化学储能性能的NiCo-LDH，以全氟化
树脂溶液为黏合剂将其附着于碳布（CC）上，得到NiCo-LDH/CC柔性电极。采用扫描电镜（SEM）、
能谱分析（EDS）对NiCo-LDH/CC材料进行表征，利用三电极体系测试样品的电化学性能。试验表
明：NiCo-LDH/CC具有花瓣状结构，可为氧化还原反应提供丰富的活性位点，同时有益于电解质的
输送。NiCo-LDH/CC在2 mA·cm-2
电流密度下面积比电容可达141.6 F·cm-2
。在不同的电流密度
下，充/放电曲线呈现对称分布，说明材料具有良好的电化学可逆性；由效率曲线可见其在不同电流
密度下仍保持较好的充/放电效率；由比电容曲线可见即使电流密度增大到 12 mA·cm-2
，NiCoLDH/CC的电容依然达到74.1 F·cm-2
，证明其具有较好的倍率性能。结果表明负载了NiCo-LDH的
复合碳布柔性电极具有优异的电化学性能，为NiCo-LDH/CC电极在柔性超级电容器领域的应用提
供重要的研究基础。 |
| 英文摘要: |
| The new type of flexible supercapacitor has the performance of stable operation under continuous bending and
high-intensity stretching conditions, and has become a research hotspot for flexible energy storage devices. The flexible
electrode is a key component of the flexible supercapacitor, directly determining the electrochemical properties of the de⁃
vice. Carbon cloth has the advantages of stable electrochemical properties, high mechanical flexibility, and excellent electri⁃
cal conductivity, but it has the problem of poor electrochemical activity. To improve the electrochemical properties of car⁃
bon cloth, it is necessary to doped metal hydroxides. Nickel cobalt-based hydroxides (LDH) have a unique layered structure and excellent electrochemical properties, making them a new research direction for the electrode materials of new flexi⁃
ble supercapacitors. This paper aims to develop electrode materials for flexible supercapacitors that take into account both
excellent capacitive performance and mechanical flexibility simultaneously. Using carbon cloth (CC) as a flexible substrate,
NiCo-LDH with excellent electrochemical energy storage performance was prepared by the hydrothermal synthesis method.
Perfluorinated resin solution was used as the viscometer to attach it to the carbon cloth (CC), and the NiCo-LDH/CC flexi⁃
ble electrode was obtained. The NiCo-LDH/CC material was characterized by SEM and EDS. The electrochemical perfor⁃
mance of the samples was tested using a three-electrode system. The test results show that NiCo-LDH/CC has a petal-like
structure, which can provide abundant active sites for redox reactions and is conducive to the transport of electrolytes. The
specific capacitance of NiCo-LDH/CC can reach 141.6 F·cm-2
at a current density of 2 mA·cm-2
. Under different current
densities, the charge/discharge curves showed a symmetrical distribution, indicating that the material had a good electro⁃
chemical reversibility. The efficiency curve showed that it still maintained a good charge/discharge efficiency under
different current densities, The specific capacitance curve showed that even when the current density increased to 12 mA·cm-2
,
the capacitance retention rate of NiCo-LDH/CC was about 53% (74.1 F·cm-2
), proving its good rate performance. This
indica ted that the composite carbon cloth flexible electrode loaded with NiCo-LDH had excellent electrochemical proper⁃
ties, providing an important research basis for the application of NiCo-LDH/CC electrodes in the field of flexible
supercapacitors. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
