Waa maxay saxanka laba-geesoodka ah ee graphite?

Saxanka laba-geesoodka ah ee Graphitewaa qayb muhiim ah oo loo isticmaalo qalabka korontada ku shaqeeya sida unugyada shidaalka iyo elektroolayda, oo badanaa laga sameeyo walxo graphite saafi ah oo sarreeya. Waxay door muhiim ah ka ciyaartaa falgallada korontada ku shaqeeya, oo inta badan loo isticmaalo in lagu sameeyo hadda, lagu qaybiyo gaasaska falcelinta (sida haydarojiin iyo oksijiin), iyo meelaha falcelinta kala duwan. Sababtoo ah labadeeda dhinac waxay la xiriiraan anode iyo cathode ee unugyada keligood ah ee ku xiga, iyagoo samaynaya qaab-dhismeed "bipolar" ah (dhinac waa goobta socodka anode-ka dhinaca kalena waa goobta socodka cathode-ka), waxaa loogu yeeraa saxan laba-geesood ah.

Qaab-dhismeedka saxanka laba-cirifoodka ee garaafitka

Saxannada laba-geesoodka ah ee graphite waxay badanaa ka kooban yihiin qaybaha soo socda:
1. Goobta Socodka: Dusha sare ee saxanka laba-cirifoodka waxaa loogu talagalay qaab-dhismeed goob socod oo isku dhafan si uu si siman ugu qaybiyo gaaska falgalka (sida haydarojiin, oksijiin ama hawo) oo uu u sii daayo biyaha la soo saaray.

2. Lakabka korontada qaada: Walxaha garaafiga laftoodu waxay leeyihiin gudbin wanaagsan waxayna si hufan u socodsiin karaan qulqulka.

3. Aagga shaabadayntaCidhifyada saxannada laba-geesoodka ah waxaa badanaa loogu talagalay qaab-dhismeedyo shaabadaysan si looga hortago daadashada gaaska iyo gelitaanka dareeraha.

4. Kanaallada qaboojinta (ikhtiyaar): Qaar ka mid ah codsiyada waxqabadka sare leh, kanaalada qaboojinta waxaa lagu naqshadeyn karaa gudaha saxannada laba-cirifoodka si loo xakameeyo heerkulka hawlgalka ee qalabka.

Hawlaha taarikada laba-cirifoodka ee graphite

1. Shaqada gudbisa:

Maadaama uu yahay elektaroodhka qalabka elektaroonikka, saxanka laba-cirifoodka ayaa mas'uul ka ah ururinta iyo socodsiinta hadda si loo hubiyo soo saarista waxtarka leh ee tamarta korontada.
2. Qaybinta gaaska:

Iyada oo loo marayo naqshadeynta kanaalka socodka, saxanka laba-cirifoodka ayaa si siman u qaybiya gaaska falgalka lakabka kicinta, isagoo kor u qaadaya falgalka elektrokiimikaalka.
3. Kala soocida aagagga falcelinta:

Unug shidaal ama elektrolyzer ah, taarikada laba-geesoodka ah waxay kala soocaan aagagga anode iyo cathode, taasoo ka hortagaysa gaasaska inay isku milmaan.
4. Kala firdhinta kulaylka iyo dheecaanka:

Saxannada laba-geesoodka ah waxay gacan ka geystaan ​​​​hagaajinta heerkulka hawlgalka qalabka iyo biyaha soo daaya ama waxyaabaha kale ee ka soo baxa falgalka.
5. Taageero farsamo:

Taarikada laba-geesoodka ah waxay bixiyaan taageero qaab-dhismeed oo loogu talagalay elektroodka xuubka, iyagoo hubinaya xasilloonida iyo cimri dhererka qalabka.

Maxaad u dooratay graphite inay noqoto walax laba-geesood ah?

Sifooyinka walxaha ee taarikada laba-geesoodka ah ee graphite
●Gudbinta sare:

Iska caabinta badan ee graphite waa mid hooseysa 10-15μΩ.cm (ka wanaagsan 100-200 μΩ·cm eesaxan bir ah oo laba-geesood ah) .

