Lub phaj bipolar, ib qho tseem ceeb ntawm cov roj cell

Lub phaj bipolar, ib qho tseem ceeb ntawm cov roj cell

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Bipolar daim hlau

Bipolar daim hlauyog ua los ntawm graphite lossis hlau; lawv sib npaug faib cov roj thiaboxidant rau lub hlwb ntawm cov roj cell. Lawv kuj sau cov hluav taws xob generated tam sim no ntawm cov zis terminals.

Hauv ib lub cell roj, tsis muaj bipolar phaj; txawm li cas los xij, muaj ib lub phaj ib sab uas muabkev khiav ntawm electrons. Hauv cov roj hlwb uas muaj ntau tshaj ib lub xovtooj, muaj tsawg kawg yog ib lub phaj bipolar (kwv yees muaj nyob rau ntawm ob sab ntawm lub phaj). Bipolar daim hlau muab ob peb lub luag haujlwm hauv cov roj cell.

Qee qhov haujlwm no suav nrog kev faib cov roj thiab oxidant hauv cov hlwb, kev sib cais ntawm cov hlwb sib txawv, kev sau ntawmhluav taws xob tam sim notsim, kev khiav tawm ntawm cov dej los ntawm txhua lub cell, humidification ntawm gases thiab cua txias ntawm lub hlwb. Bipolar daim hlau kuj tseem muaj cov channel uas tso cai rau kev nkag mus ntawm cov reactants (roj thiab oxidant) ntawm txhua sab. Lawv tsimcov anode thiab cathode compartmentsnyob rau sab nraud ntawm lub phaj bipolar. Qhov tsim ntawm cov dej ntws tuaj yeem sib txawv; lawv tuaj yeem yog linear, coiled, parallel, comb-like or evenly spaced as displayed in below photo.

Daim duab 1.19

Qhov sib txawv ntawm bipolar phaj [COL 08]. a) Coiled flow channels; b) ntau coil flow channel; c) parallel flow channels; d) interdigitated flow channels

Cov ntaub ntawv raug xaiv raws litshuaj compatibility, corrosion kuj, kos,hluav taws xob conductivity, gas diffusion muaj peev xwm, impermeability, yooj yim ntawm machining, mechanical zog thiab lawv thermal conductivity.


Post lub sij hawm: Jun-24-2021
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