Isingeniso：
Amabhethri e-lithium e-Ternary kanyeamabhethri e-lithium iron phosphateyizinhlobo ezimbili eziyinhloko zamabhethri e-lithium asetshenziswa kabanzi ezimotweni zikagesi, izinhlelo zokugcina amandla kanye namanye amadivayisi kagesi. Kodwa ingabe uke waqonda izici zawo kanye nomehluko wawo? Ukwakheka kwawo kwamakhemikhali, izici zokusebenza kanye nezinkambu zokusetshenziswa kuhluke kakhulu. Ake sifunde kabanzi ngawo nge-Heltec.
Ukwakheka kwezinto:
Ibhethri le-lithium eliyi-ternary: Izinto ze-electrode ezinhle ngokuvamile ziyi-nickel cobalt manganese oxide (NCM) noma i-nickel cobalt aluminium oxide (NCA), eyakhiwa yi-nickel, i-cobalt, i-manganese noma i-nickel, i-cobalt, i-aluminium nezinye izinto zensimbi, kanti i-electrode engemihle ngokuvamile iyi-graphite. Phakathi kwazo, isilinganiso se-nickel, i-cobalt, i-manganese (noma i-aluminium) singalungiswa ngokuya ngezidingo zangempela.
Ibhethri le-lithium iron phosphate: i-lithium iron phosphate (LiFePO₄) isetshenziswa njengento ekhiqiza i-electrode enhle, kanti i-graphite nayo isetshenziswa kwi-electrode engemihle. Ukwakheka kwayo kwamakhemikhali kuzinzile, futhi ayinazo izinsimbi ezisindayo nezinsimbi ezingavamile, okuyinto enobungani kakhulu nemvelo.
Ukusebenza kokushaja nokukhipha:
Ibhethri le-lithium eliyi-ternary: isivinini sokushaja okusheshayo kanye nokukhipha, lingazivumelanisa nokushaja okuphezulu kanye nokukhipha amandla, lifanele imishini kanye nezimo ezinezidingo eziphezulu zesivinini sokushaja, njengezimoto zikagesi ezisekela ukushaja okusheshayo. Endaweni yokushisa okuphansi, ukusebenza kwayo kokushaja kanye nokukhipha amandla nakho kuhle, futhi ukulahlekelwa amandla kuncane kakhulu.
Ibhethri le-lithium iron phosphate: ukushaja okuhamba kancane kanye nesivinini sokukhipha, kodwa ukushaja komjikelezo okuzinzile kanye nokusebenza kokukhipha. Ingasekela ukushaja okunesivinini esiphezulu futhi ingashajwa ngokugcwele ngehora eli-1 ngokushesha, kodwa ukusebenza kahle kokushaja kanye nokukhipha ngokuvamile kungama-80%, okuphansi kancane kunebhethri le-ternary lithium. Ngaphansi kwezimo zokushisa eziphansi, ukusebenza kwayo kwehla kakhulu, futhi izinga lokugcina amandla ebhethri lingaba ngu-50%-60% kuphela.
Ubuningi bamandla:
Ibhethri le-lithium eliyi-ternary: Ubuningi bamandla buphakeme kakhulu, ngokuvamile bufinyelela ngaphezu kuka-200Wh/kg, futhi eminye imikhiqizo ethuthukisiwe ingadlula u-260Wh/kg. Lokhu kuvumela amabhethri e-lithium eliyi-ternary ukuthi agcine amandla amaningi ngevolumu noma isisindo esifanayo, okunikeza ibanga elide lokushayela kumadivayisi, njengasezimotweni zikagesi, ezingasekela izimoto ukuthi zihambe amabanga amade.
Ibhethri le-lithium iron phosphate: Ubuningi bamandla buphansi kakhulu, ngokuvamile bungu-110-150Wh/kg. Ngakho-ke, ukuze kufezwe ibanga lokushayela elifanayo namabhethri e-lithium amathathu, amabhethri e-lithium iron phosphate angadinga ivolumu noma isisindo esikhulu.
Impilo yomjikelezo:
Ibhethri le-lithium eliyi-ternary: Impilo yomjikelezo imfushane kakhulu, inenombolo yomjikelezo wethiyori ephindwe izikhathi ezingaba ngu-2,000. Ekusetshenzisweni kwangempela, amandla kungenzeka ukuthi abolile afinyelela cishe ku-60% ngemva kwemijikelezo eyi-1,000. Ukusetshenziswa okungalungile, njengokushaja ngokweqile noma ukukhipha, kanye nokusetshenziswa ezindaweni ezishisa kakhulu, kuzosheshisa ukubola kwebhethri.
