Simulation of power capacitor properties for electric vehicle power supply

Toshiyuki Momma, Shinichi Komaba, Tetsuya Osaka

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The energy and power densities of electric double layer capacitor were calculated in order to estimate the possibility of its application to the pulse power supply for an electric vehicle. The model capacitor is composed of a stack of cell unit simply assembled with bipolar module with the physical and electrochemical properties of aqueous or organic electrolytes. The calculation was done with the variations of cell numbers and the roughness of electrode where the roughness is assumed to be the ratio of real surface area to flat surface area. The resultant energy densities of models showed that the capacitor using organic electrolyte had a merit of high energy density caused by the wide potential window of organic electrolyte. The results of power density under the 30 s full discharge suggested that aqueous electrolyte gave high power density to the capacitor while organic electrolyte lower power output because of the high resistance of the electrolyte solution. Moreover, the power densities of capacitors with organic and aqueous electrolytes showed maximum and sharp decline with an increase in cell stacked number due to the increase of capacitor resistance. From the results, it is suggested that the development of new components and cell construction should be demanded for capacitor with organic electrolyte.

Original languageEnglish
Pages (from-to)115-120
Number of pages6
JournalDenki Kagaku
Volume65
Issue number2
Publication statusPublished - 1997

Fingerprint

Electric vehicles
Electrolytes
Capacitors
Surface roughness
Electrochemical properties
Physical properties
Electrodes

Keywords

  • Computer calculation
  • Double layer capacitor
  • Electric vehicle
  • Power capacitor

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Simulation of power capacitor properties for electric vehicle power supply. / Momma, Toshiyuki; Komaba, Shinichi; Osaka, Tetsuya.

In: Denki Kagaku, Vol. 65, No. 2, 1997, p. 115-120.

Research output: Contribution to journalArticle

@article{fc1ab6999add434ca011e3f6dae4b8a1,
title = "Simulation of power capacitor properties for electric vehicle power supply",
abstract = "The energy and power densities of electric double layer capacitor were calculated in order to estimate the possibility of its application to the pulse power supply for an electric vehicle. The model capacitor is composed of a stack of cell unit simply assembled with bipolar module with the physical and electrochemical properties of aqueous or organic electrolytes. The calculation was done with the variations of cell numbers and the roughness of electrode where the roughness is assumed to be the ratio of real surface area to flat surface area. The resultant energy densities of models showed that the capacitor using organic electrolyte had a merit of high energy density caused by the wide potential window of organic electrolyte. The results of power density under the 30 s full discharge suggested that aqueous electrolyte gave high power density to the capacitor while organic electrolyte lower power output because of the high resistance of the electrolyte solution. Moreover, the power densities of capacitors with organic and aqueous electrolytes showed maximum and sharp decline with an increase in cell stacked number due to the increase of capacitor resistance. From the results, it is suggested that the development of new components and cell construction should be demanded for capacitor with organic electrolyte.",
keywords = "Computer calculation, Double layer capacitor, Electric vehicle, Power capacitor",
author = "Toshiyuki Momma and Shinichi Komaba and Tetsuya Osaka",
year = "1997",
language = "English",
volume = "65",
pages = "115--120",
journal = "Electrochemistry",
issn = "1344-3542",
publisher = "Electrochemical Society of Japan",
number = "2",

}

TY - JOUR

T1 - Simulation of power capacitor properties for electric vehicle power supply

AU - Momma, Toshiyuki

AU - Komaba, Shinichi

AU - Osaka, Tetsuya

PY - 1997

Y1 - 1997

N2 - The energy and power densities of electric double layer capacitor were calculated in order to estimate the possibility of its application to the pulse power supply for an electric vehicle. The model capacitor is composed of a stack of cell unit simply assembled with bipolar module with the physical and electrochemical properties of aqueous or organic electrolytes. The calculation was done with the variations of cell numbers and the roughness of electrode where the roughness is assumed to be the ratio of real surface area to flat surface area. The resultant energy densities of models showed that the capacitor using organic electrolyte had a merit of high energy density caused by the wide potential window of organic electrolyte. The results of power density under the 30 s full discharge suggested that aqueous electrolyte gave high power density to the capacitor while organic electrolyte lower power output because of the high resistance of the electrolyte solution. Moreover, the power densities of capacitors with organic and aqueous electrolytes showed maximum and sharp decline with an increase in cell stacked number due to the increase of capacitor resistance. From the results, it is suggested that the development of new components and cell construction should be demanded for capacitor with organic electrolyte.

AB - The energy and power densities of electric double layer capacitor were calculated in order to estimate the possibility of its application to the pulse power supply for an electric vehicle. The model capacitor is composed of a stack of cell unit simply assembled with bipolar module with the physical and electrochemical properties of aqueous or organic electrolytes. The calculation was done with the variations of cell numbers and the roughness of electrode where the roughness is assumed to be the ratio of real surface area to flat surface area. The resultant energy densities of models showed that the capacitor using organic electrolyte had a merit of high energy density caused by the wide potential window of organic electrolyte. The results of power density under the 30 s full discharge suggested that aqueous electrolyte gave high power density to the capacitor while organic electrolyte lower power output because of the high resistance of the electrolyte solution. Moreover, the power densities of capacitors with organic and aqueous electrolytes showed maximum and sharp decline with an increase in cell stacked number due to the increase of capacitor resistance. From the results, it is suggested that the development of new components and cell construction should be demanded for capacitor with organic electrolyte.

KW - Computer calculation

KW - Double layer capacitor

KW - Electric vehicle

KW - Power capacitor

UR - http://www.scopus.com/inward/record.url?scp=0002387544&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002387544&partnerID=8YFLogxK

M3 - Article

VL - 65

SP - 115

EP - 120

JO - Electrochemistry

JF - Electrochemistry

SN - 1344-3542

IS - 2

ER -