Kev Tshawb Fawb Tshiab hauv Kev Siv Tshuab Rov Qab Siv Roj Teeb Lithium-Ion

Ib txoj kev tshawb fawb tsis ntev los no tau luam tawm rau lub Xya Hli 29 hauv phau ntawv xov xwmCov Khoom Siv Ua Haujlwm Siab Tshaj Plawspiav qhia txog ib txoj kev ua sai, ua tau zoo, thiab tsis ua rau ib puag ncig puas tsuaj rau kev siv cov roj teeb lithium xaiv los ntawm kev siv hluav taws xob microwave thiab cov kuab tshuaj uas yooj yim lwj. Cov kws tshawb fawb ntawm Rice University hauv Tebchaws Meskas tau tsim cov txheej txheem tshiab no, uas tuaj yeem rov qab tau txog li 50% ntawm lithium los ntawm cov roj teeb lithium-ion (LIB) cathodes siv hauv 30 vib nas this xwb, daws qhov teeb meem loj hauv kev siv tshuab LIB rov ua dua tshiab.

Tam sim no, qhov kev thov rau lithium, ib qho hlau dawb-nyiaj, tab tom nce siab, ntau dua li qhov muaj.

Cov txheej txheem ib txwm siv los rov qab tau lithium los ntawm cov roj teeb uas siv tas lawm yog qhov ua rau ib puag ncig puas tsuaj thiab tsis ua haujlwm zoo. Cov teeb meem tseem ceeb suav nrog kev ua qias tuaj thiab kev poob ntawm lithium thaum lub sijhawm rov qab tau, nrog rau kev siv hluav taws xob ntau. Vim tias lithium feem ntau yog rho tawm tom qab lwm cov hlau, cov kws tshawb fawb tau nrhiav cov txheej txheem tshwj xeeb rau kev rov qab tau lithium.

Hauv kev tshawb fawb no, cov kws tshawb fawb tau siv cov tshuaj sib xyaw ntawm choline chloride thiab ethylene glycol ua cov tshuaj eutectic tob (DES). Yav dhau los lawv tau pom tias thaum lub sijhawm leaching nrog DES, lithium ions raug puag ncig los ntawm chloride ions los ntawm choline chloride thiab leached rau hauv cov tshuaj.

Yuav kom tshem tawm lwm yam hlau xws li cobalt lossis nickel, ob qho tib si choline chloride thiab ethylene glycol yog qhov xav tau. Ntawm cov tshuaj no, tsuas yog choline chloride nqus tau cov microwaves zoo. Cov kws tshawb fawb tau muab cov roj teeb pov tseg rau hauv cov kuab tshuaj thiab siv cov hluav taws xob microwave, ua rau cov lithium xaiv tau los ntawm lwm yam hlau.

Siv cov hluav taws xob microwave hauv cov txheej txheem no zoo ib yam li kev ua kom cov zaub mov sov sai sai hauv lub qhov cub microwave hauv chav ua noj. Lub zog raug xa mus rau cov molecules ncaj qha, ua rau cov tshuaj tiv thaiv sai dua li cov txheej txheem ua kom sov ib txwm muaj.

Cov kws tshawb nrhiav pom tias nrog cov txheej txheem microwave, kev ntxuav 87% ntawm lithium siv sijhawm 15 feeb, thaum ua tiav tib qho kev rov qab los nrog kev kub da dej roj yuav tsum tau 12 teev. Txoj kev tshiab no txhim kho kev lag luam thiab kev cuam tshuam rau ib puag ncig ntawm kev siv roj teeb lithium-ion dua tshiab, muab kev daws teeb meem tshiab rau qhov teeb meem thoob ntiaj teb uas loj hlob tuaj.

Yog xav paub ntxiv txog kev lag luam thiab cov khoom, thov hu rau peb:
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