Ngokukhula kokuthengiswa kanye nobunikazi bezimoto ezintsha ezisebenza ngamandla, izingozi zomlilo zezimoto ezisebenza ngamandla amasha nazo zenzeka ngezikhathi ezithile.Ukwakhiwa kwesistimu yokulawula ukushisa kuyinkinga yebhodlela evimbela ukuthuthukiswa kwezimoto ezintsha zamandla.Ukuklama uhlelo lokulawula ukushisa okuzinzile nolusebenzayo kubaluleke kakhulu ekwenzeni ngcono ukuphepha kwezimoto ezintsha ezisebenza ngamandla.
Ukumodela okushisayo kwebhethri ye-Li-ion kuyisisekelo sokuphathwa kokushisa kwebhethri ye-Li-ion.Phakathi kwazo, imodeli yesici sokudlulisa ukushisa kanye nesici sokukhiqiza ukushisa yizici ezimbili ezibalulekile zemodeli yebhethri ye-lithium-ion.Ezifundweni ezikhona zokwenza imodeli yezimpawu zokudlulisa ukushisa kwamabhethri, amabhethri e-lithium-ion abhekwa njengane-anisotropic thermal conductivity.Ngakho-ke, kubaluleke kakhulu ukutadisha umthelela wezikhundla ezihlukene zokudlulisa ukushisa kanye nezindawo zokudlulisa ukushisa ekushiseni kokushisa kanye ne-thermal conductivity yamabhethri e-lithium-ion ukuze kuklanywe izinhlelo ezisebenza kahle nezithembekile zokulawula ukushisa kwamabhethri e-lithium-ion.
Iseli yebhethri ye-lithium iron phosphate engu-50 A·h yasetshenziswa njengento yocwaningo, futhi izici zayo zokuziphatha zokudlulisa ukushisa zahlaziywa ngokuningiliziwe, futhi kwahlongozwa umbono omusha wokuphathwa kokushisa.Ukuma kweseli kuboniswe ku-Figure 1, futhi imingcele yesayizi ethize iboniswa kuThebula 1. Isakhiwo sebhethri ye-Li-ion ngokuvamile sihlanganisa i-electrode enhle, i-electrode engalungile, i-electrolyte, isihlukanisi, ukuhola kwe-electrode enhle, ukuhola okungalungile kwe-electrode, ukuphela kwesikhungo, I-insulating material, i-valve yokuphepha, izinga lokushisa elihle (i-PTC)(I-PTC Coolant heater/I-PTC Air heater) i-thermistor nekesi lebhethri.Isihlukanisi sihlukaniswa phakathi kwezingcezu zezigxobo eziphozithivu nezinegethivu, futhi umnyombo webhethri kwakheka ngokusonteka noma iqembu lezigxobo lakhiwa nge-lamination.Yenza kube lula ukwakheka kwamaseli ezendlalelo eziningi kube into yeseli enosayizi ofanayo, futhi wenze ukwelashwa okufanayo kumapharamitha we-thermophysical weseli, njengoba kuboniswe kuMfanekiso 2. Into yeseli yebhethri ithathwa njengeyunithi ye-cuboid enezici ze-anisotropic thermal conductivity. , kanye ne-thermal conductivity ( λz) perpendicular to stacking direction is set to be smaller than thermal conductivity ( λ x, λy ) ngokuhambisana nesikhombisi-ndlela sokupakisha.
(1) Amandla okukhipha ukushisa kwe-lithium-ion ibhethri ye-thermal scheme izothinteka yimingcele emine: i-thermal conductivity perpendicular to the heat dissipation surface, ibanga lendlela phakathi kwesikhungo somthombo wokushisa kanye nendawo yokukhipha ukushisa, usayizi wendawo yokukhipha ukushisa yohlelo lokuphatha okushisayo, kanye nomehluko wezinga lokushisa phakathi kwendawo yokukhipha ukushisa nendawo ezungezile.
(2) Lapho ukhetha indawo yokushisa ukushisa yokwakhiwa kokulawula okushisayo kwamabhethri e-lithium-ion, uhlelo lokudlulisa ukushisa ohlangothini lwento ekhethiwe yocwaningo lungcono kunohlelo lokudlulisa ukushisa okungaphansi, kodwa kumabhethri ayisikwele anosayizi abahlukene, kuyadingeka. ukubala amandla okukhipha ukushisa kwezindawo ezihlukene zokulahla ukushisa ukuze Kutholwe indawo engcono kakhulu yokupholisa.
(3) Ifomula isetshenziselwa ukubala nokuhlola amandla okukhipha ukushisa, futhi ukulingiswa kwezinombolo kusetshenziselwa ukuqinisekisa ukuthi imiphumela ihambisana ngokuphelele, okubonisa ukuthi indlela yokubala iyasebenza futhi ingasetshenziswa njengereferensi lapho kuklanywa ukuphathwa kwezinga lokushisa. amaseli ayisikwele. (I-BTMS)
Isikhathi sokuthumela: Apr-27-2023
