Iibhetri ze-lithium ze-aluminium shell yesikwere zinezibonelelo ezininzi ezifana nesakhiwo esilula, ukumelana nempembelelo elungileyo, uxinano olukhulu lwamandla, kunye nomthamo omkhulu weeseli. Zisoloko ziyindlela ephambili yokwenziwa nokuphuhliswa kweebhetri ze-lithium zasekhaya, zibangela ngaphezulu kwe-40% yemarike.
Ulwakhiwo lwebhetri ye-lithium yeshell ye-aluminiyam yesikwere lunjengoko lubonisiwe kumfanekiso, owenziwe yi-core yebhetri (amaphepha e-electrode alungileyo nangalunganga, i-separator), i-electrolyte, i-shell, i-top cover kunye nezinye izinto.
Isakhiwo sebhetri ye-lithium ye-aluminium shell yesikwere
Ngexesha lenkqubo yokuvelisa nokuhlanganisa iibhetri ze-lithium zesikwere se-aluminium shell, inani elikhuluukuwelda nge-laserIinkqubo ezifunekayo, ezinje: ukuwelda uqhagamshelo oluthambileyo lweeseli zebhetri kunye neepleyiti zokugquma, ukuwelda ukutywina iipleyiti zokugquma, ukutywina ukutywina iinzipho, njl. Ukuwelda nge-laser yeyona ndlela iphambili yokuwelda kwiibhetri zamandla e-prismatic. Ngenxa yobuninzi bayo bamandla aphezulu, uzinzo oluhle lwamandla, ukuchaneka kokutywina okuphezulu, ukuhlanganiswa okulula kwenkqubo kunye nezinye izibonelelo ezininzi,ukuwelda nge-laserayinakutshintshwa kwinkqubo yokuvelisa iibhetri ze-prismatic aluminium shell lithium.
Iqonga le-galvanometer elizenzekelayo le-Maven eline-axis ezi-4umatshini wokuwelda wefayibha nge-laser
Umthungo wokuwelda wesitywina esingaphezulu sesona sitywina side kakhulu sokuwelda kwibhetri yesikwere se-aluminium shell, kwaye sikwangumthungo wokuwelda othatha ixesha elide ukuwelda. Kwiminyaka yakutshanje, ishishini lokuvelisa iibhetri ze-lithium liye laphuhla ngokukhawuleza, kwaye iteknoloji yenkqubo yokuwelda yelaser yokutywina isigqubuthelo esingaphezulu kunye netekhnoloji yezixhobo zayo nayo iye yaphuhla ngokukhawuleza. Ngokusekelwe kwisantya sokuwelda esahlukileyo kunye nokusebenza kwezixhobo, sahlulahlula izixhobo zokuwelda zelaser zokugubungela isigqubuthelo esingaphezulu zibe ziixesha ezintathu. Zixesha le-1.0 (2015-2017) elinesantya sokuwelda esingaphantsi kwe-100mm/s, ixesha le-2.0 (2017-2018) eline-100-200mm/s, kunye nexesha le-3.0 (2019-) eline-200-300mm/s. Oku kulandelayo kuya kwazisa uphuhliso lwetekhnoloji kwindlela yexesha:
1. Ixesha le-1.0 letekhnoloji yokuwelda yelaser egqunywe nge-top cover
Isantya sokuwelda＜100mm/s
Ukususela ngo-2015 ukuya ku-2017, izithuthi zamandla ezintsha zasekhaya zaqala ukuqhuma ngenxa yemigaqo-nkqubo, kwaye imboni yeebhetri zamandla yaqala ukwanda. Nangona kunjalo, ukuqokelelwa kwetekhnoloji kunye nokugcinwa kwetalente kwamashishini asekhaya kusencinci kakhulu. Iinkqubo zokwenziwa kweebhetri ezinxulumeneyo kunye netekhnoloji yezixhobo nazo zisesencinci, kwaye inqanaba lokuzenzekela kwezixhobo liphantsi kakhulu, abavelisi bezixhobo basandula ukuqala ukunaka ukwenziwa kweebhetri zamandla kunye nokwandisa utyalo-mali kuphando nophuhliso. Kweli nqanaba, iimfuno zokusebenza kakuhle kwemveliso yeshishini kwizixhobo zokutywina i-laser yebhetri yesikwere zihlala ziyi-6-10PPM. Isisombululo sezixhobo sidla ngokusebenzisa i-laser yefayibha ye-1kw ukukhupha ngesixhobo esiqhelekileyointloko yokuwelda nge-laser(njengoko kubonisiwe kumfanekiso), kwaye intloko yokudibanisa iqhutywa yimoto yeplatifomu ye-servo okanye imota ethe tyaba. Ukuhamba kunye nokudibanisa, isantya sokudibanisa yi-50-100mm/s.
