Ngaba i-BYD iqinisekisa njani ukhuseleko lwebhetri ye-lithium-ion?

Umbhali :Iflowpower-UMboneleli weSikhululo saMandla esiphathwayo

Kwinyanga yakutshanje, iingozi zokhuseleko lweemoto zamandla amatsha rhoqo. Ngokwezibalo ezingaphelelanga, kuphela inani leemoto zombane ezenzeke kwiinyanga ezimbini zalo nyaka, inani elipheleleyo leengozi zomlilo kwi-2017 kulo lonke i-2017. Kuyafaneleka ukuba uqaphele ukuba ezininzi zezi moto zombane zisengozini yomlilo, kukho. iibhetri ezininzi ze-lithium-ion ezinamandla.

Ingabonwa ukuba ukuthembeka kwebhetri ye-lithium-ion kuhambelana nokhuseleko lomntu kunye nepropati yomthengi. Ke, kutheni ibhetri ye-lithium-ion ithathwa yimoto yombane? Ngawaphi amanyathelo azenzayo iipakethe zebhetri? I-thermal ngaphandle kolawulo yinyani, amandla ebhetri ye-lithium-ion eguquguqukayo. Ibhetri ye-lithium-ion inkulu, kwaye i-original ibangelwa yi-thermal ngaphandle kolawulo.

Okwangoku, ukwakhiwa kweenqwelo zombane ezicocekileyo azikafezeki kakhulu. Abathengi balungele iimoto zombane ezisulungekileyo. Akukho lula ukufikelela kwinqwelo yamafutha.

Ngaba umthengi okanye imveliso entsha yamandla, kukho imfuneko ethile kubomi bebhetri. Ngoko ke, kukho ibhetri ye-lithium-ion ye-yuan emithathu enobunzima obulula kunye namandla aphezulu, isetyenziswa ziinkampani ezininzi zeemoto zamandla amatsha. Nangona kunjalo, ibhetri ye-lithium-ion ye-three-dimensional ine-disadvant ebulalayo, ekulula ukubangela ingozi yomlilo emva kokuba isithuthi sidibene, kunye nenqununu, i-thermostat ebangelwa ukufudumala kwebhetri.

(Ibhetri ye-ion ye-ion ye-lithium ye-iron phosphate esetyenzisiweyo akulula ukuyiqala emva kongquzulwano, ubunzima bunzima kancinci, amandla mancinci kancinane, ngoko ngokuthe ngcembe athatyathelwe indawo yibhetri ye-ion ye-ion-dimensional ezintathu) kwisithuthi sombane esicocekileyo, Inkqubo yebhetri ye-lithium-ion yamandla iqulethwe ngobuninzi bamandla e-lithium-ion iiseli zebhetri, kwaye ubuninzi bobushushu bugxininiswe kwimeko encinci yebhetri ngexesha lokusebenza. Ukuba iikhalori azikwazi ukukhawuleza zihlakazeke ngexesha, aziyi kuchaphazela kuphela ubomi bebhetri ye-lithium-ion enamandla, kodwa kunye ne-phenomenon ye-thermal ngaphandle kolawulo, ngaloo ndlela ibangela izingozi ezifana nokuqhuma komlilo. Ukuba ngokomgaqo, kukho iimeko ezine zomgaqo wokuphuma kwe-thermal, oko kukuthi, ukusetyenziswa kakubi komatshini, ukusetyenziswa kakubi kombane, ukusetyenziswa kakubi kobushushu, kunye neesekethe ezimfutshane zangaphakathi.

Ukuxhatshazwa koomatshini kuthetha ukuba xa imoto ibetha, ngenxa yamandla angaphandle, iseli yebhetri ye-lithium-ion, ipakethe yebhetri ikhubazekile, kunye nokufuduswa kweendawo ezahlukeneyo, kubangela ukuba i-diaphragm yebhetri ikrazuke kwaye yenzeke imijikelezo emfutshane yangaphakathi, kunye nokuvuza kwe-electrolyte yamafutha Ekugqibeleni kubangele umlilo. Kuxhatshazo lomatshini, umonakalo wokugqojozwa uyingozi kakhulu, kunokubangela ukuba i-conductor ifake umzimba webhetri, okukhokelela kwipali echanekileyo kunye nebi yesekethe emfutshane. Kwaye ukusetyenziswa kakubi kombane kubangelwa ukusetyenziswa okungafanelekanga kwebhetri, kwaye kuneentlobo ezininzi zesiphaluka esifutshane sangaphandle, ukugqithiswa kunye nokukhutshwa ngokugqithiseleyo.

