Budada Graphite Spherical

1. Xuddunta Alaabta

Spherical Graphite Powder waxa laga sameeyaa garaafka sare ee garaafiga dabiiciga ah ee daahirsan sida substrate-ka, oo lagu farsameeyay iyada oo loo marayo afar hab oo sax ah oo sax ah oo ah "burburin aan dhab ahayn iyo sifeyn → jeexjeexa hawada hawada iyo spheroidization → sare - garaaf heerkul sare → wax ka beddelka dusha balaasmaha", oo ugu dambayntii loo sameeyay qaab budo cabbir ah. Faa'iidada asaasiga ah waxay ku jirtaa xoojinta laba-geesoodka ah ee "sifooyinka gudaha ee graphite + sifooyinka qaabdhismeedka": waxay xajisaa iska caabbinta hooseeya, heerkulka sare ee kuleylka, astaamaha caabbinta alkali ee graphite, waxayna wanaajisaa qulqulka budada (xagalka nasashada In ka yar ama la mid ah 30 digrii) samaynta budada garaafka caadiga ah. Waa qalab aasaasi ah oo lagama maarmaanka u ah dhinacyada tamarta cusub ee baytariyada lithium, sare{6}}dhamaadka elegtarooniga ah, iyo wax soo saarka saxda ah, gaar ahaan electrode taban ee lithium batari{7}, kaas oo si toos ah u wanaajin kara cufnaanta tamarta batteriga (ilaa 300Wh/kg ama ka badan) iyo xasiloonida wareegga.

2. Tilmaamaha Alaabta

sphericity aad u sarreeyaQaybuhu waa qaab wareegsan oo caadi ah ama qaab ahaan, oo leh xajmi ka weyn ama la mid ah 92% (heerka warshadaha Ka weyn ama la mid yahay 88%). Weelashada wareegyada ee qaybaha lagu arkay iskaanka microscopy elektarooniga ah (SEM) ayaa ka yar ama la mid ah 5%, taas oo yarayn karta iska caabbinta khilaafyada u dhexeeya qaybaha, yaraynta xirashada qalabka samaynta, iyo hagaajinta isku midka ah isku-darka walxaha, iyada oo heerka khasaaraha walxaha uu ka yar yahay ama la mid yahay 1%.

Qaybinta cabbirka walxaha ku salaysan xaalad: Cabbirka walxaha waxaa lagu habeyn karaa iyadoo loo eegayo xaaladda codsiga. D50-ka caadiga ah ee loo isticmaalo goobta baytariyada lithium-ka macmiisha waa 3-8μm, D50-ka caadiga ah ee loo isticmaalo goobta baytariyada lithium-ku waa 8-12μm, iyo D50-ka caadiga ah ee loo isticmaalo kaydinta tamarta ee goobta baytariyada lithium waa 12-18μm. Dhammaan tilmaamuhu waxay leeyihiin taako D10/D90 oo ka yar ama le'eg 10μm si looga fogaado leexashada dhumucda korantada ee ay keento cabbirka walxaha aan sinnayn.

Dhaqdhaqaaq hufan iyo kulaylka kuleylka: Kadib {{0}daawaynta heerkulku ka weyn yahay ama le'eg yahay 2800 digrii ka bacdi, waxa ku jira kaarboonka go'an waa ka weyn yahay ama la mid yahay 99.95% 160W/ (m·K). Marka la barbar dhigo garaafyada wareega ee caadiga ah, hufnaanta korantada ayaa kordhay 15% -20%, taas oo yarayn karta kulaylka inta lagu jiro dallacaadda batteriga iyo habka bixinta.

Xakamaynta wasakhda hoose ee aadka u hooseeya: Qaadashada habka "hydrochloric acid - hydrofluoric acid pickling + sare -ka saarida heerkulka wasakhda ah", waxa ku jira dambasku waa ka yar yahay ama la mid yahay 0.08%, iyo wasakhda muhiimka ah ee waxyeelada leh (Fe In ka yar ama le'eg 30ppm, Si ka yar ama la mid ah 25ppm ka hooseeya 25ppm) heerka warshadaha (mid walba in ka yar ama le'eg yahay 50ppm), ka fogaanshaha ions wasakhda ah ee ku dhex milmay korantada togan ee batteriga oo keenaysa hoos u dhac awooda.

