LG Chem tab tom sim lithium-sulfur (Li-S) hlwb. "Serial ntau lawm tom qab 2025"

Peb koom LG Chem feem ntau nrog cov classic lithium-ion hlwb uas tau siv dav hauv tsheb fais fab. Txawm li cas los xij, lub tuam txhab tab tom sim nrog lwm cov kev daws teeb meem xws li lithium sulfur hlwb. Cov txiaj ntsig tau cog lus tseg, kev tsim khoom loj tuaj yeem ua tau nyob rau hauv ib nrab ntawm lub xyoo caum.

Unmanned aerial tsheb nrog Li-S roj teeb tawg cov ntaub ntawv davhlau hauv stratosphere

Lub koom haum South Kauslim rau Kev Tshawb Fawb Huab Cua tau tsim EAV-3 lub tsheb tsis muaj neeg tsav dav hlau. Nws siv cov hlwb Li-S tshiab tsim los ntawm LG Chem. Thaum lub sij hawm 13-teev kev sim siv los ntawm EAV-3 roj teeb, nws ya mus rau 7 teev nyob rau hauv lub stratosphere ntawm qhov siab ntawm 12 mus rau 22 kilometers. Yog li, nws tsoo cov ntaub ntawv rau qhov siab tshaj ntawm lub davhlau ntawm lub tsheb tsis muaj neeg tsav tsheb (qhov chaw).

Classic lithium-ion hlwb muaj graphite lossis graphite anodes doped nrog silicon. Li-S hlwb tsim los ntawm LG Chem yog raws li carbon sulfur anodes. Peb tsuas kawm txog cathodes uas siv lithium, yog li lawv tuaj yeem ua NCM cathodes. Cov chaw tsim tshuaj paus tsis tau nthuav tawm ib qho kev qhia ntxiv ntawm cov hlwb, tab sis hais tias ua tsaug rau kev siv cov sulfur (gravimetric), lub zog ceev ntawm cov hlwb yog "ntau dua 1,5 npaug" ntau dua li ntawm lithium-ion hlwb.

Qhov no yog qhov tsawg kawg nkaus ntawm 0,38 kWh / kg.

LG Chem tau tshaj tawm tias nws yuav tsim cov qauv ntawm tes tshiab uas tuaj yeem ua lub zog rau lub dav hlau tau ob peb hnub. Yog li ntawd, nws yog ib qho yooj yim los txiav txim siab tias cov chaw tsim khoom tseem tsis tau daws qhov teeb meem ntawm sulfur dissolution hauv cov electrolyte thiab kev degradation sai ntawm Li-S roj teeb - muaj photocells ntawm tis, yog li tsis muaj zog.

Txawm li cas los xij Lub tuam txhab cia siab tias yuav loj hlob ntawm lithium sulfur hlwb yuav pib tom qab 2025.... Lawv yuav muaj lub zog ceev ob npaug ntawm lithium-ion hlwb.