Ibhethri elisebenza kahle kakhulu:Ibhethri ye-lithium-ionyakhiwe izingxenye ezine eziyinhloko: impahla ye-electrode ekhangayo, impahla ye-electrode engalungile, isihlukanisi, ne-electrolyte.Phakathi kwabo, isihlukanisi siyingxenye ebalulekile yangaphakathiamabhethri e-lithium-ion.Nakuba ingahlanganyeli ngokuqondile ekuphenduleni kwe-electrochemical, idlala indima ebalulekile ekusebenzeni kwebhethri.Akuthinti kuphela umthamo, ukusebenza komjikelezo kanye nokushajwa kanye nokukhipha ukuminyana kwamanje kwebhethri, kodwa futhi kuhlobene nokuphepha nempilo yebhethri.ibhethri.Isihlukanisi sigcina ukusebenza kahle kwebhethri nokusebenza ngokunikeza iziteshi ze-ion conduction, ukuvimbela ukuxubana kwe-electrolyte, nokuhlinzeka ngokusekela ngomshini.I-ion conductivity yesihlukanisi ithinta ngokuqondile ukushaja nokukhipha isivinini kanye nokusebenza kahle kwebhethri.I-ion conductivity engcono ingathuthukisa ukuminyana kwamandla ebhethri.Ngaphezu kwalokho, ukusebenza kwe-electrolyte isolation yesihlukanisi kunquma ukuphepha kwebhethri.Ukuhlukaniswa okusebenzayo kwe-electrolyte phakathi kwama-electrode amahle noma angalungile kungavimbela izinkinga zokuphepha ezifana namasekhethi amafushane nokushisa ngokweqile.Isihlukanisi sidinga nokuba namandla okuhle kwemishini kanye nokuguquguquka ukuze sibhekane nokunwetshwa nokufinyela kwebhethri futhi sivikele ukulimala komshini kanye namasekhethi amafushane angaphakathi.Ukwengeza, isihlukanisi sidinga futhi ukugcina ukuzinza kwesakhiwo nokusebenza ngesikhathiimpilo yebhethriukuqinisekisa ukusebenza okuthembekile kwesikhathi eside kwebhethri.Nakuba isihlukanisi singahlanganyeli ngokuqondile ekuphenduleni kwebhethri ye-electrochemical, sinomthelela obalulekile ezicini ezibalulekile ezifana nomthamo webhethri, ukusebenza komjikelezo, ukushaja nokukhipha isivinini, ukuphepha nokuphila isikhathi eside. .Ngakho-ke, ukuthuthukiswa kanye nokwenza kahle kwezihlukanisi kubaluleke kakhulu ekuthuthukisweni nasekusetshenzisweni kwamabhethri e-lithium-ion.
1. Umsebenzi obalulekile wezihlukanisi kuamabhethri e-lithium-ion
Izihlukanisi zidlala indima ebalulekile kumabhethri e-lithium-ion.Akuyona nje isithiyo esingokomzimba esihlukanisa ama-electrode amahle namabi, kodwa futhi sinemisebenzi ebalulekile elandelayo:1.Ukudluliswa kwe-ion: Isihlukanisi kufanele sibe nokusebenza okuhle kokudluliselwa kwe-ion futhi sikwazi ukuvumela i-lithium ion ukuthi idlulise ngokukhululekile phakathi kwama-electrode aqondile noma angalungile.Ngesikhathi esifanayo, isihlukanisi sidinga ukuvimba ngokuphumelelayo ukudluliswa kwama-electron ukuvimbela izifunda ezimfushane nokuzikhipha.2.Ukugcinwa kwe-electrolyte: Isihlukanisi sidinga ukumelana kahle nokungena kwe-solvent, okungagcina ngokuphumelelayo ukusatshalaliswa okufanayo kwe-electrolyte phakathi kwama-electrode amahle namabi futhi kuvimbele ukulahlekelwa kwe-electrolyte kanye nezinguquko zokuhlushwa.3.Amandla omshini: Isihlukanisi sidinga ukuba namandla anele okusebenza ukuze simelane nokucindezeleka kwemishini njengokucindezelwa, ukunwetshwa nokudlidliza kwebhethri ukuze kuqinisekiswe ukuzinza nokuphepha kwebhethri.4.Ukuzinza okushisayo: Isihlukanisi sidinga ukuba nokuqina okuhle kokushisa ukuze kugcinwe ukuzinza kwesakhiwo ezindaweni zokushisa eziphakeme futhi kuvimbele ukubaleka okushisayo nokubola okushisayo.5.Ukuncipha kwelangabi: Isihlukanisi sidinga ukuba ne-flame retadancy enhle, engavimbela ngempumelelo ibhethri emlilweni noma ukuqhuma ngaphansi kwezimo ezingavamile.Ukuze uhlangabezane nezidingo ezingenhla, izihlukanisi ngokuvamile zenziwe ngezinto ze-polymer, njenge-polypropylene (PP), i-polyethylene (PE), njll. Ngaphezu kwalokho, amapharamitha afana nogqinsi, ukuqina, nosayizi wembotshana wesihlukanisi nawo azophazamisa ukusebenza kwebhethri.Ngakho-ke, enqubweni yokulungiselela amabhethri e-lithium-ion, kubaluleke kakhulu ukukhetha izinto ezifanele zokuhlukanisa nokwandisa ukwakheka kwesakhiwo sesihlukanisi.
