Yuav ua li cas ib nrab crush test ua rau cell deactivation,
Yuav ua li cas ib nrab crush test ua rau cell deactivation,

▍ ANATEL Homologation yog dab tsi?

ANATEL yog luv luv rau Agencia Nacional de Telecomunicacoes uas yog Brazil tsoomfwv txoj cai tswjfwm kev sib txuas lus cov khoom lag luam rau ob qho tib si yuav tsum tau lees paub thiab yeem daim ntawv pov thawj. Nws cov kev pom zoo thiab kev ua raws cai yog tib yam rau Brazil cov khoom siv hauv tsev thiab txawv teb chaws. Yog tias cov khoom muaj feem xyuam rau cov ntawv pov thawj uas yuav tsum tau ua, cov ntawv xeem thiab daim ntawv tshaj tawm yuav tsum ua raws li cov cai thiab cov cai uas tau thov los ntawm ANATEL. Daim ntawv pov thawj khoom yuav tsum tau tso cai los ntawm ANATEL ua ntej cov khoom lag luam nthuav tawm hauv kev lag luam thiab muab tso rau hauv daim ntawv thov.

▍ Leej twg yog tus lav rau ANATEL Homologation?

Lub koom haum Brazilian tsoomfwv tus qauv, lwm lub koom haum lees paub thiab cov chaw kuaj sim yog ANATEL daim ntawv pov thawj txoj cai rau kev tshuaj xyuas cov txheej txheem tsim khoom, xws li cov txheej txheem tsim khoom, kev yuav khoom, txheej txheem tsim khoom, tom qab kev pabcuam thiab lwm yam txhawm rau txheeb xyuas cov khoom siv lub cev kom ua raws. nrog Brazil tus qauv. Tus neeg tsim khoom yuav tsum muab cov ntaub ntawv thiab cov qauv rau kev sim thiab ntsuas.

▍ Vim li cas MCM?

● MCM muaj 10 xyoo kev paub dhau los thiab cov peev txheej hauv kev sim thiab ntawv pov thawj kev lag luam: cov kev pabcuam zoo, pab pawg ua haujlwm tau zoo, ceev thiab yooj yim daim ntawv pov thawj thiab cov kev daws teeb meem.

● MCM koom tes nrog ntau lub koom haum zoo hauv zos uas tau lees paub los muab ntau yam kev daws teeb meem, kev pabcuam raug thiab yooj yim rau cov neeg siv khoom.

Crush yog qhov kev sim zoo heev los xyuas qhov kev nyab xeeb ntawm cov hlwb, simulating kev sib tsoo ntawm cov hlwb lossis cov khoom siv kawg hauv kev siv txhua hnub. Feem ntau muaj ob hom kev xeem crush: tiaj tus crush thiab ib nrab crush. Piv nrog rau lub tiaj tus crush, ib feem ntawm qhov indentation tshwm sim los ntawm ib tug kheej kheej los yog cylindrical indenter feem ntau yuav ua rau lub cell tsis zoo. Lub sharper lub indenter, qhov ntau concentrated qhov kev ntxhov siab nyob rau hauv cov tub ntxhais qauv ntawm lithium roj teeb, qhov loj dua lub rupture ntawm lub puab core, uas yuav ua rau deformation thiab txav ntawm cov tub ntxhais, thiab txawm ua rau loj txim xws li electrolyte to los yog txawm hluav taws. Yog li yuav ua li cas crush coj mus rau lub deactivation ntawm tes? Ntawm no qhia koj txog cov qauv kev hloov pauv ntawm cov tub ntxhais hauv lub zos extrusion xeem.Lub zog squeezing yog siv rau lub cell enclosure ua ntej, thiab cov enclosure deforms. Tom qab ntawd lub zog raug xa mus rau sab hauv ntawm lub roj teeb, thiab lub xov tooj ntawm tes sib dhos kuj pib deform.
 Nrog ntxiv compression ntawm lub taub hau crushing, lub deformation yog expanding thiab localization yog tsim. Nyob rau tib lub sijhawm, txheej sib nrug ntawm txhua txheej electrode yog maj mam shortened. Nyob rau hauv tas li ntawd compression, lub tam sim no collector yog khoov thiab deformed, thiab shear bands yog tsim. Thaum lub deformation ntawm cov khoom siv electrode mus txog qhov txwv, cov khoom siv electrode yuav tsim cov kab nrib pleb.
 Nrog rau qhov nce ntawm deformation, qhov tawg maj mam txuas mus rau cov khoom siv tam sim no, uas yuav raug torn thiab tsim cov pob txha tawg. Tsis tas li ntawd, radial tawg yog elongated vim qhov nce ntawm kev ntxhov siab thiab radial hloov chaw.