Ukusebenzisa i-laser ye-1kw ukutshixa ikhava ephezulu yebhetri
Kwiukuwelda nge-laserinkqubo, ngenxa yesantya esiphantsi sokuwelda kunye nexesha elide lomjikelo wobushushu we-weld, ichibi elinyibilikisiweyo linexesha elaneleyo lokuhamba nokuqina, kwaye igesi ekhuselayo inokugubungela ngcono ichibi elinyibilikisiweyo, okwenza kube lula ukufumana umphezulu ogudileyo nopheleleyo, i-welds enobungqingqwa obuhle, njengoko kubonisiwe ngezantsi.
Ukwenziwa komthungo wokuwelda ukuze kufakwe umthungo ongaphezulu ngesantya esiphantsi
Ngokuphathelele izixhobo, nangona ukusebenza kakuhle kwemveliso kungaphantsi, ulwakhiwo lwezixhobo lulula, uzinzo lulungile, kwaye iindleko zezixhobo ziphantsi, nto leyo ehlangabezana neemfuno zophuhliso lweshishini kweli nqanaba kwaye ibeka isiseko sophuhliso lwetekhnoloji olulandelayo.
Nangona i-top cover sealing welding 1.0 era ineengenelo zesisombululo sezixhobo esilula, iindleko eziphantsi, kunye nokuzinza okuhle. Kodwa imida yayo nayo icacile kakhulu. Ngokuphathelele izixhobo, amandla okuqhuba imoto awakwazi ukuhlangabezana neemfuno zokunyuka kwesantya ngakumbi; ngokweteknoloji, ukunyusa nje isantya sokudibanisa kunye nokukhupha amandla e-laser ukuze kukhawuleziswe ngakumbi kuya kubangela ukungazinzi kwinkqubo yokudibanisa kunye nokuncipha kwesivuno: ukwanda kwesantya kunciphisa ixesha lomjikelo wobushushu bokudibanisa, kwaye isinyithi Inkqubo yokunyibilika inamandla ngakumbi, ukutshiza kuyanda, ukuziqhelanisa nokungcola kuya kuba kubi ngakumbi, kwaye imingxunya yokutshiza inokwenzeka ngakumbi. Kwangaxeshanye, ixesha lokuqina kwechibi elinyibilikisiweyo liyafinyezwa, nto leyo eya kubangela ukuba umphezulu wokutshiza ube rhabaxa kwaye ukuhambelana kuncitshiswe. Xa indawo yelaser incinci, igalelo lobushushu alilikhulu kwaye ukutshiza kunokuncitshiswa, kodwa umlinganiselo wobunzulu nobubanzi bokutshiza mkhulu kwaye ububanzi bokutshiza alwanelanga; xa indawo yelaser inkulu, amandla amakhulu e-laser kufuneka afakwe ukuze kwandiswe ububanzi bokutshiza. Inkulu, kodwa kwangaxeshanye iya kukhokelela ekwandeni kokuchitheka kwe-welding kunye nomgangatho ophantsi wokwenza umphezulu we-weld. Phantsi kwenqanaba lobugcisa kweli nqanaba, ukukhawulezisa okungakumbi kuthetha ukuba isivuno kufuneka sitshintshiswe ukuze kusebenze kakuhle, kwaye iimfuno zokuphucula izixhobo kunye netekhnoloji yenkqubo ziye zaba ziimfuno zoshishino.