●Iska caabbinta daxalka:

Ku dhawaad ​​​​ma jiro daxal ku jira jawiga aashitada ee unugyada shidaalka (pH 2-3), cimriga adeegguna wuxuu gaari karaa in ka badan 20,000 saacadood.

●Fudud:

Cufnaanta waa qiyaastii 1.8 g/cm3 (7-8 g/cm3 saxanka biraha ah ee laba-geesoodka ah), taas oo faa'iido u leh yaraynta miisaanka isticmaalka gaadiidka.

●Hantida caqabadda gaaska:

Qaab-dhismeedka cufan ee graphite wuxuu si wax ku ool ah uga hortagi karaa gelitaanka haydarojiin wuxuuna leeyahay badbaado sare.

●Habayn fudud:

Maaddada garaafitku waa mid si fudud loo farsamayn karo waxayna habayn kartaa naqshadaha iyo cabbirrada kanaalka socodka ee adag iyadoo loo eegayo baahiyaha.

Sidee loo sameeyaa saxannada laba-geesoodka ah ee graphite?

Habka wax soo saarka eesaxanka laba-cirifoodka ee graphitewaxaa ka mid ah kuwan soo socda:
●Diyaarinta alaabta ceeriin ah:

Isticmaal nadiifnimo sare (>99.9%) graphite dabiici ah ama budada graphite macmalka ah.

Ku dar resin (sida resin phenolic) sidii xidhmo si kor loogu qaado xoogga farsamada.

●Qaabaynta Cadaadiska:

Walxaha isku dhafan waxaa lagu duraa caaryada waxaana lagu cadaadiyaa heerkul sare (200-300℃) iyo cadaadis sare (>100 MPa).

●Daaweynta Graphitization:

Kuleylinta ilaa 2500-3000℃ jawi aan firfircoonayn waxay keentaa in walxaha aan kaarboonka ahayn ay lumaan oo ay sameeyaan qaab-dhismeed garaafit cufan.

●Habaynta orodyahanka:

Isticmaal mashiinnada CNC ama laysarka si aad u qorto kanaallo serpentine ah, kuwa barbar socda ama kuwa isku xiran (qoto dheer 0.5-1 mm).

●Daaweynta dusha sare:

Dahaarka resin ama bir (sida dahabka, titanium) wuxuu yareeyaa iska caabbinta taabashada wuxuuna hagaajiyaa iska caabbinta xirashada.

Waa maxay isticmaalka taarikada laba-geesoodka ah ee graphite?

1. Unug Shidaal:

- Unugga shidaalka ee xuubka is-weydaarsiga proton (PEMFC)

- Unug Shidaal oo Adkaysan oo Oxide ah (SOFC)

- Unugga Shidaalka Methanol ee Tooska ah (DMFC)

2. Elektroliser:

- Soo saarista haydarojiin iyadoo la adeegsanayo elektrolis biyo ah

- Warshadaha Chlor-alkali

3. Nidaamka kaydinta tamarta:

- Bateriga socodka

4. Warshadaha Kiimikada:

- Fal-sameeyaha Korontada Kiimikada

5. Cilmi-baarista Shaybaarka:

- Horumarinta nooca tijaabada ah iyo tijaabinta unugyada shidaalka iyo elektroolayda

Soo koob

Saxannada laba-geesoodka ah ee graphitewaa qaybo muhiim u ah qalabka korontada dhaliya sida unugyada shidaalka iyo elektroolayda, waxayna leeyihiin shaqooyin badan sida wareejinta, qaybinta gaaska, iyo kala soocida meelaha falcelinta. Iyadoo la horumarinayo tignoolajiyada tamarta nadiifka ah, taarikada laba-geesoodka ah ee graphite ayaa si isa soo taraysa loogu isticmaalaa gawaarida tamarta cusub, nidaamyada kaydinta tamarta, wax soo saarka haydarojiinta kiimikada iyo meelaha kale.