Kuzinhlelo zokusebenza ezahlukahlukene, amabhethri amakhulu adingeka kakhulu namuhla.Lawa mabhethri anezinhlelo zokusebenza eziningi, okuhlanganisa amabhethri elanga, imoto kagesi, namabhethri okungcebeleka.Amabhethri e-lead-acid ayewukuphela kwenketho yomthamo webhethri ephezulu emakethe kuze kube yiminyaka embalwa edlule.Isifiso samabhethri asekelwe ku-lithium sishintshile kakhulu emakethe yamanje, noma kunjalo, ngenxa yezicelo zabo.

Ibhethri ye-lithium-ion kanye ne-lithium Iron phosphate (I-LiFePO4) ibhethri igqame phakathi kokunye kulokhu.Abantu bavame ukubuza mayelana nomehluko phakathi kwamabhethri amabili ngoba asuselwa ku-lithium.

Ngenxa yalokho, sizohlola la mabhethri ngokujulile kulesi siqeshana futhi sixoxe ngokuthi ahluka kanjani.Ngokufunda ngokusebenza kwazo ezintweni ezihlukene, uzothola ukuqonda okwengeziwe ngokuthi iliphi ibhethri elizokusebenzela kangcono.Ngaphandle kokuchitha isikhathi, ake siqale:

Kungani amabhethri e-LiFePO4 engcono:

Abakhiqizi ezimbonini ezihlukahlukene babheka i-lithium iron phosphate ukuze bafake izicelo lapho ukuphepha kuyisihluthulelo.Ukuqina okuhle kwamakhemikhali nokushisa kuyimpahla ye-lithium iron phosphate.Ezimweni ezishisayo, leli bhethri ligcina ukupholisa kwalo.

Futhi ayishi uma iphathwa ngendlela engafanele phakathi nezindleko ezisheshayo nokukhishwa noma lapho izinkinga zesekethe elifushane zenzeka.Ngenxa yokumelana kwe-phosphate cathode ekushiseni noma ekuqhumeni ngesikhathi sokushajwa ngokweqile noma ukushisa ngokweqile kanye nekhono lebhethri lokugcina izinga lokushisa elizolile, amabhethri e-lithium iron phosphate ngokuvamile awazwani nokubaleka okushisayo.

Kodwa-ke, izinzuzo zokuphepha zekhemikhali yebhethri ye-lithium-ion zincane kakhulu kunalezo ze-lithium iron phosphate.Ibhethri lingathembeka kakhulu ngenxa yobuningi bamandla alo, okuwumphumela.Njengoba ibhethri ye-lithium-ion isengozini yokubaleka ngokushisayo, ifudumala ngokushesha lapho ishaja.Ukukhishwa kwebhethri ekugcineni ngemva kokusetshenziswa noma ukungasebenzi kungenye inzuzo ye-lithium iron phosphate ngokokuphepha.

Ikhemikhali ye-lithium cobalt dioxide esetshenziswa kumabhethri e-lithium-ion ithathwa njengeyingozi ngoba ingadalula abantu ekuphenduleni kokungezwani komzimba emehlweni nasesikhumbeni.Lapho igwinywa, ingase futhi ibangele izinkinga ezinkulu zempilo.Ngenxa yalokho, amabhethri e-lithium-ion adinga ukukhathazeka okukhethekile kokulahlwa.Kodwa-ke, abakhiqizi bangakwazi ukulahla i-lithium iron phosphate kalula ngoba ayinabo ubuthi.

Ukujula kokukhishwa kwamabhethri e-lithium-ion kusuka ku-80% kuya ku-95%.Lokhu kusho ukuthi kufanele ngaso sonke isikhathi ushiye ubuncane bokushaja okungu-5% kuya ku-20% (iphesenti eliqondile liyahlukahluka kuye ngebhethri elithile) ebhethrini.Ukujula kokukhishwa kwamabhethri e-lithium iron phosphate (LiFeP04) kuphezulu ngendlela emangalisayo ku-100%.Lokhu kubonisa ukuthi ibhethri lingashajwa ngokugcwele ngaphandle kwengozi yokulilimaza.Ibhethri ye-lithium iron phosphate iyintandokazi emangalisayo mayelana nokujula kokuncipha.

Yibuphi ububi obukhulu bebhethri ye-Lithium-ion?

Izindleko nokwethenjwa kwezinhlelo zokugcina amandla, njengalezo ezisetshenziswa njengamandla ayisipele noma ukunciphisa ukushintshashintsha kwamandla akhiqizwayo avela emithonjeni yamandla avuselelekayo, kuthonywa kakhulu impilo yokusebenza kwamabhethri.Kodwa-ke, amabhethri e-lithium-ion anezinkinga ezinkulu, okuhlanganisa ukuguga nokuvikelwa.

Amandla amabhethri e-lithium-ion namaseli aphansi kunalawo amabhethri e-Lithium iron phosphate.Kudingeka baqaphele ukuthi bangakhokhiswa ngokweqile futhi bakhululwe ngokweqile.Ukwengeza, kumele bagcine ekhona ngaphakathi kwemingcele eyamukelekayo.Ngenxa yalokhu, okukodwa kokuhlehla kwamabhethri e-lithium-ion ukuthi i-circuitry yokuvikela kufanele yengezwe ukuze kuqinisekiswe ukuthi agcinwa ngaphakathi kwebanga lawo lokusebenza eliphephile.