2. Ixesha le-2.0 lekhava ephezuluukuwelda nge-laserubuchwepheshe
Isantya sokuwelda 200mm/s
Ngowama-2016, amandla ebhetri yamandla eemoto efakwe eTshayina ayemalunga ne-30.8GWh, ngowama-2017 ayemalunga ne-36GWh, kwaye ngowama-2018, kwathi kwabakho ukuqhuma okungakumbi, amandla afakiweyo afikelela kwi-57GWh, ukunyuka konyaka nonyaka kwe-57%. Izithuthi zamandla amatsha nazo zivelise phantse isigidi esinye, ukunyuka konyaka nonyaka kwe-80.7%. Emva kokuqhuma kwamandla afakiweyo kukho ukukhululwa kwamandla okuvelisa ibhetri ye-lithium. Iibhetri zezithuthi zamandla amatsha zingaphezulu kwe-50% yamandla afakiweyo, nto leyo ethetha ukuba iimfuno zeshishini zokusebenza kwebhetri kunye nomgangatho ziya kuba nzima ngakumbi, kwaye uphuculo oluhambelanayo kwitekhnoloji yezixhobo zokwenza kunye netekhnoloji yeNkqubo nalo lungene kwixesha elitsha: ukuze kuhlangatyezwane neemfuno zamandla okuvelisa umgca omnye, amandla okuvelisa izixhobo zokuwelda zelaser ezigqunywe phezulu kufuneka anyuswe aye kwi-15-20PPM, kwayeukuwelda nge-laserisantya kufuneka sifikelele kwi-150-200mm/s. Ke ngoko, ngokubhekiselele kwiimoto zokuqhuba, abavelisi bezixhobo ezahlukeneyo banayo. Iqonga leemoto ezithe ngqo liphuculwe ukuze indlela yalo yokuhamba ihlangabezane neemfuno zokusebenza kwentshukumo zendlela yokujikeleza ye-200mm/s efanayo yesantya; nangona kunjalo, indlela yokuqinisekisa umgangatho we-welding phantsi kwe-high-speed welding ifuna ukuqhubela phambili kwenkqubo, kwaye iinkampani kushishino ziye zenza uphando oluninzi kunye nezifundo: Xa kuthelekiswa nexesha le-1.0, ingxaki ejongene ne-high-speed welding kwixesha le-2.0 yile: ukusebenzisa ii-fiber lasers eziqhelekileyo ukuvelisa umthombo wokukhanya wenqaku elinye ngeentloko ze-welding eziqhelekileyo, ukhetho kunzima ukuhlangabezana nemfuneko ye-200mm/s.
Kwisisombululo sobuchwephesha sokuqala, isiphumo sokwenza i-welding sinokulawulwa kuphela ngokucwangcisa iinketho, ukulungisa ubungakanani bendawo, kunye nokulungisa iiparameter ezisisiseko ezifana namandla e-laser: xa usebenzisa uqwalaselo olunendawo encinci, umngxuma wesitshixo sedama lokuwelda uya kuba mncinci, imo yedama lokuwelda iya kuba ingazinzile, kwaye i-welding iya kuba ingazinzile. Ububanzi bokuhlanganiswa komthungo buncinci kakhulu; xa usebenzisa uqwalaselo olunendawo enkulu yokukhanya, umngxuma wesitshixo uya kwanda, kodwa amandla okuwelda aya kwanda kakhulu, kwaye amazinga okuchitheka kunye nemingxunya yokuqhumisa aya kwanda kakhulu.
Ngokwethiyori, ukuba ufuna ukuqinisekisa isiphumo sokwakha i-weld se-high-speedukuwelda nge-laserkwisigqubuthelo esiphezulu, kufuneka uhlangabezane neemfuno ezilandelayo:
① Umthungo wokuthunga unobubanzi obaneleyo kwaye umlinganiselo wobunzulu-ububanzi bomthungo wokuthunga ufanelekile, nto leyo efuna ukuba uluhlu lwesenzo sobushushu somthombo wokukhanya lube lukhulu ngokwaneleyo kwaye amandla omgca wokuthunga abe ngaphakathi koluhlu olufanelekileyo;
② I-weld igudile, nto leyo efuna ukuba ixesha lomjikelo wobushushu we-weld libe lide ngokwaneleyo ngexesha lenkqubo yokuwelda ukuze ichibi elinyibilikisiweyo libe nolwelo olwaneleyo, kwaye i-weld iqine ibe yi-weld yesinyithi egudileyo phantsi kokhuselo lwegesi ekhuselayo;
③ Umthungo we-weld unobume obuhle kunye neembobo ezimbalwa kunye nemingxuma. Oku kufuna ukuba ngexesha lenkqubo yokudibanisa, i-laser isebenza ngokuzinzileyo kwindawo yokusebenza, kwaye i-plasma enamandla aphezulu iveliswa rhoqo kwaye isebenza ngaphakathi kwidama elinyibilikisiweyo. Idama elinyibilikisiweyo livelisa "isitshixo" phantsi kwamandla okusabela kwe-plasma. "umngxuma", isitshixo sikhulu ngokwaneleyo kwaye sizinzile ngokwaneleyo, ukuze umphunga wesinyithi kunye ne-plasma evelisiweyo kube lula ukuyikhupha kwaye ikhuphe amaconsi esinyithi, yenze i-splashes, kwaye idama elinyibilikisiweyo elijikeleze isitshixo akulula ukulidiliza kwaye libandakanye igesi. Nokuba izinto zangaphandle zitshiswa ngexesha lenkqubo yokudibanisa kwaye iigesi zikhutshwa ngokuqhushumba, isitshixo esikhulu silungele ngakumbi ukukhutshwa kweegesi eziqhumayo kwaye sinciphise ukuchitheka kwesinyithi kunye nemingxuma eyenziweyo.
