Kwinkqubo yokuvelisa iibhetri ze-lithium-ion, inkqubo yokugqoka, njengekhonkco eliphambili, ichaphazela ngokuthe ngqo ukusebenza kunye nokhuseleko lweebhetri. Ukuzinza kweqonga lokulawula ukunyakaza komatshini wokugquma ibhetri ye-lithium idlala indima ecacileyo ekuchanekeni kwengubo. I-Granite kunye nentsimbi etyhidiweyo, njengezinto ezisetyenziswa ngokuqhelekileyo zeplatifti, umehluko ekuzinzeni kwabo kwe-dimensional uye watsala ingqalelo enkulu. Eli nqaku liza kuhlalutya nzulu uphuculo olubalulekileyo lozinzo lwe-dimensional yegranite xa kuthelekiswa nentsimbi ekhandiweyo kwiqonga lokulawula intshukumo yeematshini zokugquma ibhetri ye-lithium ngokusebenzisa iipropati zempahla, idatha yovavanyo kunye namatyala asebenzayo.
Iimpawu zezinto eziphathekayo zimisela isiseko sozinzo
Intsimbi yentsimbi, njengesixhobo semveli soshishino, yayikhe yasetyenziswa ngokubanzi kwibala lamaqonga okulawula intshukumo ngenxa yokusebenza kwayo okugqwesileyo kunye neenzuzo zeendleko. Nangona kunjalo, izinto ezenziwe ngentsimbi zineziphene zendalo. Isakhiwo sayo sangaphakathi siqulethe inani elikhulu le-graphite ye-flake, elingana nokuqhekeka kwangaphakathi kwaye iya kunciphisa ukuqina kwezinto eziphathekayo. Okwangoku, i-coefficient yokwandiswa kwe-thermal ye-iron cast iphezulu, malunga ne-10-12 × 10⁻⁶/℃. Ngaphantsi kokuqokelelwa kobushushu obuveliswa ngumsebenzi wexesha elide le-lithium yokugqoka ibhetri, ixhomekeke kwi-thermal deformation. Ukongeza, kukho ukuphoswa koxinzelelo ngaphakathi kwentsimbi. Ngokuhamba kwexesha, ukukhutshwa koxinzelelo kuya kubangela utshintsho olungenakuguqulwa kwisayizi yesikhulumi, esichaphazela ukuchaneka kwengubo.
I-Granite yimathiriyeli yendalo eyenziwe ngeenkqubo zejoloji kumakhulu ezigidi zeminyaka. Ubume bayo bangaphakathi bekristale buxinene kwaye bufana, kwaye inozinzo oluphezulu lwendalo. I-coefficient yokwandiswa komgca we-granite yi-0.5-8 × 10⁻⁶/℃ kuphela, eyi-1/2-1/3 yentsimbi etyhidiweyo, kwaye ayinaluvelwano ngokugqithisileyo kutshintsho lobushushu. Okwangoku, i-granite inzima kwi-texture, inamandla okucindezelayo ukuya kwi-1,050-14,000 yeekhilogram nge-square centimeter. Iyakwazi ukumelana ngempumelelo neempembelelo zamandla angaphandle kunye nokungcangcazela, ukubonelela ngesiseko esiqinileyo nesizinzileyo seqonga lokulawula ukunyakaza. Kukho phantse akukho xinzelelo olushiyekileyo ngaphakathi kuyo, kwaye aluyi kubangela utshintsho lwe-dimensional ngenxa yokukhululwa koxinzelelo, ukuqinisekisa ukuzinza komgangatho weqonga ukusuka kwisiseko sezinto eziphathekayo.
Idatha yovavanyo iqinisekisa umahluko wokusebenza
Ukuthelekisa ngokubonakalayo ukungafani kozinzo lwe-dimensional phakathi kwegranite kunye nentsimbi etyhidiweyo, iqela lophando lenze uvavanyo olukhethekileyo. Iiplatifti ezimbini zokulawula ukunyakaza kwe-lithium umatshini wokugquma ibhetri yenkcazo efanayo ikhethiwe, yenziwe ngegranite kunye nentsimbi ephosiweyo ngokulandelanayo, kwaye yavavanywa phantsi kweemeko ezifanayo zokusingqongileyo. Uvavanyo lufanise imeko yokwenyani yokusebenza yomatshini wokugquma ibhetri ye-lithium. Ngokuqhuba ngokuqhubekayo izixhobo, utshintsho lobungakanani beqonga ngamaxesha ahlukeneyo abekwe esweni.