Ngenhlanhla, ubuchwepheshe besekethe obudidiyelwe bedijithali bukwenza kube lula ngokunengqondo ukufaka lokhu ebhethrini noma, uma ibhethri lingashintsheki, okokusebenza.Amabhethri e-Li-ion angasetshenziswa ngaphandle kobuchwepheshe obukhethekile ngenxa yokuhlanganiswa kokulawulwa kwebhethri.Uma ibhethri seligcwaliswe ngokugcwele, lingagcinwa lishajiwe, futhi ishaja izonqamula amandla ebhethri.

Amabhethri e-lithium-ion anezinhlelo zokuphatha ibhethri ezakhelwe ngaphakathi eziqapha izici ezihlukahlukene zokusebenza kwawo.Isekhethi yokuvikela ikhawulela amandla kagesi aphezulu eseli ngalinye ngesikhathi sokushaja ngoba i-voltage eningi ingalimaza amaseli.Njengoba amabhethri ngokuvamile enokuxhumeka okukodwa kuphela, ngokuvamile ashajwa ngochungechunge, okwandisa ingozi yokuthi iseli elilodwa lithole amandla kagesi aphezulu kunokudingekile ngenxa yokuthi amaseli ahlukahlukene angase adinge amazinga okushaja ahlukene.

Isistimu yokuphatha ibhethri iphinde ilandelele izinga lokushisa leseli ukugwema amazinga okushisa aphezulu.Amabhethri amaningi anomkhawulo ophezulu wokushajwa kanye nomkhawulo wamanje wokukhulula ophakathi kuka-1°C no-2°C.Nokho, lapho ishajwa ngokushesha, ezinye ziyafudumala kancane.

Iqiniso lokuthi amabhethri e-lithium ion ayawohloka ngokuhamba kwesikhathi kungenye yezingqinamba ezinkulu zokuwasebenzisa emishinini yabathengi.Lokhu kuncike esikhathini noma ikhalenda, kodwa futhi kuncike ekutheni ibhethri lidlule emizuliswaneni emingaki yokushajwa.Imvamisa, amabhethri akwazi ukubekezelela kuphela imijikelezo yokushajwa engu-500 kuya kweyi-1000 ngaphambi kokuthi amandla awo aqale ukwehla.Le nombolo iyanda njengoba ubuchwepheshe be-lithium-ion buthuthuka, kodwa uma amabhethri akhelwe emshinini, angase adinge ukushintshwa ngemva kwesikhashana.

Ungakhetha kanjani phakathi kwebhethri ye-LiFePO4 ne-Lithium-ion?

I-lithium iron phosphate (I-LiFePO4) amabhethri anezinzuzo eziningi uma kuqhathaniswa namabhethri e-lithium-ion.Ukukhipha okuthuthukisiwe nokusebenza kahle kokushaja, ubude besikhathi sempilo, akukho kunakekelwa, ukuphepha okudlulele, kanye nesisindo esincane, ukusho ezimbalwa.Nakuba amabhethri e-LiFePO4 engekho phakathi kwalawo athengekayo kakhulu emakethe, ayitshalomali ebaluleke kakhulu yesikhathi eside ngenxa yokuphila kwawo isikhathi eside kanye nokuntuleka kokunakekelwa.

Ekujuleni okungamaphesenti angama-80, amabhethri e-lithium iron phosphate angashajwa izikhathi ezingafika ku-5000 ngaphandle kokuphazamisa ukusebenza kahle.Impilo yokusebenza kwamabhethri e-lithium iron phosphate (LiFePO4) inganyuswa ngokungenzi lutho.

Ukwengeza, amabhethri awanayo imiphumela yenkumbulo, futhi ungawagcina isikhathi eside ngenxa yezinga lawo eliphansi lokuzikhipha (3% nyanga zonke).Ukunakekelwa okukhethekile kuyadingeka kumabhethri e-lithium-ion.Uma kungenjalo, isikhathi sabo sokuphila siyoncishiswa nakakhulu.

Ivolumu yokushaja engu-100% yamabhethri e-lithium iron phosphate (LiFePO4) iyasebenziseka.Futhi zilungele izinhlelo zokusebenza ezahlukahlukene ngenxa yokushaja kwazo okusheshayo namazinga okukhipha.Ukusebenza kahle kuyanda, futhi noma yikuphi ukubambezeleka kuyehla ngokushaja okusheshayo.Amandla alethwa ngokuqhuma okusheshayo ngamaza omsindo ophumayo aphezulu.

Isixazululo

Ugesi welanga usubekezelele emakethe ngoba amabhethri asebenza kahle kakhulu.Kuphephile ukusho ukuthi isisombululo esingcono sokugcina amandla sizoholela kuphela endaweni ehlanzekile, evikelekile, nebalulekile.Imishini yamandla elanga ingazuza kakhulu ngokusebenzisa i-lithium iron phosphate namabhethri e-lithium-ion.

Nokho,I-LiFePO4amabhethri anezinzuzo ezengeziwe kubo bobabili abathengi nabathengisi.Ukutshala imali eziteshini zamandla aphathwayo ngamabhethri e-LiFePO4 kuyinketho enhle ngenxa yokusebenza kwazo okuphezulu, ukuphila kweshelufu okude, kanye nemiphumela encishisiwe yemvelo.