Ukuphendula kula manqaku angasentla, iinkampani zokwenza iibhetri kunye neenkampani zokwenza izixhobo kushishino ziye zenza imizamo eyahlukeneyo kunye neendlela zokusebenza: Ukwenziwa kweebhetri zeLithium kuye kwaphuhliswa eJapan kangangeminyaka emininzi, kwaye ubuchwepheshe obunxulumene nokuvelisa buye bakhokela.
Ngowama-2004, xa ubuchwepheshe be-fiber laser babungekasetyenziswa kakhulu kwezorhwebo, iPanasonic yasebenzisa ii-LD semiconductor lasers kunye nee-pulse lanterns ze-YAG ezifakwe isibane ukuze zivelise imveliso exutyiweyo (umzobo uboniswe kumfanekiso ongezantsi).
Umzobo weskimu setekhnoloji yokuwelda ye-multi-laser hybrid kunye nesakhiwo sentloko yokuwelda
Indawo yokukhanya enobunzima obuphezulu eveliswa yi-pulsedIleyiza ye-YAGInendawo encinci isetyenziselwa ukusebenza kwindawo yokusebenza ukuvelisa imingxunya yokuwelda ukuze kufunyanwe ukungena okwaneleyo kokuwelda. Kwangaxeshanye, i-LD semiconductor laser isetyenziselwa ukubonelela nge-CW continuous laser ukuze ifudumale kwaye idibanise indawo yokusebenza. Ichibi elinyibilikisiweyo ngexesha lenkqubo yokuwelda linika amandla angakumbi ukuze kufunyanwe imingxunya emikhulu yokuwelda, yonyuse ububanzi bomthungo wokuwelda, kwaye yandise ixesha lokuvala kwemingxunya yokuwelda, inceda igesi ekwichibi elinyibilikisiweyo ukuba iphume kwaye inciphise ukuxinana komthungo wokuwelda, njengoko kubonisiwe ngezantsi.
Umzobo wesicwangciso se-hybridukuwelda nge-laser
Ukusebenzisa le teknoloji,Iileyiza zeYAGkwaye ii-laser ze-LD ezinamandla angamakhulu ambalwa kuphela zingasetyenziselwa ukuwelda iibhokisi zebhetri ye-lithium ezibhityileyo ngesantya esiphezulu se-80mm/s. Isiphumo sokuwelda sinjengoko kubonisiwe kumfanekiso.
Imofoloji ye-Weld phantsi kweeparamitha zenkqubo ezahlukeneyo
Ngophuhliso kunye nokwanda kwee-laser zefayibha, ii-laser zefayibha ziye zathatha indawo yee-laser ze-YAG ezivuthululweyo kancinci kancinci ekucutshungulweni kwesinyithi se-laser ngenxa yeenzuzo zazo ezininzi ezifana nomgangatho olungileyo we-beam, ukusebenza kakuhle kokuguqulwa kwe-photoelectric, ubomi obude, ukulungiswa okulula, kunye namandla aphezulu.
Ke ngoko, indibaniselwano yelaser kwisisombululo se-laser hybrid welding esingentla iguqukele kwi-laser ye-fiber laser + LD semiconductor, kwaye i-laser ikwaphuma nge-coaxially ngentloko yokucubungula ekhethekileyo (intloko ye-welding iboniswe kuMfanekiso 7). Ngexesha lenkqubo ye-welding, indlela yokusebenza kwelaser iyafana.
Idibanisi yokuwelda yelaser edityanisiweyo
Kule sicwangciso, i-pulsedIleyiza ye-YAGithathelwa indawo yilaser yefayibha enomgangatho ongcono wemitha, amandla amakhulu, kunye nemveliso eqhubekayo, eyonyusa kakhulu isantya sokuwelda kwaye ifumane umgangatho ongcono wokuwelda (isiphumo sokuwelda siboniswe kuMfanekiso 8). Esi sicwangciso sikwathandwa ngabanye abathengi. Okwangoku, esi sisombululo sisetyenzisiwe ekuveliseni ukuwelda kwebhetri yamandla, kwaye sinokufikelela kwisantya sokuwelda se-200mm/s.
