Txheej txheem cej luam ntawm txoj kev loj hlob ntawmLithium roj teeb electrolyte,
Lithium roj teeb electrolyte,

▍ Cov Txheej Txheem Kev Sau Npe (CRS)

Ministry of Electronics & Information Technology tso tawmCov Khoom Siv Hluav Taws Xob & Cov Ntaub Ntawv Technology Cov Khoom Siv-Yuav tsum muaj rau Kev Sau Npe Nkag Nkag I- Ceeb toom rau 7^thLub Cuaj Hli, 2012, thiab nws tau pib siv rau 3^rdLub Kaum Hli, 2013. Cov Khoom Siv Hluav Taws Xob & Cov Ntaub Ntawv Technology Cov Khoom Yuav Tsum Tau Txais Kev Sau Npe, feem ntau hu ua BIS certification, yog hu ua CRS rau npe / ntawv pov thawj. Tag nrho cov khoom siv hluav taws xob hauv cov khoom lag luam sau npe yuav tsum tau xa tuaj rau Is Nrias teb lossis muag hauv khw Indian yuav tsum tau sau npe hauv Bureau of Indian Standards (BIS). Thaum lub Kaum Ib Hlis 2014, 15 yam khoom uas yuav tsum tau sau npe tau ntxiv. Cov pawg tshiab suav nrog: xov tooj ntawm tes, roj teeb, lub tsev txhab nyiaj fais fab, cov khoom siv hluav taws xob, LED teeb thiab cov chaw muag khoom, thiab lwm yam.

▍ BIS Battery Test Standard

Nickel system cell / roj teeb: IS 16046 (Part 1): 2018 / IEC62133-1: 2017

Lithium cell cell / roj teeb: IS 16046 (Part 2): 2018 / IEC62133-2: 2017

Npib cell / roj teeb muaj nyob rau hauv CRS.

▍ Vim li cas MCM?

● Peb tau tsom mus rau Indian ntawv pov thawj rau ntau tshaj 5 xyoo thiab pab cov neeg tau txais lub ntiaj teb thawj roj teeb tsab ntawv BIS. Thiab peb muaj cov kev paub dhau los thiab cov peev txheej tsim nyog hauv BIS daim ntawv pov thawj.

● Yav dhau los cov tub ceev xwm laus ntawm Bureau of Indian Standards (BIS) tau ua haujlwm ua tus kws pab tswv yim muab ntawv pov thawj, los xyuas kom meej cov ntaub ntawv ua tau zoo thiab tshem tawm qhov kev pheej hmoo ntawm kev rho npe tus lej.

● Nruab nrog muaj kev paub daws teeb meem kev txawj ntse hauv daim ntawv pov thawj, peb muab cov peev txheej hauv paus txawm hauv Is Nrias teb. MCM khaws kev sib txuas lus zoo nrog BIS cov tub ceev xwm los muab cov neeg siv khoom nrog cov kev txiav txim siab tshaj plaws, cov ntaub ntawv tshaj lij thiab cov ntaub ntawv pov thawj feem ntau thiab cov kev pabcuam.

● Peb pabcuam cov tuam txhab ua lag luam hauv ntau yam kev lag luam thiab tau txais lub koob npe nrov hauv kev ua haujlwm, uas ua rau peb muaj kev ntseeg siab thiab txhawb nqa los ntawm cov neeg siv khoom.

Nyob rau hauv 1800, tus Italian physicist A. Volta tau tsim lub voltaic pawg, uas tau qhib qhov pib ntawm lub tswv yim roj teeb thiab piav rau thawj lub sij hawm qhov tseem ceeb ntawm electrolyte nyob rau hauv electrochemical zog cia li. Cov electrolyte tuaj yeem pom tau tias yog ib qho hluav taws xob insulating thiab ion-conducting txheej nyob rau hauv daim ntawv ntawm cov kua los yog khoom, ntxig rau ntawm qhov tsis zoo thiab zoo electrodes. Tam sim no, cov khoom siv hluav taws xob zoo tshaj plaws yog tsim los ntawm kev ua kom cov roj lithium ntsev (xws li LiPF6) hauv cov kuab tshuaj organic carbonate uas tsis muaj dej (xws li EC thiab DMC). Raws li cov qauv ntawm tes thiab tsim qauv, cov electrolyte feem ntau suav rau 8% mus rau 15% ntawm qhov hnyav ntawm tes. Dab tsi ntxiv, nws qhov flammability thiab pom kev ua haujlwm kub ntawm -10 ° C txog 60 ° C zoo heev cuam tshuam kev txhim kho ntxiv ntawm roj teeb lub zog ceev thiab kev nyab xeeb. Yog li ntawd, cov txheej txheem tshiab electrolyte raug suav tias yog qhov tseem ceeb rau kev txhim kho cov roj teeb tshiab tiam tom ntej.
Cov kws tshawb fawb tseem tab tom ua haujlwm los tsim cov tshuab electrolyte sib txawv. Piv txwv li, kev siv cov kuab tshuaj fluorinated uas muaj peev xwm ua tau zoo lithium hlau cycling, organic lossis inorganic khoom electrolytes uas muaj txiaj ntsig zoo rau kev lag luam tsheb thiab "cov roj teeb hauv lub xeev" (SSB). Lub ntsiab yog vim li cas yog hais tias cov khoom electrolyte hloov cov thawj cov kua electrolyte thiab diaphragm, kev nyab xeeb, ib lub zog ceev thiab lub neej ntawm lub roj teeb yuav ua tau zoo dua. Tom ntej no, peb tsuas yog sau cov ntsiab lus ntawm kev tshawb fawb ntawm cov khoom electrolytes nrog cov khoom sib txawv.
Inorganic khoom electrolytes tau siv nyob rau hauv kev lag luam electrochemical zog cia khoom, xws li ib co high-temperature rechargeable roj teeb Na-S, Na-NiCl2 roj teeb thiab thawj Li-I2 roj teeb. Rov qab rau xyoo 2019, Hitachi Zosen (Nyiv) tau nthuav tawm tag nrho cov khoom siv-lub xeev lub hnab roj teeb ntawm 140 mAh los siv rau hauv qhov chaw thiab sim ntawm International Chaw Nres Tsheb (ISS). Lub roj teeb no yog tsim los ntawm sulfide electrolyte thiab lwm yam roj teeb uas tsis tau qhia tawm, tuaj yeem ua haujlwm ntawm -40 ° C thiab 100 ° C. Hauv 2021 lub tuam txhab tab tom qhia lub peev xwm ntau dua cov roj teeb ntawm 1,000 mAh. Hitachi Zosen pom qhov kev xav tau ntawm cov roj teeb khoom siv rau qhov chaw hnyav xws li qhov chaw thiab cov cuab yeej siv ua haujlwm hauv ib puag ncig ib puag ncig. Lub tuam txhab npaj yuav muab ob npaug rau lub roj teeb muaj peev xwm los ntawm 2025. Tab sis txog tam sim no, tsis muaj cov khoom lag luam tawm hauv lub xeev cov roj teeb uas tuaj yeem siv rau hauv tsheb fais fab.