Capacitor yog ib qho khoom siv uas khaws cov nqi hluav taws xob.Lub zog cia lub hauv paus ntsiab lus ntawm lub dav dav capacitor thiab ultra capacitor (EDLC) yog tib yam, ob qho tib si khw muag khoom hauv daim ntawv ntawm electrostatic teb, tab sis super capacitor yog qhov tsim nyog rau kev tso tawm sai thiab khaws cia ntawm lub zog, tshwj xeeb tshaj yog rau kev tswj xyuas lub zog thiab cov khoom siv tam sim ntawd. .
Cia peb tham txog qhov sib txawv tseem ceeb ntawm cov pa capacitors thiab super capacitors hauv qab no.
| Cov khoom sib piv | Conventional Capacitor | Supercapacitor |
| Txheej txheem cej luam | Pa capacitor yog ib qho khoom siv hluav taws xob zoo li qub, uas yuav muaj tus nqi tas mus li thiab siv dav.Nws yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob hauv kev lag luam hluav taws xob. | Supercapacitor, tseem hu ua electrochemical capacitor, ob txheej txheej capacitor, kub capacitor, Faraday capacitor, yog ib qho khoom siv hluav taws xob tsim los ntawm 1970s thiab 1980s los khaws lub zog los ntawm polarizing cov electrolyte. |
| Kev tsim kho | Ib tug pa capacitor muaj ob hlau conductors (electrodes) uas nyob ze ua ke nyob rau hauv parallel tab sis tsis nyob rau hauv kev sib cuag, nrog ib tug insulating dielectric nyob rau hauv nruab nrab. | Lub supercapacitor muaj cov electrode, ib qho electrolyte (muaj electrolyte ntsev), thiab ib tug separator (tiv thaiv kev sib cuag ntawm qhov zoo thiab tsis zoo electrodes). Cov electrodes yog coated nrog activated carbon, uas muaj me me pores ntawm nws nto kom nthuav dav thaj tsam ntawm cov electrodes thiab txuag hluav taws xob ntau. |
| Cov khoom siv dielectric | Aluminium oxide, polymer films lossis ceramics yog siv los ua dielectrics ntawm electrodes hauv capacitor. | Lub supercapacitor tsis muaj dielectric.Hloov chaw, nws siv hluav taws xob ob txheej tsim los ntawm cov khoom (electrode) thiab cov kua (electrolyte) ntawm qhov sib txuas tsis yog dielectric. |
| Txoj cai ntawm kev ua haujlwm | Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm capacitor yog tias tus nqi yuav raug txav los ntawm lub zog hauv hluav taws xob, thaum muaj cov dielectric ntawm cov neeg xyuas pib, nws cuam tshuam cov nqi txav thiab ua rau cov nqi sib sau ntawm tus neeg xyuas pib, ua rau cov khoom khaws cia. . | Supercapacitors, ntawm qhov tod tes, ua tiav ob txheej txheej them lub zog cia los ntawm polarizing cov electrolyte thiab los ntawm redox pseudo-capacitive nqi. Lub zog cia txheej txheem ntawm supercapacitors yog thim rov qab yam tsis muaj tshuaj lom neeg cov tshuaj tiv thaiv, thiab yog li tuaj yeem raug them rov qab thiab tso tawm ntau pua txhiab zaus. |
| Capacitance | Muaj peev xwm me dua. Lub peev xwm dav dav dav ntawm ob peb pF mus rau ntau txhiab μF. | Muaj peev xwm loj dua. Lub peev xwm ntawm supercapacitor yog qhov loj heev uas nws tuaj yeem siv los ua lub roj teeb.Lub peev xwm ntawm supercapacitor nyob ntawm qhov kev ncua deb ntawm electrodes thiab thaj tsam ntawm electrodes.Yog li ntawd, cov electrodes yog coated nrog cov pa roj carbon activated kom ua rau thaj chaw saum npoo kom ua tiav lub peev xwm siab. |
| Zog ceev | Tsawg | Siab |
| Lub zog tshwj xeeb | <0.1 Wh/kg | 1-10 Wh/kg |
| Lub zog tshwj xeeb | 100,000+ Wh/kg | 10,000+ Wh/kg |
| Charge / tso tawm lub sijhawm | Lub sij hawm them thiab tawm ntawm cov pa capacitors feem ntau yog 103-106 vib nas this. | Ultracapacitors tuaj yeem xa cov nqi them sai dua li cov roj teeb, nrawm li 10 vib nas this, thiab khaws cov nqi ntau dua ib chav tsev ntim ntau dua li cov khoom siv hluav taws xob.Qhov no yog vim li cas nws thiaj li txiav txim siab ntawm cov roj teeb thiab electrolytic capacitors. |
| Charge / tawm lub voj voog lub neej | luv dua | Ntev dua (feem ntau 100,000 +, mus txog 1 lab lub voj voog, ntau tshaj 10 xyoo ntawm daim ntawv thov) |
| Them / tso tawm efficiency | > 95% | 85% -98% |
| Ua haujlwm kub | -20 rau 70 ℃ | -40 txog 70 ℃ (zoo dua ultra-tsawg kub yam ntxwv thiab dav kub ntau yam) |
| Rated voltage | Siab dua | qis (feem ntau yog 2.5V) |
| Nqi | qis | Siab dua |
| Qhov zoo | Tsawg poob High integration ceev Active thiab reactive zog tswj | Lub neej ntev Ultra siab muaj peev xwm Them sai sai thiab lub sijhawm tso tawm High load tam sim no Kev khiav hauj lwm kub ntau dua |
| Daim ntawv thov | ▶ Tso zis du zog mov; ▶ Power Factor Kho (PFC); ▶Frequency filters, siab pass, low pass filters; ▶ Lub teeb liab txuas thiab decoupling; ▶ Lub cev muaj zog pib; ▶ Buffers (surge protectors thiab suab nrov lim); ▶ Oscillators. | ▶ Lub zog tshiab tsheb, kev tsheb ciav hlau thiab lwm yam kev siv tsheb thauj mus los; ▶ Uninterruptible fais fab mov (UPS), hloov electrolytic capacitor bank; ▶ Fais fab mov rau xov tooj ntawm tes, laptops, handheld devices, thiab lwm yam.; ▶ Rechargeable electric screwdrivers uas tuaj yeem them tag nrho hauv feeb; ▶ Cov teeb pom kev kub ceev thiab cov khoom siv hluav taws xob muaj zog siab; ▶ ICs, RAM, CMOS, moos thiab microcomputers, thiab lwm yam. |
Yog tias koj muaj qee yam ntxiv lossis lwm yam kev xav, thov koj xav nrog peb tham.
Post lub sij hawm: Dec-22-2021