Kuyini Ukuvala Okushisayo Kwepulasitiki Kwamabhethri e-Lithium-ion?
Ukwehluleka kwamaseli esikhwama kunkambu? Cishe u-60-70% ulandelela emuva ezinkingeni zokuvala. Hhayi i-cathode, hhayi isihlukanisi, ngisho ne-BMS-izendlalelo ezimbili nje zefilimu ezingahlangani kahle. Ukuvalwa okushisayo kuthola mhlawumbe amakhasi amabili ezincwadini eziningi zebhethri, kodwa kubangela izimangalo eziningi zewaranti kunalokho abantu abafuna ukukuvuma.
Ifilimu Eyenza Wonke Umsebenzi
Ifilimu ye-aluminum laminate inemisebenzi emithathu epakishwe endaweni eyodwa. Inayiloni yangaphandle ithatha imihuzuko futhi ivimbe umoya-mpilo. Isendlalelo se-aluminium esimaphakathi simisa umswakama-lesi isithiyo sangempela, njengoba ngisho nenani elincane lomhwamuko lihlangana ne-LiPF6 ukuze likhiqize igesi ye-HF. I-CPP yangaphakathi (i-polypropylene ephonsiwe) iyancibilika ngesikhathi sokuvalwa ukuze kwakhiwe isibopho sangempela.
Kuzwakala kuqondile. Empeleni, ukuthola zonke izendlalelo ezintathu ukuthi zisebenzisane phakathi nomjikelezo wokuvala wesibili wamasekhondi angu-2-3 kuthatha ukulawulwa kwenqubo okwengeziwe kunalokho okulindelwe imisebenzi eminingi lapho kuqala ukusetha ulayini wesikhwama.
I-DNP, i-Showa Denko, kanye no-Youlchon basanikeza iningi lefilimu ye-laminate ye-premium emhlabeni jikelele. Abakhiqizi baseShayina-i-Zijiang, i-Daoming, nabanye abambalwa{2}}bavale igebe phakathi-kwezinhlelo zokusebenza ezisezingeni eliphakathi, nakuba amaseli okuphila{4}omjikelezo-ophezulu asathanda ukucacisa ifilimu yesi-Japanese noma yaseKorea. Ukukhetha kwezinto kuthinta ukuziphatha kokuvala ngaphezu kwalokho okusikiselwa yimininingwane yedatha.
Ukuthi Ukuvalwa Kwezimpawu Kusebenza Kanjani
Imigoqo emibili evuthayo, phezulu nangaphansi, cindezela ifilimu ye-laminate egoqiwe. Izinga lokushisa lihamba kusuka ku-185 kuya ku-225℃endaweni yebha. Kodwa nakhu okungagcizelelwa amamanuwali wemishini: Izinga lokushisa lesendlalelo se-CPP ligcina lingaphansi kuka-10℃ngaphansi kwezinga lokushisa lebha ngoba ukushisa kungena inayiloni ne-aluminium kuqala. I-setpoint engu-215℃isho cishe amadigri angu-205 ekuxhumaneni okubonakalayo kwangempela.
I-Side seal isebenza ngokupholile{1}}i-185℃ijwayelekile njengoba ihlanganisa ifilimu{2}}ne-movie nje. Izigxivizo eziphezulu zidinga i-210-220℃ngoba amathebhu e-electrode abhoboza ephaketheni futhi ifilimu ye-tab sealant yengeza isisindo esishisayo. Leso sealant (i-PP evame ukushintshwa) kufanele sihlangane kanyekanye endaweni yethebhu yensimbi nosendlalelo se-CPP. Izixhumanisi ezintathu ezihlukene, umjikelezo owodwa wokuvala.
Indlela yokuhlanganisa ihlanganisa ukuhlanganisa i-polymer chain. I-CPP ifinyelela kusimo sokugeleza kwe-viscous, amaketanga afuduka esixhumi esibonakalayo ngaphansi kwengcindezi, bese ayathandeka njengoba yonke into iphola. Amajika e-DSC amafilimu amaningi e-laminate abonisa iwindi lokuncibilika phakathi kuka-160℃no-215℃-iziqongo ezimbili ze-endothermic ezimaka imingcele. Ukusebenza phakathi kwalezo ziqongo yikona okuqondiwe.
