Kukho izinto ezilungileyo nezingalunganga ezinxulumene nekhemikhali yebhetri ezimbini eziphambili ezisetyenziswa kwiiprojekthi zokugcina amandla elanga +. Iibhetri ze-lead-acid bezikho ixesha elide kwaye kulula ukuziqonda kodwa zinemida kumandla azo okugcina.Ibhetri yeLithium-ionZinobomi obude kwaye zilula ngobunzima kodwa zibiza kakhulu ngokwemvelo.

Ufakelo lweendawo zokugcina ludla ngokuba nohlobo olunye lwebhetri, njengakwi-LG Chem, apha. Ifoto ngoncedo lweGreenBrilliance

Ngaba umntu angadibanisa izinto ezilungileyo zekhemistri nganye ukuze enze ibhetri enye engabizi kakhulu nenamandla aphezulu?

Ngaba kuya kufuneka umntu aqhaqhe ibhanki yakhe yebhetri ye-lead-acid ukuze nje asebenzise imisebenzi yebhetri entsha ye-lithium-ion? Ngaba umntu angangeza iibhetri ze-lead-acid ezingabizi kakhulu kwinkqubo yakhe ye-lithium ukuze ahlangabezane nomthamo othile we-kilowatt-hour?

Yonke imibuzo ebalulekileyo enempendulo engachazwanga kakuhle: ixhomekeke. Kulula kwaye akukho mngcipheko ukunamathela kwikhemistri enye, kodwa kukho iindlela ezithile zokusombulula ingxaki.

UGordon Gunn, injineli yombane kwiFreedom Solar Power eTexas, uthe kusenokwenzeka ukudibanisa iibhetri ze-lead-acid kunye ne-lithium kunye, kodwa kuphela ngokusebenzisa i-AC coupling.

“Awunakukwazi ukudibanisa iibhetri ze-lead-acid kunye ne-lithium kwibhasi enye ye-DC,” utshilo. “Eyona nto ingcono, ingatshabalalisa iibhetri, kwaye eyona nto imbi… umlilo? Ukuqhuma? Ukufundwa kwe-space-time continuum? Andazi.”

UK. Fred Wehmeyer, isekela eliphezulu lobunjineli kwinkampani yeebhetri ze-lead-acid e-US Battery Manufacturing Co., unike ingcaciso engaphezulu.

“Ingenziwa, kodwa bekungayi kuba lula njengokongeza iibhetri ze-lead-acid kwinkqubo yebhetri ye-lithium. Ezi nkqubo zimbini beziza kusebenza ngokuzimeleyo,” utshilo uWehmeyer. “Inkqubo yebhetri ye-lithium ibisaza kufuneka ilawulwe yi-BMS yayo enetshaja kunye nomlawuli wetshaja. Inkqubo yebhetri ye-lead-acid ibiza kufuna itshaja kunye/okanye umlawuli wetshaja kodwa ibingayi kufuna i-BMS. Ezi nkqubo zimbini zisenokubonelela ngemithwalo efanayo ngaxeshanye kodwa kusenokufuneka kubekho ulawulo oluthile lokwabela ngokukhuselekileyo ukusasazwa komthwalo phakathi kwala machiza mabini.”

UTroy Daniels, umphathi weenkonzo zobugcisa kumvelisi weebhetri ze-LFP iSimpliPhi Power, akacebisi ukuba kuxutywe ikhemistri yebhetri efanayo ingasathethwa ke ngekhemistri eyahlukileyo kwinkqubo enye, kodwa uyavuma ukuba oko kungenziwa.

“Ezinye iindlela zokudibanisa ingaba yindlela yokuba neenkqubo ezimbini ezizimeleyo (zombini itshaja kunye ne-inverter) ezinokwabelana ngomthwalo ofanayo okanye zahlule imithwalo yombane efunekayo.” utshilo. “Iswitshi yokudlulisa ingasetyenziswa; nangona kunjalo, oku kuthetha ukuba iseti enye yeebhetri okanye ikhemistri inokutshaja okanye ikhuphe ngexesha kwaye kusenokwenzeka ukuba kudluliselwe ngesandla.”

Ukwahlula imithwalo kunye nokuseta iinkqubo ezimbini kudla ngokuba ngumsebenzi onzima ngakumbi kunokuba abaninzi befuna.

“Asikaze sijongane nenkqubo ye-lithium/lead-acid exutyiweyo eFreedom Solar kuba ibingayi kuba yinto engabizi kakhulu, kwaye sizama ukugcina ukufakelwa kwebhetri yethu kulula ngokusebenzisa ikhemistri yebhetri enye kuphela kunye nemveliso yebhetri enye,” utshilo uJosh Meade, umphathi we-PE kunye noyilo.

