Kwinkqubo yokuvelisa iibhetri ze-lithium, umatshini wokugubungela, njengesixhobo esibalulekileyo, ukusebenza kwayo kwesiseko kuchaphazela ngokuthe ngqo ukuchaneka kokuchaneka kunye nomgangatho wemveliso yeebhetri ze-lithium. Ukuhluka kobushushu yinto ebalulekileyo echaphazela ukuzinza koomatshini bokugquma. Umahluko ekuchaseni ubushushu phakathi kweziseko zegranite kunye neziseko zentsimbi ziye zaba yingqwalasela ephambili yokukhethwa kwezixhobo kumashishini okuvelisa ibhetri ye-lithium.
I-Coefficient yokwandiswa kwe-thermal: I-"temperature immunity" inzuzo yegranite
I-coefficient yokwandiswa kwe-thermal inquma ukuzinza kwe-dimensional yezinto xa ubushushu buguquka. I-coefficient yokwandiswa kwe-thermal ye-cast iron base imalunga ne-10-12 × 10⁻⁶/℃. Kwimeko yokutshintsha kobushushu obuqhelekileyo kwiindibano zocweyo zokugquma ibhetri ye-lithium, kwanotshintsho oluncinci lobushushu lunokubangela uguquko olubalulekileyo. Umzekelo, xa iqondo lobushushu kwindawo yokusebenzela liguquguquka nge-5℃, isiseko sentsimbi esiziimitha ezi-1 ubude sinokungena kwi-50-60 μm yokwandiswa kunye noguquko lwe-contraction. Olu tshintsho luya kubangela utshintsho kwisithuba phakathi kwe-coating roller kunye neshidi le-electrode, okukhokelela kubukhulu obungalinganiyo bokugquma kwaye emva koko buchaphazele umthamo kunye nokuhambelana kweebhetri ze-lithium.
Ngokwahlukileyo, i-coefficient yokwandiswa kwe-thermal yesiseko se-granite kuphela (4-8) × 10⁻⁶/℃, malunga nesiqingatha sentsimbi. Ngaphantsi kweqondo lokushisa elifanayo le-5 ℃, i-deformation ye-1-meter-long-granite base yi-20-40 μm kuphela, kwaye utshintsho lwe-dimensional luphantse lungahoywa. Ngethuba lenkqubo yokuvelisa ixesha elide, isiseko se-granite sinokuhlala sigcina isimo esizinzileyo, siqinisekisa indawo echanekileyo phakathi kwe-coating roller kunye ne-electrode sheet, ukugcina ukuzinza kwenkqubo yokugqoka, kunye nokubonelela ngesiqinisekiso esithembekileyo sokuveliswa kweebhetri ze-lithium ezihambelana kakhulu.
I-Thermal conductivity: "Isithintelo sokugquma ubushushu" uphawu lwegranite
Ukongeza kwiinguqu ze-dimensional ezibangelwa ukwanda kwe-thermal, i-thermal conductivity yezinto eziphathekayo nayo ichaphazela ukufana kokusabalalisa ukushisa kwizixhobo. Intsimbi yokuphosa ine-conductivity efanelekileyo ye-thermal. Xa ubushushu buveliswa ngaphakathi kumatshini wokugquma ngenxa yokusebenza kwemoto, ukungquzulana kwe-coating roller, njl., isiseko sentsimbi siya kuqhuba ngokukhawuleza ubushushu, okubangela ukuba ubushushu bomhlaba besiseko bunyuke kwaye busasazwe ngokulinganayo. Lo mahluko weqondo lokushisa uya kubangela uxinzelelo lwe-thermal kwisiseko, ukuqinisa ngakumbi ukuguqulwa. Ngexesha elifanayo, kunokuchaphazela nokusebenza okuqhelekileyo kweenzwa ezichanekileyo ezijikelezayo kunye namacandelo okulawula.
