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Umehluko phakathi kwe-ternary lithium ne-lithium iron phosphate

Isingeniso:

Ternary lithium amabhethri kanyeamabhethri e-lithium iron phosphateyizinhlobo ezimbili eziyinhloko zamabhethri e-lithium okwamanje asetshenziswa kabanzi ezimotweni zikagesi, izinhlelo zokugcina amandla nezinye izinto zikagesi. Kodwa ingabe uye waziqonda izici nokuhluka kwazo? Ukwakheka kwamakhemikhali abo, izici zokusebenza kanye nezinkambu zokusetshenziswa kuhluke kakhulu. Masifunde okwengeziwe ngabo nge-Heltec.

amabhethri-e-lithium-ibhethri-amaphakethe-i-lithium-iron-phosphate-amabhethri-i-lithium ion-ibhethri-pack (8)

Ukwakheka kwezinto:

I-Ternary lithium battery: I-positive electrode material imvamisa i-nickel cobalt manganese oxide (NCM) noma i-nickel cobalt aluminium oxide (NCA), eyakhiwe nge-nickel, i-cobalt, i-manganese noma i-nickel, i-cobalt, i-aluminium nezinye izakhi zensimbi, kanye ne-negative. I-electrode ngokuvamile i-graphite. Phakathi kwabo, isilinganiso nickel, cobalt, manganese (noma aluminium) ingashintshwa ngokuvumelana nezidingo zangempela.

Ibhethri ye-lithium iron phosphate: i-lithium iron phosphate (LiFePO₄) isetshenziswa njengento enhle ye-electrode, futhi i-graphite nayo isetshenziselwa i-electrode engalungile. Ukwakheka kwayo kwamakhemikhali kuzinzile uma kuqhathaniswa, futhi ayinazo izinsimbi ezisindayo nezinsimbi ezingavamile, ezihambisana nemvelo.

Ukushaja nokukhipha ukusebenza:

Ibhethri ye-Ternary lithium: ukushaja okusheshayo kanye nesivinini sokukhipha, ingakwazi ukuzivumelanisa nokushaja okuphezulu kwamanje kanye nokukhishwa, ifanele imishini kanye nezimo ezinezidingo eziphakeme zejubane lokushaja, njengezimoto zikagesi ezisekela ukushaja okusheshayo. Ezimweni zokushisa eziphansi, ukusebenza kwayo kokushaja nokukhipha nakho kuhle kakhulu, futhi ukulahlekelwa umthamo kuncane uma kuqhathaniswa.

Ibhethri ye-lithium iron phosphate: ukushaja okuhamba kancane kanye nesivinini sokukhipha, kodwa ukushaja komjikelezo ozinzile nokusebenza kokukhipha. Ingakwazi ukusekela ukushaja kwezinga eliphezulu futhi ingashajwa ngokugcwele ehoreni elingu-1 ngokushesha okukhulu, kodwa ukushaja nokusebenza kahle kokukhipha ngokuvamile kuba ngu-80%, okungaphansi kancane kunalelo lebhethri le-ternary lithium. Ngaphansi kwezimo zokushisa eziphansi, ukusebenza kwayo kwehla kakhulu, futhi izinga lokugcinwa kwamandla ebhethri lingase libe ngu-50% -60% kuphela.

Ukuminyana kwamandla:

Ibhethri ye-lithium ye-Ternary: Ubuningi bamandla buphakeme kakhulu, ngokuvamile bufinyelela ngaphezu kuka-200Wh/kg, futhi eminye imikhiqizo ethuthukisiwe ingadlula ku-260Wh/kg. Lokhu kuvumela amabhethri e-lithium e-ternary ukuthi agcine amandla engeziwe ngevolumu efanayo noma ngesisindo, anikeze ibanga elide lokushayela lamadivayisi, njengezimoto zikagesi, ezingasekela izimoto ukuhamba amabanga amade.

Ibhethri ye-lithium iron phosphate: Ukuminyana kwamandla kuphansi kakhulu, ngokuvamile cishe ku-110-150Wh/kg. Ngakho-ke, ukuze kuzuzwe ibanga lokushayela elifanayo njengamabhethri e-ternary lithium, amabhethri e-lithium iron phosphate angadinga ivolumu enkulu noma isisindo.