Kukho inkampani enye ezama ukwenza ukudibanisa ezi khemikhali zimbini kube lula kancinci. Umenzi wemveliso yamandla aphathwayo iGoal Zero uneSitishi saMandla esiphathwayo seYeti esisekelwe kwi-lithium esinokusetyenziselwa ukugcina ikhaya ngendlela engaphelelanga. IYeti 3000 yibhetri ye-lithium ye-3-kWh, 70-lb NMC enokuxhasa iisekethe ezine. Ukuba kufuneka amandla angaphezulu, iGoal Zero inikezela ngeModule yayo yoKwandisa iYeti Link evumela ukongezwa kweebhetri zokwandisa i-lead-acid. Ewe, kunjalo: Ibhetri ye-lithium Yeti inokudityaniswa ne-lead-acid.

“Itanki yethu yokwandisa yibhetri engaqondakaliyo, ibhetri ye-lead-acid. Oku kukuvumela ukuba usebenzise izixhobo ze-elektroniki kwiYeti [inkqubo esekelwe kwi-lithium] kodwa kuyandisa ibhetri,” utshilo uBill Harmon, GM kwiGoal Zero. “Kwi-1.25-kWh nganye, ungongeza [iibhetri ze-lead-acid] ezininzi kangangoko ufuna. Umthengi angazixhuma nje. Ngequbuliso ufumana ukuphatheka kwebhetri ye-lithium kunye neebhetri ze-lead-acid ezingabizi kakhulu ezihleli ekhaya.”

Iingxaki ezinkulu xa uzama ukudibanisa i-lithium kunye ne-lead-acid kunye zii-voltages zazo ezahlukeneyo, iiprofayili zokutshaja kunye nemida yokutshaja/yokukhupha i-charge. Ukuba iibhetri azikho kwi-voltage efanayo okanye zikhupha i-charge ngamanqanaba angalinganiyo, amandla aya kusebenza ngokukhawuleza phakathi komnye nomnye. Xa amandla esebenza ngokukhawuleza, kuvela iingxaki zokufudumeza kwaye ziphazamise ukusebenza kakuhle komjikelo webhetri.

I-Goal Zero ilawula le meko ngesixhobo sayo se-Yeti Link. I-Yeti Link ngokusisiseko yinkqubo yokulawula ibhetri ephucukileyo efanelekileyo kwibhetri yokuqala ye-Yeti lithium elawula ii-voltage kunye nokutshaja phakathi kweekhemikhali ezahlukeneyo.

“I-Yeti Link ilawula ukudluliselwa kwamandla phakathi kweebhetri.” utshilo uHarmon. “Sikhusela ngendlela ekhuselekileyo, ukuze ibhetri ye-lithium ingazi nokuba idibene nebhetri ye-lead-acid.”

I-Yeti 3000 isenokuba ncinci kuneebhetri zekhaya ze-lithium zemveli – iimodeli ze-LG Chem. I-Tesla kunye nee-sonnets zihlala zinamandla angama-9.8 kWh – kodwa yiloo nto inomtsalane wayo, utshilo uHarmon. Kwaye ukuba umntu angayandisa ifikelele kuloo mpawu ye-9-kWh ngeebhetri ze-lead ezingabizi kakhulu aze athathe ibhetri ye-lithium xa ekhempisha okanye ehamba ngeenyawo, kutheni kungenjalo?

“Inkqubo yethu yeyabo bonke abantu kweli lizwe abangenayo i-$15,000 yokutyala imali kwindawo yokugcina umbane. Emva koko xa ndigqibile, kufuneka ndibe yinto efakwe ngokusisigxina ekhayeni lam,” utshilo uHarmon. “I-Yeti yeyabo basengozini yoko bachitha imali kuko. Inkqubo yethu ifakelwe i-$3,500 iyonke.”

I-Goal Zero ngoku ikwisizukulwana sayo sesihlanu semveliso, ngoko ke iqinisekile ngezakhono zayo zokudibanisa i-lithium-lead. Kodwa kwabanye abaninzi abangakhululekanga kangako ekuxubeni i-chemistry yebhetri, iinkqubo ezimbini ezizimeleyo nezizimeleyo zinokufakwa kwishishini elinye okanye kwikhaya elinye - lo gama nje imiselwe yingcali yombane.

“Indlela elula nekhuselekileyo yokongeza amandla okugcina angabizi kakhulu kwinkqubo ye-lithium ekhoyo kukwahlulahlula imithwalo kwaye uyibeke ngokwahlukeneyo kwiinkqubo ezimbini zebhetri.” UWehmeyer wase-US Battery uthe. “Nokuba yeyiphi na indlela. Oku kufanele kwenziwe yingcali eqeqeshiweyo ukugcina ukhuseleko.”