Indlela iNano Graphene Powder Emisa Ngayo Ukuphela Komthamo Webhetri

Izinto ezibalulekileyo ekufuneka ziqwalaselwe

Kutheni iibhetri zilahlekelwa ngumthamo wazo?

Ibhetri yakho ilahlekelwa ngamandla ngokuhamba kwexesha. Iingxaki ezintathu eziphambili zibangela oku kusilela. Ukuqonda ingxaki nganye kukunceda ubone indlela i-nanographene powder ezisombulula ngayo.

Ukuqhekeka kwe-Electrode kunye noxinzelelo lweMechanical

Ukutshaja nokukhupha itshaja ngokuphindaphindiweyo kubangela ukuba ii-electrode zebhetri yakho zidumbe kwaye zinciphe. Olu xinzelelo loomatshini lukhokelela ekuqhekekeni. Inkqubo ilandela ulandelelwano olucacileyo:

1. Ii-ion zeLithium zingena kwi-host material ngexesha lokutshaja. Oku kutshintsha iiparameter ze-lattice kunye nomthamo.
2. Amanqanaba okutshaja akhawulezayo adala ii-gradients zoxinzelelo. Umphezulu wanda ngaphezu kwangaphakathi.
3. Uxinzelelo oluhlala kwindawo ethile luyanda. Xa ludlula amandla okuqhekeka kwento, kuvela imifantu.
4. Ukuhamba ngebhayisikile kuyawandisa la maqhekeza. Amasuntswana ekugqibeleni ayaqhekeka okanye aqhawuke kwiqoqo langoku.

Xa i-silicon alloys kunye ne-lithium ngexesha lokutshaja, idlula kutshintsho lwe-volumetric oludlula i-300%, nto leyo edala uxinzelelo loomatshini olukhokelela ekuqhekekeni kwamasuntswana, ukwahlukana kwe-electrode, kunye nokuwohloka komthamo ngokukhawuleza.

Olu qhekeko luveza iindawo ezintsha. Luyonakalisa nomgangatho okhuselayo ojikelezileyo.

Ukungazinzi koMaleko we-SEI kunye nokusetyenziswa kweLithium

Umaleko we-electrolyte interphase (SEI) oqinileyo uyenzeka kwi-anode ngexesha lokutshaja kokuqala. Ukhusela i-electrolyte ekuboleni ngakumbi. Nangona kunjalo, lo maleko ubuthathaka. Uxinzelelo loomatshini oluvela ekukhuleni kwe-electrode luqhekeka i-SEI. Umphezulu we-anode omtsha uyavezwa. Iifom ze-SEI ezingaphezulu ukuze zigqume. Le nkqubo idla ii-ion ze-lithium ezisebenzayo. Ezi i-ion zibambeka kwi-SEI ngonaphakade. Azisayi kuphinda zijikeleze phakathi kwee-electrodes. Ibhetri yakho ilahlekelwa ngumthamo ongasetyenziswayo.

Kwi-silicon engenanto, ubukhulu be-SEI bukhula bufikelele kwi-100–300 nanometers emva kwemijikelo eli-100. Oku kuqina kuthintela ukuthuthwa kwetshaja. Ikwasebenzisa i-lithium engaphezulu. Isiphumo kukuphela komthamo ngokukhawuleza.

I-Lithium Plating kunye ne-Dendrite Formation

Phantsi kweemeko ezithile, i-lithium metal yakheka kumphezulu we-anode endaweni yokufaka kwizinto ezisetyenziswa yi-host. Le lithium ikhula ibe zizakhiwo ezifana neenaliti ezibizwa ngokuba yi-dendrites. Ii-dendrites zibangela iingxaki ezimbini:

• Zingena kwi-separator kwaye zenze ii-internal short circuits.
• Ziyayiqhekeza i-anode zize zihlukaniswe ngombane. Le lithium ifileyo ayisancedisi kumthamo.

Imisinga yombane ephezulu ibangela iimpembelelo zeekhemikhali ezichaphazela i-electrolyte. Iintanda zenzeka kumanqanaba oxinzelelo angaphantsi kwe-25% yemilinganiselo eqhelekileyo yokusilela koomatshini. Ezi ntanda zivumela ii-dendrites ukuba zikhule ngokukhawuleza. Ibhetri yakho ilahlekelwa ngamandla ayo ngokusisigxina kwaye inokusilela kakhulu.

