Njengamanje, amabhethri e-lithium ion adlale indima ebaluleke kakhulu empilweni yabantu, kodwa kusenezinkinga ezithile kubuchwepheshe bebhethri ye-lithium.Isizathu esiyinhloko ukuthi i-electrolyte esetshenziswa kumabhethri e-lithium i-lithium hexafluorophosphate, ezwela kakhulu kumswakama futhi inokushisa okuphezulu kokusebenza.Imikhiqizo yokungaqini kanye nokubola iyagqwala ezintweni ze-electrode, okuholela ekusebenzeni kabi kokuphepha kwamabhethri e-lithium.Ngesikhathi esifanayo, i-LiPF6 nayo inezinkinga ezifana nokungancibiliki kahle kanye nokusebenza okuphansi ezindaweni zokushisa eziphansi, ezingakwazi ukuhlangabezana nokusetshenziswa kwamandla amabhethri e-lithium.Ngakho-ke, kubaluleke kakhulu ukuthuthukisa usawoti we-electrolyte lithium omusha ngokusebenza okuhle kakhulu.
Kuze kube manje, izikhungo zocwaningo zenze izinhlobonhlobo zamasawoti e-lithium amasha e-electrolyte, abamele kakhulu i-lithium tetrafluoroborate ne-lithium bis-oxalate borate.Phakathi kwazo, i-lithium bis-oxalate borate akulula ukubola ekushiseni okuphezulu, ayizwani nomswakama, inqubo elula yokuhlanganisa, akukho Inezinzuzo zokungcola, ukuqina kwe-electrochemical, iwindi elibanzi, kanye nekhono lokwenza ifilimu enhle ye-SEI ebusweni be-electrode engalungile, kodwa ukuncibilika okuphansi kwe-electrolyte kuzinyibilikisi ze-carbonate ezinomugqa kuholela ekuqhubeni kwayo okuphansi, ikakhulukazi ukusebenza kwayo okuphansi kwezinga lokushisa.Ngemva kocwaningo, kwatholakala ukuthi i-lithium tetrafluoroborate ine-solubility enkulu ku-carbonate solvents ngenxa yobukhulu bayo be-molecular encane, engathuthukisa ngokuphumelelayo ukusebenza okuphansi kwezinga lokushisa kwamabhethri e-lithium, kodwa ayikwazi ukwenza ifilimu ye-SEI ebusweni be-electrode engalungile. .I-electrolyte lithium salt lithium difluorooxalate borate, ngokwezici zayo zesakhiwo, i-lithium difluorooxalate borate ihlanganisa izinzuzo ze-lithium tetrafluoroborate kanye ne-lithium bis-oxalate borate ekwakhiweni nasekusebenzeni, hhayi kuphela kuma-carbonate solvents.Ngasikhathi sinye, inganciphisa i-viscosity ye-electrolyte futhi yandise ukuguquguquka, ngaleyo ndlela ithuthukise ukusebenza okuphansi kwezinga lokushisa kanye nokusebenza kwezinga lamabhethri e-lithium ion.I-lithium difluorooxalate borate ingase futhi yakhe ungqimba lwezakhiwo zesakhiwo endaweni ye-electrode engeyinhle njenge-lithium bisoxalate borate.Ifilimu ye-SEI enhle inkulu.
I-Vinyl sulfate, esinye isithako sikasawoti esingesona i-lithium, futhi iyisengezo esenza ifilimu ye-SEI, engavimbela ukuncipha komthamo wokuqala webhethri, yandise umthamo wokuqala wokukhipha, inciphise ukunwetshwa kwebhethri ngemuva kokubekwa ezingeni lokushisa eliphezulu. , futhi uthuthukise ukusebenza kokushajwa kokushajwa kwebhethri, okungukuthi, inani lemijikelezo..Ngaleyo ndlela kunweba ukukhuthazela okuphezulu kwebhethri nokwelula impilo yesevisi yebhethri.Ngakho-ke, amathuba okuthuthukiswa kwezithasiselo ze-electrolyte athola ukunakwa okwengeziwe, futhi isidingo semakethe siyanda.