I-Granite yi-conductor engafanelekanga yokushisa, kunye ne-thermal conductivity ye-2.7-3.3W / (m · K) kuphela, ephantsi kakhulu kune-iron cast kwi-40-60W / (m · K). Ngethuba lokusebenza komatshini wokugubungela, isiseko se-granite sinokuthintela ngokufanelekileyo ukuqhutyelwa kokushisa kwangaphakathi, ukunciphisa ukuguquguquka kweqondo lokushisa kwisiseko sesiseko kunye nesizukulwana soxinzelelo lwe-thermal. Nangona umatshini wokugquma usebenza phantsi komthwalo ophezulu ixesha elide, isiseko segranite sisenako ukugcina isimo sokushisa esizinzileyo, ukuphepha ukuguqulwa kwezixhobo kunye nokuthotywa kokusebenza okubangelwa ukushisa okungalinganiyo, kunye nokudala indawo yokushisa ezinzileyo yenkqubo yokugubungela.
Uzinzo phantsi kwebhayisekile yobushushu: "Ukumelana nobushushu bexesha elide" isakhono segranite
Ukuveliswa kweebhetri ze-lithium ngokuqhelekileyo kufuna ukuba izixhobo zisebenze ngokuqhubekayo ixesha elide. Ngexesha lokujikeleza kweqondo lokushisa rhoqo (njengokupholisa ebusuku kunye nokufudumeza emini), ukuzinza kwezinto ezisisiseko kubaluleke kakhulu. Ngaphantsi kwempembelelo ephindaphindiweyo yokwandiswa kwe-thermal kunye nokunciphisa, isiseko sensimbi esityhidiweyo sixhomekeke ekukhathaleni ukuqhekeka ngaphakathi, okubangelwa ukuhla kwamandla okwakhiwa kunye nokuchaphazela ubomi benkonzo yezixhobo. Idatha yophando echaphazelekayo ibonisa ukuba emva kwemijikelo ye-1000 yokushisa (kunye noluhlu oluhlukeneyo lobushushu lwe-20-40 ℃), ubunzulu be-crack surface yesiseko sentsimbi sinokufikelela kwi-0.1-0.2mm.
Iziseko zeGranite zinokumelana nokudinwa okugqwesileyo ngenxa yobume bawo obuxineneyo bekristale yangaphakathi. Ngaphantsi kweemeko ezifanayo zovavanyo lokuhamba ngebhayisikile, isiseko segranite asibonakalisi iintanda ezicacileyo, kwaye ukuthembeka kwesakhiwo kugcinwa ixesha elide. Olu uzinzo oluphezulu phantsi kwebhayisikile yeqondo lokushisa lwenza ukuba isiseko segranite sihlangabezane neemfuno eziphezulu kunye nexesha elide lokusebenza kwemveliso yebhetri ye-lithium, ukunciphisa ukugcinwa rhoqo kunye nexesha lokunciphisa izixhobo ezibangelwa iingxaki zesiseko kunye nokuphucula ukusebenza kakuhle kwemveliso.
Ngokuchasene nemvelaphi yeemfuno ezingqongqo zokuchaneka kunye nokuzinza kwi-lithium yokuvelisa ibhetri, iziseko ze-granite, kunye ne-coefficient ephantsi yokwandiswa kwe-thermal, i-conductivity ephezulu ye-thermal kunye nokuqina okubalaseleyo kokuhamba ngebhayisikile, ngokugqithiseleyo idlula kakhulu iziseko zentsimbi ngokuxhathisa ubushushu. Ukukhetha umatshini wokugquma ibhetri ye-lithium kunye nesiseko segranite kunokuphucula ngokufanelekileyo ukuchaneka kokwambathisa, ukuqinisekisa umgangatho weemveliso zebhetri ye-lithium, ukunciphisa umngcipheko wezixhobo ngexesha lenkqubo yokuvelisa, kwaye ube yinkxaso ebalulekileyo yokukhuthaza uphuhliso loshishino lwebhetri ye-lithium ukuya ekusebenzeni okuphezulu.
Ixesha lokuposa: May-21-2025