Kunobuhle nobubi obuhlobene namakhemikhali amabili amakhulu ebhethri asetshenziswa kumaphrojekthi we-solar + wokugcina.Amabhethri aneasidi yomthofu abe khona isikhathi eside futhi aqondakala kalula kodwa anemikhawulo kumthamo wawo wokugcina.Ibhethri ye-lithium-ions banezimpilo zomjikelezo omude futhi anesisindo esilula kodwa ngokwemvelo abiza kakhulu.

Ukufakwa kwesitoreji ngokuvamile kuhlanganisa uhlobo lwebhethri olulodwa, njenge-LG Chem, lapha.Isithombe sihlonishwa ngu-GreenBrilliance

Ingabe umuntu angahlanganisa izinzuzo zekhemistri ngayinye ukuze enze ibhange lebhethri elilodwa elingabizi, elinamandla amakhulu?

Ingabe umuntu uzodingeka ahlakaze ibhange labo lebhethri le-lead-acid ukuze nje angene emisebenzini yebhethri elisha le-lithium-ion?Ingabe umuntu angangeza amabhethri e-lead-acid ashibhile kusistimu yawo ye-lithium ukuze ahlangabezane nomthamo othile wehora le-kilowatt?

Yonke imibuzo ebalulekile enempendulo engachazwanga kangako: kuya ngokuthi.Kulula futhi kunengozi encane ukunamathela kukhemistri eyodwa, kodwa kukhona okunye okuzungezile.

UGordon Gunn, unjiniyela kagesi kwaFreedom Solar Power eTexas, uthe cishe kungenzeka ukuxhuma amabhethri e-lead-acid ne-lithium ndawonye, ​​kodwa kuphela ngokuhlanganisa i-AC.

"Awukwazi neze ukuxhuma amabhethri e-lead-acid ne-lithium ebhasini elilodwa le-DC," esho.“Okuhle kakhulu, bekuzocekela phansi amabhethri, futhi okubi kakhulu…umlilo?Ukuqhuma?Ukufundwa kokuqhubeka kwesikhathi sesikhala?Angazi.”

U-K. Fred Wehmeyer, i-VP ephezulu yobunjiniyela enkampanini yebhethri ye-lead-acid i-US Battery Manufacturing Co., unikeze enye incazelo.

“Ingenziwa, kodwa bekungeke kube lula njengokwengeza amabhethri e-lead-acid ohlelweni lwebhethri ye-lithium.Lezi zinhlelo zombili zizobe zisebenza ngokuzimela, ”kusho u-Wehmeyer.“I-lithium battery system kusazodingeka ukuthi ilawulwe yiBMS yayo eneshaja nesilawuli sokushaja.Isistimu yebhethri le-lead-acid ingadinga ishaja yayo kanye/noma isilawuli sokushaja kodwa ngeke idinge i-BMS.Lezi zinhlelo ezimbili kungenzeka ukuthi zihlinzeka ngemithwalo elinganayo ngokufana kodwa kungase kudingeke ukuthi kube nokulawulwa okuthile ukuze kwabiwe ngokuphepha ukusatshalaliswa komthwalo phakathi kwamakhemistri womabili.”

UTroy Daniels, umphathi wezinsizakalo zobuchwepheshe womkhiqizi webhethri le-LFP i-SimpliPhi Power, akakukhuthazi ukuxuba ikhemistri yebhethri efanayo ingasaphathwa eye-chemistry ehlukile ohlelweni olulodwa, kodwa uyavuma ukuthi kungenziwa.

“Izindlela ezimbalwa zokuhlanganisa kungaba umzila wokuba namasistimu amabili angawodwa (kokubili ishaja ne-inverter) engabelana ngomthwalo ofanayo noma ihlukanise imithwalo kagesi edingekayo." uthe.“Iswishi yokudlulisa ingasetshenziswa;nokho, lokhu kungasho isethi eyodwa kuphela yamabhethri noma ikhemistri engashaja noma ikhiphe ngesikhathi futhi kungase kudingeke kube ukudluliselwa okwenziwa ngesandla.”

Ukuhlukanisa imithwalo kanye nokumisa amasistimu amabili ngokuvamile kuwumsebenzi oyinkimbinkimbi kunalokho abaningi abafuna ukuwenza.

“Asikaze sibhekane ne-hybrid lithium/lead-acid system kwaFreedom Solar ngoba bekungeke kube isengezo esishibhile, futhi sizama ukugcina ukufakwa kwebhethri kwethu kulula ngokusebenzisa ikhemistri yebhethri eyodwa kuphela nomkhiqizo owodwa webhethri, ” kusho uJosh Meade, PE kanye nomphathi wokuklama.