Phakathi kwabo, ngenxa yokuba ukukhutshwa kwenguqu kuncinci, ukunyuka kwabathunywa bethusi okubangelwa ukukhutshwa ngokugqithiseleyo kuya kunciphisa ukhuseleko lwebhetri, ngaloo ndlela amathuba amatsha okwandisa amandla. Isiphaluka esifutshane sangaphandle sisiphumo kwiimbini ezimbini zoxinzelelo oluhlukeneyo lwee-conductor kwi-core yombane. Xa isiphaluka esifutshane sangaphandle senzeke, ukushisa kwebhetri akukwazi ukusasazeka kakuhle, kwaye ubushushu bebhetri buya kunyuka, kwaye ukushisa okuphezulu okubangela ukushisa akulawuleki.

Okokugqibela, ukutshaja okugqithisileyo luhlobo lobungozi bokusetyenziswa kakubi kombane. Ngenxa yokufakelwa kwe-lithium engaphezulu, ikristale yesebe ye-lithium ikhula kumphezulu we-anode. Kwaye ukuchithwa okugqithisileyo kwe-lithium kubangela ukuba isakhiwo se-cathode siphahlazeke ngenxa yokushisa kunye nokukhululwa kwe-oxygen.

Ukukhutshwa kweoksijini kukhawuleza uhlalutyo lwe-electrolyte, ubuninzi begesi. Ngenxa yoxinzelelo olutsha lwangaphakathi, i-valve yokukhupha ivuliwe, ibhetri iqala ukukhupha. Emva kokuba i-substance esebenzayo kwibhetri idibene nomoya, ukusabela okumangalisayo kwenzeka, kubeka ubushushu obuninzi, ngaloo ndlela kubangela ukuba ipakethi yebhetri itshise umlilo.

Okulandelayo kukusetyenziswa kakubi okutshisayo, oku kubhekiselele ekugqithiseni kwendawo kwibhetri, engaphantsi kokuzimela, ngokuphindaphindiweyo ngokusetyenziswa kakubi komatshini kunye nokusetyenziswa kakubi kombane, kwaye yimeko ekuqaliseni okuthe tye kokugqibela. Ukuxhatshazwa okushushu kuphezulu kakhulu kumaqondo obushushu angaphandle, okanye i-short-circuit ebangelwa kukuveliswa kobushushu obuphezulu obubangelwa yinkqubo yokulawula ubushushu, ngoko kubangela ubushushu ngaphandle kolawulo. Ukususela kwiprotocol, ukungqubuzana, umonakalo, isakhiwo, ukusebenza kwebhetri, isakhiwo, ukusebenza okanye enye inkqubo yokulawula ukushisa, ukungaphumeleli kwenkqubo yokufudumala emoyeni kunokukhokelela ekusebenziseni kakubi ukushisa.

Okokugqibela, kukunqongophala kwangaphakathi. Le meko ibangelwa yipeni echanekileyo kunye nebi yebhetri, ngokuqhelekileyo ibangelwa ukusetyenziswa kakubi komatshini kunye nokuxhatshazwa kwe-thermal. Isiphaluka esifutshane sangaphakathi sibangelwa yinto efanayo, njengokutshaja ngokugqithiseleyo kweebhetri ze-lithium ion.

Ukuqokelelana kwee-dendrites kunokubangela ukugqobhoza i-diaphragm yebhetri, ngaloo ndlela isiphaluka esifutshane sangaphakathi okanye ukungqubana, emva komonakalo wokugqobhoza, okukhokelela kuqhagamshelwano olulungileyo nolubi. Ingabonwa ukuba kwingozi yomlilo yezithuthi zombane ezicocekileyo, ngokuqhelekileyo kubangelwa iimeko ezine ezingentla, kunye neengozi zangaphandle ziyi- aimedian factor. Kwakhona ngenxa yale nto, kumvelisi webhetri, kuya kubangela ingozi yomlilo kwisilumkiso okanye ngaphezulu, okungayi kulumka kakhulu ekuqhubeni ibhetri, kodwa kwakhona kuqhube uluhlu lwezilingo zovavanyo.