Ngokwe-“Industrial Structure Adjustment Guidance Catalog (2019 Edition)”, izengezo ze-electrolyte zale phrojekthi zihambisana nengxenye yokuqala yesigaba sokukhuthaza, i-Article 5 (amandla amasha), iphuzu 16 “ukuthuthukiswa kanye nokusetshenziswa kwamandla amasha eselula. ubuchwepheshe”, Isigaba 11 (imboni yamakhemikhali e-Petrochemical) iphuzu 12 “izinto ezinamathelayo eziguquliwe, ezisekelwe emanzini kanye nezinamatheliso ezintsha ezincibilikayo ezishisayo, izinto ezimunca amanzi ezingangeni emvelweni, izinto zokuhlanza amanzi, i-molecular sieve solid mercury, i-mercury-free kanye nezinye izisusa ezintsha ezisebenzayo nezingangeni imvelo. kanye nezithasiselo, ama-nanomaterials, Ukuthuthukiswa kanye nokukhiqizwa kwezinto ezisebenzayo ze-membrane, ama-reagents ahlanzekile kakhulu futhi ahlanzekile kakhulu, ama-photoresists, amagesi kagesi, izinto ezisezingeni eliphezulu ze-crystal liquid namanye amakhemikhali amasha amahle;Ngokuvumelana nokubuyekezwa nokuhlaziywa kwamadokhumenti enqubomgomo kazwelonke neyendawo yezimboni ezifana “Nesaziso Esimayelana Nemihlahlandlela Yohlu Olubi Lokuthuthukiswa Kwebhande Lomnotho (Sokusebenza Kwesivivinyo)” (Idokhumenti Yehhovisi Lase-Changjiang No. 89), kunqunywa ukuthi le phrojekthi akuyona iphrojekthi yentuthuko ekhawulelwe noma enqatshelwe.
Amandla asetshenziswa lapho iphrojekthi ifinyelela emandleni okukhiqiza ahlanganisa ugesi, isitimu namanzi.Njengamanje, iphrojekthi isebenzisa ubuchwepheshe obuthuthukisiwe bokukhiqiza kanye nemishini, futhi isebenzisa izindlela ezahlukahlukene zokonga amandla.Ngemva kokusetshenziswa, zonke izinkomba zokusetshenziswa kwamandla sezifinyelele izinga eliphezulu embonini efanayo yaseShayina, futhi zihambisana nemininingwane yedizayini yokonga ugesi kazwelonke neyemboni, izindinganiso zokuqapha ukonga amandla kanye nemishini.Izinga lokusebenza kwezomnotho;inqobo nje uma iphrojekthi isebenzisa izinkomba ezihlukahlukene zokonga ugesi, izinkomba zokusetshenziswa kwamandla komkhiqizo kanye nezinyathelo zokonga ugesi ezihlongozwayo kulo mbiko ngesikhathi sokwakha nokukhiqiza, iphrojekthi ingenzeka ngokombono wokusetshenziswa kwamandla okunengqondo.Ngokusekelwe kulokhu, kunqunywa ukuthi iphrojekthi ayibandakanyi ukusetshenziswa kwezinsiza ku-inthanethi.
Isilinganiso somklamo wephrojekthi yilesi: i-lithium difluorooxalate borate 200t/a, lapho i-200t/a lithium tetrafluoroborate isetshenziswa njengempahla eluhlaza yemikhiqizo ye-lithium difluorooxalate borate, ngaphandle komsebenzi wokucubungula ngemuva kokucubungula, kodwa futhi ingakhiqizwa njengomkhiqizo oqediwe. ngokwehlukana ngokwesidingo semakethe.I-Vinyl sulfate ingu-1000t/a.Bheka Ithebula 1.1-1

Ithebula 1.1-1 Uhlu lwezixazululo zomkhiqizo