Njengoba ukwanda kokuthengiswa kanye nobunikazi bezimoto ezintsha zamandla kuyanda, izingozi zomlilo zezimoto ezintsha zamandla nazo zenzeka ngezikhathi ezithile. Ukwakhiwa kohlelo lokuphatha ukushisa kuyinkinga enkulu evimbela ukuthuthukiswa kwezimoto ezintsha zamandla. Ukuklama uhlelo lokuphatha ukushisa oluzinzile nolusebenzayo kubaluleke kakhulu ekuthuthukiseni ukuphepha kwezimoto ezintsha zamandla.
Ukumodela ukushisa kwebhethri le-Li-ion kuyisisekelo sokuphathwa kokushisa kwebhethri le-Li-ion. Phakathi kwazo, ukumodela okubonisa ukudlulisa ukushisa kanye nokumodela okubonisa ukukhiqiza ukushisa kuyizinto ezimbili ezibalulekile zokumodela ukushisa kwebhethri le-lithium-ion. Ezifundweni ezikhona zokumodela izici zokudlulisa ukushisa kwamabhethri, amabhethri e-lithium-ion abhekwa njenganokuqhuba ukushisa kwe-anisotropic. Ngakho-ke, kubaluleke kakhulu ukutadisha ithonya lezindawo ezahlukene zokudlulisa ukushisa kanye nezindawo zokudlulisa ukushisa ekushabalaleni kokushisa kanye nokuqhuba ukushisa kwamabhethri e-lithium-ion ukuze kuklanywe izinhlelo zokuphatha ukushisa ezisebenzayo nezithembekile zamabhethri e-lithium-ion.
Iseli lebhethri le-lithium iron phosphate elingu-50 A·ah lasetshenziswa njengento yocwaningo, futhi izici zalo zokuziphatha kokudlulisa ukushisa zahlaziywa ngokuningiliziwe, kwathi kwaphakanyiswa umqondo omusha wokuklama ukuphathwa kokushisa. Ukuma kweseli kuboniswe kuMfanekiso 1, futhi amapharamitha osayizi othize aboniswe kuThebula 1. Isakhiwo sebhethri le-Li-ion ngokuvamile sihlanganisa i-electrode enhle, i-electrode engemihle, i-electrolyte, i-separator, i-electrode enhle, i-electrode engemihle, i-center terminal, izinto zokufaka umswakama, i-valve yokuphepha, i-coefficient yokushisa enhle (PTC)(Isifudumezi Sokupholisa se-PTC/Isifudumezi Somoya se-PTC) i-thermistor kanye nekesi lebhethri. Isihlukanisi sibekwe phakathi kwezingcezu zepole ezinhle nezimbi, bese ingaphakathi lebhethri lakhiwa ngokugoqa noma iqembu lepole lakhiwa ngokulamination. Yenza lula isakhiwo seseli esinezingqimba eziningi sibe yinto yeseli enobukhulu obufanayo, bese wenza ukwelashwa okulinganayo kumapharamitha we-thermophysical weseli, njengoba kuboniswe kuMfanekiso 2. Izinto zeseli lebhethri zithathwa njengeyunithi ye-cuboid enezici ze-anisotropic thermal conductivity, kanti i-thermal conductivity (λz) eqondile eqondisweni lokulandwa isethwe ukuthi ibe ncane kune-thermal conductivity (λ x, λy) ehambisana nesiqondiso sokulandwa.
(1) Umthamo wokusabalalisa ukushisa weskimu sokuphatha ukushisa kwebhethri le-lithium-ion uzothinteka yimingcele emine: ukuhanjiswa kokushisa okuqondile endaweni yokushabalalisa ukushisa, ibanga lendlela phakathi kwesikhungo somthombo wokushisa kanye nendawo yokushabalalisa ukushisa, usayizi wendawo yokushabalalisa ukushisa yeskimu sokuphatha ukushisa, kanye nomehluko wokushisa phakathi kwendawo yokushabalalisa ukushisa kanye nendawo ezungezile.
(2) Uma ukhetha indawo yokushabalalisa ukushisa yokuklama ukuphathwa kokushisa kwamabhethri e-lithium-ion, uhlelo lokudlulisa ukushisa oluseceleni lwento yocwaningo ekhethiwe lungcono kunehlelo lokudlulisa ukushisa olusezansi, kodwa kumabhethri asikwele anobukhulu obuhlukene, kuyadingeka ukubala amandla okushabalalisa ukushisa ezindaweni ezahlukene zokushabalalisa ukushisa ukuze kutholakale indawo engcono kakhulu yokupholisa.
(3) Le fomula isetshenziselwa ukubala nokuhlola amandla okushisa, kanti ukulingisa ngezinombolo kusetshenziswa ukuqinisekisa ukuthi imiphumela iyahambisana ngokuphelele, okubonisa ukuthi indlela yokubala iyasebenza futhi ingasetshenziswa njengereferensi lapho kuklanywa ukuphathwa kokushisa kwamaseli ayisikwele.I-BTMS)
Isikhathi sokuthunyelwe: Ephreli-27-2023