Ibhethri le-lithium iron phosphate: Impilo yomjikelezo omude, enemijikelezo yokushaja nokukhipha engaphezu kuka-3,500, kanti amanye amabhethri asezingeni eliphezulu angafinyelela ngisho izikhathi ezingaphezu kuka-5,000, okulingana nokusetshenziswa kweminyaka engaphezu kwe-10. Ine-lattice stability enhle, futhi ukufakwa nokususwa kwama-ion e-lithium akunawo umthelela omkhulu ku-lattice, futhi inokuguqulwa okuhle.
Ukuphepha:
Ibhethri le-lithium eliyi-ternary: ukuzinza kokushisa okubi, okulula ukukubangela ukubaleka kokushisa ngaphansi kokushisa okuphezulu, ukushaja ngokweqile, i-short circuit nezinye izimo, okuholela engcupheni enkulu yokusha noma ngisho nokuqhuma. Kodwa-ke, ngokuthuthuka kobuchwepheshe kanye nokuqiniswa kwezinyathelo zokuphepha, njengokusetshenziswa kwezinhlelo zokuphatha ibhethri ezithuthukisiwe kanye nokwenza ngcono isakhiwo sebhethri, ukuphepha kwayo nakho kuyathuthuka njalo.
Ibhethri le-lithium iron phosphate: ukuzinza okuhle kokushisa, izinto ze-electrode ezinhle akulula ukuzikhipha umoya-mpilo ekushiseni okuphezulu, futhi ngeke ziqale ukubola kuze kube ngu-700-800℃, futhi ngeke zikhiphe ama-molecule e-oxygen lapho zibhekene nokushayisana, ukubhoboza, i-short circuit nezinye izimo, futhi azikwazi ukusha ngamandla, zisebenza kahle kakhulu ngokuphepha.
Izindleko:
Ibhethri le-lithium eliyi-ternary: ngoba izinto ze-electrode ezinhle ziqukethe izakhi zensimbi ezibizayo njenge-nickel ne-cobalt, kanti izidingo zenqubo yokukhiqiza ziphakeme, kanti nezidingo zemvelo nazo ziqinile, ngakho-ke izindleko ziphezulu kakhulu.
Ibhethri le-lithium iron phosphate: intengo yezinto zokusetshenziswa iphansi kakhulu, inqubo yokukhiqiza ilula kakhulu, futhi izindleko zizonke zinezinzuzo ezithile. Isibonelo, ezimotweni ezintsha zamandla, amamodeli afakwe amabhethri e-lithium iron phosphate avame ukuba nentengo ephansi kakhulu.
Isiphetho
Ukukhetha ibhethri kuncike kakhulu ezidingweni ezithile zohlelo lokusebenza. Uma kudingeka amandla amaningi kanye nokuphila isikhathi eside kwebhethri, amabhethri e-ternary lithium angaba yisinqumo esingcono; uma ukuphepha, ukuqina kanye nokuphila isikhathi eside kuyizinto eziza kuqala, amabhethri e-lithium iron phosphate afaneleka kakhulu.
I-Heltec Energy ingumlingani wakho othembekile kuiphakethe lebhethriukukhiqiza. Ngokugxila kwethu okungapheli ocwaningweni nasekuthuthukisweni, kanye nohlu lwethu oluphelele lwezesekeli zamabhethri, sinikeza izixazululo ezifika kanye ukuze sihlangabezane nezidingo ezishintshayo zomkhakha. Ukuzibophezela kwethu ekwenzeni kahle, izixazululo ezenzelwe wena, kanye nokubambisana okuqinile kwamakhasimende kusenza sibe yisinqumo esikhethwa kakhulu ngabakhiqizi nabahlinzeki bamaphakethe amabhethri emhlabeni jikelele.
Uma unemibuzo noma ungathanda ukwazi okwengeziwe, sicela ungangabazi ukungithumelelaxhumana nathi.
Isicelo Sekhotheshini:
UJacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
I-Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
UNancy:nancy@heltec-energy.com/ +86 184 8223 7713
Isikhathi sokuthunyelwe: Disemba-27-2024