Ingxoxo: Kungani kungenjalo i-lithium iron phosphate?

Ingabe izimoto zikagesi zikaTesla ziphephile ukusebenzisa? Kungani ungasebenzisi amabhethri e-lithium iron phosphate? Izimpendulo ezilandelayo zivela kubasebenzi bebhethri ye-lithium.

Njengonjiniyela osebenza esikhungweni socwaningo, ekugcineni ngathola ithuba lokusho amazwi ambalwa mayelana nomkhakha wami.

Okokuqala, ukuze kulungiswe lo mqondo, ibhethri ye-lithium isifinyezo salokho esivame ukukubiza ngokuthi ibhethri ye-lithium. Lokho okubiza ngokuthi i-ferroelectricity empeleni kuwuhlobo lwebhethri ye-lithium. Isebenzisa i-lithium iron phosphate njengedatha ye-electrode enhle. Iwuhlobo lwebhethri ye-lithium.

Manje ake siqale ngenguqulo elula ye-surface abstraction:

I-Tesla isebenzisa i-Panasonic, ene-NCA njenge-electrode enhle, futhi ihlela uhlelo oluphelele lokuphatha ibhethri ukuze kuqinisekiswe futhi kuthuthukiswe ukusebenza kahle nokuphepha kokusebenza kwebhethri. Mayelana nokuthi iphephile ngempela yini, lokhu akukwazi ukuphendulwa. Uma ufuna ukukhuluma ngokuvutha okuzenzakalelayo, ngifuna ukusho ukuthi izimoto zikaphethiloli nazo zizovutha ngokuzenzekelayo ehlobo.

Ngezimoto zikagesi ezimsulwa, yini esikhathazeke ngayo kakhulu? Lokhu akukude nokukhathazeka, ngoba ukuminyana kwamandla amabhethri angawagcina kuphansi kakhulu. Kulezi zinsuku, ukuminyana kwamandla amabhethri emoto kuvamise ukuba ngu-100 kuya ku-150 Wh/kg, kanti ukuminyana kwamandla kaphethiloli cishe ku-10,000. wh/kg. Ngakho-ke noma uphatha inqwaba yamabhethri njengofudu, awukwazi ukuphatha. Ake sihleke ukuthi izimoto zikagesi ziphelelwa kanjani amandla ngesikhathi sokushajwa kwansuku zonke.

Ubuthakathaka obukhulu bobuchwepheshe bamanje bebhethri ukuminyana kwamandla aphansi, okusilela ngemuva kakhulu koMthetho kaMoore. Ungakhulumi nge-lithium engenalutho, noma ngabe ukuminyana kwamandla abo akuphakeme ngokwanele, akukude nokusebenziseka…

Isizathu esiyinhloko sokungasebenzisi amabhethri e-lithium iron phosphate, ngingathanda ukusho, amandla aphansi namandla aphansi (i-lithium iron phosphate ingaphansi kuka-3, i-voltage ephansi, i-3.4V, amandla aphansi kakhulu). Kuzinhlelo zokusebenza ezingokoqobo, amaphakethe ebhethri lemoto ahlanganiswe wonke ochungechungeni nokuhambisana, futhi uchungechunge lwendlela yokuxhuma iyadingeka ukuze kwenyuswe i-voltage. Ngalesi sikhathi, ukuvumelana kwe-voltage yeselula namandla phakathi kwamabhethri ahlukene kuba kubaluleke kakhulu, futhi akukona ukuhlakanipha ukusho ukuthi umthamo uphansi.

Ukuze siqhathanise amaphuzu ambalwa edatha amahle, kufanele sethule le grafu, okuyimibandela emihlanu ebalulekile yokusebenza:

Amandla, impilo, izindleko, ukuphepha namandla.

Idatha yokuqhathanisa ithi NMC/NCA idatha ephindwe kathathu/NCA, LCO lithium cobaltate, LFP lithium iron phosphate kanye ne-LMO lithium manganenate. I-NCA kanye ne-NCM bayizihlobo eziseduze, ngakho baqoqwe lapha.

Kusukela esithombeni singabona:

Izibalo ze-Alliance

Amandla amancane kakhulu (ngeshwa, umthamo ophansi uyinkinga, i-voltage ephansi iyinkinga ye-3.4V, njenge-4.7V lithium NMC spinel). Isikhala sikhawulelwe, ngakho-ke ungabeki amajika wokushaja nokukhipha lapha.

Amandla awekho nhlobo aphansi (ukuhlolwa komshayeli we-lithium iron phosphate 5C kungafinyelela ku-130mAh/g drop (PHOSTECH ingaphinda…) Iphakeji ye-carbon + nano data multiplier isenamandla kakhulu!

Ukuphepha kwempilo nokuphila kungcono kakhulu, okubalulekile ngoba kucatshangwa ukuthi i-polyanion PO43-

Ngaphezu kwalokho, umoya-mpilo uhlangana kangcono ne-electrolyte, okuholela ekusebenzeni okuphansi. Ngokungafani nedatha ye-ternary, kulula ukubonisa amabhamuza komoyampilo nezinye izenzakalo. Ngokwesikhathi sokuphila, ngokuvamile kubhekwa njengokukwazi ukwenza imijikelezo engu-4000.

Izindleko ziphezulu, futhi izindleko ze-lithium iron phosphate zinhle. Izindleko zingokwesibili kuphela ku-LMO lithium manganate (le nto, ukushiswa komoya, umthombo we-manganese ishibhile), futhi owesibili oncintisana kakhulu. I-lithium iron phosphate material, i-lithium phosphorus ishibhile uma kuqhathaniswa, kodwa ezinye izindleko, ukwenza impushana, ukwelashwa kokushisa nomoya ovilaphayo, izidingo zenqubo ehlukahlukene, okuholela ezindlekweni zedatha (mayelana ne-10 w/t e-China) azikho ngaphansi njenge-LMO (6 ~ 7 w/t), kodwa i-NMC (13 w/t) isashibhile kune-LCO (ibiza kakhulu).

Isizathu: I-cobalt ibiza kakhulu kune-nickel, futhi i-nickel ibiza kakhulu kune-ferromanganese. Yiziphi izinto ezisetshenziswayo nokuthi yiziphi izindleko ezisetshenziswayo.

Bese uqhathanisa futhi uhlaziye idatha elandelayo ye-NCM/NCA

Amandla yiyona inzuzo enkulu (izimoto zikagesi zifuna nje ukuya phambili, lokhu kubaluleke kakhulu). Ngaphezu kwalokho, ngokuthuthukiswa kwedatha ye-nickel ephezulu ye-NCM, ukuminyana kwamandla wedatha kungathuthukiswa nakakhulu.

Amandla akuyona inkinga (empeleni, ezimotweni ezihlanzekile zikagesi, amandla abaluleke kakhulu kunezici zamandla, kodwa ezimotweni ezixubile njengeToyota Prius, izici zamandla zibaluleke kakhulu, kodwa isisekelo siwukuthi amandla awabi).