Indlela iNano Graphene Powder ethintela ngayo iModi nganye yokusilela

Ukuqinisa ii-Electrodes ngoomatshini

Umgubo we-nanographene usombulula ingxaki yokuqhekeka kwe-electrode. Ulwakhiwo lwayo olunemilinganiselo emibini lusebenza njenge-scaffold ye-molecular. Le scaffold ibamba izinto ze-electrode kunye ngexesha lokutshaja nokukhupha i-electrode. Xa i-electrode idumba, amaphepha e-graphene asasaza uxinzelelo loomatshini ngokulinganayo. Athintela ukuqhekeka nokukhula kwe-electrode.

Ufumana i-electrode enamandla ngakumbi. Inethiwekhi ye-graphene igcina isakhiwo sayo nasemva kwamakhulu emijikelo. Olu qina lugcina amasuntswana edibene nomqokeleli wangoku. Lukwathintela i-electrode ukuba ingadibani. Ibhetri yakho ihlala iqinile kwaye iyaqhubeka nokubonelela ngamandla apheleleyo.

Ukuphuculwa kokuqhuba kunye nokwakheka kwe-SEI efanayo

Ukuqhuba kwebhetri kubaluleke kakhulu ekusebenzeni kwebhetri. Umgubo weNanographene ngumqhubi onamandla wamandla ombane. Unendawo enkulu yomphezulu. Xa uwufaka kwi-electrodes zebhetri, uphucula ukuqhubela kwebhetri ngaphandle kokufuna isixa esiphezulu sekhabhoni. Ungangenisa i-graphene kwi-anode ukuze usebenzise ukuqhubela kwayo kunye nendawo enkulu yomphezulu ukuze ulungelelanise imo kunye nokuphucula ukusebenza.

Nantsi indlela esebenza ngayo:

• Ukwakhiwa kwenethiwekhi eqhubayo: Kwiinkqubo ze-electrode ezomileyo, i-graphene isebenza njengenethiwekhi ekhaphukhaphu, esebenza kakuhle. Iphucula umthamo, ukusebenza kwe-C-rate, kunye nokugcinwa komthamo.
• Ukutshintshwa kwekhabhoni emnyama: Ungayidibanisa i-graphene ngokuthe ngqo kwimveliso esekwe kwi-slurry. Ithatha indawo okanye inciphise umnyama wekhabhoni. Oku kuphucula umthamo, amandla e-C-rate, kunye nokugcinwa komthamo ngaphandle kokuphazamisa iinkqubo ezikhoyo.
• Ukwaleka kwezinto ezisebenzayo: Ukugquma izinto ezisebenzayo ngegraphene kukhuthaza ukutshaja nokukhupha ngokukhawuleza. Ibonelela ngombane ophezulu. Ikwasebenza njengomqobo ozinzileyo ngokweekhemikhali. Lo mqobo uthintela ukwakheka kwe-SEI engafunekiyo. Ixhasa ubomi bebhetri obude.

Inethiwekhi yegraphene efanayo inceda umaleko we-SEI ukuba ulingane. Umaleko we-SEI ozinzileyo usebenzisa i-lithium encinci. Ikwakhusela i-electrolyte ekuboleni ngakumbi. Ibhetri yakho igcina amandla angakumbi ngokuhamba kwexesha.

Ukuncitshiswa kweLithium Dendrites

Ii-lithium dendrites ziyingozi enkulu kukhuseleko lwebhetri kunye nobomi bayo. Umgubo we-nanographene udala umqobo obonakalayo othintela ukukhula kwe-dendrite. Amaphepha e-graphene enza inethiwekhi exineneyo, eqhubayo kumphezulu we-anode. Le nethwekhi ithintela ukwakheka kwezakhiwo ze-lithium ezifana nenaliti.

Inethiwekhi yegraphene ikwasasaza intsimi yombane ngokulinganayo. Le ntsimi ifanayo ithintela ukuxinana kwe-lithium ions kwindawo ethile. Ngaphandle kwezi ndawo zishushu, ii-dendrites azinakuqala ukukhula. Ufumana ibhetri ekhuselekileyo enobomi obude bomjikelo.

Ukuze ufumane umgangatho webhetri, cingaI-Nano Graphene Powder CAS 1034343-98-0 Ixabiso leFactory kwiBattery GradeLe mveliso inika ubunyulu kunye nokusebenza okufunekayo kwiifowuni ezithembekileyo.

Ukusebenza kunye noHlanganiso lweHlabathi lokwenyani

Usenokuzibuza ukuba i-nanographene powder isebenza njani ngaphandle kwelebhu. Ukwenziwa kwebhetri yehlabathi lokwenyani kuzisa imingeni eyahlukileyo. Ukuqonda le mingeni kukunceda uvavanye ukuba le nto iyahambelana neemfuno zakho zemveliso.

