Nei LFP (lithium iron phosphate, LiFePO4) bhatiri ichiita zvirinani kupfuura mamwe matatu matatu makemikari bhatiri panguva yekuchaja?

Kiyi yehupenyu hurefu hweLFP bhatiri ivolti yayo inoshanda, iri pakati pe3.2 ne3.65 volts, yakaderera pane voltage inowanzoshandiswa neNCM bhatiri.Iyo lithium iron phosphate bhatiri inoshandisa phosphate seyakanaka zvinhu uye kabhoni graphite electrode seyakashata electrode;Ivo zvakare vane hupenyu hurefu hwesevhisi, yakanaka kugadzikana kwekupisa uye yakanaka electromechanical performance.

LFP bhatiriinoshanda pamagetsi emagetsi e3.2V, saka kana mabhatiri mana akabatana, bhatiri re12.8V rinogona kuwanikwa;25.6V bhatiri inogona kuwanikwa kana 8 mabhatiri akabatana.Naizvozvo, LFP chemistry ndiyo yakanakisa sarudzo yekutsiva yakadzika-kutenderera lead-asidhi mabhatiri mune akasiyana maapplication.Kusvika pari zvino, isimba ravo remagetsi rakaderera rinomisa kushandiswa kwavo mumotokari huru, nekuti dzakachipa zvakanyanya uye dzakachengeteka.Mamiriro ezvinhu aya akatungamira kugamuchirwa kwehunyanzvi uhu mumusika weChinese, ndosaka 95% yebhatiri yelithium iron phosphate inogadzirwa muChina.

Bhatiri rine graphite anode uye LFP cathode rinoshanda pane rimwe zita re 3.2 volts uye simba guru re 3.65 volts.Nema voltages aya (zvakare akaderera kwazvo), 12000 hupenyu hutenderera hunogona kuwanikwa.Zvisinei, mabhatiri ane graphite anode uye NCM (nickel, cobalt uye manganese oxide) kana NCA (nickel, nickel uye aluminium oxide) cathode inogona kushanda pamhepo yakakwirira, ine zita remagetsi re 3.7 volts uye simba guru re 4.2 volts.Pasi pemamiriro ezvinhu aya, hazvitarisirwe kuwana zvinopfuura 4000 yekuchaja uye yekuburitsa mitsara.

Kana simba rekushanda riri pasi, mvura ye electrolyte pakati pema electrode maviri ebhatiri (kuburikidza neiyo lithium ions inofamba) inogadzikana mumakemikari.Ichi chikamu chinotsanangura kuti sei bhatiri reLTO rinoshanda pa2.3V uye bhatiri reLFP rinoshanda pa3.2V riine hupenyu huri nani pane bhatiri reNCM kana NCA rinoshanda pa3.7V.Kana bhatiri rave nechaji yepamusoro nekudaro simba repamusoro, iyo electrolyte yemvura inozotanga kuodza bhatiri re electrode zvishoma nezvishoma.Naizvozvo, hapana bhatiri rinoshandisa spinel parizvino.Spinel iminerari inoumbwa nemanganese uye aluminium.Yayo cathode voltage i5V, asi itsva electrolyte uye yakagadziridzwa electrode coating zvinodiwa kudzivirira ngura.

Ichi ndicho chikonzero nei zvichidikanwa kuchengetedza bhatiri pane yakaderera inogoneka SoC (nyika yekuchaja kana% yekuchaja), nekuti ichashanda pamhepo yakaderera uye hupenyu hwayo huchawedzerwa.