Kunenkampani eyodwa ezama ukwenza ukuhlanganisa la makhemikhali amabili kube lula kancane.Umkhiqizi womkhiqizo wamandla aphathekayo i-Goal Zero ine-Lithium-based Yeti Portable Power Station engasetshenziselwa ukwenza ikhophi yasenqolobaneni yasekhaya.I-Yeti 3000 iyibhethri ye-lithium engu-3-kWh, 70-lb NMC engasekela amasekhethi amane.Uma kudingeka amandla engeziwe, i-Goal Zero inikeza i-Yeti Link Expansion Module evumela ukwengezwa kwamabhethri okunwetshwa kwe-lead-acid.Yebo, kunjalo: Ibhethri ye-lithium Yeti ingabhanqwa ne-lead-acid.

“Ithangi lethu lokunweba liwumjikelezo ongaqondakali, ibhethri le-lead-acid.Lokhu kukuvumela ukuthi usebenzise izinto zikagesi eziku-Yeti [uhlelo olusekelwe ku-lithium] kodwa kunwebe ibhethri,” kusho uBill Harmon, GM at Goal Zero.“Ku-1.25-kWh ngalinye, ungakwazi ukwengeza [amabhethri e-lead-acid] amaningi ngokuthanda kwakho.Ikhasimende lingavele liwaxhume. Kungazelelwe uthola ukuphatheka kwebhethri le-lithium namabhethri e-lead-asidi ashibhile ahlezi ekhaya.”

Izinkinga ezinkulu lapho uzama ukuxhumanisa i-lithium ne-lead-asidi ndawonye ama-voltage azo ahlukene, amaphrofayili wokushaja kanye nemikhawulo yokushaja/yokukhipha.Uma amabhethri ephumile ku-voltage efanayo noma eshajwa ngamanani angafani, amandla azosebenza ngokushesha phakathi kwamanye.Uma amandla esebenza ngokushesha, izinkinga zokushisisa ziyaphakama futhi zithuthukise ukusebenza kahle komjikelezo webhethri.

I-Goal Zero iphethe lesi simo ngedivayisi yayo ye-Yeti Link.I-Yeti Link empeleni iwuhlelo lokuphatha ibhethri oluyinkimbinkimbi olufanele ibhethri ye-Yeti lithium yasekuqaleni elawula ama-voltage nokushaja phakathi kwamakhemikhali ahlukene.

“I-Yeti Link ilawula lokho kudluliselwa kwamandla phakathi kwamabhethri.” kusho uHarmon."Sivikela ngendlela ephephile, ukuze ibhethri ye-lithium ingazi nokuthi ishade nebhethri le-lead-acid."

I-Yeti 3000 ingase ibe mancane kunamabhethri asekhaya e-lithium endabuko - LG Chem.Amamodeli e-Tesla nama-sonnets ngokuvamile anamandla okungenani angu-9.8 kWh - kodwa lokho umdwebo wawo, kusho u-Harmon.Futhi uma othile engakwazi ukuyinweba ize ifike kuleyo maki engu-9-kWh ngamabhethri omthofu ashibhile futhi aphinde ahambe nebhethri ye-lithium lapho ukhempa noma ulandela ngemuva, kungani kungenjalo?

“Uhlelo lwethu ngolwabo bonke abantu ezweni abangenawo u-$15,000 wokutshala endaweni yokugcina amandla.Bese kuthi uma sengiqedile, kumele ngibe yinto efakwe unomphela emzini wami,” kusho uHarmon.“I-Yeti eyalabo abasengcupheni yalokho abasebenzisa imali kukho.Uhlelo lwethu luyi-$3,500 isiyonke efakiwe.”

I-Goal Zero manje isisesizukulwaneni sayo sesihlanu somkhiqizo, ngakho iyazethemba ngamakhono ayo enhlanganisela ye-lithium-lead.Kodwa kwabanye abaningi abangakhululekile kangako ukuxuba ikhemistri yebhethri ngokuqondile, amasistimu amabili ahlukene futhi azimele angafakwa ebhizinisini elifanayo noma endlini - inqobo nje uma emiswe uchwepheshe kagesi.

“Indlela elula nephephile yokwengeza umthamo wokugcina izindleko eziphansi ohlelweni olukhona lwe-lithium kungaba ukuhlukanisa imithwalo futhi ihlukaniselwe amasistimu amabhethri amabili.” kusho u-Wehmeyer webhethri lase-US."Noma kunjalo.Kufanele kwenziwe uchwepheshe oqeqeshiwe ukuze kugcinwe ukuphepha.”