Tam sim no, cov roj teeb lithium ion tau ua lub luag haujlwm tseem ceeb hauv tib neeg lub neej, tab sis tseem muaj qee qhov teeb meem hauv kev siv roj teeb lithium. Qhov laj thawj tseem ceeb yog tias cov electrolyte siv hauv cov roj teeb lithium yog lithium hexafluorophosphate, uas rhiab heev rau cov dej noo thiab muaj kev ua haujlwm kub siab. Cov khoom tsis ruaj khov thiab cov khoom lwj yog corrosive rau cov khoom siv electrode, ua rau muaj kev nyab xeeb tsis zoo ntawm cov roj teeb lithium. Tib lub sijhawm, LiPF6 kuj muaj teeb meem xws li solubility tsis zoo thiab conductivity qis hauv qhov chaw kub qis, uas tsis tuaj yeem ua tau raws li kev siv cov roj teeb lithium fais fab. Yog li ntawd, nws yog ib qho tseem ceeb heev rau kev tsim cov electrolyte lithium ntsev tshiab nrog kev ua tau zoo heev.
Txog tam sim no, cov tsev tshawb fawb tau tsim ntau yam electrolyte lithium ntsev tshiab, cov uas sawv cev ntau dua yog lithium tetrafluoroborate thiab lithium bis-oxalate borate. Ntawm lawv, lithium bis-oxalate borate tsis yooj yim rau decompose ntawm qhov kub siab, tsis muaj kev cuam tshuam rau cov dej noo, cov txheej txheem synthesis yooj yim, tsis muaj. Nws muaj qhov zoo ntawm kev ua qias tuaj, electrochemical stability, qhov rai dav, thiab lub peev xwm los tsim ib zaj duab xis SEI zoo ntawm qhov chaw ntawm cov electrode tsis zoo, tab sis qhov solubility qis ntawm electrolyte hauv cov kuab tshuaj linear carbonate ua rau nws cov conductivity qis, tshwj xeeb tshaj yog nws qhov kev ua tau zoo kub qis. Tom qab kev tshawb fawb, nws tau pom tias lithium tetrafluoroborate muaj solubility loj hauv cov kuab tshuaj carbonate vim nws qhov me me molecular, uas tuaj yeem txhim kho qhov kev ua tau zoo qis-kub ntawm cov roj teeb lithium, tab sis nws tsis tuaj yeem tsim ib zaj duab xis SEI ntawm qhov chaw ntawm cov electrode tsis zoo. Cov electrolyte lithium ntsev lithium difluorooxalate borate, raws li nws cov yam ntxwv ntawm cov qauv, lithium difluorooxalate borate sib xyaw cov txiaj ntsig ntawm lithium tetrafluoroborate thiab lithium bis-oxalate borate hauv cov qauv thiab kev ua tau zoo, tsis yog tsuas yog hauv cov kuab tshuaj linear carbonate. Tib lub sijhawm, nws tuaj yeem txo qhov viscosity ntawm cov electrolyte thiab ua rau muaj kev coj ua hluav taws xob ntau dua, yog li ntawd txhim kho qhov kev ua haujlwm kub qis thiab kev ua haujlwm ntawm cov roj teeb lithium ion. Lithium difluorooxalate borate kuj tseem tuaj yeem tsim ib txheej ntawm cov khoom siv ntawm qhov chaw ntawm cov electrode tsis zoo xws li lithium bioxalate borate. Ib zaj duab xis SEI zoo yog qhov loj dua.
Vinyl sulfate, lwm yam tshuaj ntxiv uas tsis yog lithium ntsev, kuj yog ib qho tshuaj ntxiv rau SEI zaj duab xis, uas tuaj yeem tiv thaiv kev txo qis ntawm lub peev xwm pib ntawm lub roj teeb, ua rau lub peev xwm tso tawm thawj zaug nce ntxiv, txo qhov nthuav dav ntawm lub roj teeb tom qab muab tso rau ntawm qhov kub siab, thiab txhim kho kev ua haujlwm ntawm lub roj teeb, uas yog, tus lej ntawm lub voj voog. . Yog li ntawd, ua rau lub roj teeb muaj zog ntev dua thiab ua rau lub roj teeb siv tau ntev dua. Yog li ntawd, kev cia siab ntawm cov tshuaj ntxiv electrolyte tau txais kev saib xyuas ntau dua, thiab kev thov ntawm kev ua lag luam nce ntxiv.
Raws li "Industrial Structure Adjustment Guidance Guidance Catalog (2019 Edition)", cov electrolyte additives ntawm qhov project no yog raws li thawj ntu ntawm pawg txhawb nqa, Tshooj 5 (lub zog tshiab), taw tes 16 "kev tsim kho thiab kev siv cov thev naus laus zis tshiab ntawm lub zog txawb", Tshooj 11 (Petrochemical chemical industry) taw tes 12 "hloov kho, cov nplaum raws li dej thiab cov nplaum kub tshiab, cov dej nqus dej zoo rau ib puag ncig, cov neeg sawv cev kho dej, molecular sieve solid mercury, mercury-free thiab lwm yam tshiab ua haujlwm zoo thiab zoo rau ib puag ncig catalysts thiab additives, nanomaterials, Kev tsim kho thiab kev tsim cov ntaub ntawv membrane ua haujlwm, ultra-clean thiab high-purity reagents, photoresists, electronic gases, cov ntaub ntawv siv lead ua kua ua haujlwm siab thiab lwm yam tshuaj zoo tshiab; Raws li kev tshuaj xyuas thiab kev tshuaj xyuas ntawm lub tebchaws thiab hauv zos cov ntaub ntawv txoj cai kev lag luam xws li "Daim Ntawv Ceeb Toom ntawm Cov Lus Qhia Tsis Zoo rau Kev Txhim Kho Txoj Kev Lag Luam (rau Kev Siv Sim)" (Changjiang Office Document No. 89), nws tau txiav txim siab tias qhov project no tsis yog qhov project txwv lossis txwv tsis pub tsim kho.