Lapho Ulayini Wokukhiqiza Uzabalaza
Ukungcoliswa kophawu lwethebhu
amazinga njengemodi yokwehluleka evame kakhulu. Ukugcwaliswa kwe-Electrolyte kwenzeka ngaphambi kokuvalwa kokugcina, futhi noma yiziphi izinsalela endaweni yophawu kubulala amandla ebhondi. Ngisho nomhwamuko we-solvent ungashintsha amandla e-CPP angaphezulu ukuze abangele izinkinga. Ezinye izinsiza zisula izindawo zokuvala nge-IPA; imisebenzi engcono ilawula umswakama futhi isebenzise izindawo ezihlanzekile ezizinikele ngesinyathelo sokugcina sokuvala. Aumphakeli wephakethe lebhethri le-lithiumenokwethenjwa kwenkundla ephezulu kuvame ukuba nemithetho eqinile lapha-okufanele ukubuze ngayo ngesikhathi sokufaneleka.
Ukufana kwezinga lokushisa eduze kwebha yokuvala
kubangela ukwenqatshwa okuningi kunalokho abantu abaningi abakuqaphelayo. Izinto zokushisisa azisabalalisi ngokuphelele kubha yobude. Amabala abandayo anika ukuhlangana okungaphelele; izindawo ezishisayo zibangela ukuminyanisa-lapho i-CPP encibilikisiwe isunduzwa endaweni yophawu, kushiye izindawo ezincane ezibuthakathaka eziqhekeka lapho ukupholisa. Ukulawula{4}}izinga lokushisa lezoni okuningi kuyasiza, kodwa imigqa eminingi isasebenzisa-amabha ezone eyodwa futhi yamukele amanani aphezulu e-scrap.
Khama{0}uphume futhi{1}}uqhekeke kancane
kwenzeka lapho izinga lokushisa noma ingcindezi iphezulu kakhulu. I-polymer encibilikisiwe ayinandawo lapho ingaya khona ngaphandle kwezinhlangothi zendawo yophawu. Ungqimba oluncane lwensalela ludala imifantu yengcindezi ngesikhathi sokupholisa{2}}ngezinye izikhathi kubonakale ngaphansi kokukhulisa, kwesinye isikhathi kungabonakali. Lezi ziba izindlela zokuvuza ngokuhamba kwesikhathi. Amakhanda okuvala anephrofayili anama-ridge kanye namashaneli alawula ukugeleza kokubalulekile kunezingqimba eziyisicaba, nakuba ebiza kakhulu futhi edinga ukubekezelela okuqinile kokusetha.
I-Delamination ye-adhesive yethebhu
ibonisa izinyanga ngemva kokuthunyelwa kwamaseli. Ifilimu eqinile kumathebhu e-electrode kufanele ibophe insimbi-ku{2}}okunamathelayo, okunamathelayo-ku-okunamathelayo (lapho kuhlangana khona izendlalelo), kanye nokunamathela-ku-ku-CPP. Ukushoda kwanoma iyiphi i-interface kusho ukuthi i-electrolyte igcina ixhumekile kuthebhu. Amaseli adlula ukuhlolwa kokuqala kokuvuza, bese ehluleka ensimini lapho ukucwila kancane ekugcineni kubhodloza. Ukuhlolwa kokuguga okusheshisiwe kubamba okunye kwalokhu, kodwa hhayi konke.
Amafilimu Omile vs Thermal Lamination
Indlela ifilimu ye-laminate eyakhiwe ngayo ithinta ukuziphatha kokubeka uphawu.
Amabhondi e-thermal lamination e-CPP ku-aluminium esebenzisa ingcina ye-MPP ngaphansi kokushisa nokucindezela. Inqubo iyasebenza kodwa ukuchayeka ekushiseni kungase kumise ungqimba olunamathelayo. Abanyeibhethri ye-lithium OEMizinhlelo zishintshele kumafilimu omisiwe e-lamination-ezokwelapha okunamathelayo ezingeni lokushisa eliphansi, zihlala zivumelana nezimo, zibamba ukudonsa okujulile kangcono.
