Kev Taw Qhia:
Auj, qhov kev tsim kho tshiab no yuav ua rau cov cai ntawm qhov kev ua si hauv kev lag luam hluav taws xob tshiab thoob ntiaj teb puas tsuaj tag! Thaum Lub Ob Hlis 12, 2025, phau ntawv xov xwm thoob ntiaj teb Nature tau tshaj tawm qhov kev hloov pauv tshiab. Pab neeg ntawm Peng Huisheng / Gao Yue los ntawm Fudan University hauv Suav teb tau tsim ib qho tshiabthev naus laus zis ntawm lub roj teeb lithium "rejuvenation", rhuav tshem cov qauv tsim qauv ib txwm muaj ntawm cov roj teeb lithium rau ntau tshaj 30 xyoo, uas tuaj yeem ntev lub neej roj teeb ntau tshaj 10 npaug! Lub roj teeb lithium hlau phosphate ib txwm tseem khaws cia 96% ntawm nws lub peev xwm tom qab 11,818 lub voj voog them thiab tso tawm! Koj paub, cov roj teeb lithium tam sim no muaj nyob rau hauv kev ua lag luam siv rau 1000-2000 zaug.
Qhov no txhais li cas? Ib lub tsheb Tesla yav tas los yuav tsum tau hloov nws lub roj teeb txhua 6-8 xyoo, tab sis tam sim no nws tuaj yeem tsav tau 60 xyoo yam tsis tas yuav hloov nws! Koj lub iPhone tuaj yeem them thiab tso tawm 10,000 zaug yam tsis poob hluav taws xob!
Kev tshoov siab rau kev siv tshuab kho roj teeb los ntawm kev kho mob tib neeg
Qhov kev tshawb pom txuj ci tseem ceeb no tau tshwm sim li cas?
Ib yam li kev kho cov kab mob ntawm tib neeg, peb tsom mus rau kev kho cov teeb meem tseem ceeb ntawm cov roj teeb thaum tiv thaiv lawv cov khoom noj qab haus huv, "piav qhia Gao Yue, tus kws tshawb fawb ntawm Fudan University.
Chiv thawj, qhov laj thawj tseem ceeb rau "kev laus" ntawm cov roj teeb lithium yog qhov poob ntawm cov lithium ions. Ib yam li qhov tsis muaj qee yam khoom noj khoom haus hauv tib neeg lub cev tuaj yeem ua rau muaj mob, cov roj teeb kuj tuaj yeem ua rau kev ua haujlwm poob qis vim yog kev tsis noj zaub mov zoo. Lub tswv yim tshiab ntawm pab neeg yog: Peb puas tuaj yeem rov ua kom cov lithium ions ploj hauv lub roj teeb zoo li muab tshuaj rau tus neeg mob?
AI pab ua kom tiav cov thev naus laus zis tseem ceeb ntawm kev sib npaug ntawm lub roj teeb
Txawm li cas los xij, nrhiav qhov "txhaj tshuaj" tsim nyog tsis yog ib txoj haujlwm yooj yim. Cov molecule nqa khoom no yuav tsum ua tau raws li cov kev cai ntawm lub cev thiab tshuaj lom neeg tib lub sijhawm:
- Muaj cov haujlwm electrochemical tsim nyog thiab qhov hluav taws xob decomposition ntau yam.
- Kev yaj tau zoo hauv electrolyte.
- Muaj kev ruaj khov huab cua zoo heev thiab kev ruaj khov tshuaj lom neeg.
- Kev ua haujlwm ntawm cov kua qaub, alkalinity, thiab kinetics ntawm cov tshuaj tiv thaiv.
- Cov khoom uas lwj yuav tsum muaj kev nyab xeeb thiab tsis ua rau puas tsuaj.
- Qhov tseem ceeb tshaj plaws, nws yuav tsum pheej yig thiab yooj yim rau kev nthuav dav ntau lawm.