Lub zog siv thaum qhov project ncav cuag lub peev xwm tsim khoom suav nrog hluav taws xob, pa dej thiab dej. Tam sim no, qhov project siv cov thev naus laus zis thiab cov khoom siv tsim khoom siab heev, thiab siv ntau yam kev ntsuas txuag hluav taws xob. Tom qab muab tso rau hauv kev siv, txhua qhov ntsuas kev siv hluav taws xob tau mus txog qib siab hauv tib lub lag luam hauv Suav teb, thiab ua raws li lub teb chaws thiab kev lag luam cov lus qhia tsim kev txuag hluav taws xob, cov qauv saib xyuas kev txuag hluav taws xob thiab cov khoom siv. Tus qauv kev ua haujlwm kev lag luam; tsuav yog qhov project siv ntau yam ntsuas kev siv hluav taws xob, cov ntsuas kev siv hluav taws xob ntawm cov khoom lag luam thiab cov ntsuas txuag hluav taws xob uas tau hais hauv daim ntawv tshaj tawm no thaum lub sijhawm tsim kho thiab tsim khoom, qhov project ua tau los ntawm qhov kev xav ntawm kev siv hluav taws xob tsim nyog. Raws li qhov no, nws tau txiav txim siab tias qhov project tsis cuam tshuam kev siv cov peev txheej online.
Tus qauv tsim ntawm qhov project yog: lithium difluorooxalate borate 200t/a, uas 200t/a lithium tetrafluoroborate yog siv ua cov khoom siv raw rau lithium difluorooxalate borate cov khoom, tsis tas yuav ua haujlwm tom qab, tab sis nws kuj tseem tuaj yeem tsim ua cov khoom tiav raws li kev thov ntawm kev ua lag luam. Vinyl sulfate yog 1000t/a. Saib Rooj 1.1-1
Rooj 1.1-1 Daim ntawv teev cov khoom daws teeb meem
| NO | LUB NPE | Cov qoob loo (t/ib) | Cov lus qhia txog kev ntim khoom | LUS CEEV |
| 1 | Lithium Fluoromyramramidine | 200 | 25 kg,50 kg,200kg | Ntawm lawv, kwv yees li 140T lithium tetrafluorosylramine yog siv los ua ib qho nruab nrab los tsim cov lithium boric acid boric acid |
| 2 | Lithium fluorophytic acid boric acid | 200 | 25 kg,50 kg,200 kg | |
| 3 | Sulfate | 1000 | 25 kg,50 kg,200 kg |
Cov qauv zoo ntawm cov khoom tau qhia nyob rau hauv Rooj 1.1-2 ~ 1.1-4.
Rooj 1..1-2 Lithium Tetrafluoroborate Qhov Zoo Index
| NO | YAM KHOOM | Cov Ntawv Qhia Txog Kev Zoo |
| 1 | Qhov tsos | Hmoov dawb
|
| 2 | Qhov qhab nia zoo% | ≥99.9 |
| 3 | Dej,ppm | ≤100 |
| 4 | Fluorine,ppm | ≤100 |
| 5 | Tshuaj Chlorine,ppm | ≤10 |
| 6 | Sulfate,ppm | ≤100 |
| 7 | Sodium (Na), ppm | ≤20 |
| 8 | Potassium (K), ppm | ≤10 |
| 9 | Hlau (Fe), ppm | ≤1 |
| 10 | Calcium (Ca), ppm | ≤10 |
| 11 | Tooj liab (Cu), ppm | ≤1 |
1.1-3 Cov Cim Qhia Txog Kev Zoo ntawm Lithium Borate
| NO | YAM KHOOM | Cov Ntawv Qhia Txog Kev Zoo |
| 1 | Qhov tsos | Hmoov dawb |
| 2 | Cov hauv paus oxalate (C2O4) cov ntsiab lus w/% | ≥3.5 |
| 3 | Cov ntsiab lus Boron (b) w/% | ≥88.5 |
| 4 | Dej, mg/kg | ≤300 |
| 5 | sodium (Na)/(mg/kg) | ≤20 |
| 6 | Potassium (K)/(mg/kg) | ≤10 |
| 7 | calcium (Ca)/(mg/kg) | ≤15 |
| 8 | magnesium (Mg)/(mg/kg) | ≤10 |
| 9 | hlau (Fe)/(mg/kg) | ≤20 |
| 10 | chloride ( Cl )/(mg/kg) | ≤20 |
| 11 | Sulfate ((SO4 ))/(mg/kg) | ≤20 |
| NO | YAM KHOOM | Cov Ntawv Qhia Txog Kev Zoo |
| 1 | Qhov tsos | Hmoov dawb |
| 2 | Kev huv huv% | ≥99.5 |
| 4 | Dej,mg/kg | ≤70 |
| 5 | Cov tshuaj chlorine dawb mg/kg | ≤10 |
| 6 | Cov kua qaub dawb mg/kg | ≤45 |
| 7 | sodium (Na)/(mg/kg) | ≤10 |
| 8 | Potassium (K)/(mg/kg) | ≤10 |
| 9 | Calcium (Ca)/(mg/kg) | ≤10 |
| 10 | Nickel (Nickel)Ni)/(mg/kg) | ≤10 |
| 11 | Hlau (Fe)/(mg/kg) | ≤10 |
| 12 | Tooj liab (Cu)/(mg/kg) | ≤10 |
Lub sijhawm tshaj tawm: Lub Yim Hli-26-2022