Amafilimu-enqubo eyomile ngokuvamile anikeza amawindi okuvala abanzi. Amafilimu enqubo ashisayo-ngesinye isikhathi abonisa{3}}ukuqhekeka kwecala ngesikhathi sokwenza imisebenzi engeke yenzeke ngefilimu eyomile. Akusho ukuthi okushisayo kubi; amaseli amaningi{5}evolumu aphezulu ayisebenzisa ngempumelelo. Kodwa lapho izinkinga zokuvala zivela futhi akukho okunye okuzichazayo, inqubo yokukhiqiza ifilimu kufanele iphenywe.
Imishini Amanothi
Ibha yokuvala engaphezulu ivamise ukusebenza "njengebha ekhanyayo" egoqwe ngetheyiphu ye-PTFE. I-Teflon ivimbela ukunamathela lapho i-polymer incitsha, inikeza ukukhululwa ngemva komjikelezo ngamunye, futhi isiza ngisho nokukhipha ukushisa kancane. Itheyiphu iyaguga futhi idinga ukushintshwa{2}}i-PTFE engcolile noma egugile ibonakala njengezimpawu ezingaphezulu kufilimu evaliwe.
Ibha engezansi ngokuvamile inendawo enephrofayili enesiteshi esimaphakathi, esifakwe irabha ye-silicone. I-silicone ihlinzeka ngokuthobela ukuphatha ukuhluka kogqinsi kusuka ezindaweni zamathebhu. Ngaphandle kwalokho kuthobelana, ukusatshalaliswa kwengcindezi kuhamba ngokungalingani futhi amandla ebhondi ayahluka kubo bonke ububanzi bophawu.
Idizayini ye-asymmetric-phezulu ebushelelezi, ngezansi enephrofayili{1}}inikeza ukucindezelwa okulawulwayo kunokuba nje ibambe ngamandla. Ukusetha kubalulekile lapha; izingxenye ezimbalwa zeshumi zemilimitha ekuqondaneni kwebha kushintsha imiphumela ngokuphawulekayo.
Imibuzo Eveza Ukuvuthwa Kwenqubo
Ngesikhathi sokufaneleka kwabahlinzeki, le mibuzo ivame ukuhlukanisa imisebenzi ebucayi naleyo ezodala ikhanda elibuhlungu lewaranti:
Noma yikuphiumphakeli webhethri we-lithium ngokwezifisoukwenza inqubo yangempela yobunjiniyela kungaphendula lezi ngokuqondile. Abangakwazi mhlawumbe bakhipha ngaphezu kwalokho abavumayo.
I-Supply Chain Reality
Kumaseli angena ezintweni zezimboni-ama-forklift, ama-AGV, ama-aerial lifts, ama-floor scrubber-ikhwalithi yezinto ezibonakalayo ithinta izindleko ze-lifecycle ngaphezu kwentengo yokuthenga. Ai-lithium battery wholesaleukubala okusekelwe kuphela ku-$/kWh kugeja iphuzu uma ukwehluleka kwezigxivizo kukhuphula izingcingo zesevisi onyakeni wesithathu.
Amafilimu e-laminate aseJapane naseKorea abiza ngaphezulu. Nabo bafeyila kancane. Amafilimu aseShayina asebenza kahle-ezinhlelweni ezimfishane zomjikelezo noma lapho ukucindezelwa kwezindleko kubusa khona. Qondanisa i-spec yempahla nenye yokusetshenziswa kwangempela kunokuzenzakalela zibe ezishibhe{4}}ezitholakalayo.
Abakhiqizi bebhethri ye-lithiumngochwepheshe{0}wokuvalwa kwendlu bavame ukwenza izinqumo ezingcono zokuthola usizo lapha. Labo abathenga imigqa ye-turnkey futhi basebenzise noma iyiphi ifilimu umthengisi wemishini oyiphakamisile... imiphumela iyahlukahluka.
Ukubeka uphawu akunzima kumqondo-wokushisa, ukucindezela, ukupholisa. Ukuyilungisa kahle ngamavolumu okukhiqiza, ngokungena kwamathebhu, izingozi zokungcoliswa kwe-electrolyte, namagradient ashisayo, kuthatha isiyalo senqubo esiningi kunalokho okushiwo ubulula. Ukuthembeka kwenkundla kulandelela eduze kakhulu nokuthi umkhiqizi ukunaka kangakanani lesi sinyathelo.
