Batrị Flow Vanadium Redox
Batrị nke abụọ – Nlebanya sistemu ikuku
sitere na MJ Watt-Smith, … FC Walsh, na Encyclopedia of Electrochemical Power Sources
vanadium -vanadium redox eruba batrị (VRB)bụ M. Skyllas-Kazacos na ndị ọrụ ibe ya sụrụ ụzọ na 1983 na Mahadum New South Wales, Australia. Ndị otu dị iche iche gụnyere E-Fuel Technology Ltd na United Kingdom na-emepụta teknụzụ ugbu a na VRB Power Systems Inc. na Canada. Otu akụkụ nke VRB bụ na ọ na-eji otu kemịkalụ kemịkalụ na maanode na cathode electrolytes. VRB na-eji steeti oxidation anọ nke vanadium, na n'ezie enwere otu redox di na nwunye nke vanadium na ọkara cell ọ bụla. A na-eji di na nwunye V(II)–(III) na V(IV)–(V) mee ihe n'ime mkpụrụ ndụ na-adịghị mma na nke dị mma, n'otu n'otu. Na-emekarị, electrolyte na-akwado bụ sulfuric acid (~ 2-4 mol dm-3) na mkpokọta vanadium dị na nso nke 1-2 mol dm-3.
A na-egosi mmeghachi omume ụgwọ-mwepu na VRB na mmeghachi omume [I]–[III]. N'oge a na-arụ ọrụ, voltaji mepere emepe na-abụkarị 1.4 V na ụgwọ steeti 50% yana 1.6 V na steeti 100% nke ụgwọ. Eletrọd eji na VRB na-abụkarịikuku carbonma ọ bụ ndị ọzọ porous, ụdị carbon akụkụ atọ. Batrị ndị nwere obere ike ejirila carbon-polymer composite electrodes rụọ ọrụ.
Otu uru dị na VRB bụ na iji otu ihe ahụ na sel abụọ nke ọkara na-enyere aka izere nsogbu ndị metụtara mmetọ nke electrolytes abụọ nke ọkara cell n'oge ojiji ogologo oge. Electrolyte nwere ogologo ndụ ogologo oge, a na-ebelatakwa nsogbu mkpofu mkpofu. VRB na-enyekwa ike dị elu (<90% na nnukwu nrụnye), ọnụ ala dị ala maka ikike nchekwa buru ibu, nkwalite nke usoro dị adị, na ogologo ndụ okirikiri. Oke nwere ike ime gụnyere ọnụ ahịa isi obodo dị oke ọnụ nke electrolytes dabere na vanadium yana ọnụ ahịa yana oke ndụ nke akpụkpọ ahụ mgbanwe ion.
Oge nzipu: Mee-31-2021