2. Indima eyinhloko yabahlukanisi kuamabhethri e-lithium:
Kumabhethri e-lithium-ion, isihlukanisi sidlala indima ebalulekile futhi sinemisebenzi esemqoka elandelayo:1.Ion conduction: Isihlukanisi sivumela i-lithium ion ukuthi ithuthwe phakathi kwama-electrode amahle kanye nama-negative.Isihlukanisi ngokuvamile sinokusebenza okuphezulu kwe-ionic, okungakhuthaza ukugeleza okusheshayo ngisho nokugeleza kwe-lithium ion ebhethri futhi kufinyelele ukushaja okuphumelelayo nokukhipha ibhethri.2.Ukuphepha kwebhethri: Isihlukanisi singakwazi ukuvimbela ukuthintana okuqondile kanye nokujikeleza okufushane phakathi kwama-electrode amahle noma angalungile, sigweme i-overcurrent kanye nokushisa ngokweqile ngaphakathi kwebhethri, futhi sinikeze ukuphepha kwebhethri.3.Ukuhlukaniswa kwe-Electrolyte: Isihlukanisi sivimbela amagesi, ukungcola nezinye izinto ku-electrolyte ebhethrini ekuxubeni phakathi kwama-electrode amahle namabi, ukugwema ukusabela nokulahlekelwa kwamakhemikhali okungadingekile, nokugcina ukuzinza nokuphila komjikelezo webhethri.4.Usekelo lwemishini: Isihlukanisi sidlala indima yosekelo lwemishini ebhethrini.Ingakwazi ukulungisa izindawo zama-electrode avumayo noma angalungile nezinye izingxenye zebhethri.Ibuye ibe nezinga elithile lokuguquguquka nokunwebeka ukuze ivumelane nokwandiswa nokuncipha kwebhethri.Izihlukanisi zidlala indima ebalulekile ekuqhubeni kwe-ion, ukuphepha kwebhethri, ukuhlukaniswa kwe-electrolyte kanye nokusekelwa kwemishini kumabhethri e-lithium-ion.Ingaqinisekisa ukusebenza okuzinzile nokusebenza kwebhethri.
