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Ukuqala kokuqhuma kwebhetri ye-NMC

Ngoku kungunyaka ka-2020. Ngokunyuka okuqhubekayo kweebhetri ze-lithium zebhetri, itekhnoloji yeeternary iibhetri ze-ternary ngoku ihlala ikhula kwaye iqhubela phambili. Izinto ze-Ternary ezinamandla aphezulu oxinizelelo zithatha indawo yentsimbi i-phosphate ngozinzo olungcono. ibhetri yelithium. Nangona izinto ze-ternary zizisa uxinizelelo oluphezulu lwamandla kwibhetri ye-lithium ye-ternary, ukuzinza kwayo kuye kwaba ngumceli mngeni omkhulu. Kwimeko enobushushu obugqithisileyo, ibhetri iya kuba bumdaka, kwaye kwiimeko ezibi kuya kubakho ukuqhuma. Ngaba ukubakho kwebhetri ye-lithium yebhetri eqhuma kakhulu? Namhlanje siza kujonga amathuba okuqhuma kwebhetri ye-lithium ye-ternary.

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Ibhetri yeTernary lithium

Ithuba lokuqhuma kwebhetri ye-lithium ye-ternary

Amathuba aphezulu kakhulu. Xa ibhetri igcwalisiwe, ukukhutshwa ngokugqithileyo kwe-lithium kwi-electrode elungileyo kuyakutshintsha ubume be-electrode elungileyo, kwaye i-lithium eninzi kakhulu ayinakukwazi ukufakwa kwi-electrode engalunganga, kwaye iya kuthi ngokulula ibangele i-lithium ngaphezulu ye-electrode engalunganga, kwaye xa umbane ufikelela ngaphezulu kwe-4.5V, i-electrolyte iya kubola ukuvelisa isixa esikhulu segesi. Zonke ezi zinto zingasentla zinokubangela uqhushumbo. Iimpawu ngaphambi kokuqhuma kukufudumeza kunye nokushenxiswa kokutshaja, kwaye iziphumo ezingathandekiyo sisiphaluka esifutshane, isekethe evulekileyo, kunye nokudubula.

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Yeyiphi eyona nto inamandla ngokuqhushumba ibhetri ye-lithium okanye ibhetri ye-lithium eyi-18650?

Emva kwayo yonke loo nto, ibhetri ye-lithium ibhetri nje, hayi ibhombu. Nangona ukhuseleko lwebhetri ye-lithium ye-18650 yeyona nto imbi, ukusebenza kwayo kokukhupha kuhamba kancinci. Ubuninzi, buvutha ngamandla emva kokuqhuma. Oko kubizwa ngokuba “kukuqhushumba” kukuhamba nje okuncinci xa kuqhuma. Isiphetho sokugqibela kukuba nokuba i-2,000 ukuya kwi-3,000 yeebhetri ze-lithium zidityaniswe kunye, amandla wokuqhushumba asasikelwe umda, kwaye ayisayi kubulawa. Ke ngoko kubomi bemihla ngemihla, kufuneka ulumke xa usebenzisa izixhobo ezineebhetri ze-lithium eziyi-18650.

Inkqubo yokulungiselela iibhetri ze-lithium sele ikhule kakhulu, ukongeza ekusebenzeni okuphuculweyo, ukhuseleko lwayo nalo lufezeke kakhulu. Ukuthintela ukuqhuma kwesinyithi esitywiniweyo, ifakelwe ivalve yokhuseleko ngaphezulu kwebhetri ye-18650. Olu luqwalaselo oluqhelekileyo lwebhetri nganye ye-18650 kunye nesona sithintelo sibalulekileyo sokudubula. Xa uxinzelelo lwangaphakathi lwebhetri luphezulu kakhulu, ivelufa yokhuseleko ngaphezulu kwebhetri ivula umsebenzi wokukhupha kunye noxinzelelo lokuthintela ukuqhuma.

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Ukukhupha nzulu ibhetri ye-lithium-ion

Nangona kunjalo, iibhetri ze-lithium ze-ternary ziseneengxaki ezininzi malunga nokhuseleko. Kwingozi yemoto, ifuthe lamandla angaphandle liya konakalisa idaphragm yebhetri kwaye ibangele isekethe emfutshane. Ubushushu obukhutshwe ngexesha lesiphaluka esifutshane buya kubangela ukuba ibhetri ivelise ubushushu kwaye yonyuse ubushushu bebhetri obungaphezulu kwama-300 ° C. Uzinzo olushushu lwebhetri ye-lithium ye-ternary ihlwempuzekile, kwaye iimolekyuli zeoksijini ziya kubola xa zigcinwe ngaphantsi kwe-300 ℃. Kuya kuba kancinci emva kokudibana ne-electrolyte enokutsha kunye nezinto zecarbon zebhetri. Ubushushu buvelise ngakumbi ukuqinisa ukubola kwe-electrode elungileyo. Ngexesha elifutshane kakhulu liza kutsha ngaphakathi. Xa kuthelekiswa, enye ibhetri ye-lithium phosphate ibhetri esetyenziswa kakhulu inokugcinwa kwi-700-800 ° C ngaphandle kokubola kweemolekyuli zeoksijini kwaye ikhuselekile.

Ngolwazi oluthe kratya indlela yokunyusa ubomi bebhetri ye-lithium polymer nceda ujonge amanqaku ethu amva.