Impilo yomjikelezo:

Ibhethri ye-Ternary lithium: Impilo yomjikelezo imfushane, nenombolo yomjikelezo wethiyori izikhathi ezingaba ngu-2,000. Ekusetshenzisweni kwangempela, umthamo kungenzeka ukuthi wabola wafinyelela cishe ku-60% ngemva kwemijikelezo eyi-1,000. Ukusetshenziswa okungalungile, njengokushaja ngokweqile noma ukushajwa, kanye nokusetshenziswa ezindaweni ezishisayo, kuzosheshisa ukubola kwebhethri.

Ibhethri ye-lithium iron phosphate: Impilo yomjikelezo omude, nemijikelezo yokushaja nokukhipha engaphezu kuka-3,500, futhi amanye amabhethri ekhwalithi ephezulu angafinyelela izikhathi ezingaphezu kwezi-5,000, okulingana neminyaka engaphezu kwe-10 yokusetshenziswa. Inokuqina okuhle kwe-lattice, futhi ukufakwa nokususwa kwe-lithium ion kunethonya elincane ku-lattice, futhi kunokubuyisela emuva okuhle.

Ukuphepha:

Ibhethri ye-lithium ye-Ternary: ukungazinzi kahle kokushisa, kulula ukubangela ukushisa okushisayo ngaphansi kwezinga lokushisa eliphezulu, ukushajwa ngokweqile, ukujikeleza okufushane nezinye izimo, okuholela engcupheni enkulu yokusha noma ngisho nokuqhuma. Kodwa-ke, ngokuthuthuka kobuchwepheshe kanye nokuqiniswa kwezinyathelo zokuphepha, ezifana nokusetshenziswa kwezinhlelo zokuphatha ibhethri ezithuthuke kakhulu kanye nokwenza kahle kwesakhiwo sebhethri, ukuphepha kwayo nakho kuhlala kuthuthuka.

Ibhethri ye-lithium iron phosphate: ukuzinza okuhle kokushisa, izinto ezibonakalayo ze-electrode akulula ukukhulula umoya-mpilo ekushiseni okuphezulu, futhi ngeke ziqale ukubola kuze kube ngu-700-800 ℃, futhi ngeke zikhulule ama-molecule e-oksijini lapho zibhekene nomthelela, ukubhoboza, isifunda esifushane futhi ezinye izimo, futhi ayijwayele ukusha ngobudlova, ngokusebenza kokuphepha okuphezulu.

Izindleko:

Ibhethri ye-lithium ye-Ternary: ngoba i-electrode esebenzayo iqukethe izakhi zensimbi ezibizayo njenge-nickel ne-cobalt, futhi izidingo zenqubo yokukhiqiza ziphakeme, futhi izidingo zemvelo nazo ziqinile, ngakho-ke izindleko ziphakeme kakhulu.

Ibhethri ye-lithium iron phosphate: intengo yezinto zokusetshenziswa iphansi kakhulu, inqubo yokukhiqiza ilula, futhi izindleko zizonke zinezinzuzo ezithile. Isibonelo, ezimotweni zamandla amasha, amamodeli afakwe amabhethri e-lithium iron phosphate ngokuvamile anenani eliphansi uma kuqhathaniswa.

Isiphetho

Ukukhethwa kwebhethri kuncike kakhulu ezidingweni ezithile zohlelo lokusebenza. Uma ukuminyana kwamandla okuphezulu nempilo yebhethri ende kuyadingeka, amabhethri e-lithium e-ternary angaba ukukhetha okungcono; uma ukuphepha, ukuqina nokuphila isikhathi eside kuyizinto eziza kuqala, amabhethri e-lithium iron phosphate afaneleka kakhulu.

I-Heltec Energy inguzakwethu omethembayoiphakethe lebhethriukukhiqiza. Ngokugxila kwethu ngokungaphezi ocwaningweni nasekuthuthukisweni, kuhambisana nohlu lwethu olubanzi lwezinsiza zebhethri, sinikeza izixazululo zokuma okukodwa ukuze sihlangabezane nezidingo eziguqukayo zomkhakha. Ukuzibophezela kwethu ekwenzeni okuhle, izixazululo eziklanyelwe, kanye nokusebenzisana okuqinile kwamakhasimende kusenza sibe yinketho kubakhiqizi baphakethe lebhethri nabahlinzeki emhlabeni jikelele.

Uma unemibuzo noma ungathanda ukufunda okwengeziwe, sicela ungangabazifinyelela kithi.

Isicelo sekhotheshini:

U-Jacqueline:jacqueline@heltec-bms.com/ +86 185 8375 6538

Sucre:sucre@heltec-bms.com/ +86 136 8844 2313

U-Nancy:nancy@heltec-bms.com/ +86 184 8223 7713


Isikhathi sokuthumela: Dec-27-2024