Kafukufuku paDirect Currentkukaniza,
Direct Current,

▍ Vietnam MIC Certification

Circular 42/2016/TT-BTTTT inanena kuti mabatire omwe amaikidwa m'mafoni a m'manja, mapiritsi ndi zolembera saloledwa kutumizidwa ku Vietnam pokhapokha ngati ali pansi pa certifctaion ya DoC kuyambira Oct.1,2016. DoC idzafunikanso kupereka mukamagwiritsa ntchito Chivomerezo cha Mtundu pazinthu zomaliza (mafoni a m'manja, mapiritsi ndi zolemba).

MIC inatulutsa Circular 04/2018/TT-BTTTT yatsopano mu May,2018 yomwe imati palibenso lipoti la IEC 62133:2012 loperekedwa ndi labotale yovomerezeka ya kutsidya kwa nyanja lomwe likuvomerezedwa mu July 1, 2018. Mayeso am'deralo ndi ofunikira pamene mukufunsira satifiketi ya ADoC.

▍ Mulingo Woyesera

QCVN101: 2016/BTTTT(nenani ku IEC 62133:2012)

▍PQIR

Boma la Vietnam linapereka lamulo latsopano No. 74/2018 / ND-CP pa Meyi 15, 2018 lonena kuti mitundu iwiri ya zinthu zomwe zimatumizidwa ku Vietnam zimayenera kutumizidwa ku PQIR (Product Quality Inspection Registration) potumizidwa ku Vietnam.

Kutengera lamuloli, Unduna wa Zachidziwitso ndi Kulumikizana (MIC) waku Vietnam udapereka chikalata chovomerezeka cha 2305/BTTTT-CVT pa Julayi 1, 2018, chonena kuti zinthu zomwe zili pansi pa ulamuliro wake (kuphatikiza mabatire) ziyenera kutumizidwa ku PQIR zikamatumizidwa kunja. ku Vietnam. SDoC idzaperekedwa kuti amalize ndondomeko yololeza kasitomu. Tsiku lovomerezeka la lamuloli ndi August 10, 2018. PQIR ikugwiritsidwa ntchito potumiza ku Vietnam kamodzi kokha, ndiko kuti, nthawi iliyonse woitanitsa katundu wochokera kunja, adzapempha PQIR (batch inspection) + SDoC.

Komabe, kwa ogulitsa kunja omwe akufulumira kuitanitsa katundu popanda SDOC, VNTA idzatsimikizira PQIR kwakanthawi ndikuwongolera chilolezo cha kasitomu. Koma obwera kunja akuyenera kutumiza SDoC ku VNTA kuti amalize ntchito yonse yololeza katundu mkati mwa masiku 15 ogwira ntchito pambuyo pa chilolezo cha kasitomu. (VNTA siperekanso ADOC yapitayi yomwe imagwira ntchito kwa Vietnam Local Manufacturers okha)

▍Chifukwa chiyani MCM?

● Wogawana Zambiri Zaposachedwa

● Co-founder of Quacert battery test laboratory

MCM motero imakhala wothandizira yekha labu iyi ku Mainland China, Hong Kong, Macau ndi Taiwan.

● Utumiki wa One-stop Agency Service

MCM, bungwe loyenera kuyimitsa kamodzi, limapereka kuyesa, ziphaso ndi ntchito za ma agent kwa makasitomala.

Pa kulipiritsa ndi kutulutsidwa kwa mabatire, mphamvuyo idzakhudzidwa ndi kuwonjezereka kwa mphamvu chifukwa cha kukana kwa mkati. Monga gawo lofunikira la batri, kukana kwamkati ndikofunikira kufufuza pakuwunika kuwonongeka kwa batri. Kukaniza mkati mwa batri kumakhala ndi: Ohm internal resistance (RΩ) -Kukaniza kuchokera ku ma tabo, electrolyte, separator ndi zigawo zina.Malipiro opatsirana opatsirana mkati (Rct) - Kukana kwa ma ion kudutsa ma tabo ndi electrolyte. Izi zikuyimira zovuta zamachitidwe a ma tabo. Kawirikawiri tikhoza kuonjezera ma conductivity kuti tichepetse kukana uku.Polarization Resistance (Rmt) ndi kukana kwamkati chifukwa cha kusagwirizana kwa lithiamu ions pakati pa cathode ndi anode. Polarization Resistance idzakhala yapamwamba kwambiri ngati kulipiritsa kutentha kochepa kapena mtengo wapamwamba kwambiri. Nthawi zambiri timayesa ACIR kapena DCIR. ACIR ndiye kukana kwamkati komwe kuyezedwa mu 1k Hz AC pano. Kukana kwamkati kumeneku kumadziwikanso kuti Ohm resistance. Kuperewera kwa deta ndikuti sikungathe kuwonetsa mwachindunji ntchito ya batri. DCIR imayesedwa ndi kukakamizidwa kosalekeza mu nthawi yochepa, momwe magetsi amasinthira mosalekeza. Ngati nthawi yomweyo ndi ine, ndipo kusintha kwa magetsi mu nthawi yochepayi ndi ΔＵ, malinga ndi lamulo la OhmＲ＝ΔＵ／Ｉ Titha kupeza DCIR. DCIR sikuti imangokhala kukana kwa Ohm mkati, komanso kukana kusamutsa komanso kukana polarization.
Nthawi zonse zimakhala zovuta pa kafukufuku wa DCIR wa batri ya lithiamu-ion. Makamaka chifukwa kukana kwamkati kwa batri ya lithiamu-ion ndikochepa kwambiri, nthawi zambiri kungokhala mΩ. Pakalipano monga gawo logwira ntchito, ndizovuta kuyeza kukana kwamkati mwachindunji. Kupatula apo, kukana kwamkati kumatengera momwe chilengedwe chimakhalira, monga kutentha ndi kuchuluka kwa ndalama. Pansipa pali miyezo yomwe yanena za momwe mungayesere DCIR.
Muyezo wapadziko lonse lapansi:
TS EN 61960-3 Maselo achiwiri ndi mabatire okhala ndi alkaline kapena ma electrolyte ena omwe si a asidi - Ma cell a lithiamu achiwiri ndi mabatire ogwiritsira ntchito - Gawo 3: Maselo achiwiri a prismatic ndi cylindrical lithiamu ndi mabatire opangidwa kuchokera kwa iwo.
IEC 62620: 2014 Maselo achiwiri ndi mabatire okhala ndi alkaline kapena ma electrolyte ena omwe alibe asidi - Ma cell a lithiamu achiwiri ndi mabatire omwe amagwiritsidwa ntchito m'mafakitale