Analysis of Causes of Temperature Loss of Dynamic Lithium Battery

Umbhali :Iflowpower-UMboneleli weSikhululo saMandla esiphathwayo

ingxaki ukhuseleko ibhetri lithium ezitshintshayo lushwankathelwe, ibizwa ngokuba out-of thermal ulawulo, nto leyo kulawulwa emva kokuba lobushushu ethile, yaye amaqondo obushushu liyanyuka, kwaye ke dubulo ziya kutshiswa. Ebilayo, kwentengo, elifutshane-wesiphaluka, yokungqubana, njl izinto ezininzi ezibalulekileyo ezibangela out-of thermal kolawulo iibhetri Lithium olutshintshayo.

(1) nobushushu ilahleko aqala ubushushu ebangela oonobangela olutshintshayo ibhetri lithium nobushushu kukhetho lwe ibhetri kunye noyilo ngqiqweni wobushushu, okanye iqondo lobushushu ibhetri ebangela ubushushu ibhetri, kwaye Isidibanisi cable evakalala, kwaye kufuneka zonganyelwe ukususela kuyilo ibhetri kunye nolawulo bebhetri. iinkalo ezimbini ukuyisombulula. Ukususela angle kuyilwe izinto bebhetri, oko kuphuhliswa ukuthintela ngaphandle thermal yolawulo, ukuvimbela indlela out-of thermal lokulawula; ngezindlela zolawulo ibhetri, uyakwazi ukuchaza Ibanga ubushushu ezahlukileyo zithetha kumanqanaba zokhuseleko eyahlukileyo, oko kuye kwalungiswa alarm.

(2) ndingamcinezeli kuvusa ilahleko ubushushu Kulo nyaka, isizathu sokuba sombane isiganeko umlilo ibhasi esulungekileyo kukuba ngaphandle wobushushu kolawulo 'umnyele yoyalo kukunqongophala kwenkqubo yolawulo ibhetri ngokwayo, nto leyo ebangela BMS ibhetri lukaThixo olukuye kwamandla kodwa Charge. Ukuphendula lo hlobo kwentengo, impendulo wokuqala ukufumana ukungaphumeleli umatshini sokutshajisa, leyo kusombululeka ngokuthi komsebenzi opheleleyo kumatshini yokutshaja; okwesibini, akukho ngqiqweni ukubona ulawulo ibhetri, ezifana akukho iliso ibhetri nganye. Kubalulekile ukuphawula ukuba kunye nokushwabana ibhetri, ukuvumelana phakathi neebhetri ezahlukeneyo kuya kuba kubi, ngoko ke ukutshaja ixesha elide kakhulu kusenokwenzeka ukuba kwenzeke.

Oku kufuneka kube ukulungelelana pack battery jikelele ukugcina pack bebhetri. Umzekelo, uthotho imiqulwana ibhetri ye kakhulu kwebhetri eqhelekileyo indlela pack dibaniso isetyenziswa kuqala, emva ekusombululeni ingxaki ukuvumelana monomer, ityala engcono iyafana amandla enye enkulu. Emva kwale efanayo, umthamo zikhule, kodwa kunqanda ukutshaja ixesha elide.

Ukuze kufikelelwe efanayo, kufuneka kubekho indlela ukwenza uqikelelo amandla monomer nganye. Ouyang Ming phezulu sibonisa, ukulinganisela zonke ubume pack Ibhetri kwenziwa ngokungqinelana yokufana curve Ukuvuya womserbia. Oko kukuthi, ukuqonda nje kwigophe ezibiza yomnye iibhetri monomer, ezinye ezigoso kufuneka ifane kuyo.

Ngotshintsho kwigophe, zingakotshwa malunga xaka, yaye ezi umahluko phakathi utshintsho curve kulula kubalwa. Ezinye monomers kungaba ibalwe ngokungqinelana umzimba owodwa. Ekubeni loo ndlela a, unako ukwenza intsalela ukuyondelelana okhankanywe ngasentla.

Kakade ke, eli algorithm ixesha elide kakhulu, ngendlela elula. (3) lwangaphakathi mfutshane-circuit kuvusa ilahleko ubushushu lolawulo iBoeing moya 787 umkhweli xa uyagxothwa ngenxa ukwanda ibhetri. Xa ukufumana unobangela wengozi, kufumaniseke ukuba kukho izinto ezintsimbini electrode kunye uvalo.

Nangona iingcali awukwazi kungqina ukuba waphuma thermal zolawulo kubangelwa besifunda emfutshane yangaphakathi, loo nto inokubangela ukuba, ngenxa yokuba ezinye izizathu zifumaneka, kwaye akukho ndlela mfutshane kwisekethe mfutshane. Battery mveliso ubumdaka, amasuntswana zesinyithi, kwaye ukubhobhoza, eJonga, kunye lithium lithium, njl, kunokwenzeka ukuba kwiziphaluka mfutshane lwangaphakathi.

