Indlela Amabhethri Asetshenziswe Kabusha Asebenza Ngayo
Ukuqhubekela phambili kwamandla ahlanzekile kubone ukwanda okusheshayo kokusetshenziswa kwamabhethri—kusukela kumafoni aphathwayo nama-laptop kuya ezimotweni zikagesi kanye nokugcinwa kwamandla okukhulu. Kodwa naphezu kwezinzuzo zawo, amabhethri nawo adala izinselele zemvelo: izinto zokusetshenziswa ezilinganiselwe, ukukhishwa kwegesi okuvela ezimayini, kanye nengozi yemfucuza eyingozi uma ilahlwa ngendlela engafanele. Yilapho umqondo wamabhethri asetshenziswe kabusha uqala khona ukusebenza. Amabhethri asetshenziswe kabusha awawona nje amabhethri “asetshenzisiwe”, kodwa kunalokho ayingxenye yesistimu eyindilinga ebuyisela izinto ezibalulekile eketangeni lokuhlinzeka. Ngakho-ke, amabhethri asetshenziswe kabusha asebenza kanjani ngempela?
Kuyini Ibhethri Eliphinde Lasetshenziswa?
Igama elithi “ibhethri eliphinde lasetshenziswa” livame ukubhekisela ezintweni ezimbili. Okokuqala, amabhethri enziwe ngezinto eziphinde zasetshenziswa, njenge-nickel, i-cobalt, i-lithium, i-manganese, i-graphite, ithusi, ne-aluminium atholakale kumabhethri asetshenzisiwe. Okwesibili, amabhethri aklanyelwe ukuphinda asetshenziswe kalula, njengokusebenzisa imiklamo ye-modular, izintambo ezisuswa kalula, kanye namalebula amakhemikhali acacile. Emisebenzini yezimboni, ukugxila okuyinhloko ekudaleni iluphu evaliwe: amabhethri asetshenzisiwe ayacutshungulwa, izinto zawo ziphinde zasetshenziswa, bese esetshenziswa kabusha ukwenza amaseli amasha ebhethri.
Kungani Amabhethri Kudingeka Aphinde Asetshenziswe?
Amabhethri—ikakhulukazi amabhethri e-lithium-ion—aqukethe kokubili izinto eziwusizo kanye nezinto ezingaba yingozi. Ukuphinda kusetshenziswe kubalulekile ngoba:
1. Nciphisa ukumba: Ukubuyiswa kwe-nickel, i-cobalt, ne-lithium kunganciphisa isidingo sokukhishwa okusha.
2. Nciphisa ukunyathela kwekhabhoni: Ukukhiqizwa kwezinto ezingezona ezisetshenziswa ekumbeni ngokuvamile kudinga amandla amaningi.
3. Vimbela ukungcola: Ama-electrolyte kanye namakhemikhali athile angaba yingozi uma evuza enhlabathini noma emanzini.
4. Ukuphepha: Amabhethri asetshenzisiwe asengagcina amandla futhi asengozini yokunqamuka kokujikeleza noma yokubamba umlilo uma engaphathwanga kahle.
5. Ukuphepha kokuphakelwa: Amazwe noma izimboni zinganciphisa ukuthembela kwazo ezintweni zokusetshenziswa ezingenisiwe.
Ngamanye amazwi, amabhethri asetshenziswe kabusha “asebenza” njengomthombo wezinto ezintsha, hhayi nje imfucuza.
Isigaba 1: Ukuqoqwa Nokuhlelwa
Inqubo iqala ngokuqoqwa kwamabhethri asetshenzisiwe ngokusebenzisa izikhungo zokuvuselela kabusha, izinhlelo zokuthatha izinto ezisetshenzisiwe, izitolo zokulungisa izimoto zikagesi, noma izikhungo zokuphatha imfucuza kagesi. Uma eseqoqwe, amabhethri kumele ahlungwe, njengoba kungewona wonke amabhethri adalwe ngokulinganayo. Afika ngamakhemikhali ahlukahlukene: i-LFP (i-lithium iron phosphate), i-NMC (i-nickel manganese cobalt), i-NCA, i-LCO, namanye. Ukuhlunga kubalulekile ngoba uhlobo ngalunye ludinga isu lokubuyisa elihlukile futhi lunamanani ahlukene ezinto ezibonakalayo.
Kulesi sigaba, isikhungo sivame ukuhlola:
– Uhlobo lwebhethri (i-cylindrical, isikhwama, i-prismatic, imodyuli yemoto)
– Isimo somzimba (esonakele, evuvukele, eshile)
– Isimo sokukhokhiswa kwezokuphepha
– Ulwazi lwelebula noma idatha ye-BMS (Uhlelo Lokuphatha Ibhethri) ebhethrini lemoto
Isinyathelo 2: Ukwenza Ibhethri Liphephe (Ukukhipha Nokuzinzisa)
Ngaphambi kokuba ahlukaniswe, amabhethri avame ukudlula enkambisweni yokukhipha ukuze kuncishiswe ingozi yama-short circuits kanye nemililo. Kumabhethri ezimoto zikagesi, amamojula noma amaphakethe angaba nama-voltage aphezulu, adinga izinqubo zokuphepha ezikhethekile kanye nemishini.