Phakathi kwabo, i-BYD ifanelwe yindumiso kulo mba. I-BYD iqinisekise ngebhetri ukhuseleko lwebhetri kwi-R & D, ukuze ikhusele ibhetri, ibhetri ye-BYD ithintelwe ukuphepha umngcipheko kumlinganiselo othile ngexesha lophando kunye nophuhliso. Ibhetri esetyenziswa kwiimoto zabahambi ze-BYD ngokusisiseko i-ternary lithium ion ibhetri, eyaziwa ngokuba yi-trith-dimensional lithium ion ibhetri, ebhekiselele kwizinto eziphathekayo ze-electrode usebenzisa i-nickel-cobalt-oxanate okanye i-lithium nickel-cobalt-oxide.

Ibhetri ye-lithium ion kwizinto ezi-ternary positive. Izinto ezilungileyo ze-electrode ezisetyenziswe yi-BYD ye-ternary lithium-ion ibhetri yi-lithium nickel-cobalt-oksijeni-melate, efana ne-lithium-cobalt-aluminate ion ibhetri, ngelixa ubuninzi bamandla buphezulu, buqinisekisa ibhetri elinganayo, ukuzinza, ngoko ke. iya kuba Ekhethwayo kumthengi-inqanaba langoku lemoto yombane yamandla e-lithium ion ibhetri. Nangona kunjalo, ukuzinza kwe-thermal ye-lithium nickel-cobalt-manganese acid kungcono kune-nickel-cobalt-aluminate, kwaye umlinganiselo womxholo we-nickel uncinci, kwaye kungcono ukwenza ibhalansi yobomi kunye nokhuseleko ngelixa ukwandisa ubuninzi bamandla.

Ke ngoko, ikhuseleke ngakumbi njengamandla e-lithium ion ibhetri. Okwesibini, ibhetri ye-lithium-ion yohlulwe ibe ngamacandelo amabini amakhulu eqokobhe eliqinileyo kunye nebhegi ethambileyo ngokweseli yombane, kwaye iqokobhe eliqinileyo linqweneleka kwiqokobhe lentsimbi kunye neqokobhe le-aluminium, kwaye ibhegi ethambileyo yifilimu ehlanganisiweyo yeplastiki. impahla. Phakathi kwabo, igobolondo elinzima lihlulwe libe yi-cylindrical kunye ne-square shell shell ngokucwangciswa kwezibonda ezintle kunye nezibi ngaphakathi kwayo.

Ngokulula, ezona phakheji ziqhelekileyo zebhetri zintlobo ezintathu, i-cylindrical, uhlobo lweqokobhe lesikwere kunye nohlobo lwebhegi ethambileyo. I-BYD isebenzisa iipakethi zeqokobhe le-aluminium yesikwere, ezinokwenza izinto zangaphakathi zebhetri ziqine ngakumbi, kunye nemithintelo yeqokobhe le-aluminium, akulula ukwandisa, ngokukhuselekileyo. Ukongezelela, iphakheji yegobolondo yesikwele inokuxhotyiswa ngokuqhushumba, kwaye ukuba kukho ukulahleka kobushushu, umoya wokwandisa ukhululwe kwicala elimiselweyo lodumo, akulula ukuchaphazela ezinye iiseli zebhetri.

Kwaye ngenxa yokuba iphakheji yesikwere isetyenzisiwe, i-gap yeseli incinci kakhulu, kwaye indlu ye-aluminium inoxinano oluncinci, ubunzima bokukhanya bulula, kunye noxinano lwamandla ebhetri kwiphakheji ye-square shell ingaba phezulu. Kukwafanelekile ukukhankanya ukuba inkqubo yokulawula ibhetri ye-BYD ibeka iliso kwimeko yebhetri ngexesha langempela, xa ubushushu bepakethi yebhetri bungaqhelekanga, ukutshatyalaliswa kobushushu okanye ukufudumeza ngenkqubo yokufudumala emoyeni, ukuqinisekisa ukhuseleko lwebhetri kunye nobomi. Kwaye kumandla-based lithium-ion ibhetri inkqubo yokulawula ubushushu obukrelekrele, amandla lithium ion ibhetri ipakethe yongeza ibhetri ukufudumeza, umsebenzi wokupholisa, kwaye ngaxeshanye ilungisa entsha ubushushu-insulated thermal insulation umsebenzi, ukuze ibhetri isebenze kubushushu obufanelekileyo. uluhlu, ukwandisa ubomi bebhetri.