Iziphumo zovavanyo zibonisa ukuba emva kokusebenza ngokuqhubekayo kwiiyure ezingama-24, ngenxa yobushushu obuveliswa kukusebenza kwesixhobo, ubushushu bomphezulu weqonga lezinto ezityhidiweyo lenyuke malunga ne-15℃, okubangele ukwanda kwe-0.03mm kumda wecala lobude beqonga. Ngaphantsi kweemeko ezifanayo, ukuhluka kobukhulu beqonga legranite liphantse lingabalulekanga, kwaye ubungakanani bayo bokuguquguquka kobungakanani bungaphantsi kwe-0.005mm. Emva kweeyure ze-1000 zeemvavanyo zokuguga kwexesha elide, ngenxa yokukhululwa koxinzelelo lwangaphakathi kunye nokuqokelela kwe-thermal deformation, impazamo ye-flatness yeplatifomu yensimbi eyandisiweyo yanda ukusuka kwi-0.01mm yokuqala ukuya kwi-0.05mm. Iphutha le-flatness yeqonga legranite lihlala ligcinwe ngaphakathi kwe-0.015mm, kwaye inzuzo yokuzinza kwe-dimensional ibonakala.
Impumelelo ebalaseleyo kwizicelo ezibonakalayo
Kweyona mveliso yeshishini elikhulu lokuvelisa ibhetri ye-lithium, iiplatifti zokulawula iintshukumo zentsimbi zakhe zasetyenziswa. Njengoko ixesha lokusebenza lesixhobo lisanda, ukuchaneka kokugquma kwehle ngokuthe ngcembe, okubangele ukutyeba okungalinganiyo kokutyabeka, ukungaguquguquki kakuhle kwamaphepha e-electrode ebhetri, kunye nezinga lemveliso enesiphene ukuya kutsho kwi-8%. Ukusombulula le ngxaki, ishishini latshintsha amaqonga olawulo lwentshukumo yezinye izixhobo ngezinto zegranite.
Emva kokutshintshwa, ukuzinza kwe-dimensional kwesixhobo kuye kwaphuculwa kakhulu. Ngexesha lomjikelezo weenyanga ezintandathu zokuvelisa, umatshini wokugquma usebenzisa iqonga legranite lihlala ligcina impazamo yobunzima bokwambathisa ngaphakathi kwe ± 2μm, kwaye izinga lemveliso enesiphene lancitshiswa kakhulu laya kutsho ngaphantsi kwe-3%. Ngeli xesha, njengoko amaqonga egranite engadingi uhlengahlengiso oluchanekileyo rhoqo kunye nokugcinwa njengamaqonga entsimbi, asindisa amashishini isixa esibalulekileyo seendleko zokugcina izixhobo kunye nexesha lokuphumla minyaka le, kwaye anyuse impumelelo yemveliso ngaphezulu kwe-15%.
Ukuqukumbela, ekusetyenzisweni kweqonga lokulawula ukunyakaza koomatshini bokugquma ibhetri ye-lithium, igranite, eneempawu zayo ezibalaseleyo, igqithisa kakhulu intsimbi ephonsiweyo ngokwemiqathango yokuzinza komdimensional. Kungakhathaliseki ukuba kumbono wezinto eziphathekayo, idatha yovavanyo, okanye imiphumo yesicelo esisebenzayo, i-granite inika isiqinisekiso esithembekileyo sokuchaneka okuphezulu kunye nokuveliswa okuzinzile kweenkqubo zokugubungela ibhetri ye-lithium. Ngokuphuculwa okuqhubekayo kweemfuno zomgangatho wemveliso kwishishini lebhetri ye-lithium, iiplatifomu zokulawula intshukumo ezenziwe ngegranite zibophelelekile ukuba zibe lukhetho oluqhelekileyo kwishishini.
Ixesha lokuposa: May-22-2025