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Ukuqala kokuqhuma kwebhethri le-lithium le-NMC

Manje sekungu-2020. Ngokukhuphuka okuqhubekayo kwamabhethri e-lithium we-ternary, ubuchwepheshe bamabhethri e-lithium we-ternary manje aqhubeka futhi ethuthuka. Izinto zokwakhiwa kwe-Ternary ezinamandla amakhulu kakhulu zithatha indawo ye-iron phosphate kancane kancane ngokuzinza okungcono. lithium ibhethri. Yize impahla ye-ternary iletha amandla aphezulu ebhethri ye-ternary lithium, ukuzinza kwayo sekuyinselelo enkulu. Endaweni enezinga lokushisa eleqile, ibhethri lizoqhuma, futhi ezimweni ezinzima Kuzoze kube nokuqhuma. Ingabe amathuba okuqhuma kwebhethri ye-lithium ye-ternary aphezulu kakhulu? Namuhla sizobheka ukuthi kungenzeka yini ukuqhuma kwebhethri ye-lithium yebhethri.

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Ibhethri le-Ternary lithium

Amathuba okuqhuma kwebhethri ye-lithium ye-ternary

Amathuba aphezulu kakhulu. Lapho ibhethri selikhokhiswe ngokweqile, ukukhishwa ngokweqile kwe-lithium ku-electrode enhle kuzoshintsha ukwakheka kwe-electrode enhle, futhi i-lithium eningi kakhulu ngeke ikwazi ukufakwa ku-electrode engeyinhle, futhi izobangela kalula i-lithium ebusweni ye-electrode engemihle, futhi lapho i-voltage ifinyelela Ngaphezu kuka-4.5V, i-electrolyte izobola ukukhiqiza inani elikhulu legesi. Konke okungenhla kungadala ukuqhuma. Uphawu ngaphambi kokuqhuma ukushisa nokuguquguquka kokushaja, futhi imiphumela engathandeki yisifunda esifushane, isifunda esivulekile, ngisho nokuqhuma.

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Yikuphi ukuqhuma okunamandla kakhulu kwebhethri ye-lithium yebhethri noma ibhethri le-lithium le-18650?

Ngemuva kwakho konke, ibhethri le-lithium ibhethri nje, hhayi ibhomu. Noma ukuphepha kwe-18650 lithium battery kuyimbi kakhulu, ukusebenza kwayo kokukhipha kuhamba kancane. Okungenani, isha ngamandla ngemuva kokuqhuma. Lokho okubizwa ngokuthi “ukuqhuma” kumane kungukunyakaza okuncane lapho kuqhuma. Isiphetho sokugcina ngukuthi noma ngabe amabhethri e-lithium angama-2,000 3,000 kuya ku-18650 ahlanganiswe ndawonye, ​​amandla wokuqhuma asenqunyelwe, futhi ngokuyisisekelo ngeke abulawe. Ngakho-ke, empilweni yansuku zonke, kufanele uqaphele lapho usebenzisa amadivayisi anamabhethri e-lithium ayi-XNUMX.

Inqubo yokulungiselela amabhethri e-lithium ivuthwe kakhulu, ngaphezu kokusebenza okuthuthuke kakhulu, ukuphepha kwayo nakho kuphelele kakhulu. Ukuze uvimbele ukuqhuma kwekesi lensimbi evaliwe, kufakwa i-valve yokuphepha ngaphezulu kwebhethri le-18650. Lokhu ukucushwa okujwayelekile kwebhethri ngalinye le-18650 kanye nesithiyo esibaluleke kakhulu sokuqhuma ukuqhuma. Lapho ingcindezi yangaphakathi yebhethri iphakeme kakhulu, i-valve yokuphepha ngaphezulu kwebhethri ivula umsebenzi wokukhipha nokucindezela ukucindezela ukuqhuma.

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Ukukhipha okujulile ibhethri le-lithium-ion

Kodwa-ke, amabhethri e-lithium we-ternary asenezinkinga eziningi maqondana nokuphepha. Engozini yemoto, umthelela wamandla angaphandle uzolimaza i-diaphragm yebhethri futhi ubangele isifunda esifushane. Ukushisa okukhishwe ngesikhathi sesifunda esifushane kuzokwenza ukuthi ibhethri likhiqize ukushisa futhi kwandise izinga lokushisa kwebhethri libe ngaphezu kwe-300 ° C. Ukuzinza okushisayo kwe-ternary lithium battery akukubi, futhi ama-molecule e-oxygen azobola lapho ephethwe ngaphansi kuka-300 ℃. Kuzoba kancane ngemuva kokuhlangana nezinto ezishisa i-electrolyte nekhabhoni. Ukushisa okukhiqizwayo kubhebhethekisa ukubola kwe-electrode enhle. Esikhathini esifushane kakhulu Izoshisa ngaphakathi. Uma kuqhathaniswa, elinye ibhethri le-lithium iron phosphate elisetshenziswa kakhulu lingagcinwa ku-700-800 ° C ngaphandle kokubola kwama-molecule e-oxygen futhi liphephe kakhulu.

Ngemininingwane eminingi Ungakhuphula kanjani impilo yebhethri le-lithium polymer sicela uhlole izindatshana zethu zakamuva.