Inkangeleko ye-weld yesigqubuthelo esiphezulu nge-hybrid laser welding
Nangona isisombululo sokuwelda selaser esinobude obuphindwe kabini sisombulula uzinzo lokuwelda kokuwelda ngesantya esiphezulu kwaye sihlangabezana neemfuno zomgangatho wokuwelda kokuwelda ngesantya esiphezulu kwezigqubuthelo eziphezulu zeeseli zebhetri, kusekho iingxaki ezithile ngesi sisombululo ngokwembono yezixhobo kunye nenkqubo.
Okokuqala, izinto zehardware zesi sisombululo ziyinkimbinkimbi, zifuna ukusetyenziswa kweentlobo ezimbini ezahlukeneyo ze-laser kunye neejoyinti ezikhethekileyo ze-laser welding ze-dual-wavelength, nto leyo enyusa iindleko zotyalo-mali lwezixhobo, inyusa ubunzima bokugcinwa kwezixhobo, kwaye inyusa iindawo ezinokwenzeka zokusilela kwezixhobo;
Okwesibini, ubude be-wave-dualukuwelda nge-laserIjoyinti esetyenzisiweyo yenziwe ngeeseti ezininzi zeelensi (jonga uMfanekiso 4). Ukulahleka kwamandla kukhulu kunejoyinti eqhelekileyo yokudibanisa, kwaye indawo yelensi kufuneka ilungiswe kwindawo efanelekileyo ukuqinisekisa ukuphuma kwe-coaxial kwe-laser ye-dual-wavelength. Kwaye xa kugxilwe kwi-fixed focal plane, ukusebenza kwesantya esiphezulu ixesha elide, indawo yelensi inokuba yikhululekile, nto leyo ebangela utshintsho kwindlela yokukhanya kwaye ichaphazele umgangatho wokudibanisa, nto leyo edinga ukulungiswa kwakhona ngesandla;
Okwesithathu, ngexesha lokuwelda, ukubonakaliswa kwelaser kuba nzima kwaye kunokonakalisa izixhobo kunye nezinto ezisetyenzisiweyo ngokulula. Ingakumbi xa kulungiswa iimveliso ezineziphene, umphezulu we-weld ogudileyo ubonakalisa ukukhanya okukhulu kwelaser, okunokubangela i-alamu yelaser ngokulula, kwaye iiparameter zokucubungula kufuneka zilungiswe ukuze zilungiswe.
Ukuze sisombulule ezi ngxaki zingasentla, kufuneka sifumane enye indlela yokuphonononga. Ngo-2017-2018, sifunde nge-high-frequency swingukuwelda nge-laseriteknoloji yesigqubuthelo sebhetri esingaphezulu yaza yasikhuthaza ukuba sisetyenziswe kwimveliso. Ukuwelda kwe-swing okuhamba rhoqo nge-laser beam (okubizwa ngokuba yi-swing welding) yenye inkqubo yokuwelda ekhawulezayo ye-200mm/s.
Xa kuthelekiswa nesisombululo se-hybrid laser welding, inxalenye yehardware yesi sisombululo ifuna kuphela i-fiber laser eqhelekileyo edibene nentloko ye-laser welding ejikelezayo.
intloko yokuwelda eguquguqukayo
Kukho ilensi ebonakalisayo eqhutywa yimoto ngaphakathi kwentloko ye-welding, enokucwangciswa ukulawula i-laser ukuba ijike ngokwendlela eyilelweyo yohlobo lwe-trajectory (ngesiqhelo ijikeleza, imilo engu-S, imilo engu-8, njl.njl.), ubukhulu be-swing kunye ne-frequency. Iiparamitha ezahlukeneyo ze-swing zingenza i-welding cross section Iza ngeemilo ezahlukeneyo kunye nobukhulu obahlukeneyo.
