Bincike akanKai tsaye YanzuJuriya,
Kai tsaye Yanzu,

▍ Takaddar MIC ta Vietnam

Circular 42/2016/TT-BTTTT ya nuna cewa ba za a iya fitar da batura da aka sanya a cikin wayoyin hannu, kwamfutar hannu da litattafan rubutu zuwa Vietnam sai dai idan an ba su takaddun shaida na DoC tun Oktoba 1,2016. Hakanan za'a buƙaci DoC don bayarwa lokacin da ake nema Nau'in Amincewa don samfuran ƙarshe (wayoyin hannu, allunan da littattafan rubutu).

MIC ta fitar da sabon Circular 04/2018/TT-BTTTT a watan Mayu,2018 wanda ya nuna cewa ba a sake karɓar rahoton IEC 62133:2012 da aka ba da izini daga dakin gwaje-gwaje na ƙasashen waje a cikin Yuli 1, 2018. Gwajin gida ya zama dole yayin neman takardar shaidar ADoC.

▍Tsarin Gwaji

QCVN101: 2016/BTTTT (koma zuwa IEC 62133: 2012)

▍PQIR

Gwamnatin Vietnam ta ba da sabuwar doka mai lamba 74/2018 / ND-CP a ranar 15 ga Mayu, 2018 don nuna cewa nau'ikan samfuran guda biyu da aka shigo da su Vietnam suna ƙarƙashin aikace-aikacen PQIR (Product Quality Inspection Registration) lokacin da ake shigo da su Vietnam.

Dangane da wannan doka, Ma'aikatar Watsa Labarai da Sadarwa (MIC) na Vietnam ta ba da takardar hukuma 2305/BTTTT-CVT a ranar 1 ga Yuli, 2018, wanda ke nuna cewa samfuran da ke ƙarƙashin ikonta (ciki har da batura) dole ne a nemi PQIR lokacin da ake shigo da su. zuwa Vietnam. SDoC za a ƙaddamar da shi don kammala aikin cire kwastam. Ranar da aka fara aiki da wannan ƙa'idar ita ce 10 ga Agusta, 2018. PQIR ya dace da shigo da kaya guda ɗaya zuwa Vietnam, wato, duk lokacin da mai shigo da kaya ya shigo da kaya, zai nemi PQIR (duba batch) + SDoC.

Koyaya, ga masu shigo da kaya waɗanda ke gaggawar shigo da kaya ba tare da SDOC ba, VNTA za ta tabbatar da PQIR na ɗan lokaci tare da sauƙaƙe izinin kwastam. Amma masu shigo da kaya suna buƙatar gabatar da SDoC ga VNTA don kammala dukkan ayyukan kwastam a cikin kwanaki 15 na aiki bayan izinin kwastam. (VNTA ba za ta sake fitar da ADOC na baya ba wanda ke aiki ne kawai ga Masana'antun Gida na Vietnam)

▍Me yasa MCM?

● Mai Rarraba Sabbin Bayanai

● Co-kafa na Quacert dakin gwaje-gwaje baturi

MCM don haka ya zama wakilin wannan dakin gwaje-gwaje a kasar Sin, Hong Kong, Macau da Taiwan.

● Sabis na Hulɗa ɗaya

MCM, madaidaicin hukumar tasha ɗaya, tana ba da gwaji, takaddun shaida da sabis na wakili ga abokan ciniki.

Yayin caji da fitar da batura, ƙarfin zai yi tasiri ta hanyar wuce gona da iri da juriya na ciki ke haifarwa. A matsayin ma'auni mai mahimmanci na baturi, juriya na ciki ya cancanci bincike don nazarin lalacewar baturi. Juriya na ciki na baturi ya ƙunshi: Ohm juriya na ciki (RΩ) -Juriya daga shafuka, electrolyte, separator da sauran abubuwan da aka gyara.Caji na watsawa na ciki (Rct) - Juriya na ions masu wucewa da kuma electrolyte. Wannan yana wakiltar wahalar amsawar shafuka. A al'ada za mu iya ƙara da conductivity don rage wannan juriya.Polarization Resistance (Rmt) ne na ciki juriya lalacewa ta hanyar yawa uneven na lithium ions tsakanin cathode da anode. Juriya na Polarization zai kasance mafi girma a yanayi kamar caji a cikin ƙananan zafin jiki ko babban caji mai ƙima. Yawanci muna auna ACIR ko DCIR. ACIR shine juriya na ciki da aka auna a cikin 1k Hz AC halin yanzu. Wannan juriya na ciki kuma ana kiranta da juriya na Ohm. Karancin bayanan shine ba zai iya nuna aikin baturi kai tsaye ba. Ana auna DCIR ta hanyar daɗaɗɗen halin yanzu na tilastawa a cikin ɗan gajeren lokaci, wanda ƙarfin lantarki ya ci gaba da canzawa. Idan halin yanzu na yanzu shine I, kuma canjin ƙarfin lantarki a cikin ɗan gajeren lokaci shine ΔＵ, bisa ga dokar Ohm Ｒ＝ΔＵ／ Zamu iya samun DCIR. DCIR ba game da juriya na ciki ne kawai na Ohm ba, har ma yana cajin juriya na canja wuri da juriya na polarization.
Yana da wahala koyaushe akan binciken DCIR na baturin lithium-ion. Yana da mahimmanci saboda juriya na ciki na baturin lithium-ion ƙarami ne, yawanci kawai wasu mΩ. A halin yanzu a matsayin sashi mai aiki, yana da wuya a auna juriya na ciki kai tsaye. Bayan haka, yanayin yanayi yana rinjayar juriya na ciki, kamar yanayin zafi da caji. A ƙasa akwai ƙa'idodi waɗanda aka ambata game da yadda ake gwada DCIR.
Matsayi na duniya:
TS EN 61960-3 Kwayoyin na biyu da batura masu dauke da alkaline ko sauran wadanda ba acid electrolytes - Kwayoyin lithium na biyu da batura don aikace-aikacen šaukuwa - Kashi 3: Kwayoyin sakandare na prismatic da cylindrical lithium da batura da aka yi daga su
IEC 62620: 2014 Kwayoyin na biyu da batura masu dauke da alkaline ko sauran abubuwan da ba acid ba - Kwayoyin lithium na biyu da batura don amfani a aikace-aikacen masana'antu