Ukuthelekiswa neeZongezo zeKhabhoni zeMveli

Iibhetri zemveli zixhomekeke kumnyama wekhabhoni okanye igrafiti njengezongezo zokuhambisa umbane. Ezi zinto ziyasebenza kodwa zinemida. Umnyama wekhabhoni ufuna umthwalo ophezulu ukuze kufezekiswe ukuhanjiswa kombane okwaneleyo. Ezi zinto zongezelelweyo zithatha indawo enokubamba izinto ezisebenzayo. Igrafiti inika ukuhanjiswa kombane okungcono kodwa ayinazo iimpawu zokuqinisa umbane zegrafene.

Umgubo we-nanographene udlula zombini iindlela ngeendlela ezahlukeneyo. Ulwakhiwo lwayo olunemilinganiselo emibini lubonelela ngendawo enkulu yomphezulu ngeyunithi nganye yobunzima. Udinga i-graphene encinci ukuze ufikelele kwinqanaba elifanayo lokuqhuba. Olu buchule buguqulela kwindawo engakumbi yezinto ezisebenzayo kwi-electrode yakho. Umxholo ophezulu wezinto ezisebenzayo uthetha uxinano olukhulu lwamandla kwibhetri yakho.

Iimpawu zoomatshini nazo zahlukile kakhulu. Amasuntswana amnyama ekhabhoni awaqinisi isakhiwo se-electrode. Azalisa nje izikhewu phakathi kwamasuntswana asebenzayo. Nangona kunjalo, amaphepha e-graphene ayajikeleza aze adibanise amasuntswana. Le nethwekhi ibamba yonke into kunye ngexesha lemijikelo yokutshaja nokukhupha. I-electrode yakho igcina ingqibelelo yayo ixesha elide kakhulu kunezongezo zemveli.

Le mingeni yokudibanisa ibalulekile kwisigqibo sakho. Kufuneka ulinganise iingenelo zokusebenza xa uzithelekisa nohlengahlengiso lokuvelisa. Abavelisi abaninzi bafumanisa ukuba urhwebo lufanelekile. Ukuphuculwa kokugcinwa kwamandla kuqinisekisa utshintsho lokuqala kwimveliso.

I-Nano Graphene Powder CAS 1034343-98-0 Ixabiso leFactory kwiBattery Grade

Ufuna umthombo othembekileyo weizixhobo ezikumgangatho webhetri. I-Nano Graphene Powder CAS 1034343-98-0 Ixabiso leFektri leBattery Grade libonelela ngokuhambelana okufunekayo kwimveliso yakho. Le mveliso inika ubunyulu obuphezulu kunye nomxholo wekhabhoni odlula i-97%. Ubungakanani bezinto ezilawulwayo buqinisekisa ukusasazeka okufanayo kwi-electrode slurry yakho.

Iinkcukacha zixhasa ukuhlanganiswa okungenamthungo. Uxinano lwetaphu ngaphantsi kwe-0.1 g/cm³ kuthetha ukuba umgubo usasazeka ngokulula. Iindawo zomphezulu ze-BET ziqala kwi-180-280 m²/g kwiimakethi eziqhelekileyo. Iinketho zomphezulu ophezulu zifikelela kwi-720-900 m²/g kwiimakethi ezifuna indawo ephezulu yokudibana. Ungakhetha imakethi ehambelana nekhemistri yebhetri yakho ethile.

Umthamo womswakama uhlala ungaphantsi kwe-1.0% kwi-105°C kangangeeyure ezimbini. Eli nqanaba liphantsi lomswakama lithintela iimpendulo ezingafunekiyo ngexesha lokulungiswa kwe-electrode. Umgubo usasazeka ngqo kwizisombululo zamanzi okanye kwi-solvents. Ungasebenzisa i-ultrasound ukufezekisa ukusasazwa okufanayo nokuzinzileyo. Oku kuguquguquka kwenza lula inkqubo yakho yokuvelisa.

I-Nano Graphene Powder CAS 1034343-98-0 Ixabiso leFektri kwiBattery Grade liza ngeendlela zokupakisha ukusuka kwi-10 grams ukuya kwi-1 kilogram. Ungalinganisa ukusuka kuvavanyo lophando ukuya kwimveliso yovavanyo ngaphandle kokutshintsha ababoneleli. Ulwakhiwo lwamaxabiso efektri lwenza ukubala iindleko kube lula kwinkqubo yakho yohlahlo-lwabiwo mali.

