Awoodda electrode waa farqiga u dhexeeya awoodda korantada ee u dhexeeya electrolyte iyo electrode. U muuqaalka muuqaalkan oo kale ah waxaa sabab u ah kala soocida khilaafaadka, kuwaas oo leh calaamado ka soo horjeeda xadka kala qaybsanaanta iyadoo la sameynayo lakab laba-siman. Kala aan ollogga ah ee lagu eedeeyay ee interface u dhexeeya koronto biraha iyo xal elektrolytka sabab u ifafaale ah sida kala iibsiga ee udhigo biraha in xal in geeddi-socodka sameynta nuqdad electrochemical iyo adsorption of udhigo ka elektrolytka ee dusha koronto ah, Barokaca gaaska ee ka baxsan ion iyadoon lagu soo oogin qashinka kareemka; Nonkoulomb adsorption adsorption of ions ama molecules ee dareeraha on electrode. Thanks to laba ifafaale iman kara koronto dambe marna waa eber, xitaa haddii, marka amarka dusha biraha waa loo siman yahay si eber. The buuxda qiimaha iman kara ee hal koronto ah aan la qeexay, waayo, habkan waxaa loo isticmaalaa marka la barbardhigo reer tixraaca iyo electrodes imtixaanka. iman kara koronto waa loo siman yahay si baaxadda ciidanka electromotive (EMF) , helay in Bannaanka electrochemical. Xalalka aqueous waxaa caado ah in la isticmaalo electrodes hydrogen. Walxaha caadiga ah ee noocan ah waxaa loo isticmaalaa heerar noocyo kala duwan oo lagu cabbiro korantada, iyo sidoo kale qalabka galvaniga. Aaladaha korantada ku jirta ee loo yaqaan 'hydrogen electrode' waa xadhig ama saxan ka sameysan biraha kaas oo ka soo nuugaya si fiican hydrogen gaas ah (palladium ama platinum waxaa badanaa la isticmaalaa). Saxanka noocan oo kale ah ayaa lagu duubay cadaadiska atmospheric oo leh hydrogen, ka dib markii taas oo lagu shubay xal aqueous hodanka ah ee hydrogen. Suurtagalnimada in taargooyo noocan oo kale ah ay tahay saamigal ah xoojinta ion ee xalka. Qeybtaasi waa heerka, taas oo ku xiran awoodda elektarooniga ee fal-celinta kiimikada la tiriyo.
Intii lagu guda jiray shirka unugyada electrochemical ku salaysan hydrogen iyo qalabka lagu qeexay on dusha ka mid ah biraha kooxda platina a socodka reaction (karo), taas oo macnaheedu yahay ama geedi socodka dib u soo kabashada ama lagu qayilo. Nooca geedi socodka wuxuu ku xiran yahay awooda falcelinta joogtada ah ee walxaha la go'aamiyey. Awoodda batroolka korantada ayaa loo maleynayaa in eber uu yahay marka cadaadiska hydrogen uu yahay jawi, xaddiga protonka ee xalka waa hal diga oo halkii litir iyo heerkulka 298 K. Haddii maadada daraasaddu ay ku jirto xaalad tixraac, waa, marka hawlqabadka saameynaya awoodda uu yahay midnimada, iyo Cadaadiska gaasku waa 0.101 MPa, qiimaha kartidaas oo kale waxaa loo yaqaan heerka. Iyada oo lagu qiyaaso EMF-ka electrode galvanic shuruudaha shuruudaha caadiga ah, awoodda caadiga ah ee elektrotiga ee fal-celinta kiimikada ayaa la xisaabiyaa. Caadi ahaan, qiimaha this waxaa lagu cabbiraa xaaladaha halkaas oo hawlaha oo dhan thermodynamic iman kara-dareen-celin u siman yihiin in midnimo, iyo cadaadiska gaaska waa 0.01 * 105Pa. Awoodda unugta hoose ee imtixaanka waxaa loo tixgelinayaa habboon haddii ay ku jiraan habka "hadafka" ee wareegga dibadda, electrons waxay ka dhaqaaqaan bidixda midigta midig, iyo qaybo wanaagsan oo lagu soo oogay elektaroolitiga.