公开(公告)号：US08072733B2

公开(公告)日：2011-12-06

申请号：US11990600

申请日：2006-08-17

Applicant: Hiroaki Hatori ,  Osamu Tanaike ,  Kenji Hata

Inventor： Hiroaki Hatori ,  Osamu Tanaike ,  Kenji Hata

IPC: H01G9/00

CPC classification number: H01G9/058 ,  H01G9/155 ,  H01G11/36 ,  Y02E60/13 ,  Y02T10/7022

Abstract: An electrochemical capacitor comprising a nonaqueous electrolyte and a pair of polarizable electrodes, wherein carbon nanotubes are used as an electrode material for at least one of the positive electrode and the negative electrode, the carbon nanotubes have a specific surface area of at least 700 m2/g and contain semiconductive carbon nanotubes, and the electrode material exhibits a voltage dependency of differential capacity by electrochemical doping. The electrochemical capacitor solves the problems associated with activated carbon electrodes and, exploiting the excellent characteristics of carbon nanotubes, has increased capacitance and increased energy density, therefore realizing a reduced internal resistance and a prolonged service life.

Abstract translation: 一种包含非水电解质和一对可极化电极的电化学电容器，其中使用碳纳米管作为所述正极和负极中的至少一个的电极材料，所述碳纳米管的比表面积为至少700m 2 / g并含有半导体碳纳米管，并且电极材料通过电化学掺杂表现出差分电容的电压依赖性。 电化学电容器解决了与活性碳电极相关的问题，利用碳纳米管的优异特性，增加了电容和增加了能量密度，从而实现了内阻降低和使用寿命的延长。

公开(公告)号：US20090122469A1

公开(公告)日：2009-05-14

申请号：US11990600

申请日：2006-08-17

Applicant: Hiroaki Hatori ,  Osamu Tanaike ,  Kenji Hata

Inventor： Hiroaki Hatori ,  Osamu Tanaike ,  Kenji Hata

IPC: H01G9/02

CPC classification number: H01G9/058 ,  H01G9/155 ,  H01G11/36 ,  Y02E60/13 ,  Y02T10/7022

Abstract: The electrochemical capacitor of the invention comprises a nonaqueous electrolyte and a pair of polarizable electrodes, wherein carbon nanotubes are used as an electrode material for at least one of the positive electrode and the negative electrode, the carbon nanotubes have a specific surface area of at least 700 m2/g and contain semiconductive carbon nanotubes, and the electrode material exhibits a voltage dependency of differential capacity by electrochemical doping.The electrochemical capacitor solves the problems with activated carbon electrodes and, exploiting the excellent characteristics of carbon nanotubes, has further increased capacitance and increased energy density, therefore realizing a reduced internal resistance and a prolonged service life.

Abstract translation: 本发明的电化学电容器包括非水电解质和一对可极化电极，其中使用碳纳米管作为正电极和负电极中的至少一个的电极材料，碳纳米管的比表面积至少为 700m 2 / g并含有半导体碳纳米管，电极材料通过电化学掺杂显示出差分电容的电压依赖性。 电化学电容器解决了活性碳电极的问题，利用碳纳米管的优异特性，进一步提高了电容和增加了能量密度，从而实现了内阻降低和使用寿命的延长。