3. Izinhlobo zezihlukanisi zebhethri ze-lithium-ion
Kunezinhlobo eziningi zezihlukanisi zebhethri ye-lithium-ion, ezivamile zihlanganisa okulandelayo:1.Isihlukanisi se-Polypropylene (PP): Lokhu okwamanje into evame ukusetshenziswa kakhulu yesihlukanisi.Izihlukanisi ze-Polypropylene zinokuphikiswa okuhle kwamakhemikhali, ukuzinza okuhle kokushisa namandla omshini, kuyilapho ziphethe ukukhetha kwe-ion okulinganiselwe kanye nezakhiwo zokuqhuba.2.Isihlukanisi se-Polyimide (PI): Isihlukanisi se-Polyimide sinokuzinza okuphezulu kokushisa kanye nokuzinza kwamakhemikhali, futhi singagcina ukusebenza okuzinzile ezindaweni zokushisa okuphezulu.Ngenxa yokumelana kwayo ne-voltage ephezulu, izihlukanisi ze-polyimide zivame ukusetshenziswa kumabhethri anamandla amakhulu kanye nezidingo zamandla aphezulu.3.Isihlukanisi se-Polyethylene (PE): Isihlukanisi se-Polyethylene sinokusebenza okuphezulu kwe-ion namandla amahle omshini, futhi kuvame ukusetshenziswa ezinhlotsheni ezithile zamabhethri e-lithium-ion, njengama-supercapacitors namabhethri e-lithium-sulfur.4.I-diaphragm ye-ceramic ehlanganisiwe: I-diaphragm ye-ceramic ehlanganisiwe yenziwe nge-ceramic fiber reinforced polymer substrate.Inamandla amakhulu emishini nokumelana nokushisa futhi ingakwazi ukumelana nokushisa okuphezulu nokulimala ngokomzimba.5.Isihlukanisi se-Nanopore: Isihlukanisi se-Nanopore sisebenzisa ukuhanjiswa kwe-ion okuhle kakhulu kwesakhiwo se-nanopore, kuyilapho sihlangabezana namandla amahle emishini nokuzinza kwamakhemikhali.Kulindeleke ukuthi kusetshenziswe kumabhethri e-lithium-ion anamandla aphezulu kanye nezidingo zempilo ende.Lezi zihlukanisi zezinto ezihlukene nezakhiwo zingakhethwa futhi zenziwe kahle ngokuvumelana nemiklamo yebhethri ehlukene kanye nezidingo zokusebenza.
4. Izidingo zokusebenza zezihlukanisi zebhethri ye-lithium-ion
Izihlukanisi zebhethri ye-lithium-ion ziyingxenye ebalulekile enezidingo zokusebenza ezilandelayo:1.I-electrolyte ephezulu ye-electrolyte: Isihlukanisi kufanele sibe ne-electrolyte conductivity ephezulu ukuze kuthuthukiswe ukuqhutshwa kwe-ion phakathi kwama-electrode amahle noma angalungile ukuze kuzuzwe ukushaja okuphumelelayo nokukhipha ibhethri.2.Ukukhethwa kwe-ion okuhle kakhulu: Isihlukanisi sidinga ukukhetha okuhle kwe-ion, okuvumela kuphela ukudluliswa kwe-lithium ion nokuvimbela ukungena noma ukusabela kwezinye izinto ebhethri.3.Ukuzinza okuhle kokushisa: Isihlukanisi sidinga ukuba nokuqina okuhle kokushisa futhi sikwazi ukugcina ukuzinza kwesakhiwo ngaphansi kwezimo ezimbi kakhulu ezifana nokushisa okuphezulu noma ukushaja ngokweqile ukuvimbela ukugijima okushisayo noma ukukhuphuka kwe-electrolyte nezinye izinkinga.4.Amandla amahle kakhulu wemishini kanye nokuguquguquka: Isihlukanisi sidinga ukuba namandla aphezulu emishini kanye nokuguquguquka ukuze kuvinjelwe izinkinga ezifana ne-edge short circuits noma umonakalo wangaphakathi, futhi uvumelane nokwandiswa nokuncipha kwebhethri.5.Ukumelana okuhle kwamakhemikhali: Isihlukanisi sidinga ukuba nokumelana okuhle kwamakhemikhali futhi sikwazi ukumelana nokugqwala noma ukungcoliswa kwesihlukanisi ngama-electrolyte, amagesi nokungcola ebhethrini.6.Ukumelana okuphansi kanye nokuqina okuphansi: Isihlukanisi kufanele sibe nokumelana okuphansi kanye nokufinyeleleka okuphansi ukuze kuncishiswe ukulahlekelwa ukumelana nokulahlekelwa kwe-electrolyte ngaphakathi kwebhethri.Izidingo zokusebenza zezihlukanisi zebhethri ye-lithium-ion ziyi-electrolyte conductivity ephezulu, ukukhetha okuhle kakhulu kwe-ion, ukuzinza okuhle kwe-thermal, okuhle kakhulu komshini. amandla nokuguquguquka, ukumelana okuhle kwamakhemikhali, ukumelana okuphansi kanye nokungena okuncane.Lezi zidingo zokusebenza ziqinisekisa ukuphepha kwebhethri, impilo yomjikelezo kanye nokuminyana kwamandla.
Isikhathi sokuthumela: Sep-15-2023