1. Iingxaki zongcoliseko emva kokurisayikilisha i-lithium iron phosphate
Imakethi yokusetyenziswa kwakhona kweebhetri zamandla inkulu kakhulu, kwaye ngokutsho kwamaziko ophando afanelekileyo, inani eliqokelelweyo leebhetri zamandla zaseTshayina ezisele ziphelelwe lixesha kulindeleke ukuba lifikelele kwi-137.4MWh ngo-2025.
Ukuthatha iibhetri ze-lithium iron phosphateUmzekelo, kukho iindlela ezimbini eziphambili zokusebenzisa kwakhona kunye nokusetyenziswa kweebhetri zamandla ezisele zisetyenzisiwe: enye kukusetyenziswa kwe-cascade, enye kukudiliza kunye nokurisayikilisha.
Ukusetyenziswa kwe-cascade kubhekisa ekusetyenzisweni kweebhetri zamandla ze-lithium iron phosphate ezinomthamo oseleyo ophakathi kwe-30% ukuya kwi-80% emva kokuqhaqha kunye nokuphinda kuhlanganiswe, kwaye zisetyenziswe kwiindawo ezinobunzima obuphantsi njengogcino lwamandla.
Ukudilizwa nokurisayikilishwa, njengoko igama lisitsho, kubhekisa ekudilizweni kweebhetri zamandla ze-lithium iron phosphate xa amandla aseleyo engaphantsi kwe-30%, kunye nokubuyiselwa kwezinto eziluhlaza zazo, ezifana ne-lithium, i-phosphorus, kunye ne-iron kwi-electrode elungileyo.
Ukudilizwa nokurisayikilishwa kweebhetri ze-lithium-ion kunokunciphisa ukwembiwa kwezinto ezintsha ezikrwada ukukhusela okusingqongileyo kwaye kukwanegalelo elikhulu kwezoqoqosho, kunciphisa kakhulu iindleko zokumbiwa, iindleko zokuvelisa, iindleko zabasebenzi, kunye neendleko zoyilo lwemigca yemveliso.
Ingqwalasela yokuqhaqha nokurisayikilisha iibhetri ze-lithium-ion ikakhulu iqulathe la manyathelo alandelayo: okokuqala, ukuqokelela nokwahlulahlula iibhetri ze-lithium ezilahliweyo, emva koko ukukhupha iibhetri, ekugqibeleni ukwahlula nokucokisa iintsimbi. Emva kokusebenza, iintsimbi kunye nezinto ezifunyenweyo zingasetyenziselwa ukuvelisa iibhetri ezintsha okanye ezinye iimveliso, nto leyo egcina iindleko kakhulu.
Nangona kunjalo, ngoku kuquka iqela leenkampani ezisebenzisa iibhetri kwakhona, ezifana neGuangdong Bangpu Circular Technology Co., Ltd., eziphantsi kweNingde Times Holding Co., Ltd., zonke zijongene nomba onzima: ukuphinda kusetyenziswe iibhetri kwakhona kuya kuvelisa iimveliso ezinobungozi kwaye kukhuphe ungcoliseko oluyingozi. Imakethi ifuna ngokungxamisekileyo ubuchwepheshe obutsha ukuphucula ungcoliseko kunye nobutyhefu bokuphinda kusetyenziswe iibhetri kwakhona.
2. I-LBNL ifumene izixhobo ezintsha zokusombulula imiba yongcoliseko emva kokurisayikilisha iibhetri.
Kutshanje, iLawrence Berkeley National Laboratory (LBNL) eMelika ibhengeze ukuba ifumene into entsha enokuphinda isebenzise iibhetri ze-lithium-ion ezilahliweyo ngamanzi kuphela.
ILabhoratri yeSizwe iLawrence Berkeley yasungulwa ngo-1931 kwaye ilawulwa yiYunivesithi yaseCalifornia kwiOfisi yeSayensi yeSebe laMandla laseMelika. Iphumelele amabhaso eNobel ali-16.
Izinto ezintsha eziveliswe yiLawrence Berkeley National Laboratory zibizwa ngokuba yiQuick-Release Binder. Iibhetri zeLithium-ion ezenziwe ngale nto zinokuphinda zisetyenziswe lula, zinobuhlobo nokusingqongileyo, kwaye azinabungozi. Zifuna kuphela ukuqhaqhwa zifakwe emanzini ane-alkaline, kwaye zishukunyiswe ngobunono ukuze zahlule izinto ezifunekayo. Emva koko, iintsimbi ziyahluzwa ziphume emanzini zize zomiswe.
Xa ithelekiswa nokurisayikilisha kwe-lithium-ion okwangoku, okubandakanya ukuqhekeza nokugaya iibhetri, kulandele ukutsha ukuze kwahlulwe isinyithi kunye nezinto, inetyhefu enkulu kwaye ayisebenzi kakuhle kwindalo. Le nto intsha ifana nobusuku nemini xa ithelekiswa.
Ngasekupheleni kukaSeptemba ka-2022, obu buchwepheshe bakhethwa njengenye yeetekhnoloji ezili-100 eziphuhlisiweyo kwihlabathi liphela ngo-2022 ngamabhaso e-R&D 100.
Njengoko sisazi, iibhetri ze-lithium-ion ziqulathe ii-electrode ezilungileyo nezingalunganga, isahluli, i-electrolyte, kunye nezinto zokwakha, kodwa indlela ezi nxalenye zidityaniswe ngayo kwiibhetri ze-lithium-ion ayaziwa kakuhle.
Kwiibhetri ze-lithium-ion, into ebalulekileyo egcina isakhiwo sebhetri yi-glue.
I-Quick-Release Binder entsha efunyenwe ngabaphandi beLawrence Berkeley National Laboratory yenziwe nge-polyacrylic acid (PAA) kunye ne-polyethylene imine (PEI), ezidityaniswe ngamakhonkco phakathi kwee-athomu ze-nitrogen ezitshajwe kakuhle kwi-PEI kunye nee-athomu ze-oxygen ezitshajwe kakubi kwi-PAA.
Xa i-Quick-Release Binder ifakwa emanzini e-alkaline ane-sodium hydroxide (Na+OH-), ii-sodium ion zingena ngequbuliso kwindawo yokuncamathelisa, zahlula ii-polymers ezimbini. Ii-polymers ezahlulweyo ziyanyibilika zibe lulwelo, zikhuphe naziphi na izinto ze-electrode ezifakwe ngaphakathi.
Ngokuphathelele iindleko, xa isetyenziselwa ukwenza ii-electrode zebhetri ye-lithium ezilungileyo nezingalunganga, ixabiso lale glue limalunga nesinye kwishumi sezona zimbini zisetyenziswa kakhulu.
Ixesha lokuthumela: Epreli-25-2023