Le circuit short intramine kade, kwaye ixesha elide kakhulu, kwaye andazi ukuba xa kuya kuba ngaphandle oshushu yolawulo. Ukuba ngaba uvavanyo luthi, awukwazi ukuphinda yokuqinisekisa. Okwangoku, iingcali zehlabathi ziye zafunyanwa inkqubo elifutshane yesekethe okubangelwa ubumdaka, bobabini kuphando.

Ukusombulula ingxaki yesekethe elifutshane zangaphakathi, kufuneka kuqala ukufumana abenzi ibhetri umgangatho ibhetri, khetha ibhetri kunye monomer ibhetri amandla; okwesibini ukuqikelela ukhuseleko circuit elifutshane, kufuneka ufumane eyodwa enye. Oku kuthetha ukuba iimpawu monomer kufuneka kufunyanwa, leyo kuqalwe ukuvumelana. Ibhetri ayingqinelani, kwa oku komelela lwangaphakathi awungqinelani, logama nje efumana monomer ukuba uhlobo embindini, uyakwazi ukwahlula ngayo.

Ngokukodwa, isekethe elinganayo yebhetri eqhelekileyo kunye nesiphaluka esilinganayo se-micro-short circuit, ifom ye-equation ngokwenene iyafana, kodwa i-monomer eqhelekileyo, iiparameters ze-micro-short single cells zitshintshile. Inokuphononongwa kwezi parameters ukubona ezinye zeempawu zazo kutshintsho lwesekethe emfutshane. Enye yeempawu ngumahluko onokubakho we-monomer yesekethe emfutshane, ethelekisa umahluko phakathi kokuchasana kwayo kwangaphakathi kunye nezinye iimonomers.

U-Ouyang Minggao wenze isindululo sokuba abasebenzi beR & D mabasebenzise imifuziselo ukwenza iimonomers. Emva kokulinganisa i-voltage kunye ne-current ye-monomer nganye, ukuchasana kwangaphakathi kwe-monomer nganye kunokubaluleka ngokusebenzisa ezi datha. Emva kokuba zonke iiparameters ze-monomer zonke ziqikelelwa, ngokuhambelana nokutshintshwa kweeparamitha, kunokumiselwa ukuba ngaba ukuhambelana kunotshintsho oluphawulekayo.

(4) Oomatshini ababangela ukungqubana kwelahleko yobushushu yindlela eqhelekileyo ebangela ilahleko yobushushu. UTesla ngokuphindaphindiweyo ingozi yomlilo yile sizathu. U-Ouyang Ming ophezulu uveze ukuba iYunivesithi yaseTsinghua isebenzisana neMIT ukuhlalutya iTesla kwingozi yokungqubana kwe-United States.

Ukuba ukulinganisa kuyangqubana elabhoratri, i-acupuncture ikufutshane. Ukusombulula ifuthe le-crash trigger kukwenza umsebenzi olungileyo kuyilo lokhuseleko lwebhetri. Kwaye oku kukuphuhlisa umntu ukuba aqonde kuqala inkqubo ye-thermal ngaphandle kolawulo.

Ngokuqhelekileyo, emva kokuba i-thermal ingalawulwa, iya kusasazeka phantsi. Umzekelo, kuya kubakho ukutshintshwa kobushushu emva kokulahleka kobushushu bokuqala, qalisa ukusasazeka, kwaye ke iqela lonke lifana nepeni. Ukuphendula kolu kuhanjiswa, imodeli inokusekwa, kubandakanywa ukunyuka kweqondo lokushisa eliphakathi, ukuveliswa kobushushu, ukuhanjiswa kobushushu, njl.

Yonke imodeli yokudibanisa i-thermoelectric ingasetyenziselwa ukusebenzisa imitha yobushushu ukwenza uhlalutyo lobungakanani obunxulumeneyo. Ngomzekelo wokusasazeka, abasebenzi be-R & D banokuyila indlela yokuthintela kunye nokucinezela, oku kufuneka kulayishwe. Nangona kunjalo, ukongezwa komgangatho we-heat-insulation layer akulula, kwelinye icala, umthamo ukhulu, kwaye umgca we-insulation uphikisana ne-insulation layer kunye nokupholisa.

Ezi ziingxaki ekufuneka zisonjululwe. Isishwankathelo, ngokwemiqathango yokwandiswa kwe-thermal ngaphandle kokulawula kunye nokuthintela, abasebenzi be-R & D kufuneka baqale kwiinkalo ezimbini zoyilo lokukhusela ukhuseleko kunye nokulawulwa kwebhetri.