Research onDirect CurrentResistance,
Direct Current,

▍Vietnam MIC Certification

Circular 42/2016/TT-BTTTT yakataura kuti mabhatiri akaiswa munharembozha, mahwendefa nemabhuku ekunyorera haabvumidzwe kuendeswa kunze kwenyika kuVietnam kunze kwekunge aiswa pasi peDoC certifctaion kubvira Oct.1,2016. DoC inozodikanwawo kupa kana uchinyorera Type Mvumo yezvigadzirwa zvekupedzisira (nharembozha, mahwendefa nemabhuku ekunyorera).

MIC yakaburitsa Circular 04/2018/TT-BTTT itsva muna Chivabvu, 2018 iyo inoti hapasisina IEC 62133:2012 mushumo wakabudiswa nerabhoritari yemhiri kwemakungwa yakatenderwa inogamuchirwa muna Chikunguru 1, 2018. Kuongororwa kwenzvimbo kunodiwa paunenge uchinyorera chitupa cheADoC.

▍ Testing Standard

QCVN101: 2016/BTTT(inongedza kuIEC 62133:2012)

▍PQIR

Hurumende yeVietnam yakapa chirevo chitsva No. 74/2018 / ND-CP musi wa15 Chivabvu, 2018 kuti vataure kuti marudzi maviri ezvigadzirwa zvinotengeswa kunze kwenyika kuVietnam zviri pasi pePQIR (Product Quality Inspection Registration) application painounzwa kuVietnam.

Zvichienderana nemutemo uyu, Ministry of Information and Communication (MIC) yekuVietnam yakapa gwaro repamutemo 2305/BTTTT-CVT musi waChikunguru 1, 2018, richitaura kuti zvigadzirwa zviri pasi payo (kusanganisira mabhatiri) zvinofanirwa kuiswa kuPQIR kana zvichitengeswa kunze kwenyika. kuVietnam. SDoC ichaendeswa kuti ipedze hurongwa hwekubvisa tsika. Zuva repamutemo rekupinda musimba remutemo uyu ndiAugust 10, 2018. PQIR inoshandiswa kune imwe chete inotengeswa kuVietnam, ndiko kuti, nguva dzose apo mutengesi anopinza zvinhu kunze kwenyika, achanyorera PQIR (batch inspection) + SDoC.

Nekudaro, kune vanotenga kunze kwenyika vari kukurumidza kupinza zvinhu kunze kweSDOC, VNTA ichaongorora PQIR kwenguva pfupi uye kufambisa kubvumidzwa kwetsika. Asi vanotenga kunze kwenyika vanofanirwa kuendesa SDoC kuVNTA kuti vapedze hurongwa hwese hwekubvisa tsika mukati memazuva gumi nemashanu ekushanda mushure mekubvumidzwa kwetsika. (VNTA haichabudisi yekare ADOC inongoshanda kuVietnam Local Manufacturers)

▍ Neiko MCM?

● Anogovera Mashoko Azvino

● Co-muvambi weQuacert bhatiri yekuongorora laboratori

MCM nokudaro inova yega mumiriri weiyi lab muMainland China, Hong Kong, Macau neTaiwan.

● One-stop Agency Service

MCM, yakanakira imwe-stop agency, inopa kuyedzwa, chitupa uye sevhisi sevhisi kune vatengi.

Panguva yekuchaja uye kuburitsa mabhatiri, kugona kuchave kwakakonzerwa nekuwedzeredza kunokonzerwa nekupikiswa kwemukati. Seyakakosha parameter yebhatiri, kuramba kwemukati kwakakodzera kutsvagisa yekuongorora kuparara kwebhatiri. Kurwisana kwemukati kwebheteri kunosanganisira: Ohm mukati mekudzivirira (RΩ) -Kurwisana kubva kumatabo, electrolyte, separator uye zvimwe zvikamu.Charges transmission internal resistance (Rct) - Kurwisana kweion passing tabs uye electrolyte. Izvi zvinomiririra kuoma kwemaitiro ematabo. Kazhinji tinogona kuwedzera conductivity kuderedza kushorwa uku.Polarization Resistance (Rmt) ndiko kupikisa kwemukati kunokonzerwa nekuwanda kusaenzana kwe lithium ions pakati pe cathode uye anode. Polarization Resistance ichave yakakwirira mumamiriro ezvinhu akafanana nekuchaja mutembiricha yakaderera kana yakakwirira yakatemerwa charge.Kazhinji tinoyera ACIR kana DCIR. ACIR ndiko kupikisa kwemukati kuyerwa mu1k Hz AC ikozvino. Uku kupikisa kwemukati kunozivikanwawo seOhm resistance. Iko kushomeka kweiyo data ndeyekuti haigone kuratidza zvakananga kuita kwebhatiri. DCIR inoyerwa nekumanikidzirwa nguva dzese munguva pfupi, umo voltage inoramba ichichinja. Kana iyo pakarepo ikozvino ndiri ini, uye shanduko yemagetsi munguva pfupi iri ΔＵ, maererano neOhm mutemo Ｒ＝ΔＵ／Ｉ Tinogona kuwana DCIR. DCIR haisi yeOm chete yemukati kuramba, asiwo kuchaja kutamisa kuramba uye polarization kuramba.
Zvinogara zvichinetsa pakutsvaga kweDCIR yebhatiri ye lithium-ion. Imhaka yekuti kuramba kwemukati kwerithium-ion bhatiri idiki kwazvo, kazhinji ingori imwe mΩ. Zvichakadaro sechikamu chinoshanda, zvakaoma kuyera kupikisa kwemukati zvakananga. Kunze kwezvo, kupikisa kwemukati kunokonzerwa nemamiriro ekunze, senge tembiricha uye mamiriro ekuchaja. Pazasi pane zviyero zvataurwa nezve nzira yekuyedza DCIR.
International standard:
IEC 61960-3: 2017 maseru maseru uye mabhatiri ane alkaline kana mamwe asiri-asidhi electrolytes - Sekondari lithium masero uye mabhatiri ezvinotakurika maapplication - Chikamu 3: Prismatic uye cylindrical lithium yechipiri maseru nemabhatiri akagadzirwa kubva kwavari.
IEC 62620: 2014 Sekondari maseru uye mabhatiri ane alkaline kana mamwe asiri-asidhi electrolytes - Sekondari lithium masero uye mabhatiri ekushandiswa mumaindasitiri maapplication.