Kev txawj ntse cuav nrhiav pom cov ntaub ntawv tseem ceeb
Tsis muaj ib qho piv txwv ua ntej, pab pawg tshawb fawb tau tig mus rau kev txawj ntse cuav. Lawv tau hloov cov khoom molecular mus rau hauv digital thiab siv kev kawm tshuab los nrhiav cov lus teb los ntawm ntau cov ntaub ntawv organic chemistry, electrochemistry thiab cov ntaub ntawv engineering.
Qhov kev ua haujlwm hnyav tau txais txiaj ntsig! Tom qab 4 xyoos ntawm kev ua haujlwm hnyav, thaum kawg lawv pom qhov kev daws teeb meem zoo tshaj plaws: CF3SO2Li (lithium trifluoromethanesulfonate). Cov molecule no zoo li lub tshuab thauj khoom me me, nqa cov electrons lithium ntawm ib kawg thiab tso tawm lawv ua roj rau lwm qhov kawg tom qab kev thauj mus los tiav.
Cov txiaj ntsig ntawm kev sim ua rau xav tsis thoob!
Hauv kev sim, lub roj teeb uas tau txais qhov "kev kho mob meej" no tseem muaj kev ua haujlwm ze rau qib Hoobkas txawm tias tom qab 12000 txog 60000 lub voj voog them thiab tso tawm. Qhov no tsis yog tsuas yog ua kom lub roj teeb ntev dua, tab sis kuj muab kev daws teeb meem kev siv tshuab los daws qhov teeb meem ntawm kev ua qias tuaj ntawm roj teeb loj.
Qhov zoo siab tshaj plaws yog tias cov thev naus laus zis no tau qhib cov cib fim tshiab kiag li:
Siv lub roj teeb lithium tsis muaj cathode nrog lub zog hluav taws xob ntawm 3.0V thiab lub zog ceev txog li 1192 Wh / kg.
Tsim tawm lub roj teeb polyacrylonitrile cathode pouch uas muaj cov organic sulfurized nrog lub zog ceev ntawm 388 Wh/kg.
Kev Cuam Tshuam ntawm Kev Hloov Pauv
Qhov kev tshawb pom tshiab no yuav hloov pauv tag nrho cov cai ntawm qhov kev ua si hauv kev lag luam zog tshiab:
Nws yuav txo tus nqi ntawm kev siv tsheb fais fab, txo qhov kev ua qias tuaj ib puag ncig los ntawm kev siv roj teeb pov tseg, thiab qhib cov tswv yim tshiab rau kev tsim cov roj teeb tshiab; qhov zoo siab tshaj plaws yog tias tus nqi ntawm cov thev naus laus zis no yog qhov tseem ceeb heev - nws xav tias yuav suav nrog tsawg dua 10% ntawm tag nrho cov nqi roj teeb, uas txhais tau tias nws muaj peev xwm rau kev siv lag luam loj!
Raws li tus kws tshawb fawb Gao Yue tau hais tias: Txawm hais tias nws yog los txuas lub roj teeb lub neej lossis tiv thaiv kev tso tseg loj thiab kev ua qias tuaj rau ib puag ncig, qhov "kev kho mob meej" no muab kev daws teeb meem kev siv tau. Kev tshawb fawb no tsis yog tsuas yog qhia txog Tuam Tshoj lub zog tshiab hauv kev lag luam ntawm lub zog tshiab, tab sis kuj tseem ceeb toom txog kev tuaj txog ntawm lub sijhawm tshiab. Nyob rau yav tom ntej, "kev ntxhov siab txog roj teeb" yuav dhau los ua keeb kwm. Cia peb tos ntsoov rau kev lag luam ntawm cov thev naus laus zis hloov pauv no sai li sai tau!
Kev Thov Kom Tau Txais Nqe Lus:
Jacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
Qab zib:sucre@heltec-bms.com/ +86 136 8844 2313
Nancy:nancy@heltec-energy.com/ +86 184 8223 7713
Lub sijhawm tshaj tawm: Lub Ob Hlis-28-2025