Ngemva kwalokho, kwenziwa ukuzinza, isibonelo kusetshenziswa indawo engasebenzi kahle, izindlela zokupholisa, noma zokuphatha ezivimbela i-electrolyte ukuthi ingasabelani nomoya. Umgomo oyinhloko ukuqinisekisa ukuthi ibhethri liphephile ukuliqaqa kanye nokulicubungula ngomshini.
Isigaba 3: Ukudilizwa
Ukuqaqa kungenziwa ngesandla, ngokuzenzakalelayo kancane, noma ngokuzenzakalelayo. Kumabhethri emoto kagesi, iphakethe liyavulwa ukuze lihlukaniswe:
– Ibhokisi kanye nesakhiwo (insimbi, i-aluminium)
– Izintambo kanye nezibha zamabhasi (ithusi/i-aluminium)
- Uhlelo lokupholisa kanye nezingxenye ze-elekthronikhi
- Amamojula namaseli
Ukuhlukaniswa okufanele kuthuthukisa ukusebenza kahle kokubuyisa izinto futhi kunciphisa ukungcoliswa okuhlukahlukene. Kodwa-ke, ukuhlukaniswa nakho kuyinselele ngoba imiklamo yebhethri iyahluka phakathi kwabakhiqizi futhi ivame ukusebenzisa izinamathiselo noma ama-weld okunzima ukuwasusa.
Isigaba 4: Ukucutshungulwa Nokukhiqizwa Kwemishini “kwe-Black Mass”
Ngemva kokuba amaseli ebhethri esephathwe, isinyathelo esilandelayo ukucubungula ngomshini okufana nalokhu:
– Ukusikwa (ukunqunywa) ngaphansi kwezimo ezilawulwayo
- Ukusikwa kanye nokuhlukaniswa kosayizi wezinhlayiya
– Ukuhlukaniswa kwamagnetic kuya kwensimbi ehlukene
- Ukuhlukaniswa komoya ukuze kuhlukaniswe izingxenyana zokukhanya
- Ukuhlukaniswa kobuningi bethusi ne-aluminium
Umkhiqizo oyinhloko walesi sigaba yi-black mass, ingxube yempuphu ecebile ngezinto ezisebenzayo ze-cathode/anode. I-black mass ngokuvamile iqukethe i-lithium, i-nickel, i-cobalt, i-manganese, i-graphite, kanye ne-residual electrolyte kanye ne-binder. Lena "imayini" eyinhloko ekusetshenzisweni kabusha kwebhethri yesimanje.
Isigaba 5: Ukubuyiselwa Kwezinto Ezibalulekile (i-Hydrometallurgy kanye ne-Pyrometallurgy)
Yilapho-ke ingqikithi "yendlela amabhethri asetshenziswe kabusha asebenza ngayo" iqala ukusebenza: amabhethri asetshenzisiwe awasetshenziswa kabusha nje kuphela, kodwa ahlukaniswa abe izinto zokusetshenziswa.
1) I-Pyrometallurgy (Inqubo Yokushisa)
Le ndlela isebenzisa amazinga okushisa aphezulu ukuncibilikisa nokuhlukanisa izinsimbi. Izinzuzo zayo:
- Ibekezelela kakhulu izingxube zamakhemikhali ebhethri
– Le nqubo ilula kakhulu esigabeni sokuqala sokuhlukana.
Kodwa kunezinkinga:
– Ukusetshenziswa kwamandla aphezulu
– Ezinye izakhi (njenge-lithium ne-aluminium) zingase zigcine zingcolile noma zidinge izinyathelo ezengeziwe ukuze ziphinde zisebenze.
– Ukukhishwa komoya okungenzeka kumele kulawulwe ngokuqinile
I-pyrometallurgy ivame ukukhiqiza ama-alloy ensimbi (isib. aqukethe i-nickel, i-cobalt, ithusi) aphinde acwengisiswe.
2) I-Hydrometallurgy (Inqubo Yamakhemikhali Amanzi)
Le ndlela incibilikisa inqwaba emnyama isebenzisa isisombululo esithile (i-asidi noma enye i-leaching agent), bese ihlukanisa insimbi ngalezi zinto ezilandelayo:
- imvula ekhethiwe,
- ukukhipha i-solvent,
- i-ion exchanger,
– ukwakheka kwekristalu.
Izinzuzo:
– Amanani aphezulu okubuyisa i-nickel/cobalt/manganese futhi angalungiselelwa i-lithium
– Ukuhlanzeka komkhiqizo kungaba phezulu kakhulu, kufaneleke ezintweni ezintsha ze-cathode
Ububi:
– Ikhiqiza imfucuza yoketshezi okumele icutshungulwe
- Kudinga ukulawulwa kwenqubo ngokucophelela
Ezikhungweni eziningi zesimanje, ukucubungula ngomshini + i-hydrometallurgy sekuba yinhlanganisela ethandwayo ngenxa yokusebenza kwayo kahle.
