CN103137332A - 一种新能源汽车用超级电容器 - Google Patents

一种新能源汽车用超级电容器 Download PDF

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CN103137332A
CN103137332A CN 201110400180 CN201110400180A CN103137332A CN 103137332 A CN103137332 A CN 103137332A CN 201110400180 CN201110400180 CN 201110400180 CN 201110400180 A CN201110400180 A CN 201110400180A CN 103137332 A CN103137332 A CN 103137332A
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cnts
super capacitor
energy
car
carbon nano
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贡东方
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Abstract

本发明涉及一种新能源汽车用超级电容器，其特征在于：采用浓硫酸/浓硝酸剪裁碳纳米管(CNTs)，在CNTs表面氧化形成羧基或羟基，获得在水溶液中可以均匀分散的功能化碳纳米管(F-CNTs)；在F-CNTs和吡咯单体(Py)的分散水溶液中用电化学方法制备PPy/F-CNTs纳米复合物，以获得比能量大于25Wh/kg和峰值比功率大于55kW/kg的电极活性材料。采用该氧化剪裁方法获得了具有高比能量和高比功率的超级电容器。

Description

一种新能源汽车用超级电容器
技术领域
本发明属新能源汽车技术领域，涉及一种新能源汽车用超级电容器。 
背景技术
超级电容器研究的核心是开发出具有高比容量、宽电位窗、快速充放电能力、长寿命并且环境友好的电极材料。它采用氧化剪裁方法，获得了在水溶剂中可以长期稳定的功能化碳纳米管F-CNTs分散液，并用电化学制备了均匀的PPy/F-CNTs复合物，从而开发出具有高比能量和高比功率的超级电容器，技术指标已经达到同类产品国际先进水平，可用于电动汽车、太阳能、风能等新能源产业。 
发明内容
一种新能源汽车用超级电容器，其特征在于：碳纳米管的剪切与功能化，采用浓硫酸/浓硝酸剪裁碳纳米管(CNTs)，在CNTs表面氧化形成羧基或羟基，获得在水溶液中可以均匀分散的功能化碳纳米管(F-CNTs)，通过控制超声时间和混酸的温度来控制F-CNTs的长度和功能化程度；导电聚合物与碳纳米管的复合物制备，在F-CNTs和吡咯单体(Py)的分散水溶液中用电化学方法制备PPy/F-CNTs纳米复合物，以获得比能量大于25Wh/kg和峰值比功率大于55kW/kg的电极活性材料。 
采用该氧化剪裁方法获得了具有高比能量和高比功率的超级电 容器，其技术指标分别为：质量比容量Cw≥25F/g；体积比容量Cv≥15F/cm3；比能量≥25Wh/kg；体积比能量≥15Wh/L；比功率≥5.0kW/kg；峰值比功率≥55kW/kg。 
具体实施方式
新能源汽车用超级电容器，其碳纳米管的剪切与功能化，采用浓硫酸/浓硝酸剪裁碳纳米管(CNTs)，在CNTs表面氧化形成羧基或羟基，获得在水溶液中可以均匀分散的功能化碳纳米管(F-CNTs)，通过控制超声时间和混酸的温度来控制F-CNTs的长度和功能化程度；导电聚合物与碳纳米管的复合物制备，在F-CNTs和吡咯单体(Py)的分散水溶液中用电化学方法制备PPy/F-CNTs纳米复合物，以获得比能量大于25Wh/kg和峰值比功率大于55kW/kg的电极活性材料。采用该氧化剪裁方法获得了具有高比能量和高比功率的超级电容器，其技术指标分别为：质量比容量Cw≥25F/g；体积比容量Cv≥15F/cm3；比能量≥25Wh/kg；体积比能量≥15Wh/L；比功率≥5.0kW/kg；峰值比功率≥55kW/kg。 

Claims (1)

1.一种新能源汽车用超级电容器，其特征在于：采用浓硫酸/浓硝酸剪裁碳纳米管(CNTs)，在CNTs表面氧化形成羧基或羟基，获得在水溶液中可以均匀分散的功能化碳纳米管(F-CNTs)；在F-CNTs和吡咯单体(Py)的分散水溶液中用电化学方法制备PPy/F-CNTs纳米复合物，以获得比能量大于25Wh/kg和峰值比功率大于55kW/kg的电极活性材料。
CN 201110400180 2011-12-05 2011-12-05 一种新能源汽车用超级电容器 Pending CN103137332A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103779110A (zh) * 2014-01-27 2014-05-07 华南理工大学 一种线状柔性全碳超级电容器电极的制备方法及应用

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103779110A (zh) * 2014-01-27 2014-05-07 华南理工大学 一种线状柔性全碳超级电容器电极的制备方法及应用
CN103779110B (zh) * 2014-01-27 2016-07-27 华南理工大学 一种线状柔性全碳超级电容器电极的制备方法及应用

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Application publication date: 20130605