Bateri ya Vanadium Redox Flow-BATTERY Z'IBYIHARIYE – SYSTEMS Z'IMITEKERE | Incamake

Bateri ya Vanadium Redox Flow

BATERI Z'INKIKO Z'UBWIYUNGE – Incamake y'IBIKORESHO BYA FLOW

kuva kuri MJ Watt-Smith, … FC Walsh, muri Encyclopedia of Electrochemical Power Sources

Vanadium–bateri ya vanadium redox flow (VRB)yatangijwe cyane na M. Skyllas-Kazacos n'abo bakoranaga mu 1983 muri Kaminuza ya New South Wales, muri Ositaraliya. Ubu ikoranabuhanga ririmo gutezwa imbere n'imiryango myinshi irimo E-Fuel Technology Ltd yo mu Bwongereza na VRB Power Systems Inc. yo muri Kanada. Ikintu cyihariye cya VRB ni uko ikoresha ikintu kimwe cya chimique muri zombianode na electrolyte za cathodeVRB ikoresha imiterere ine ya oxidation ya vanadium, kandi byaba byiza hari icyiciro kimwe cya vanadium muri buri gice cy’uturemangingo. Ibyiciro bya V (II) – (III) na V (IV) – (V) bikoreshwa mu bice by’uturemangingo bya negative na positive, uko bikurikirana. Ubusanzwe, electrolyte ishyigikira ni aside sulfuriki (∼2–4 mol dm−3) kandi igipimo cya vanadium kiri hagati ya 1–2 mol dm−3.

Uburyo bwo gushyushya no gusohora umuriro muri VRB bugaragara muri reactions [I]–[III]. Mu gihe cy'imikorere, voltage y'amashanyarazi ifunguye ubusanzwe iba 1.4 V kuri 50% by'ingufu na 1.6 V kuri 100% by'ingufu. Electrodes zikoreshwa muri VRB ubusanzwe zibauduce twa karubonicyangwa ubundi bwoko bwa karuboni bufite imyenge, bufite imiterere itatu. Bateri zifite ingufu nke zakoresheje electrode za karuboni-polimeri.

Akamaro gakomeye ka VRB ni uko ikoreshwa ry'ikintu kimwe mu bice byombi bya selile bifasha kwirinda ibibazo bifitanye isano no kwanduzwa kwa elektroliti ebyiri za selile mu gihe cy'igihe kirekire. Elektroliti imara igihe kirekire kandi ibibazo byo guta imyanda biragabanuka. VRB itanga kandi ingufu nyinshi (<90% mu bikoresho binini), ikiguzi gito ku bubasha bwinshi bwo kubika, kongera ubushobozi bwa sisitemu zisanzweho, no kumara igihe kirekire. Inzitizi zishobora kubaho zirimo ikiguzi kinini cy'imari ya elektroliti zishingiye kuri vanadium hamwe n'igiciro n'igihe gito cy'ubuzima bwa membrane yo guhinduranya iyoni.