3) Ukuvuselela Okuqondile
Le ndlela izama ukubuyisa izinto ze-cathode ezisebenzayo ngaphandle kokuzihlukanisa ngokuphelele zibe yizakhi zazo eziyisisekelo. Isibonelo, ama-cathode "aphelele" alungiswa kabusha (aphinde alungiswe) ukuze asetshenziswe futhi. Uma ephumelela ngezinga elikhulu, ukuphinda kusetshenziswe ngqo kungenza okulandelayo:
- londoloza amandla,
- nciphisa isigaba sokucwengisisa,
– gcina inani lezinto ezisebenzayo.
Kodwa-ke, le ndlela ibucayi kakhulu ekungcoleni nasekushintsheni kwamakhemikhali, ngakho-ke ukusetshenziswa kwayo kusathuthuka.
Isigaba 6: Ukuba Izinto Ezintsha Zokusetshenziswa Kwebhethri
Ngemva kokuba insimbi isitholiwe, imboni ikhiqiza imikhiqizo ephakathi efana nalokhu:
– i-nickel sulfate, i-cobalt sulfate, i-manganese sulfate (yezinto ezibangela i-cathode),
- i-lithium carbonate noma i-lithium hydroxide,
– ithusi elimsulwa kanye ne-aluminium,
– i-graphite ecwengisisiwe (kwezinye izinqubo).
Lokhu okubalulekile bese kungena futhi ochungechungeni lokukhiqiza: kwenziwa kube ama-precursor, ama-cathode asebenzayo, ama-anode, bese kuba amaseli amasha ebhethri. Kulapha lapho "amabhethri asetshenziswe kabusha" esebenza khona ngempela njengomthombo - kunciphisa ukuthembela ekumbeni nasekuvaleni iluphu yezinto ezidingekayo.
Iyini Indima "Yempilo Yesibili" ohlelweni Lokusebenzisa Kabusha Izinto Eziphilayo?
Ngaphambi kokuba kusetshenziswe kabusha, amanye amabhethri—ikakhulukazi lawo avela ezimotweni zikagesi—angangena esigabeni sesibili sokuphila. Lokhu kusho ukuthi amabhethri anesisindo esinciphile emotweni (ake sithi, asele ku-70–80%) angasetshenziswa ezinhlelweni zokusebenza ezingadingi ukusebenza okuphezulu, njenge:
- isitoreji samandla ekhaya,
- amandla okusekelayo,
- indawo yokugcina amandla yamaphaneli elanga,
- abalinganisi bomthwalo embonini.
Ukuphila kwesibili kwandisa isikhathi sokuphila kwebhethri, kubambezele ukuphinda kusetshenziswe, futhi kwandisa inani lalo lezomnotho. Kodwa-ke, ekugcineni, ibhethri lizoqhubeka lisetshenziswe kabusha.
Izinselele Eziyinhloko Zokusebenzisa Kabusha Amabhethri
Nakuba kuthembisa, ukuvuselelwa kwamabhethri kubhekene nezinselele eziningana:
– Umklamo ongalingani: kunzima ukuwuhlukanisa nokuyihlela.
– Izingozi zokuphepha: amabhethri alimele angabangela imililo.
– Umnotho wezinqubo: inani le-cobalt liyehla kwezinye izindawo ezintsha zamakhemikhali (isb. i-LFP), ngakho-ke amamodeli ebhizinisi kumele azivumelanise nezimo.
– Isikali kanye nokuthutha: kudinga uhlelo lokuqoqa oluhlelekile kanye nemithethonqubo esekelayo.
– Ubumsulwa bomkhiqizo: ukuze uphinde ufake ibhethri, izinto kumele zihlangabezane nezindinganiso eziphakeme.
Isixazululo sihilela ukusungula izinto ezintsha, amazinga emboni, ukudiliza okuzenzakalelayo, kanye nenqubomgomo yomthwalo wemfanelo womkhiqizi owandisiwe.
Isiphetho
Amabhethri asetshenziswe kabusha asebenza ngenqubo ehlelekile: ayaqoqwa, enziwe aphephile, ahlakazwe, achotshozwe abe yi-black mass, bese izinto zitholwa ngezindlela zokushisa, zamakhemikhali ezimanzi, noma zokuvuselela ngqo. Umphumela wokugcina awugcini nje ngokunciphisa imfucuza kodwa izinto ezintsha zokusetshenziswa zokukhiqiza amabhethri esizukulwane esilandelayo. Ngohlelo lokuvuselela kabusha oluthuthukisiwe kahle, amabhethri angaba yingxenye yomnotho ojikelezayo—okunciphisa umthelela emvelweni ngenkathi kukhulisa ukuqina kokunikezwa kwezinto ezibalulekile esikhathini esizayo samandla.
Uma ufisa, ngingahlela lesi sihloko ukuze sivumelane nezilaleli ezithile eziqondiwe (abafundi, okuvamile, obuchwepheshe), ngifake idatha yezibalo, noma ngifake uhlu lwezincwadi kanye nemithombo ethembekile.