Imifuniselo engqongqo yovavanyo ingcono ukuqinisekisa ukuba ukhuseleko lwebhetri lunokubonwa ngoku ngasentla, kwaye iibhetri ze-BYD ziqinisekise kakhulu ukhuseleko lweebhetri kwimveliso ye-R & D. Ewe, ukuze uvavanye ngcono ukhuseleko lwebhetri, i-BYD yenza uthotho lweemvavanyo eziqatha ngexesha leR & D yebhetri, kwaye iprojekthi yovavanyo yayinqweneleka ukulinganisa imeko apho abathengi banokudibana kusetyenziso lwemihla ngemihla. yabathengi. Ukutshaja, isiphaluka esifutshane, ukucudisa, i-acupuncture, umlilo, njl.

Uvavanyo lwe-overshoot lubalulekile ukulinganisa inkqubo yokutshaja imihla ngemihla yeebhetri ze-lithium ion ukuqinisekisa ukuthembeka kunye nokhuseleko lwebhetri. Kuyimfuneko ukuhlawulisa ikhoyo ngoku echazwe yibhetri, de kube ipakethe yebhetri okanye ibhetri ye-monomer ifikelele kumbane ochaziweyo de imodyuli yebhetri ihlawuliswe ngokupheleleyo. Emva koko yima, jonga ibhetri ngokungqinelana nexesha.

Ukulinganisa umfuniselo kukungaphumeleli kwesekethe emfutshane yebhetri. Kwiimvavanyo ezimfutshane, ibhetri ye-lithium ion yangaphakathi iya kudlula i-short-circuit current, ibhetri iveliswa ngokubanzi, i-bulging, i-valve yokukhusela i-pop-up, njl. , njl.

Kuyimfuneko ukwenza indawo engqongileyo echaziweyo (ubushushu obuqhelekileyo okanye ubushushu obuphezulu), beka ibhetri esetyenziswa kwibhokisi yobungqina bokudubula, kunye nofunyaniso lokulinganisa olufutshane lwesekethe yesampulu yesampulu yesampulu yesampulu. ukulinganisa. Ukufunyanwa kwebhetri yangaphandle yesekethe emfutshane. Injongo yolu lingo kukuphucula okanye ukuphucula iteknoloji, ukuthembeka kwebhetri entsha kunye nokhuseleko.

Image017.jpg Extrusion Test Ukwenza ukulinganisa kweengozi, xa umzimba wesithuthi ukhubazeke kakhulu, ibhetri iyacinezelwa xa ibhetri ikhutshiwe, kwaye ibhetri yonakaliswe yi-extrusion deformation, okanye ibangela iingozi ezifihliweyo ezifana nomlilo, ukuqhuma. Kuyimfuneko ukubeka ibhetri ye-monomer okanye imodyuli yebhetri esetyenziswe kuvavanyo kwisixhobo sokusebenza, kunye nepleyiti ye-semi-cylindrical extrusion echazwe kwiradiyasi i-perpendicular kwisantya sokucudisa (51) mm / s kwicala lebhetri. ipleyiti yepolar.

Isidanga sifikelela kumbane we0V?. Kwaye ujonge iyure ye-1, uvavanyo lufuna ukuba ibhetri ayinakho umlilo, hayi ukuqhuma. Lo mfuniselo waphinda wafanisa ingozi xa usebenzisa imoto, ibhetri yahlatywa yinto ebukhali, kwaye ngeendlela zobuchwepheshe zokuthintela umzimba wangaphandle, isiphaluka esifutshane sangaphakathi, esibangele iingozi ezifihlakeleyo ezifana nomlilo, ukuqhuma.

Uvavanyo lwenziwe kwiqondo lobushushu le-ambient ye-20 ¡ã C ?? I-5 ¡ã C, kunye neeseli ezisetyenziselwa ukukhangela zibekwe kwisixhobo sokuvavanya, kwaye indawo enkulu yebhetri yahlatywa ngobungakanani obunqunywe kwangaphambili benaliti yensimbi engeyiyo i-vase. Indawo esembindini, uvavanyo lufuna ukuba ibhetri ayinakho ukuhlawula umlilo, hayi ukuqhuma. Emva kokuba uvavanyo lomlilo lufanisa ipakethe yebhetri okanye inkqubo ifakwe kwisithuthi sombane, isithuthi sombane siye saphakama ngokukhawuleza xa isithuthi sombane siphezulu sokushisa komhlaba okanye ilangatye.

