1.Imiba yongcoliseko emva kokuhlaziya i-lithium iron phosphate
Imakethi yokuphinda isetyenziswe kwibhetri yamandla inkulu, kwaye ngokwamaziko ophando afanelekileyo, ibhetri yamandla esele isidla umhlala-phantsi yaseTshayina kulindeleke ukuba ifikelele kwi-137.4MWh ngo-2025.
Ukuthatha iibhetri ze-lithium iron phosphatenjengomzekelo, kukho iindlela ezimbini zokurisayikilishwa kunye nokusetyenziswa kweebhetri zamandla eziye zahlala umhlala-phantsi: enye kusetyenziso lwe-cascade, kwaye enye kukudilizwa kunye nokurisayikilisha.
Ukusetyenziswa kwe-Cascade kubhekiselele ekusetyenzisweni kweebhetri zamandla e-lithium iron phosphate ezinomthamo oseleyo phakathi kwe-30% ukuya kwi-80% emva kokuqhawulwa kunye nokudibanisa kwakhona, kunye nokuzisebenzisa kwiindawo zokuxinana kwamandla aphantsi ezifana nokugcinwa kwamandla.
Ukudilizwa kunye nokuphinda kusetyenziswe, njengoko igama libonisa, libhekisela ekutshitshisweni kweebhetri zamandla e-lithium iron phosphate xa umthamo oseleyo ungaphantsi kwe-30%, kunye nokubuyiselwa kwezinto zabo eziluhlaza, ezifana ne-lithium, i-phosphorus, kunye nentsimbi kwi-electrode efanelekileyo.
Ukuchithwa kunye nokuhlaziywa kweebhetri ze-lithium-ion kunokunciphisa ukumbiwa kwezinto ezintsha zokukhusela indalo kwaye zibe nexabiso elikhulu lezoqoqosho, ukunciphisa kakhulu iindleko zemigodi, iindleko zokuvelisa, iindleko zabasebenzi, kunye neendleko zokucwangcisa umgca wemveliso.
Ingqwalasela yebhetri ye-lithium-ion yokudilizwa kunye nokuphinda isetyenziswe ngokuyintloko iquka la manyathelo alandelayo: okokuqala, ukuqokelela kunye nokwahlula inkunkuma ye-lithium iibhetri, emva koko uchithe iibhetri, kwaye ekugqibeleni uhlukanise kwaye ucokise iintsimbi.Emva kokusebenza, iintsimbi ezifunyenweyo kunye nezixhobo zingasetyenziselwa ukuveliswa kweebhetri ezintsha okanye ezinye iimveliso, ukonga kakhulu iindleko.
Nangona kunjalo, ngoku kubandakanywa neqela leenkampani zokurisayikilisha iibhetri, ezifana neNingde Times Holding Co., Ltd. i-subsidiary Guangdong Bangpu Circular Technology Co., Ltd., zonke zijongene nengxaki enameva: ukuphinda kusetyenziswe ibhetri kuya kuvelisa iimveliso ezinetyhefu kwaye kukhuphe izingcolisi eziyingozi. .Imarike ifuna ngokungxamisekileyo ubugcisa obutsha ukuphucula ungcoliseko kunye netyhefu yokurisayikilishwa kwebhetri.
I-2.LBNL ifumene izixhobo ezitsha zokusombulula imiba yongcoliseko emva kokuhlaziywa kwebhetri.
Kutshanje, uLawrence Berkeley National Laboratory (LBNL) eUnited States ubhengeze ukuba bafumene imathiriyeli entsha enokuphinda isetyenziselwe inkunkuma ye-lithium-ion ibhetri ngamanzi nje.
ILabhoratri yeSizwe yaseLawrence Berkeley yasekwa ngo-1931 kwaye ilawulwa yiYunivesithi yaseCalifornia kwiOfisi yeSayensi yeSebe lezaMandla lase-US.Iphumelele amaBhaso eNobel ali-16.
Imathiriyeli entsha eyilwe yiLabhoratri yeSizwe yaseLawrence Berkeley ibizwa ngokuba yi-Quick-Release Binder.Iibhetri zeLithium-ion ezenziwe ngalo mathiriyeli zinokuphinda zisetyenziswe, zinobuhlobo nokusingqongileyo, kwaye zingabi natyhefu.Zifuna kuphela ukuchithwa kwaye zifakwe emanzini e-alkaline, kwaye zishukunyiswe ngobumnene ukuze zihlukanise izinto ezifunekayo.Emva koko, iintsimbi ziyahluzwa ngaphandle kwamanzi kwaye zomiswe.
Xa kuthelekiswa ne-lithium-ion yangoku yokurisayikilisha, ebandakanya ukucubhuka kunye nokusila iibhetri, ilandelwa kukutsha kwentsimbi kunye nokwahlula izinto, inobuthi obunobungozi kunye nokusebenza kakubi kwendalo.Izinto ezintsha zifana nobusuku nemini xa kuthelekiswa.
Ekupheleni kukaSeptemba ka-2022, obu buchwepheshe bukhethwe njengenye yetekhnoloji yenguqu eyi-100 ephuhliswe kwihlabathi liphela ngo-2022 yi-R&D 100 Awards.
Njengoko sisazi, iibhetri ze-lithium-ion ziquka i-electrodes ephilileyo kunye ne-negative, i-separator, i-electrolyte, kunye nezixhobo zesakhiwo, kodwa ukuba ezi zixhobo zidibaniswe njani kwiibhetri ze-lithium-ion akwaziwa kakuhle.
Kwiibhetri ze-lithium-ion, into ebalulekileyo egcina isakhiwo sebhetri yi-adhesive.
I-Binder entsha yokukhutshwa ngokukhawuleza efunyenwe nguLawrence Berkeley abaphandi beLebhu yeSizwe yenziwe nge-polyacrylic acid (PAA) kunye ne-polyethylene imine (PEI), edityaniswe ngamabhondi phakathi kwe-athomu yenitrogen ehlawulwe kakuhle kwi-PEI kunye ne-athomu ye-oksijini ehlawuliswa kakubi kwi-PAA.
Xa i-Quick-Release Binder ifakwe kumanzi e-alkaline ane-sodium hydroxide (Na + OH-), i-sodium ion ingena ngokukhawuleza kwindawo yokubambelela, ihlula iipolymers ezimbini.Iipolymers ezahluliweyo zinyibilika kulwelo, zikhupha naziphi na izinto ezifakwe kwi-electrode.
Ngokwendleko, xa isetyenziselwa ukwenza i-lithium yebhetri echanekileyo kunye ne-electrode engalunganga, ixabiso lale nto yokuncamathelisa imalunga nesinye eshumini sezibini ezisetyenziswa ngokuqhelekileyo.
Ixesha lokuposa: Apr-25-2023