Izifundo zeTyala: Izithuthi zoMbane kunye nee-Elektroniki eziThuthwayo

Iibhetri zezithuthi zombane zijongene neemeko ezinzima. Ukutshaja ngokukhawuleza kuvelisa ubushushu kunye noxinzelelo loomatshini. Umgubo we-nanographene ujongana nemingeni yomibini ngempumelelo. Umenzi omnye we-EV ufake i-graphene kwi-anode yakhe elawula i-silicon. Inethiwekhi ye-graphene yayilungiselela ukwanda kwevolumu yama-300% eenxalenye ze-silicon. Emva kwemijikelo yokutshaja engama-500, ibhetri igcine i-87% yamandla ayo okuqala. Izongezo zekhabhoni zemveli kwisicelo esifanayo zigcine i-62% kuphela.

Ukusebenza kokutshaja ngokukhawuleza nako kuphucukile. Inethiwekhi yokuqhuba i-graphene yehlise ukumelana kwangaphakathi ngama-40%. Oku kunciphisa kuvumele amazinga aphezulu okutshaja ngaphandle kokuvelisa ubushushu obugqithisileyo. Abaqhubi banokutshaja izithuthi zabo ngemizuzu eli-15 endaweni yemizuzu engama-45. Ibhetri igcine amaqondo obushushu asebenzayo akhuselekileyo kuyo yonke le nkqubo.

Izixhobo ze-elektroniki eziphathekayo zineemfuno ezahlukeneyo. Ibhetri yefowuni yakho kufuneka ihlale amakhulu emijikelo kwindawo encinci. Ukunqongophala kwendawo kuthetha ukuba i-millimeter nganye ibalwa. Ukusebenza kakuhle kweGraphene njengesongezelelo sokuhambisa umoya kukhulula ivolumu yezinto ezisebenzayo. Omnye umenzi weelaptop wonyuse umthamo webhetri yakhe nge-18% ngokutshintshela kwi-carbon black ukuya kwi-graphene.

Iingenelo zozinzo lwe-SEI layer zibaluleke ngokulinganayo kwizixhobo eziphathwayo. Ezi zixhobo zihlala zingasetyenziswa ixesha elide. Iilayer ze-SEI ezingazinzanga ziyawohloka nokuba isixhobo sivaliwe. Ii-electrode eziqiniswe nge-graphene zigcina ukuthembeka kwazo kwe-SEI ngexesha lokugcina. Abasebenzisi baxela ukulahleka komthamo omncinci ngexesha lokugcina isixhobo ixesha elide.

Itekhnoloji enxitywayo imele enye indlela ekhulayo yokusebenzisa. Ezi zixhobo zifuna iibhetri eziguquguqukayo ezigoba kunye nomzimba womntu. Ukuguquguquka koomatshini beGraphene kuyenza ilungele le njongo. Inethiwekhi yegraphene igcina ukuhanjiswa kwamandla nangona ibhetri igoba amaxesha amaninzi. Izongezo zekhabhoni zemveli ziyaqhekeka xa zigoba ngokuphindaphindiweyo, nto leyo ebangela ukungasebenzi kwebhetri ngequbuliso.

Ubungqina obuvela kwezi zifundo zibonisa isigqibo esicacileyo. Umgubo we-nanographene uzisa uphuculo olulinganisekayo kuzo zonke izicelo ezahlukeneyo. Nokuba wenza iibhetri ze-EV okanye izixhobo ze-elektroniki ezincinci, le nto iphucula ukusebenza kwemveliso yakho. Kukho imingeni yokudibanisa, kodwa inzuzo yokusebenza iyawuthethelela loo mzamo.

I-Nano graphene powder ilwa nazo zonke ezi zintathu izixhobo zokubulala amandla: uxinzelelo loomatshini, ukungazinzi kwe-SEI, kunye ne-lithium plating. Ufumana inethiwekhi eqhubayo ezinzileyo egcina amandla amakhulu emijikelo. Le nto imele utshintsho olusisiseko kuyilo lwebhetri, hayi utshintsho oluncinci. Ngeendlela ezinokulinganiswa ezifana neNano Graphene Powder CAS 1034343-98-0 Ixabiso leFactory kwiBattery Grade, ukwamkelwa kukhula ngokukhawuleza. Iibhetri zesizukulwana esilandelayo ziya kubandakanya i-graphene njengenxalenye eqhelekileyo.

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