Ii-Welds ezifunyenwe phantsi kweendlela ezahlukeneyo zokujika
Intloko yokwela ye-swing ephindaphindayo iqhutywa yi-linear motor ukuze idibanise phakathi kwesithuba esiphakathi kwezinto zokusebenza. Ngokwe-subwoofer yodonga lwe-cell shell, kukhethwa uhlobo olufanelekileyo lwe-swing trajectory kunye ne-amplitude. Ngexesha lokwela, i-static laser beam iya kwenza kuphela i-weld cross section enomfanekiso we-V. Nangona kunjalo, iqhutywa yi-swing welding head, i-beam spot ijika ngesantya esiphezulu kwi-focal plane, yenza i-dynamic and rotating welding keyhole, enokufumana umlinganiselo ofanelekileyo we-weld depth-to-width ratio;
Umngxuma wesitshixo sokudibanisa ojikelezayo uvuselela i-weld. Kwelinye icala, inceda ukuphuma kwegesi kwaye inciphise iimbobo ze-weld, kwaye inefuthe elithile ekulungiseni imingxuma ekwindawo yokuqhuma kwe-weld (jonga uMfanekiso 12). Kwelinye icala, isinyithi se-weld siyafudunyezwa kwaye sipholiswe ngendlela ecwangcisiweyo. Ukujikeleza kwegazi kwenza umphezulu we-weld ubonakale njengomzekelo oqhelekileyo nocwangcisiweyo wesikali seentlanzi.
Ukuthunga umthungo wokwenza i-swing welding
Ukuzivumelanisa nezimo ze-welds ukuze zipeyintwe phantsi kweeparamitha ezahlukeneyo ze-swing
Ezi ngongoma zingasentla ziyahlangabezana neemfuno ezintathu ezisisiseko zomgangatho wokuwelda ngesantya esiphezulu kwesiciko esingaphezulu. Esi sisombululo sinezinye izibonelelo:
① Ekubeni uninzi lwamandla elaser lufakwa kwisitshixo esiguqukayo, ilaser yangaphandle esasazekileyo iyancitshiswa, ngoko ke kufuneka amandla elaser amancinci kuphela, kwaye igalelo lobushushu be-welding liphantsi kakhulu (30% ngaphantsi kwe-composite welding), nto leyo enciphisa ukulahleka kwezixhobo kunye nokulahleka kwamandla;
2 Indlela yokuwelda nge-swing iyakwazi ukuhambelana nomgangatho wokuhlanganisa izinto zokusebenza kwaye inciphisa iziphene ezibangelwa ziingxaki ezifana namanyathelo okuhlanganisa;
③Indlela yokuwelda nge-swing inefuthe elikhulu ekulungiseni imingxuma yokuwelda, kwaye izinga lokuvelisa le ndlela ukulungisa imingxuma yokuwelda engundoqo yebhetri liphezulu kakhulu;
④Le nkqubo ilula, kwaye ukulungisa nokulungisa izixhobo kulula.
3. Ixesha le-3.0 lobuchwepheshe bokuwelda nge-laser cover ephezulu
Isantya sokuwelda 300mm/s
Njengoko inkxaso-mali entsha yamandla iqhubeka nokuncipha, phantse lonke uthotho lwemizi-mveliso yeshishini lokuvelisa iibhetri luye lwawela kulwandle olubomvu. Eli shishini nalo lingene kwixesha lokutshintsha, kwaye inani leenkampani eziphambili ezinobukhulu kunye neenzuzo zobuchwepheshe liye landa ngakumbi. Kodwa kwangaxeshanye, "ukuphucula umgangatho, ukunciphisa iindleko, kunye nokwandisa ukusebenza kakuhle" kuya kuba ngumxholo ophambili weenkampani ezininzi.
Ngexesha lenkxaso-mali ephantsi okanye engekhoyo, kuphela ngokufezekisa uphuculo oluphindaphindeneyo lobuchwepheshe, ukufikelela ekusebenzeni kakuhle kwemveliso, ukunciphisa iindleko zokuvelisa ibhetri enye, kunye nokuphucula umgangatho wemveliso apho sinokufumana ithuba elongezelelweyo lokuphumelela kukhuphiswano.
I-Han's Laser iyaqhubeka nokutyala imali kuphando malunga netekhnoloji yokuwelda ekhawulezayo kwizigqubuthelo zeeseli zebhetri. Ukongeza kwiindlela ezahlukeneyo zenkqubo ezivezwe apha ngasentla, ikwafunda ngetekhnoloji ephucukileyo efana netekhnoloji yokuwelda yelaser ye-annular spot kunye netekhnoloji yokuwelda yelaser ye-galvanometer yezigqubuthelo zeeseli zebhetri.
