Abstract
A 3-D microscopic model is set up for studying the roles of different components in mediator supercapacitor. In the model, mediator clusters are interfacing with active carbon, carbon fibers, and polymer electrolyte. Different conductivities, capacities, and mechanical properties were assigned to different components. Computational analyses were conducted using COMSOL Multiphysics. Hotspots appear around mediator clusters because of current concentration around them during charging/discharging. Further minimization of the mediator clusters will help mitigate this issue. Total capacitance of mediator supercapacitor increases exponentially when mediator capacitance and activated carbon capacitance reaches critical values. In addition, the mediator supercapacitor stores more charge with higher electrolyte conductivity. When applied pressure is high, stress concentrates around carbon fibers which cause the destruction of polymer electrolyte.
| Original language | English (US) |
|---|---|
| Title of host publication | Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion |
| Publisher | Electrochemical Society Inc. |
| Pages | 15-30 |
| Number of pages | 16 |
| Volume | 72 |
| Edition | 8 |
| ISBN (Electronic) | 9781607685395 |
| DOIs | |
| State | Published - 2016 |
| Event | Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion - 229th ECS Meeting - San Diego, United States Duration: May 29 2016 → Jun 2 2016 |
Other
| Other | Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion - 229th ECS Meeting |
|---|---|
| Country | United States |
| City | San Diego |
| Period | 5/29/16 → 6/2/16 |
Fingerprint
Keywords
- 3D microscopic model
- Mediator
- Supercapacitor
ASJC Scopus subject areas
- Engineering(all)
Cite this
A realistic 3D model of mediator supercapacitors in micrometer level. / Wang, Y.; Zhang, C.; Qiao, X.; Zhou, Xiangyang.
Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion. Vol. 72 8. ed. Electrochemical Society Inc., 2016. p. 15-30.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A realistic 3D model of mediator supercapacitors in micrometer level
AU - Wang, Y.
AU - Zhang, C.
AU - Qiao, X.
AU - Zhou, Xiangyang
PY - 2016
Y1 - 2016
N2 - A 3-D microscopic model is set up for studying the roles of different components in mediator supercapacitor. In the model, mediator clusters are interfacing with active carbon, carbon fibers, and polymer electrolyte. Different conductivities, capacities, and mechanical properties were assigned to different components. Computational analyses were conducted using COMSOL Multiphysics. Hotspots appear around mediator clusters because of current concentration around them during charging/discharging. Further minimization of the mediator clusters will help mitigate this issue. Total capacitance of mediator supercapacitor increases exponentially when mediator capacitance and activated carbon capacitance reaches critical values. In addition, the mediator supercapacitor stores more charge with higher electrolyte conductivity. When applied pressure is high, stress concentrates around carbon fibers which cause the destruction of polymer electrolyte.
AB - A 3-D microscopic model is set up for studying the roles of different components in mediator supercapacitor. In the model, mediator clusters are interfacing with active carbon, carbon fibers, and polymer electrolyte. Different conductivities, capacities, and mechanical properties were assigned to different components. Computational analyses were conducted using COMSOL Multiphysics. Hotspots appear around mediator clusters because of current concentration around them during charging/discharging. Further minimization of the mediator clusters will help mitigate this issue. Total capacitance of mediator supercapacitor increases exponentially when mediator capacitance and activated carbon capacitance reaches critical values. In addition, the mediator supercapacitor stores more charge with higher electrolyte conductivity. When applied pressure is high, stress concentrates around carbon fibers which cause the destruction of polymer electrolyte.
KW - 3D microscopic model
KW - Mediator
KW - Supercapacitor
UR - http://www.scopus.com/inward/record.url?scp=85010770175&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85010770175&partnerID=8YFLogxK
U2 - 10.1149/07208.0015ecst
DO - 10.1149/07208.0015ecst
M3 - Conference contribution
AN - SCOPUS:85010770175
VL - 72
SP - 15
EP - 30
BT - Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion
PB - Electrochemical Society Inc.
ER -