Kwinkqubo yokwenziwa kweebhetri ze-lithium, umatshini wokugquma, njengesixhobo esiphambili, ukusebenza kwawo kwesiseko kuchaphazela ngokuthe ngqo ukuchaneka kokugquma kunye nomgangatho wemveliso yeebhetri ze-lithium. Ukwahluka kobushushu yinto ebalulekileyo echaphazela uzinzo lweematshini zokugquma. Umahluko ekuchaseni ubushushu phakathi kweziseko ze-granite kunye neziseko zesinyithi eziphosiweyo uye waba yinto ephambili ekuqwalaselweni kwezixhobo kwiinkampani zokwenza iibhetri ze-lithium.
I-coefficient yokwandiswa kobushushu: Inzuzo "yokungakhuseleki kobushushu" yegranite
I-coefficient yokwandiswa kobushushu imisela uzinzo lobukhulu bezinto xa ubushushu butshintsha. I-coefficient yokwandiswa kobushushu kwesiseko sesinyithi esityhidiweyo imalunga ne-10-12 × 10⁻⁶/℃. Kwimeko eqhelekileyo yokuguquguquka kobushushu kwiindawo zokusebenzela zokugquma iibhetri ze-lithium, notshintsho oluncinci lobushushu lunokubangela ukuguquguquka okukhulu kobukhulu. Umzekelo, xa ubushushu kwindawo yokusebenzela butshintshatshintsha nge-5℃, isiseko sesinyithi esityhidiweyo esiyimitha e-1 sinokukhula nge-50-60 μm kunye nokuguquguquka kokuncipha. Olu tshintsho luya kubangela utshintsho kumsantsa phakathi kwe-roller yokugquma kunye nephepha le-electrode, okubangela ubukhulu bokugquma obungalinganiyo kwaye emva koko kuchaphazele amandla kunye nokuhambelana kweebhetri ze-lithium.
Ngokwahlukileyo koko, i-coefficient yokwandiswa kobushushu besiseko segranite yi-(4-8) ×10⁻⁶/℃ kuphela, emalunga nesiqingatha sesinyithi esityhidiweyo. Phantsi kokuguquguquka okufanayo kobushushu be-5℃, ukuguquguquka kwesiseko segranite esibude bemitha e-1 yi-20-40 μm kuphela, kwaye utshintsho lobukhulu lunokungahoywa. Ngexesha lenkqubo yemveliso eqhubekayo yexesha elide, isiseko segranite sinokuhlala sizinzile, siqinisekisa indawo echanekileyo phakathi kwerola yokugquma kunye nephepha le-electrode, sigcina uzinzo lwenkqubo yokugquma, kwaye sibonelela ngesiqinisekiso esithembekileyo sokuveliswa kweebhetri ze-lithium ezihambelanayo kakhulu.
Ukuqhuba kobushushu: "Isithintelo sokukhusela ubushushu" uphawu lwegranite
Ukongeza kwiinguqu ezinobukhulu ezibangelwa kukwanda kobushushu, ukuhanjiswa kobushushu kwezinto kuchaphazela ukufana kokusasazwa kobushushu kwizixhobo. Isinyithi esitshisiweyo sinokuhanjiswa kobushushu okuhle. Xa ubushushu buveliswa ngaphakathi komatshini wokugquma ngenxa yokusebenza kwemoto, ukungqubana kwerola yokugquma, njl.njl., isiseko sesinyithi esitshisiweyo siya kuqhuba ubushushu ngokukhawuleza, nto leyo ebangela ukuba ubushushu bomphezulu wesiseko bunyuke kwaye bungasasazeki ngokulinganayo. Lo mahluko wobushushu uya kubangela uxinzelelo lobushushu kwisiseko, nto leyo eyandisa ukuguquguquka. Kwangaxeshanye, inokuchaphazela nokusebenza okuqhelekileyo kwezinzwa zokuchaneka ezijikelezileyo kunye nezixhobo zolawulo.
