Lub zog cia nyob rau hauv capacitors: tsom xam ntawm cov cab kuj thiab kev siv hluav taws xob teb zog
Raws li lub hauv paus ntawm lub zog cia khoom nyob rau hauv hluav taws xob circuits, capacitors khaws lub zog nyob rau hauv daim ntawv ntawm hluav taws xob teb zog. Thaum ob daim hlau ntawm lub capacitor txuas nrog lub zog hluav taws xob, cov nqi zoo thiab qhov tsis zoo sib sau ua ke ntawm ob daim hlau nyob rau hauv qhov kev txiav txim ntawm lub zog hluav taws xob, tsim kom muaj qhov sib txawv thiab tsim kom muaj hluav taws xob ruaj khov hauv dielectric ntawm daim hlau. Cov txheej txheem no ua raws li txoj cai ntawm kev txuag hluav taws xob. Lub tsub zuj zuj ntawm cov nqi yuav tsum tau ua haujlwm kom kov yeej lub zog hluav taws xob, thiab thaum kawg khaws lub zog hauv daim ntawv hluav taws xob. Lub zog cia lub peev xwm ntawm lub capacitor tuaj yeem suav tau los ntawm cov qauv E = 21CV2, qhov twg C yog lub peev xwm thiab V yog qhov voltage ntawm daim hlau.
Dynamic yam ntxwv ntawm hluav taws xob teb zog
Tsis zoo li cov roj teeb ib txwm muaj uas vam khom rau cov tshuaj muaj zog, lub zog cia ntawm cov capacitors yog tag nrho raws li qhov kev txiav txim ntawm lub cev hluav taws xob. Piv txwv li, electrolyticcapacitorskhaws lub zog los ntawm cov nyhuv polarization ntawm oxide zaj duab xis ntawm daim hlau thiab cov electrolyte, uas yog tsim rau cov xwm txheej uas yuav tsum tau them sai sai thiab tawm, xws li kev lim fais fab. Supercapacitors (xws li ob txheej txheej capacitors) tsim cov txheej txheem ob txheej los ntawm kev sib cuam tshuam ntawm cov pa roj carbon activated thiab cov electrolyte, txhim kho lub zog cia ceev. Nws cov hauv paus ntsiab lus tau muab faib ua ob pawg:
Muab ob npaug rau-txheej lub zog cia: Cov nqi them yog adsorbed rau ntawm electrode nto los ntawm hluav taws xob zoo li qub, tsis muaj tshuaj lom neeg, thiab muaj kev them nyiaj ceev ceev thiab tawm qhov ceev.
Faraday pseudocapacitor: Siv ceev ceev redox cov ntaub ntawv xws li ruthenium oxide los khaws cov nqi, nrog rau lub zog siab ceev thiab siab zog ceev.
Kev sib txawv ntawm lub zog tso tawm thiab kev siv
Thaum lub capacitor tso tawm lub zog, lub teb hluav taws xob tuaj yeem hloov mus rau hauv hluav taws xob sai sai los pab txhawb cov lus teb rau cov lus teb siab. Piv txwv li, nyob rau hauv lub hnub ci inverters, capacitors txo qhov voltage hloov thiab txhim kho lub zog conversion efficiency los ntawm filtering thiab decoupling zog; nyob rau hauv lub zog system,capacitorsoptimize daim phiaj stability los ntawm kev them nyiaj rau reactive zog. Supercapacitors yog siv rau tam sim no lub zog ntxiv thiab daim phiaj zaus hloov kho ntawm lub tsheb hluav taws xob vim lawv lub peev xwm teb millisecond.
Yav tom ntej Outlook
Nrog kev tawg ntawm cov ntaub ntawv tshawb fawb (xws li graphene electrodes), lub zog ntom ntom ntawm cov capacitors tseem nce ntxiv, thiab lawv daim ntawv thov scenarios tau nthuav dav los ntawm cov khoom siv hluav taws xob ib txwm siv mus rau cov teb xws li lub zog tshiab thiab cov phiajcim ntse. Kev siv hluav taws xob zoo hluav taws xob tsis yog tsuas yog txhawb nqa kev txhim kho thev naus laus zis, tab sis kuj dhau los ua ib feem tseem ceeb ntawm kev hloov pauv hluav taws xob.
Lub sij hawm xa tuaj: Mar-13-2025