Kuyini Ukujula Kokukhipha?

Ukujula kokukhipha amanzi kuyiphesenti lomthamo owukhiphe ebhethrini. Uma uqala ngokugcwele bese wehlisela ku-20%, lokho kungu-80% we-DoD. Simple ngokwanele.

Isizathu sokuthi noma ubani onendaba nale nombolo impilo yomjikelezo. Yonke imininingwane yebhethri ikunikeza isilinganiso somjikelezo, kodwa lokho kulinganisa akusho lutho ngaphandle kokwazi i-DoD eyahlolwa kuyo. Iseli elilinganiselwe imijikelezo engu-4000 ku-50% DoD lingakunikeza kuphela imijikelezo engu-1200 uma uyisebenzisela ukuthulula ngaso sonke isikhathi. Ngibone amaphrojekthi eshiswa yilokhu. Othile ucacisa isistimu ngokususelwe kunombolo yomjikelezo wesihloko ngaphandle kokufunda ukuphrinta okuhle, futhi eminyakeni emibili kamuva iphekhi ithosi.

Nansi into. Ukuhamba ngebhayisikili okungashoni kwelula impilo, kodwa futhi kusho ukuthi ukhokhela umthamo ongakaze uwusebenzise. Isistimu engu-100 kWh elinganiselwe ku-60% we-DoD ikunikeza u-60 kWh ngomjikelezo ngamunye. Ubungathenga iphekhi elincane futhi uliqhube kanzima. Ukuthi lokho kunengqondo kuncike ezindlekweni zeseli, izindleko zokushintshwa, imikhawulo yesayithi, kanye nokunye okuguquguqukayo okungaba yishumi nanhlanu. Ayikho impendulo efanele jikelele.

Amaseli e-LFP ashintshe izibalo kulokhu. Eminyakeni emihlanu edlule, ukusebenzisa i-NMC ku-90% DoD kwakucela inkinga. Uhlangothi lwe-cathode luyahlukana. Ukulahlekelwa umoya-mpilo, ukuwohloka kwesakhiwo, bonke abasolwa abavamile. I-LFP ayinazo lezo zindlela zokwehluleka ku-DoD ephezulu. Ungayiphusha kakhulu ngaphandle kwesijeziso esifanayo. Kungakho amaphrojekthi amaningi okugcina amile athuthela ku-LFP nakuba ukuminyana kwamandla kubi kakhulu.

Uhlangothi lwe-anode lucindezelwa kuzo zombili iziphetho zewindi lesimo sokushaja. Phansi eduze kweqanda, ukhipha i-lithium ku-graphite efuna ngempela ukubambelela kuyo. Isendlalelo se-SEI siyaqhekeka futhi siyashintsha. Isikhathi ngasinye lapho ishintsha, idla i-lithium eyengeziwe futhi umthamo wehla. Cishe u-100%, ikakhulukazi ngokushaja okusheshayo, usengozini yokucwenga. Akukho okunye okweqisayo okulungele ukuphila isikhathi eside.

Ukuwohloka kwe-cathode kuncike kakhulu kumakhemikhali. I-NMC111 izinze kakhulu kune-NMC811 ku-voltage ephezulu, kodwa i-NMC811 ikunikeza ukuminyana kwamandla. Ama-nickel cathode aphezulu-afuna ukukhulula umoya-mpilo uma uwaqeda amandla adlule endaweni ethile. Lowo moya-mpilo uhlangana ne-electrolyte futhi ukhiqize ukushisa. Qhubeka wenze lokho futhi iseli liguga ngokushesha.

Ukucindezeleka kwemishini kubaluleke kakhulu kunalokho abantu abaningi abakuqaphelayo. I-graphite iyakhukhumala uma uyi-lithiate. I-Silicon anode ivuvukala nakakhulu. Ukuhamba ngebhayisikili okujulile kusho izinguquko ezinkulu zevolumu, ingcindezi eyengeziwe kuma-electrode coatings, amathuba engeziwe okuqhekeka noma ukuqhekeka kwezinhlayiyana. Amanye ama-silicon amasha{4}}ahlanganisa ama-anode anezinkinga zangempela ngalokhu.

Depth of Discharge

Lonke uhlelo lokuphatha ibhethri lunama-min and max setpoints we-SoC. I-BMS ngeke ikuvumele ukuthi uphumele ngaphandle kwalelo windi. Lokho ikhasimende elikubiza ngokuthi "0%" kusibonisi salo cishe u-5% noma u-10% we-SoC yangempela. Lokho abakubiza ngokuthi "100%" kungase kube u-95%. Abakhiqizi benza lokhu ukuze bakhe emaphethelweni.

Inkinga ukuthi umthamo uyaphela ngokuhamba kwesikhathi. Iseli eliqale ku-100 Ah lingase libe ku-85 Ah eminyakeni emithathu kamuva. Uma i-BMS yakho isasebenzisa inani langempela lomthamo, izibalo zakho ze-DoD azilungile. Amasistimu amahle abuyekezwa ngezikhathi ezithile. Izinhlelo ezishibhile azikwenzi.

Izinga lokushisa lifaka esinye isikrufu phakathi. Iseli eku-0℃ingase ilethe kuphela u-60% womthamo wayo olinganiselwe ngisho noma uzama ukudonsa i-DoD engu-100%. I-lithium ayikwazi ukuhamba ngokushesha ngokwanele. Amanye amasistimu asusa umkhawulo we-DoD ngokuzenzakalelayo uma kubanda. Abanye bavele bakuvumele uzame bese behluleka.

Depth of Discharge

Okokugcina igridi, i-DoD engu-80% isezingeni elihle. Uthola ukusetshenziswa okuhle ngaphandle kokubulala amaseli. Izinhlelo zokusebenza zokunqwabelanisa imali engenayo ezidinga imijikelezo eminingi ngosuku zingaya ku-70% ukuze kugcinwe impilo. Amandla ekhophi yasenqolobaneni ahlala engenzi lutho isikhathi esiningi angakhokhela u-90% noma ngaphezulu ngezikhathi ezingavamile lapho edingeka.

Isitoreji selanga sendawo yokuhlala sivamise ukuba ngu-80-90%. I-Tesla Powerwall isebenzisa cishe u-100%, kodwa zisebenzisa amaseli awo kanye nezibalo zazo zewaranti. Abahlanganisi benkampani yangaphandle bavame ukugcinwa kakhulu.

Ama-EV agcwele imephu. U-0-100% obonisiwe kudeshibhodi yakho awuhambisani nemikhawulo yeselula yangempela. Abakhiqizi bafihla umthamo kuzo zombili iziphetho. Kungakanani kuncike ekwakhiweni kwephakethe nokuthi ukuqagela kwewaranti kunamandla kangakanani.

Okubalulekile ukuthi i-DoD iyinketho yokuklama, hhayi inombolo engashintshi. Uyikhetha ngokusekelwe kwezomnotho, ukubekezelela ubungozi, nezidingo zohlelo lokusebenza. Noma ubani okutshela ukuthi kunempendulo eyodwa efanele yazo zonke izimo akenzanga amaphrojekthi anele.