Ukuze kuphuculwe ngakumbi ukusebenza kakuhle kwemveliso, jonga iteknoloji yokuwelda egqunywe phezulu kwi-300mm/s kunye nesantya esiphezulu. I-Han's Laser ifunde ukuskena i-galvanometer laser welding sealing ngo-2017-2018, ityhutyha ubunzima bobuchwephesha bokukhusela igesi enzima yesixhobo sokusebenza ngexesha lokuwelda kwe-galvanometer kunye nempembelelo embi yokwenza umphezulu we-weld, kwaye ifikelela kwi-400-500mm/s.ukuwelda nge-laserkwesiciko seseli. Ukuwelda kuthatha umzuzwana omnye kuphela kwibhetri ye-26148.
Nangona kunjalo, ngenxa yokusebenza kakuhle okuphezulu, kunzima kakhulu ukuphuhlisa izixhobo ezixhasayo ezihambelana nokusebenza kakuhle, kwaye iindleko zezixhobo ziphezulu. Ke ngoko, akukho phuhliso lwesicelo sorhwebo olwenziweyo kwesi sisombululo.
Ngophuhliso olongezelelekileyo lwei-laser yefayibhaiteknoloji, iilaser ezintsha zefayibha ezinamandla aphezulu ezinokukhupha ngokuthe ngqo amabala okukhanya anemilo yeringi ziye zaqaliswa. Olu hlobo lwelaser lunokukhupha amabala elaser aneringi yepoint-ring ngokusebenzisa iifayibha ezikhethekileyo ze-optical ezineeleya ezininzi, kwaye imo yeringi kunye nokusasazwa kwamandla kunokulungiswa, njengoko kubonisiwe kumfanekiso.
Ii-Welds ezifunyenwe phantsi kweendlela ezahlukeneyo zokujika
Ngokuhlengahlengiswa, usasazo lwamandla elaser lunokwenziwa lube yimo ye-spot-donut-tophat. Olu hlobo lwelaser lubizwa ngokuba yiCorona, njengoko kubonisiwe kumfanekiso.
Umqadi welaser ohlengahlengiswayo (ngokulandelelanayo: isibane esiphakathi, isibane esiphakathi + isibane seringi, isibane seringi, izibane ezimbini zeringi)
Ngowama-2018, ukusetyenziswa kweelaser ezininzi zolu hlobo ekudibaniseni ii-aluminium shell battery cell top covers kwavavanywa, kwaye ngokusekelwe kwi-Corona laser, uphando kwisisombululo seteknoloji yenkqubo ye-3.0 sokudibanisa iilaser kwii-battery cell top covers lwaqaliswa. Xa i-Corona laser yenza i-point-ring mode output, iimpawu zokusasazwa kwamandla obuninzi be-output beam yayo ziyafana ne-composite output ye-semiconductor + fiber laser.
Ngexesha lenkqubo yokudibanisa, isibane esisembindini esinobuninzi bamandla senza umngxuma wesitshixo sokudibanisa okunzulu ukuze kufunyanwe ukungena okwaneleyo kokudibanisa (okufana nokukhupha kwelaser yefayibha kwisisombululo sokudibanisa esihlanganisiweyo), kwaye isibane esijikelezayo sinika ubushushu obukhulu, sandise umngxuma wesitshixo, sinciphise impembelelo yomphunga wesinyithi kunye neplasma kwisinyithi esilulwelo kumphetho wesitshixo, sinciphise ukuchitheka kwesinyithi okubangelwayo, kwaye sonyuse ixesha lomjikelo wobushushu we-weld, sincede igesi echibini elinyibilikisiweyo ukuba iphume ixesha elide, siphucula ukuzinza kweenkqubo zokudibanisa ezikhawulezayo (ezifana nokukhupha kweelaser ze-semiconductor kwizisombululo zokudibanisa ezihlanganisiweyo).
Kolu vavanyo, sidibanise iibhetri zegobolondo ezinodonga oluncinci saza safumanisa ukuba ubungakanani be-weld bulungile kwaye amandla enkqubo ye-CPK alungile, njengoko kubonisiwe kuMfanekiso 18.
Inkangeleko yokuwelda kwesiciko sebhetri esingaphezulu kodonga kunye nobukhulu be-0.8mm (isantya sokuwelda yi-300mm/s)
Ngokuphathelele izixhobo zekhompyutha, ngokungafaniyo nesisombululo se-hybrid welding, esi sisombululo silula kwaye asifuni ii-laser ezimbini okanye intloko ekhethekileyo ye-hybrid welding. Sifuna kuphela intloko ye-laser welding eqhelekileyo enamandla aphezulu (ekubeni i-optical fiber enye kuphela ekhupha i-laser enye ye-wavelength, ulwakhiwo lwelensi lulula, akukho hlengahlengiso lufunekayo, kwaye ukulahleka kwamandla kuphantsi), okwenza kube lula ukulungisa nokugcina, kwaye uzinzo lwezixhobo luphuculwe kakhulu.
