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Combinatorial electrochemical cell array for high throughput screening of micro-fuel-cells and metal/air batteries
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10.1063/1.2755439
/content/aip/journal/rsi/78/7/10.1063/1.2755439
http://aip.metastore.ingenta.com/content/aip/journal/rsi/78/7/10.1063/1.2755439

Figures

Image of FIG. 1.
FIG. 1.

A longitudinal cross-section view of a disassembled combinatorial electrochemical cell array. 1, top anode end-plate with 16 cylindrical holes for anode material coating and screening; 2, components of air electrode on lower part of the cell array; 3, electrolyte membrane (or battery separator); 4, platinum catalyst coating for catalytic oxygen reduction; 5, carbon cloth for gas diffusion electrode; 6, cathode current collector with small holes for air passage; 7, air filter; 8, bottom cathode end plate with small holes for air passage; 9, bolt for assembling; 10, area for air passing on the cathode current collector; 11, area for air passing on cathode end plate; 12, hole for inserting bolt on cathode end plate; 13, hole for inserting bolt on anode end plate; 14, holes for anode material coating and screening; and 15, Teflon gasket for the electrode array on the bottom of the anode end plate.

Image of FIG. 2.
FIG. 2.

An overperspective view of a combinatorial electrochemical cell array with 16 holes for coating and screening of anode electrode materials. 16, bolt area. The labels 1, 3, 6, 8, and 14 have the same meanings as described in Fig. 1.

Image of FIG. 3.
FIG. 3.

A perspective view of an electrochemical system using a combinatorial cell array for high throughput coating and screening of electrode materials. 17, graphite rod as a screening probe; 18, hydrophilic carbon paper for fuel and electrolyte diffusion; 19, anode coating; 20, lead for communicating between a battery test station and the electrochemical cells in the cell array; and 21, lead for communicating between a battery test station and the common cathode of the cell array.

Image of FIG. 4.
FIG. 4.

Voltage-current curves of 16 parallel direct methanol micro-fuel-cells measured with a combinatorial electrochemical cell array.

Image of FIG. 5.
FIG. 5.

Effect of methanol concentration on the behaviors of voltage-current curves for micro-methanol/air-fuel-cells in a combinatorial electrochemical cell array. (A) The cell’s performance increases with increasing methanol concentration from ; and (B) the cell’s performance decreases with increasing methanol concentration from .

Image of FIG. 6.
FIG. 6.

Voltage-current curves of direct methanol micro-fuel-cells using mixed Pt and Ru blacks as the anode catalysts. The results were obtained with a combinatorial electrochemical cell array. Methanol concentration: .

Image of FIG. 7.
FIG. 7.

Voltage-current curves of micro-zinc/air-batteries obtained with a combinatorial electrochemical cell array.

Image of FIG. 8.
FIG. 8.

Effect of addition of Cu salt into the anode on micro-tin/air-batteries. The results were obtained with a combinatorial cell array. (A) The cell’s performance increases with increasing Cu salt from 0% to 15%; and (B) the performance decreases with increasing Cu salt from 15% to 75%.

Tables

Generic image for table
Table I.

Standard deviations obtained from 16 samples of micro-DMFCs.

Generic image for table
Table II.

Standard deviation obtained from 16 samples of micro-zinc/air-batteries.

Generic image for table
Table III.

Effect of Cu-salt content in the anode electrode on the discharge current of micro-tin/air-batteries.

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/content/aip/journal/rsi/78/7/10.1063/1.2755439
2007-07-13
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Combinatorial electrochemical cell array for high throughput screening of micro-fuel-cells and metal/air batteries
http://aip.metastore.ingenta.com/content/aip/journal/rsi/78/7/10.1063/1.2755439
10.1063/1.2755439
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