Inzuzo enkulu yama-capacitor amafilimu e-organometallic ukuthi ayaziphilisa, okwenza lawa ma-capacitor abe ngelinye lama-capacitor akhula ngokushesha namuhla.

Kunezindlela ezimbili ezihlukene zokuziphulukisa kwama-capacitor amafilimu ensimbi: eyodwa ukukhipha ukuziphilisa;enye i-electrochemical self-healing.Okwangaphambili kwenzeka ku-voltage ephezulu, ngakho-ke kubuye kubizwe ngokuthi ukuzilapha kwe-high-voltage;ngoba lokhu kwakamuva kwenzeka futhi ku-voltage ephansi kakhulu, kuvame ukubizwa ngokuthi ukuzilapha kwe-low-voltage.

Khipha Ukuziphilisa

Ukuze ufanekise indlela yokukhishwa kokuziphilisa, cabanga ukuthi kukhona iphutha kufilimu ye-organic phakathi kwama-electrode amabili e-metalized anokumelana no-R. Kuye ngesimo sesici, kungase kube i-metallic defect, i-semiconductor noma ingalungile. i-insulated defect.Ngokusobala, lapho isici singesinye sangaphambili, i-capacitor izobe isizikhiphe ku-voltage ephansi.Kuphela esimweni sokugcina lapho lokho okubizwa ngokuthi i-high voltage discharge kuzipholisa.

Inqubo yokukhishwa kokuziphilisa ukuthi ngokushesha ngemva kokufaka i-voltage V ku-capacitor yefilimu eyenziwe ngensimbi, i-ohmic current I=V/R idlula kusici.Ngakho-ke, ukuminyana kwamanje J=V/Rπr2 kugeleza ku-electrode eyinsimbi, okungukuthi, indawo eseduze nesici (i-r encane iyi-r) futhi ukuphakama kwayo kwamanje kuba ngaphakathi kwe-electrode eyinsimbi.Ngenxa yokushisa kwe-Joule okubangelwa ukungalungi kokusetshenziswa kwamandla okungu-W=(V2/R)r, ukumelana no-R kwe-semiconductor noma isici sokuvikela kwehla kakhulu.Ngakho-ke, i-I yamanje kanye nokusetshenziswa kwamandla ka-W kukhuphuka ngokushesha, ngenxa yalokho, ukuminyana kwamanje J1= J=V/πr12 kuphakama kakhulu esifundeni lapho i-electrode eyinsimbi iseduze kakhulu nesici, futhi ukushisa kwayo kwe-Joule kungancibilikisa i-metallized. ungqimba esifundeni, okwenza i-arc phakathi kwama-electrode indize lapha.I-arc iyahwamuka ngokushesha futhi ilahle insimbi encibilikisiwe, yakhe indawo yokuhlukanisa evaleleke ngaphandle kongqimba lwensimbi.I-arc iyacinywa futhi ukuziphilisa kufinyelelwa.

Ngenxa yokushisa kwe-Joule kanye ne-arc ekhiqizwe ekukhishweni kwenqubo yokuziphulukisa, i-dielectric ezungeze isici kanye nendawo yokuhlukanisa i-insulation ye-dielectric surface ilinyazwa ngokungenakuvinjelwa ukulimala okushisayo nogesi, futhi ngaleyo ndlela ukubola kwamakhemikhali, i-gasification kanye ne-carbonization, ngisho ukulimala komshini kwenzeka.

Kusukela kulokhu okungenhla, ukuze kuzuzwe ukuziphilisa okuphelele kokuzikhipha, kuyadingeka ukuqinisekisa indawo efanelekile yendawo eduze nesici, ngakho-ke umklamo we-metalized organic film capacitor udinga ukuthuthukiswa ukuze kuzuzwe okuphakathi nendawo ezungezile isici, ukujiya okufanele kongqimba oluyinsimbi, indawo ene-hermetic, kanye nomthamo ofanele owumongo kanye nomthamo.Okubizwa ngokuthi ukukhishwa okuphelele kokuziphilisa kungukuthi: isikhathi sokuziphilisa sifushane kakhulu, amandla okuziphilisa amancane, ukuhlukaniswa okuhle kakhulu kwamaphutha, akukho monakalo ku-dielectric ezungezile.Ukuze kuzuzwe ukuziphilisa okuhle, ama-molecule efilimu ephilayo kufanele aqukathe isilinganiso esiphansi se-carbon kuma-athomu e-hydrogen kanye nenani elilinganiselwe le-oxygen, ukuze kuthi lapho ukubola kwama-molecule efilimu kwenzeka ekuzikhipheni kokuziphilisa, cha. ikhabhoni ikhiqizwa futhi akukho carbon deposition eyenzekayo ukugwema ukwakheka izindlela ezintsha conductive, kodwa kunalokho CO2, CO, CH4, C2H2 kanye namanye amagesi akhiqizwa ukucisha i-arc ngokukhuphuka okubukhali kwegesi.
Ukuze kuqinisekiswe ukuthi abezindaba abazungezile iphutha abalimali lapho bephulukisa, amandla okuziphilisa akufanele abe mkhulu kakhulu, kodwa futhi angabi mncane kakhulu, ukuze asuse ungqimba lwe-metalllization ezungeze isici, ukwakheka kwe-insulation. (ukumelana okuphezulu) indawo, isici sizohlukaniswa, ukufeza ukuziphilisa.Ngokusobala, amandla okuziphilisa adingekayo ahlobene eduze nensimbi yongqimba lwe-metalization, ukujiya, kanye nemvelo.Ngakho-ke, ukuze kuncishiswe amandla okuziphilisa futhi kuzuzwe ukuziphilisa okuhle, i-metalization yamafilimu e-organic anezinsimbi ezincibilikayo eziphansi zenziwa.Ngaphezu kwalokho, ungqimba lwe-metalization akufanele lube lukhulu ngokulinganayo futhi lube mncane, ikakhulukazi ukugwema imihuzuko, ngaphandle kwalokho. , indawo yokuhlukanisa i-insulation izoba njengegatsha futhi yehluleke ukufeza ukuziphilisa okuhle.Ama-capacitor e-CRE wonke asebenzisa amafilimu avamile, futhi ngesikhathi esifanayo ukuphathwa okuqinile kokuhlolwa kwezinto ezingenayo, ukuvimba amafilimu angalungile emnyango, ukuze ikhwalithi yamafilimu e-capacitor iqinisekiswe ngokugcwele.

Ngaphezu kokukhishwa kokuziphilisa, kukhona enye, okuyi-electrochemical self-healing.Ake sixoxe ngale nqubo esihlokweni esilandelayo.