Kawm paub ntau ntxiv txog peb lub tshuab hloov pauv

Dr. Zhang tau piav qhia txog peb lub thev naus laus zis thev naus laus zis hauv qab no, feem ntau tseem nyob hauv chav kuaj. Txawm hais tias tseem muaj txoj hauv kev mus ntev mus rau kev lag luam ntau lawm, peb ntseeg tias kev txhim kho sai ntawm cov khoom siv hluav taws xob ntawm lub xov tooj ntawm tes yuav ua rau cov nqi roj teeb nce ntxiv, uas yuav ua rau muaj kev cuam tshuam txog kev lag luam thiab kev lag luam.

Cov xov tooj ntawm tes, ntsiav tshuaj, thiab cov khoom siv coj los siv tau tag nrho cov booming, tab sis lub roj teeb yog ib qho ntawm lawv cov fwj. Cov neeg siv smartphone tshiab feem ntau poob siab nrog lub roj teeb lub neej. Yav tas los, lawv siv lawv lub xov tooj ntawm tes tau 4 mus rau 7 hnub, tab sis tam sim no lawv yuav tsum tau them lawv txhua hnub.

Cov roj teeb lithium yog qhov tseem ceeb tshaj plaws, nyiam los ntawm cov neeg txhawb nqa thiab cov neeg sab hauv kev lag luam, tab sis nyob rau lub sijhawm ntev, lawv yuav tsis txaus los ua ob npaug rau lawv lub zog ceev. Hauv cov xov tooj ntse, tib neeg siv sijhawm ntau hauv online, nrawm dua, thiab txhawb nqa chips kuj tseem yuav nrawm dua. Nyob rau tib lub sijhawm, txawm tias kev txhim kho hauv txhua qhov kev ntsuas kev txuag hluav taws xob, cov ntxaij vab tshaus tau loj dua thiab cov nqi hluav taws xob tau nce. Dr. Zhang Yuegang, tus kws tshaj lij roj teeb thoob ntiaj teb ntawm Suav Academy ntawm Kev Tshawb Fawb, tau hais tias ib lub lim tiam cov roj teeb uas siv tau rau lub xov tooj smartphones yuav tsis txaus.

Zog ceev yog ib tug ntawm cov tub ntxhais ntsuas rau kev ntsuas roj teeb zoo, thiab nws lub tswv yim yog cia ntau thiab ntau zog nyob rau hauv sib zog thiab me me roj teeb. Piv txwv li, BYD cov roj teeb lithium, suav los ntawm qhov hnyav thiab ntim, tam sim no siv 100-125 watt-teev / kg thiab 240-300 watt-teev / liter raws. Panasonic laptop roj teeb siv hauv Tesla Model S lub tsheb fais fab muaj lub zog ceev ntawm 170 watt-teev ib kilogram. Hauv peb tsab ntawv tshaj tawm dhau los, lub tuam txhab Asmeskas Enevate tau txhim kho cov ntaub ntawv cathode kom nce lub zog ntawm cov roj teeb lithium ntau dua 30%.

Txhawm rau ua kom lub zog ntom ntom ntawm cov roj teeb exponentially, koj yuav tsum cia siab rau cov thev naus laus zis thev naus laus zis tshiab. Zhang Yuegang tau qhia peb txog peb lub thev naus laus zis thev naus laus zis hauv qab no, feem ntau tseem nyob hauv chav kuaj. Txawm hais tias tseem muaj txoj hauv kev mus ntev mus rau kev lag luam ntau lawm, peb ntseeg tias kev txhim kho sai ntawm cov khoom siv hluav taws xob ntawm lub xov tooj ntawm tes yuav ua rau cov nqi roj teeb nce ntxiv, uas yuav muaj tseeb ua kom muaj kev cuam tshuam ntawm kev siv tshuab thiab kev lag luam.

Lithium sulfur roj teeb

Lithium-sulfur roj teeb yog lithium roj teeb nrog leej faj raws li qhov zoo electrode thiab hlau lithium raws li qhov tsis zoo electrode. Nws qhov theoretical zog ceev yog kwv yees li 5 npaug ntawm lithium roj teeb, thiab nws tseem nyob rau theem pib ntawm kev loj hlob.

Tam sim no, cov roj teeb lithium-sulfur yog lub cim tshiab ntawm cov roj teeb lithium, uas tau nkag mus rau hauv kev tshawb fawb hauv chav kuaj thiab ntau yam nyiaj txiag ua ntej, thiab muaj kev lag luam zoo.

Txawm li cas los xij, cov roj teeb lithium-sulfur tseem ntsib qee qhov kev sib tw, tshwj xeeb tshaj yog cov khoom siv tshuaj lom neeg ntawm lub roj teeb cov ntaub ntawv tsis zoo electrode thiab qhov tsis muaj zog ntawm lithium hlau, uas yog ib qho kev sim loj ntawm roj teeb kev nyab xeeb. Tsis tas li ntawd, ntau yam xws li kev ruaj ntseg, qauv, thiab thev naus laus zis tau ntsib cov teeb meem tsis paub.

Tam sim no, nyob rau hauv UK thiab Asmeskas, ntau tshaj li ib lub koom haum tab tom kawm txog lithium-sulfur roj teeb, thiab qee lub tuam txhab tau hais tias lawv yuav tso cov roj teeb zoo li no rau xyoo no. Hauv nws qhov chaw kuaj Berkeley, nws tseem tab tom kawm cov roj teeb lithium-sulfur. Nyob rau hauv ib puag ncig kev sim xav tau ntau dua, tom qab ntau dua 3,000 lub voj voog, tau txais txiaj ntsig zoo.

lithium cua roj teeb

Lithium-air roj teeb yog lub roj teeb uas lithium yog qhov zoo electrode thiab cov pa oxygen hauv huab cua yog qhov tsis zoo electrode. Lub zog theoretical zog ntawm lithium anode yog ze li ntawm 10 npaug ntawm lub roj teeb lithium, vim tias qhov zoo electrode hlau lithium yog lub teeb heev, thiab cov khoom siv hluav taws xob zoo electrode oxygen muaj nyob hauv ib puag ncig ntuj thiab tsis khaws cia hauv lub roj teeb.

Li-air roj teeb tau ntsib ntau yam kev sib tw. Ntxiv nrog rau kev ruaj ntseg ntawm cov hlau lithium, cov lithium oxide tsim los ntawm cov tshuaj tiv thaiv oxidation ruaj khov heev, thiab cov tshuaj tiv thaiv tsuas tuaj yeem ua tiav thiab txo qis nrog kev pab los ntawm catalyst. Tsis tas li ntawd, qhov teeb meem ntawm lub voj voog roj teeb tsis tau daws.

Piv nrog cov roj teeb lithium-sulfur, kev tshawb fawb ntawm lithium-air roj teeb tseem nyob rau theem pib, thiab tsis muaj lub tuam txhab tau muab tso rau hauv kev lag luam loj hlob.

Magnesium roj teeb

Magnesium roj teeb yog lub roj teeb tseem ceeb nrog magnesium raws li qhov tsis zoo electrode thiab qee yam hlau lossis tsis yog hlau oxide raws li qhov zoo electrode. Piv nrog rau lithium roj teeb, magnesium ion roj teeb muaj kev ruaj ntseg zoo dua thiab ua haujlwm ntev dua. Vim tias magnesium yog cov khoom sib txawv, nws qhov zoo dua