Ukongeza kwinkqubo elula yesisombululo sehardware kunye nokuhlangabezana neemfuno zenkqubo yokuwelda ekhawulezayo yesigqubuthelo esiphezulu seseli yebhetri, esi sisombululo sinezinye izibonelelo kwizicelo zenkqubo.
Kolu vavanyo, sidibanise isigqubuthelo sebhetri esiphezulu ngesantya esiphezulu se-300mm/s, saza safumana iziphumo ezilungileyo zokwakheka komthungo we-welding. Ngaphezu koko, kwiigobolondo ezinobukhulu obahlukeneyo bodonga obuyi-0.4, 0.6, kunye ne-0.8mm, kuphela Ngokulungisa imo yokuphuma kwelaser, i-welding elungileyo inokwenziwa. Nangona kunjalo, kwizisombululo ze-laser hybrid welding ezi-dual-wavelength, kuyimfuneko ukutshintsha uqwalaselo lwe-optical lwentloko ye-welding okanye i-laser, oluya kuzisa iindleko ezinkulu zezixhobo kunye neendleko zexesha lokulungisa iimpazamo.
Ngoko ke, indawo yeringi yenqakuukuwelda nge-laserIsisombululo asinakukwazi kuphela ukufezekisa ukuwelda kwe-top cover ngesantya esiphezulu kwi-300mm/s kwaye siphucule ukusebenza kakuhle kwemveliso yeebhetri zamandla. Kwiinkampani ezenza iibhetri ezifuna utshintsho oluqhelekileyo lweemodeli, esi sisombululo sinokuphucula kakhulu umgangatho wezixhobo kunye neemveliso, sinciphise utshintsho lweemodeli kunye nexesha lokulungisa iimpazamo.
Inkangeleko yokuwelda kwesiciko sebhetri esingaphezulu kodonga kunye nobukhulu be-0.4mm (isantya sokuwelda yi-300mm/s)
Inkangeleko yokuwelda kwesiciko sebhetri esingaphezulu kodonga kunye nobukhulu be-0.6mm (isantya sokuwelda yi-300mm/s)
Ukungena kweCorona Laser Weld kwiThin-Wall Cell Welding – Amandla eNkqubo
Ukongeza kwi-Corona laser ekhankanyiweyo apha ngasentla, ii-AMB lasers kunye nee-ARM lasers zineempawu ezifanayo zokukhupha ukukhanya kwaye zinokusetyenziselwa ukusombulula iingxaki ezinje ngokuphucula i-laser weld spatter, ukuphucula umgangatho womphezulu weld, kunye nokuphucula uzinzo lwe-welding olukhawulezayo.
4. Isishwankathelo
Izisombululo ezahlukeneyo ezikhankanyiweyo apha ngasentla zonke zisetyenziswa kwimveliso yokwenyani ziinkampani ezenza iibhetri ze-lithium zasekhaya nezangaphandle. Ngenxa yexesha lokuvelisa elahlukileyo kunye nemvelaphi yobugcisa eyahlukileyo, izisombululo zenkqubo ezahlukeneyo zisetyenziswa kakhulu kushishino, kodwa iinkampani zinemfuno ephezulu yokusebenza kakuhle kunye nomgangatho. Ihlala iphucuka, kwaye ubuchwepheshe obutsha buza kusetyenziswa kungekudala ziinkampani eziphambili kubuchwepheshe.
Ishishini elitsha leebhetri zamandla laseTshayina liqale emva kwexesha kwaye liphuhlise ngokukhawuleza liqhutywa yimigaqo-nkqubo yesizwe. Ubuchwepheshe obunxulumene nalo buqhubekile nokuqhubela phambili ngemizamo edibeneyo yecandelo lonke leshishini, kwaye bunciphise ngokupheleleyo umsantsa kwiinkampani zamazwe ngamazwe ezibalaseleyo. Njengomvelisi wezixhobo zebhetri ye-lithium yasekhaya, iMaven ikwahlola rhoqo iindawo zayo eziluncedo, inceda ukuphuculwa okuphindaphindayo kwezixhobo zebhetri, kwaye ibonelela ngezisombululo ezingcono zokuvelisa ngokuzenzekelayo iiphakheji ezintsha zebhetri yokugcina amandla.
Ixesha lokuthumela: Septemba-19-2023
