Isishwankathelo:

I-Crush inzima kakhulueqhelekileyouvavanyo lokuqinisekisa ukhuseleko ciills, ukulinganisa ukungqubana kwe-ciillsokanye imveliso yokugqibelaskusetyenziso lwemihla ngemihla.Kukho iindidi ezimbini ngokubanzityumzaiimvavanyo: flattyumzakwaye ngokuyinxenyetyumza.Xa kuthelekiswa neflethityumza, inxalenyeukuhlengaokubangelwa yi-indenter engqukuva okanye cylindrical kusenokwenzeka ukuba kubangeleiseli engasebenziyo.Okukhona i-indenter ibukhali, kokukhona kugxininise ngakumbi uxinzelelo kumbindi wesakhiwo sebhetri ye-lithium, kokukhona ukugqabhuka okunzulu kwangaphakathi.undoqo, okuya kubangela ukuguqulwa kunye nokufuduka kwengundoqo, kwaye kukhokelela kwimiphumo emibi njengokuvuza kwe-electrolyte okanye nomlilo.Ngoko kwenzeka njanityumzakhokelela kwiukucimakwe cell? Aphaukwazisa ulwakhiwo lwangaphakathi evolution yondoqo kuvavanyo lwendawo extrusion.

Ukutyumzainkqubo:

• Amandla okucudisa asetyenziswa kwi-enclosure yeseli kuqala, kwaye i-enclosure deforms.Amandla ke akhutshelwe ngaphakathi ebhetrini, kwaye indibano yeseli nayo iqala ukonakala.
• Ngokunyanzeliswa okuqhubekayo kwentloko yokutyumza, i-deformation iyanda kwaye i-localization yenziwa.Kwangaxeshanye, isithuba somaleko phakathi komgangatho ngamnye we-electrode sifinyezwa kancinci kancinci.Ngaphantsi koxinzelelo oluqhubekayo, umqokeleli wangoku ugobile kwaye ukhubazekile, kwaye iibhendi zokucheba zenziwe.Xa i-deformation yezinto ze-electrode ifikelela kumda, i-electrode material iya kuvelisa ukuqhekeka.
• Ngokunyuka kwe-deformation, ukuqhekeka ngokuthe ngcembe kwanda kumqokeleli wangoku, oya kukrazulwa kwaye avelise i-ductile fracture.Ukongeza, ukuqhekeka kweradial kwandisiwe ngenxa yokwanda koxinzelelo kunye nokufuduka kweradial.
• Okwangoku, amandla e-extrusion ayaqhubeka nokucinezela iseli, ebangela ukuba ngaphezulu kwe-electrode layers ichaphazeleke, nto leyo ekhokelela ekwandeni kwendawo yokucheba, utshintsho kwi-angle yokuthambekela (45 °), kunye nokwandiswa ngakumbi koluhlu lwendawo yokucheba.
• Ekugqibeleni, njengoko idiaphragm iqhubeka isoluliwe yaye ijijeka, iintanda ziye kufikelela kwidiaphragm.Xa ifika kwindawo yokucima, i-diaphragm ikrazukile kwaye i-electrodes ekufutshane idibana, yenze i-short-circuit yangaphakathi.Ngeli xesha, i-short-circuit current enkulu iveliswa kwinqanaba le-short-circuit point, ekhokelela ekufudumeni okukhulu kunye nokunyuka ngokukhawuleza kweqondo lokushisa, okuya kubangela ukuphendula kwecala ngaphakathi kweseli kwaye ekugqibeleni ukusetyenziswa kakubi kwe-thermal kunokwenzeka.

Isishwankathelo:

Uvavanyo lokutyumza luhlobo lokuxhatshazwa koomatshini.Ukusetyenziswa kakubi komatshini kuyingozi yokhuseleko olungenakuphepheka ekusebenziseni imihla ngemihla iibhetri ze-lithium-ion, ezinokubangela ukuphuka kwe-diaphragm kwaye kubangele isiphaluka esifutshane sangaphakathi.Nangona kunjalo, ngenxa yobume bentloko yokutyumza, ubungakanani bengcinezelo yokutyumza kunye namandla eseli ngokwawo ayahluka, iziphumo zovavanyo lokutyumza zihlala zihluka kakhulu.Ukuphuculwa kwezinto zeseli okanye ulwakhiwo luyafuneka ukuthintela ukucinywa kweseli eziswa luvavanyo lokutyumza kangangoko kunokwenzeka.Ngokomzekelo, ukusetyenziswa kwe-diaphragm ekhuselekileyo, i-ductile okanye ukuphuculwa kokusebenza kokutshatyalaliswa kobushushu kweseli kunokuthintela kakhulu ukusetyenziswa kakubi kwe-thermal xa i-short-circuit yangaphakathi isenzeka.