I-Granite ayisebenzi kakuhle ekufudumaleni, inomoya oshushu we-2.7-3.3W/ (m · K) kuphela, ophantsi kakhulu kunowentsimbi ephoswe kwi-40-60W/ (m · K). Ngexesha lokusebenza komatshini wokugquma, isiseko se-granite sinokuyithintela ngempumelelo indlela yokuqhuba ubushushu bangaphakathi, sinciphise ukuguquguquka kobushushu kumphezulu wesiseko kunye nokuveliswa koxinzelelo lobushushu. Nokuba umatshini wokugquma usebenza phantsi komthwalo omkhulu ixesha elide, isiseko se-granite sisenokugcina imeko yobushushu ezinzileyo, siphephe ukuguquguquka kwezixhobo kunye nokonakala kokusebenza okubangelwa bubushushu obungalinganiyo, kwaye sidale imeko yobushushu ezinzileyo kwinkqubo yokugquma.
Uzinzo phantsi komjikelo wobushushu: Amandla "okumelana nobushushu bexesha elide" egranite
Ukuveliswa kweebhetri ze-lithium kudla ngokufuna ukuba izixhobo zisebenze ngokuqhubekayo ixesha elide. Ngexesha lemijikelo yobushushu ephindaphindayo (njengokupholisa ebusuku kunye nokufudumeza emini), ukuzinza kwezinto ezisisiseko kubaluleke kakhulu. Phantsi kwesiphumo esiphindaphindayo sokwanda nokuncipha kobushushu, isiseko sesinyithi esityhidiweyo sithambekele ekuqhekekeni ngaphakathi, okubangela ukwehla kwamandla olwakhiwo kunye nokuchaphazela ubomi benkonzo yesixhobo. Idatha yophando efanelekileyo ibonisa ukuba emva kwemijikelo yobushushu eyi-1000 (enoluhlu lokutshintsha kobushushu lwe-20-40℃), ubunzulu bokuqhekeka komphezulu wesiseko sesinyithi esityhidiweyo bunokufikelela kwi-0.1-0.2mm.
Iziseko zegranite zinokumelana nokudinwa okuhle kakhulu ngenxa yesakhiwo sazo sekristale yangaphakathi esixineneyo. Phantsi kweemeko ezifanayo zovavanyo lokujikeleza kobushushu, isiseko segranite asibonakalisi mifantu icacileyo, kwaye ukuqina kwesakhiwo kugcinwa ixesha elide. Olu zinzo luphezulu phantsi kokujikeleza kobushushu lwenza isiseko segranite sihlangabezane neemfuno zokusebenza okuphezulu kunye nexesha elide zokuveliswa kwebhetri ye-lithium, okunciphisa ukugcinwa rhoqo kunye nexesha lokungasebenzi kwezixhobo okubangelwa ziingxaki zesiseko kunye nokuphucula ukusebenza kakuhle kwemveliso.
Ngokuchasene neemfuno ezingqongqo zokuchaneka nokuzinza kwemveliso yeebhetri ze-lithium, iziseko zegranite, ezinomlinganiselo ophantsi wokwandiswa kobushushu, ukuqhuba kobushushu okuphezulu kunye nokuzinza okugqwesileyo kokujikeleza kobushushu, ziphumelela kakhulu kuneziseko zesinyithi ezityhidiweyo ngokubhekiselele ekumelaneni nobushushu. Ukukhetha umatshini wokugquma ibhetri ye-lithium onesiseko segranite kunokuphucula ngempumelelo ukuchaneka kokugquma, kuqinisekise umgangatho weemveliso zebhetri ye-lithium, kunciphise umngcipheko wezixhobo ngexesha lenkqubo yemveliso, kwaye kube yinkxaso ebalulekileyo ekukhuthazeni uphuhliso lweshishini lebhetri ye-lithium ekusebenzeni okuphezulu.
Ixesha leposi: Meyi-21-2025