Thaum Lub Tsib Hlis 16th, 4th Tshiab Zog Tsheb thiab Lub Zog Roj Teeb (CIBF2023 Shenzhen) Lub Rooj Sib Tham Thoob Ntiaj Teb Kev Sib Tham tau nthuav dav ntawm Shenzhen International Convention thiab Exhibition Center (Tswb Hall).
Nyob rau hauv seem qhib ceremony, tus thawj coj ntawm lub rooj sib tham no, Academician ntawm Suav Academy ntawm Sciences, Ouyang Minggao, tau hais lus tseem ceeb. Nws tau hais tias feem ntau, cov roj teeb lithium hlau phosphate raug suav hais tias muaj kev nyab xeeb, thiab qhov tseem ceeb, qhov no muaj tseeb rau cov roj teeb lithium hlau phosphate me me. Txawm li cas los xij, rau cov roj teeb muaj peev xwm loj, qhov ntsuas kub sab hauv tuaj yeem tshaj 800 degrees, uas tshaj qhov kub rau qhov decomposition ntawm cov khoom zoo electrode ntawm lithium hlau phosphate.
Rau cov roj teeb me me, vim tias muaj cov tshuaj tiv thaiv kab mob nrog kev faib tawm, cov khoom siv hluav taws xob zoo tsuas yog pib decompose thaum nws nce mus txog 500 degrees, yog li cov roj teeb me me tsis nyob hauv qhov ntau. Tab sis cov roj teeb loj ampere-teev tuaj yeem ncav cuag 700-900 degrees, uas tuaj yeem tawg thiab hla qhov kev faib no, ua rau cov khoom tawg ntawm cov khoom zoo electrode. Tam sim no lub zog cia roj teeb yog qhov tseem ceeb tshaj 300 ampere-teev, uas tseem txaus ntshai heev.
Saib dua ntawm cov roj tsim tawm ntawm lithium hlau phosphate, cov khoom tsim hydrogen yuav maj mam nce, thiab nrog kev nce ntawm SOC, hydrogen.cov ntsiab lusyog ntau tshaj 50%, uas kuj yog heev txaus ntshai. Tsis tas li ntawd, kev sib piv cov hluav taws kub thiab tawg txaus ntshai ntawm ob hom roj teeb, qhov ntsuas kub thiab tawg ntawm lithium hlau phosphate roj teeb yog ob npaug ntawm cov roj teeb ternary. Ternary roj teeb yog nquag ua rau thermal runaway thiab teeb lawv tus kheej. Cov roj teeb lithium hlau phosphate tsis tuaj yeem teeb lawv tus kheej, tab sis qhov kev pheej hmoo ntawm cov pa tawg yog siab dua li ntawm ternary roj teeb. Thaum nws ntsib sparks sab nraud, nws yog qhov txaus ntshai dua.
Peb tsim tshiab600W, 1200W, thiab 2000W portable zog skev ua haujlwmstam sim no tshwj xeeb hauv kev ua lag luam thiab tsuas yog cov uas siv manganese lithium cov hnab me me. Qhov laj thawj ntawm kev txiav txim siab qhov kev xaiv no yog raws li qhov kawg ntawm kev nrhiav kev nyab xeeb. Los ntawm kev xaiv manganese lithium, cov khoom siv tshwj xeeb no los ua cov pob mos me me, nws tuaj yeem txo qhov kev pheej hmoo ntawm kev nyab xeeb thiab xyuas kom meej tias nws tuaj yeem muab cov neeg siv nrog kev ruaj ntseg lav kev ruaj ntseg hauv ntau yam kev pab cuam, zam qhov xwm txheej txaus ntshai xws li roj tawg uas yuav tshwm sim loj. ib leeg thiab muaj peev xwm loj lithium hlau phosphate roj teeb, nrog rau cov kev phom sij zais cia los ntawm tus kheej-thermal runaway ntawm ternary roj teeb, yog li tsim kom muaj kev thaj yeeb nyab xeeb thiab tsis muaj kev txhawj xeeb rau cov neeg siv khoom.
