Yuav ua li cas npaj cov roj teeb lithium ion uas tsis tshua muaj kub uas tuaj yeem ua haujlwm ib txwm nyob ntawm qhov kub ntawm 60 ° C?

Tsis ntev los no, Ding Jianning ntawm Jiangsu University thiab lwm tus tau siv lithium hlau phosphate coated mesoporous carbon raws li ib tug zoo electrode cov ntaub ntawv thiab ib tug nyuaj carbon cov khoom nplua nuj nyob rau hauv mesoporous qauv npaj los ntawm electrospinning technology raws li ib tug tsis zoo electrode khoom. Lithium bistrifluoromethanesulfonimide LiTFSi ntsev thiab cov electrolyte ntawm DIOX (1,3-dioxane) + EC (ethylene carbonate) + VC (vinylidene carbonate) cov kuab tshuaj yog sib sau ua ke rau hauv lithium-ion roj teeb. Cov khoom siv roj teeb ntawm lub roj teeb ntawm cov khoom tsim muaj cov yam ntxwv zoo ion kis tau tus mob thiab cov yam ntxwv ntawm lithium ions sai sai, nrog rau qhov kub thiab txias electrolyte uas tswj cov kev ua tau zoo ntawm qhov kub thiab txias, kom ntseeg tau tias lub roj teeb tseem tuaj yeem ua haujlwm ib txwm nyob ntawm qhov qis 60 °. C.

Raws li cov thev naus laus zis loj tshaj plaws hauv kev lag luam roj teeb, cov pej xeem zoo siab txais tos cov roj teeb lithium-ion rau lawv cov kev ua haujlwm siab, lub zog siab ceev, lub neej ntev, tsis tshua muaj paug, tsis muaj kev nco, thiab "ntsuab" kev tiv thaiv ib puag ncig. Kev lag luam kuj tau nqis peev ntau rau kev tshawb fawb. Muaj ntau thiab ntau kev tshawb fawb txog lithium ions uas tuaj yeem hloov mus rau qhov kub thiab txias. Txawm li cas los xij, nyob rau hauv ib puag ncig uas tsis muaj qhov kub thiab txias, qhov viscosity ntawm cov electrolyte yuav nce siab, thiab nws yuav ua kom lub zog ntawm lithium-ion roj teeb ntawm cov khoom siv electrode. Tsis tas li ntawd, cov electrolyte yuav zoo ntawm qhov kub thiab txias. SEI txheej tsim nyob rau hauv qhov tsis zoo electrode yuav dhau ib theem hloov thiab ua tsis ruaj tsis khov. Yog li ntawd, cov khoom siv hluav taws xob zoo thiab tsis zoo hauv qhov kev tsim tawm tam sim no muab qhov chaw tsim SEI ruaj khov dua, qhov kev sib kis luv dua, thiab cov khoom siv hluav taws xob nrog qis viscosity ntawm qhov kub thiab txias, paub txog lub roj teeb lithium uas tseem tuaj yeem ua haujlwm ntawm qhov kub thiab txias. ntawm 60 ° C. . Cov teeb meem kev lag luam yuav tsum tau daws los ntawm kev tsim khoom yog kom kov yeej qhov kev txwv ntawm kev siv cov khoom siv roj teeb lithium nyob rau hauv qhov chaw qis thiab qhov teeb meem ntawm cov viscosity siab ntawm cov pa electrolytes ntawm qhov kub thiab txias thiab tsis tshua muaj ion zog, thiab muab cov nqi them siab. thiab tso tawm ntawm qhov kub thiab txias Lub lithium-ion roj teeb thiab cov txheej txheem kev npaj ntawm no siv cov lithium-ion roj teeb kom ua tiav cov nqi zoo thiab kev ua haujlwm tawm ntawm qhov kub qis.

Daim duab 1 Kev sib piv ntawm electrochemical kev ua tau zoo ntawm low-temperature lithium-ion roj teeb ntawm chav tsev kub thiab tsis kub.

Cov txiaj ntsig zoo ntawm kev tsim khoom yog tias thaum cov khoom siv hluav taws xob tsis zoo siv los ua ib daim ntawv electrode, tsis tas yuav muaj binder. Nws yuav tsis txo cov conductivity, thiab nws yuav txhim khu tus nqi ntawm kev ua tau zoo.

Daim ntawv txuas: cov ntaub ntawv patent

Patent npe: Txoj kev npaj ntawm ultra-low kub lithium-ion roj teeb uas feem ntau tuaj yeem ua haujlwm ntawm rho tawm 60 ° C

Daim ntawv tshaj tawm xov tooj CN 109980195 A

Daim ntawv tshaj tawm hnub tim 2019.07.05

Daim ntawv thov 201910179588 .4

Hnub kawg rau kev thov 2019.03.11

Thov Jiangsu University

Inventor Ding Jianning Xu Jiang Yuan Ningyi Cheng Guanggui