Ku dallaca batteriga lithium anode balaarinta waa adag tahay in laga gudbo habka cusub ee Mareykanka iyo Shiinaha R <000000> kooxda D

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Soláthraí Stáisiún Cumhachta Inaistrithe

Sida laga soo xigtay warbixinnada warbaahinta ajnabiga ah, maadaama silikoon uu leeyahay cufnaanta tamarta sare, waxay noqotay walxo batari lithium-ion ah oo aad u soo jiidasho leh. Si kastaba ha ahaatee, xilliga dallacaadda, hoos u dhaca balaadhinta wuxuu gaari karaa 300% marka silikoonka unugga uu la falgalo lithium. Waqti ka dib, waxay si weyn u dhimi doontaa waxqabadka, wareegga gaaban ee batteriga, iyo ugu dambeyntii waxay horseedi doontaa xoqitaanka batteriga.

Si loo hagaajiyo khasaarooyinka kor ku xusan oo guud ahaan loo ilaaliyo cufnaanta tamarta batteriga, anode ee baytariga lithium-ion ayaa hadda lagu shaqeeyaa iyadoo la adeegsanayo silicon monoxide (SiOx, X≈1). Codsiga anode-ka silikoon-ku-saleysan waa mid aad u sarreeya, waxqabadka wareegga sidoo kale waa la hagaajiyay. Si kastaba ha noqotee, maaddadu wali kama hortagayso isbeddelka mugga, iyo habdhaqanka daciifka ah waa daciif.

Tiro badan oo shaqo cilmi-baaris ah ayaa la sameeyay si wax looga qabto dhibaatooyinka farsamo ee kor ku xusan. Maanta, kooxda cilmi-baarista ee dalkayga iyo Maraykanka waxay daabaceen natiijooyin cilmi-baaris waxayna heleen laba hab oo cusub oo horumarin ah. Natiijooyinka cilmi-baarista ee kooxda US: Non-dhesive silica oxide / kaarboon adag Kentucky University (UNIVERSITYE) kooxda cilmi baarista Ka dib markii la isku daro qaybaha oxide silikoon ku salaysan iyo kraftlignin, synthesizing a waxqabadka sare aan bonded Silicon-ku salaysan oxide / adag carbon (Binder-freesiox / c) samaynta electrodes ee baytariyada lithium.

Daawaynta kulaylka ka dib, lignin-ku wuxuu sameeyaa jidh wax-qabad ah (ConductiveMatrix), kaas oo qaadi kara tiro badan oo ah qaybo oksijiin-ku-salaysan silikoon si loo hubiyo isu-dheellitirka elektiroonigga ah, isku-xidhka, iyo la qabsiga falcelinta lithation / deodentation inta lagu jiro lithation / Delithiation. Bedelka mugga Qalabkani uma baahna inuu isticmaalo xidhayaasha caadiga ah ama kirishbooyada.

Waxqabadka korantada ka samaysan walxaha isku dhafan waa mid aad u fiican. Marka la barbar dhigo koronto yar oo silikoon ku salaysan (160%) ee heerka isbeddelka mugga, sifooyinka korantada ee farsamada ayaa aad u fiican, ferbonmatrix-ku waa weyn yahay, waxaana lagu hagaajin karaa isbeddelka mugga. Natiijooyinka cilmi-baarista kooxdayada: Micro SiOx / C Cabens (Core-Shell) Isku-dhafka kooxda cilmi-baarista ee waddankeyga waxay soo saareen xal hufan si ay u diyaariyaan isku-dhafka qolofka xudunta u ah micro SiOx / C.

Kooxda daraasadda ayaa isku qasan citricacid iyo kubbada wax lagu shubo silikoon-ku-salaysan oksaydh ka dhigay kaarboon, oo ay ku xigto isku-xidhka qolofka SiOx/C-core textured - SiOx micro core iyo citrate carbon CONFORMALCARBONSHELL. Qolfoofka kaarboonku wuxuu si weyn u kordhiyey korantada korantada ee oxides-ka silikoon-ku-saleysan, iyo isbeddelka mugga ee la qabsiga falcelinta lithium-ka/deod-ka. Electrodes-ka ay sameeyeen isku-dhafka SiOx / C waa 1296.

3mAh / g, iyo XAQIIQAYNTU waa sida ugu sareysa 99.8%, iyo xajinta awooda waa 65.1% (843.

5mAh / g) ka dib dallacaadda iyo sii daynta waa 200 jeer. Sida laga soo xigtay kooxda cilmi-baarista, hufnaanta siideynta ee kakan ayaa ah mid aad u wanaagsan. Habka ayaa lagu gaari karaa wax soo saar ballaaran, kharash-ku-ool ah, wuxuu soo saari karaa alaabada anode-ka ee waxqabadka sare leh ee laga sameeyay isku-dhafka adag ee SiOx / C.