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Rarolla litharollo tse ka bang teng bakeng sa kholo ea dendride ea betri ea lithium-ion

Аўтар: Iflowpower - Cyflenwr Gorsaf Bŵer Cludadwy

Sehlopha sa lipatlisiso sa Motlatsi oa Moprofesa, Univesithi ea Davis, California, e hatisitse pampiri e ncha "Science Progress", e fana ka maikutlo a tharollo e ka &39;nang ea e-ba teng ho rarolla lithium rechargeable lithium battery dendrites. Sehlopha sa WAN se paka hore li-ion tse phallang haufi le cathode li ka eketsa polokeho ea betri e nchafalitsoeng ea moloko o latelang le bophelo ba ts&39;ebeletso. Betri ea tšepe ea lithium e sebelisa tšepe ea lithium joalo ka anode.

Libetri tsena li na le tefiso e phahameng &39;me li ka imena habeli, empa ts&39;ireletso ke bothata bo boholo. Ha li lefisa, li-ion tse ling li tla fokotsoa hore e be tšepe ea lithium ka holim&39;a sebaka sa cathode ebe e theha microstructure e sa tloaelehang ea sefate, e bitsoang dendritic, e ka qetellang e lebisa ho lipotoloho tse khutšoanyane kapa esita le ho phatloha. Ka khopolo, ho hōla ha likristale tsa dendritic ho bakoa ke tlhōlisano ea ho fana ka boleng ba boleng le lithium ion haufi le sebaka sa cathode.

Ha lebelo la phokotso ea ion le potlakile ho feta lebelo la phetisetso ea bongata, le hlahisa lekhalo le sa nke lehlakore la elektrone le se nang li-ion haufi le cathode, e bitsoang lera la tefiso ea sebaka. Ho lumeloa hore ho se tsitse ha lera lena ho ka baka kholo ea dendrites, kahoo ho fokotsa kapa ho e felisa ho ka fokotsa kholo ea dendrites, kahoo ho lelefatsa bophelo ba betri. Libetri tsa tšepe tsa lithium li ka hlahisa li-dendrite tsa tšepe habonolo, tse ka bakang potoloho e khuts&39;oane kapa ho phatloha ha betri.

Baenjiniere ba Univesithing ea California Davis ba bontša hore liphoso tsa ion haufi le cathode li ka thibela bothata bona. Setšoantšong sena, lebelo la ho phalla ha electrode e eketsehileng e ka fokotsa kholo ea likristale tsa dendritic holim&39;a metsi. Mohopolo oa deoxidation o fokotsehile ka 99% ea WAN ke ho etsa hore li-ion li phalle ka har&39;a li-cathode tse ka har&39;a mocha oa microfluidic ho khutlisetsa litefiso le ho etsa lekhalo lena.

Sehlopha se hlalosa tlhahlobo ea netefatso ea mohopolo pampiring, se fumane hore phallo ena ea ion e ka fokotsa kholo ea dendrites ka 99%. Bakeng sa WAN, thuto ena e monate hobane e bontša katleho ea ho sebelisa theknoloji ea microfluidic litabeng tse amanang le betri, le ho bula tsela bakeng sa lipatlisiso tsa nako e tlang tšimong. O itse: "Ka mokhoa ona oa motheo oa lipatlisiso le mokhoa oa microfluidic, re ka lekanya liphello tsa phallo ho dendrites.

"" Ha ho na lihlopha tse ngata tsa lipatlisiso ho ithuta sena. ". "Le hoja ho ke ke ha khoneha ho kopanya microfluid ho libeteri tsa sebele, sehlopha sa WAN se batla mekhoa e meng ea ho sebelisa molao-motheo oa thuto ena, le ho hlahisa phallo ea sebaka haufi le bokaholimo ba cathode ho lefella cations le ho felisa likarolo tsa tefiso ea sebaka.

O itse: "Re thabile haholo ho hlahloba kopo ea rona e ncha. "Re ntse re etsa moralo oa sebaka sa cathode ho hlahisa convection. ".

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