Ngexesha lovavanyo, jonga ipakethi yebhetri okanye inkqubo ngexesha elifutshane, ngenxa yeemeko ezahlukeneyo apho ubushushu bonyuka ngequbuliso. Kuvavanyo, imodyuli yebhetri ye-lithium ion esetyenziswa kwisixhobo sovavanyo ibekwe kwisixhobo sovavanyo esimiselwe kwangaphambili okanye kwintsimi, kwaye ubushushu benkcitho buya kuqhubeka buvutha, uvavanyo alufuni kuqhushumba, umlilo, ukutsha, kwaye akukho zithombo zomlilo zihlala. . Ukongeza, i-BYD iqhube ubushushu obuphantsi bokuqina, ubushushu obuphezulu bokuqina, ukuntywila kwamanzi etyuwa, ukuwa, kunye nokufumanisa ukungcangcazela.

Ngokuthelekisa ibhetri ye-Adudi kunye nenkqubo yokuvavanya, kuyaziwa ukuba i-BYD yamandla e-lithium ion ibhetri inokuthenjwa ngokuthembeka kunye nomgangatho wemveliso. I-BYD ibhetri yemoto yombane ecocekileyo ikhuselekile, ubomi bude ngokwaneleyo, malunga nabathengi, emva kokuqinisekisa ukhuseleko lwebhetri, kodwa ingqalelo ngakumbi kwi-mileage yokunyamezela kweemoto zombane ezicocekileyo, njani iikhilomitha ezingapheliyo zemoto yombane ecocekileyo? Apha sikhethe iimoto zombane ze-BYD ezisulungekileyo abathengi abaziqhelileyo, makhe sijonge ukuba ezi moto zineemayile ezingapheliyo. IYuan EV360, eyinkokeli yeSUV esulungekileyo yenqanaba le-100,000, ithengise iiyunithi ezingama-5008 ngoSeptemba walo nyaka.

Kwanele ukubona le moto ithandwa ngabathengi. Le moto ixhotyiswe ngebhetri ye-ion yamva nje-ntathu kwi-BYD. Umthamo webhetri ungama-43.

I-2kW / h, kwaye ubuninzi bamandla yi-146.27Wh / kg. Ubomi bebhetri edibeneyo yi-305km, kwaye kwi-60km / h isometrics, i-Mileage inokufikelela kwi-360km.

I-BYD E5 njengesithuthi sombane esiqhelekileyo somthengi, ukuthengiswa kwe-4052 ngoSeptemba, kwaye le moto nayo ixhotyiswe ngebhetri ye-lithium-ion ye-three-dimensional. Umthamo webhetri yokupakisha yi-60.48kw / h, kunye nobomi bayo bebhetri obubanzi 400M.

I-BYD Qin Proev isebenza njengemoto entsha esanda kudweliswa, amandla ebhetri yi-56.4kWh, kwaye ubomi bayo bebhetri obudibeneyo bufikelele kwi-420m. Inokubonwa kwezi modeli zithengiswa kakhulu ukuba i-BYD ixhoma ibhetri ye-lithium-ion ngokwemiqathango yobomi bebhetri ukuhlangabezana nabathengi.

Amagqabantshintshi oMhleli: Iinkampani ezininzi zebhetri kunye neenkampani zeemoto zilandela uxinaniso lwamandla oluphezulu ukuze zifumane inkxaso-mali eninzi, kodwa ngoyaba ezona mpawu zisisiseko zokhuseleko zebhetri ye-lithium-ion eguqukayo, kwaye iingozi ezithe gqolo zamva nje ziya kwenza i-lithium ion. Ukhuseleko lwebhetri luthatha kanye kwindawo yokujonga. Njengenkampani yokuqala e-China, inkampani yokuqala e-China, i-BYD isoloko igcina inqanaba eliphezulu lokhuseleko ngexesha lokuphuhliswa kwebhetri ye-lithium-ion.

Kwaye sinokubona zonke iiprobes ezinzima kwi-BYD kwinkqubo yokucubungula ibhetri, ehlala ibeka ukhuseleko lwabathengi kwindawo yokuqala. Ke ngoko, ukusetyenzwa kwe-BYD kuthembekile.