Ezweni elincane kakhulu lamabhethri e-lithium, kukhona "umqaphi ongabonakali" obalulekile - umhlukanisi, owaziwa nangokuthi i-membrane yebhethri. Isebenza njengengxenye eyinhloko yamabhethri e-lithium namanye amadivayisi e-electrochemical. Eyenziwe ngokuyinhloko nge-polyolefin (i-polyethylene PE, i-polypropylene PP), amanye ama-separators aphezulu nawo asebenzisa izembozo ze-ceramic (isb., i-alumina) noma izinto ezihlanganisiwe ukuze kuthuthukiswe ukumelana nokushisa, okwenza kube imikhiqizo evamile yefilimu enezimbobo. Ukuba khona kwayo kusebenza njenge-"firewall" eqinile, ehlukanisa ngokomzimba ama-electrode amahle nangalungile ebhethri le-lithium ukuvimbela ama-short circuits, ngenkathi esebenza ngesikhathi esifanayo njenge-"umgwaqo omkhulu we-ion," okuvumela ama-ion ukuthi ahambe ngokukhululeka futhi aqinisekise ukusebenza kwebhethri okuvamile.
Ubukhulu be-grammage kanye nobukhulu be-separator, okubonakala sengathi kujwayelekile, kufihla “izimfihlo” ezijulile. Ubukhulu be-grammage (ubuningi be-areal) bezinto zokuhlukanisa ibhethri le-lithium abubonisi nje ngokungaqondile ukwakheka kwama-membrane anobukhulu obufanayo kanye nemininingwane yezinto zokusetshenziswa kodwa futhi buhlobene eduze nobukhulu bezinto zokusetshenziswa ze-separator kanye nemininingwane yobukhulu bayo. Ubukhulu be-grammage buthinta ngqo ukumelana kwangaphakathi, ikhono lokukala, ukusebenza komjikelezo, kanye nokuphepha kwamabhethri e-lithium.
Ubukhulu besihlukanisi bubaluleke kakhulu ekusebenzeni nasekuphepheni kwebhethri iyonke. Ukufana kobukhulu kuyisilinganiso esiqinile sokulawula ikhwalithi ngesikhathi sokukhiqizwa, kanye nokuphambuka okudingekayo ukuze kuhlale ngaphakathi kwezindinganiso zemboni kanye nokubekezelelana kokuhlanganiswa kwebhethri. Isihlukanisi esincane sinciphisa ukumelana kwama-ion e-lithium axazululiwe ngesikhathi sokuthutha, sithuthukisa ukuqhuba kwe-ionic kanye nokwehlisa impedance. Kodwa-ke, ukuncipha ngokweqile kwenza buthaka ukugcinwa koketshezi kanye nokufakwa kwe-elekthronikhi, okuthikameza ukusebenza kwebhethri kabi.
Ngenxa yalezi zizathu, ukujiya kanye nokuhlolwa kobuningi be-areal kwe-separator kube yizinyathelo ezibalulekile zokulawula ikhwalithi ekukhiqizweni kwebhethri le-lithium, okunquma ngqo ukusebenza kwebhethri, ukuphepha, kanye nokuvumelana. Ubuningi be-areal obuphezulu kakhulu buvimbela ukuthuthwa kwe-lithium-ion, kunciphisa ikhono lesilinganiso; ubuningi be-areal obuphansi kakhulu bulimaza amandla omshini, bubeke engcupheni yokuqhekeka kanye nezingozi zokuphepha. Abahlukanisi abancane kakhulu bafaka engcupheni ukungena kwe-electrode, okubangela izifunda ezimfushane zangaphakathi; abahlukanisi abajiyile kakhulu bandisa ukumelana kwangaphakathi, kwehlisa ubuningi bamandla kanye nokusebenza kahle kokukhipha ishaja.
Ukuze kuxazululwe lezi zinselele, i-Dacheng Precision yethula i-X-ray areal density (ubukhulu) yayo yokulinganisa ubungako bayo!
#Isilinganiso sokulinganisa ubukhulu be-X-ray (ukujiya)
Le divayisi ifanele ukuhlola izinto ezahlukahlukene, kufaka phakathi izinto zobumba kanye ne-PVDF, ngokunemba kokulinganisa okuphindaphindwayo kwenani langempela × 0.1% noma ±0.1g/m², futhi ithole isitifiketi sokukhululwa emisebeni ukuze isebenze ngokuphephile. Isofthiwe yayo ifaka amamephu okushisa wesikhathi sangempela, ukubalwa kokulinganisa okuzenzakalelayo, imibiko yekhwalithi yokugoqa, i-MSA (Ukuhlaziywa Kwesistimu Yokulinganisa) ngokuchofoza okukodwa, kanye neminye imisebenzi ekhethekile, okuvumela ukwesekwa kokulinganisa okunembile okuphelele.
# Isixhumi esibonakalayo sesofthiwe
#Imephu yokushisa yesikhathi sangempela
Uma sibheka phambili, i-Dacheng Precision izozinza ku-R&D, iqhubekela phambili emingceleni yezobuchwepheshe ejulile futhi ihlanganise ukusungula izinto ezintsha kuyo yonke imikhiqizo kanye nensizakalo. Sisebenzisa ubuchwepheshe obusezingeni eliphezulu, sizohlola izixazululo zokulinganisa ezihlakaniphile nezinembile, sakhe izinhlelo zesevisi yobuchwepheshe ezisebenzayo nezithembekile kumakhasimende ethu. Ngobuciko bokwakha imikhiqizo yekhwalithi ephezulu kanye namandla okushayela ukusungula izinto ezintsha, sizibophezele ekuqhubekiseleni phambili imboni yebhethri le-lithium enkathini entsha yentuthuko yekhwalithi ephezulu!
Isikhathi sokuthunyelwe: Meyi-06-2025