La qabsiga deegaanka oo xooganXasilooni heer sare ah oo ku jirta pH 2-12 acidic iyo alkaline deegaanka (marka laga reebo nitric acid iyo sulfuric acid), heerkulka iska caabbinta heerkulku wuxuu kordhiyaa ilaa -250 darajo ilaa 3200 oo hoos yimaada jawiga aan firfircoonayn, korodhka qoyaanka In ka yar ama la mid ah 0.1% ka dib 30 maalmood ka dib jawi qoyan (huurka qaraabada ah Wax ka yar 5%) ifafaale.

Waafaqid qaabaynta sareCufnaanta tuubada ayaa ka weyn ama le'eg 1.3g/cm³ (garaafka caadiga ah ee wareega ee Ka weyn ama le'eg 1.1g/cm³), waxayna si fiican ula soconaysaa xirayaasha caadiga ah sida PVDF (polyvinylidene fluoride) iyo CMC (carboxymethyl cellulose). Cufnaanta isku xidhan ee xaashida korantada ee la sameeyay waxa ay gaadhi kartaa 1.6-1.8g/cm³, iyada oo buuxinaysa baahiyaha qaabaynta korantada awooda sare leh.

 

 

 

3. Isticmaalka Alaabta 

Walxaha korantada xun ee lithium{0}} baytariyada ion:

Beteriyada lithium ee awooda: La jaan qaada baytariyada ternary lithium baytariyada (NCM) iyo baytariyada phosphate iron lithium (LFP), loo isticmaalo baabuurta tamarta cusub (sida baakadaha korontada) iyo korontada culus- baabuurta xamuulka ah. Batarigu waxa uu hayn karaa xadiga xajinta awoodda oo ka weyn ama la mid ah 80% ka dib 1500 wareegyada, awooduna waxa ay gaadhi kartaa 80% 30 daqiiqo ee dallaca degdega ah.

Beteriyada lithium-ka macaamiisha ah: Waxaa loo isticmaalaa talefannada casriga ah iyo laptop-yada si loo kordhiyo cufnaanta tamarta batteriga (Ka weyn ama la mid ah 700Wh/L) oo loo kordhiyo nolosha batteriga hal isticmaal.

Kaydinta tamarta baytariyada lithium: Waxaa loo isticmaalaa saldhigyada tamarta kaydinta tamarta qoyska iyo nidaamka kaydinta tamarta saldhiga, oo leh xajinta awoodda xajinta ka weyn ama la mid ah 75% jawiga heerkulka hoose ee -20 digrii.

Xabagta dhaqdhaqaajinta dhamaadka sareU diyaari koollada elektaroonigga ah adigoo ku daraya budada qalinka ah iyo budada naxaasta, taas oo loo isticmaalo lakabka korantada ee looxyada wareegyada dabacsan (FPC) iyo dahaarka korantada ee anteenooyinka saldhigga 5G. Viscosity ee koollada waxaa lagu dejin karaa 5000-8000cP, iyo heerka kaadhka daabacadu wuu ka weyn yahay ama la mid yahay 98%.

Walxaha saliidaynta saxda ah: Sida saliid adag oo lagu daray mishiinka duulista saliida saliidda iyo dufanka caaryada heerkulka sare leh, iskudhafiga is jiid-jiidka ayaa u hooseeya sida 0.12, oo wali waxay sii wadi kartaa waxqabadka sifaynta ee xaaladaha heerkulka sare ee 300 digrii, kordhinta nolosha adeegga qaybaha 2-3 jeer.

Qalab isku dhafan oo shaqeynaya:

Qalabka korantada kuleylka leh ee isku dhafan: Isku dhafan aluminium aluminium ah oo loogu talagalay weelka kuleylka LED, kordhinta kuleylka kulaylka aluminium aluminium 30%, xallinta dhibaatada heerkulka sare ee hoos u dhaca kuulyada LED.

Waxyaabaha lidka ku ah: Isku-dhafka PP (polypropylene) si loo sameeyo filimka baakadaha qaybaha elektiroonigga ah, oo leh caabbinta dusha deggan ee 10⁶-10⁸Ω, buuxinta shuruudaha ilaalinta ESD.

Codsiyada goobta gaarka ah: Ka dib marka la beddelo wakiilada isku-xidhka silane, waxaa loo isticmaali karaa dahaarka taarikada unugyada laba-cirifoodka si kor loogu qaado iska caabbinta daxalka; Waxa kale oo loo isticmaali karaa sida wakiilka kaaliyaha ah ee koollada lacagta ah ee unugyada sawir-qaadista, hoos u dhigista qadarka koollada lacagta ah (10% -15%) iyo hoos u dhigista qiimaha qalabka sawir-qaadista.

4. Hababka Farsamada

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