A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion Layer
In order to solve the problem that bolts in traditional packaged direct methanol fuel cells (DMFCs) take up a large area and reduce the specific energy (energy per unit weight) and power density (power per unit area), a new button-type micro direct methanol fuel cell (B-μDMFC) is designed,...
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doaj-6f4aec30c20b40159efd8b4f88421b4a2020-11-25T02:13:00ZengMDPI AGMicromachines2072-666X2019-09-01101065810.3390/mi10100658mi10100658A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion LayerYingli Zhu0Lei Gao1Jianyu Li2Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, School of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300384, ChinaTianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, School of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300384, ChinaTianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, School of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300384, ChinaIn order to solve the problem that bolts in traditional packaged direct methanol fuel cells (DMFCs) take up a large area and reduce the specific energy (energy per unit weight) and power density (power per unit area), a new button-type micro direct methanol fuel cell (B-μDMFC) is designed, assembled, and packaged. The cell with four different structures was tested before and after packaging. The results indicate that the button cell with three-dimensional graphene and springs has the best performance. The equivalent circuit and methanol diffusion model was applied to explain the experimental results. The peak volumetric specific power density of the cell is 11.85 mW cm<sup>−3</sup>. This is much higher than traditional packaged DMFC, because the novel B-μDMFC eliminates bolts in the structure and improves the effective area ratio of the cell.https://www.mdpi.com/2072-666X/10/10/658micro direct methanol fuel cells (μdmfcs)button-typegraphenegas diffusion layer (gdl) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yingli Zhu Lei Gao Jianyu Li |
spellingShingle |
Yingli Zhu Lei Gao Jianyu Li A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion Layer Micromachines micro direct methanol fuel cells (μdmfcs) button-type graphene gas diffusion layer (gdl) |
author_facet |
Yingli Zhu Lei Gao Jianyu Li |
author_sort |
Yingli Zhu |
title |
A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion Layer |
title_short |
A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion Layer |
title_full |
A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion Layer |
title_fullStr |
A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion Layer |
title_full_unstemmed |
A Novel Button-Type Micro Direct Methanol Fuel Cell with Graphene Diffusion Layer |
title_sort |
novel button-type micro direct methanol fuel cell with graphene diffusion layer |
publisher |
MDPI AG |
series |
Micromachines |
issn |
2072-666X |
publishDate |
2019-09-01 |
description |
In order to solve the problem that bolts in traditional packaged direct methanol fuel cells (DMFCs) take up a large area and reduce the specific energy (energy per unit weight) and power density (power per unit area), a new button-type micro direct methanol fuel cell (B-μDMFC) is designed, assembled, and packaged. The cell with four different structures was tested before and after packaging. The results indicate that the button cell with three-dimensional graphene and springs has the best performance. The equivalent circuit and methanol diffusion model was applied to explain the experimental results. The peak volumetric specific power density of the cell is 11.85 mW cm<sup>−3</sup>. This is much higher than traditional packaged DMFC, because the novel B-μDMFC eliminates bolts in the structure and improves the effective area ratio of the cell. |
topic |
micro direct methanol fuel cells (μdmfcs) button-type graphene gas diffusion layer (gdl) |
url |
https://www.mdpi.com/2072-666X/10/10/658 |
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