Uvavanyo lweDatha yeCell Thermal Runaway kunyeUhlalutyo lweMveliso yeGesi,
Uhlalutyo lweMveliso yeGesi,

▍Yintoni iSatifikethi se-CB?

I-IECEE CB yinkqubo yokuqala yokwenyani yamazwe ngamazwe yokwamkelwa ngokufanayo kweengxelo zovavanyo lokhuseleko lwezixhobo zombane. I-NCB (i-National Certification Body) ifikelela kwisivumelwano samazwe amaninzi, esenza ukuba abavelisi bafumane isatifikethi sesizwe kwamanye amazwe angamalungu phantsi kwe-CB scheme ngesiseko sokudlulisela esinye sezatifikethi ze-NCB.

Isatifikethi se-CB luxwebhu lwesikimu se-CB esisemthethweni esikhutshwe yi-NCB egunyazisiweyo, ekwazisa enye i-NCB ukuba iisampuli zemveliso ezivavanyiweyo ziyahambelana neemfuno ezisemgangathweni.

Njengohlobo lwengxelo esemgangathweni, ingxelo ye-CB idwelisa iimfuno ezifanelekileyo ukusuka kwinqaku le-IEC elisemgangathweni ngento. Ingxelo ye-CB ayinikezi kuphela iziphumo zazo zonke iimvavanyo ezifunekayo, ukulinganisa, ukuqinisekiswa, ukuhlolwa kunye nokuhlola ngokucacileyo kunye nokungacacisi, kodwa kubandakanywa neefoto, umzobo wesiphaluka, imifanekiso kunye nenkcazo yemveliso. Ngokomgaqo weskim se-CB, ingxelo yeCB ayizukusebenza de iveze nesatifikethi seCB kunye.

▍Kutheni sifuna iSiqinisekiso se-CB?

1. Ngqolyukuqondazed or imvumeedngeilunguamazwe

Ngesatifikethi se-CB kunye nengxelo yovavanyo lwe-CB, iimveliso zakho zinokuthunyelwa kumazwe athile ngokuthe ngqo.

1. Guqulela kwamanye amazwe izatifikethi

Isatifikethi se-CB sinokuguqulwa ngokuthe ngqo kwisatifikethi samazwe angamalungu ayo, ngokubonelela ngesatifikethi se-CB, ingxelo yovavanyo kunye nengxelo yokuvavanya umahluko (xa kufanelekile) ngaphandle kokuphinda uvavanyo, olunokunciphisa ixesha eliphambili lokuqinisekiswa.

1. Qinisekisa uKhuseleko lweMveliso

Uvavanyo lwesiqinisekiso se-CB luqwalasela ukusetyenziswa okufanelekileyo kwemveliso kunye nokhuseleko olubonakalayo xa lusetyenziswa kakubi. Imveliso eqinisekisiweyo ingqina ukuba iyanelisa iimfuno zokhuseleko.

▍Kutheni i-MCM?

● Isiqinisekiso:I-MCM yeyokuqala egunyazisiweyo ye-CBTL ye-IEC 62133 isiqinisekiso esisemgangathweni yiTUV RH kwilizwe laseTshayina.

● Isatifikethi kunye namandla okuvavanya:I-MCM iphakathi kwepatch yokuqala yovavanyo kunye nesiqinisekiso somntu wesithathu kumgangatho we-IEC62133, kwaye igqibe ngaphezu kwe-7000 yokuvavanya ibhetri ye-IEC62133 kunye neengxelo ze-CB kubathengi behlabathi.

● Inkxaso yobugcisa:I-MCM ineenjineli ezingaphezu kwe-15 zobuchwephesha ezikhethekileyo kuvavanyo ngokomgangatho we-IEC 62133. I-MCM ibonelela abathengi ngolwazi olubanzi, oluchanekileyo, oluvaliweyo lwenkxaso yobugcisa kunye neenkonzo zolwazi oluphambili.

Ukhuseleko lwenkqubo yokugcina amandla yinkxalabo eqhelekileyo. Njengenye yezinto ezibalulekileyo zenkqubo yokugcina amandla, ukhuseleko lwebhetri ye-lithium-ion lubaluleke kakhulu. Njengoko uvavanyo lokubaleka kwe-thermal lunokuvavanya ngokuthe ngqo umngcipheko womlilo owenzeka kwinkqubo yokugcina amandla, amazwe amaninzi aphuhlise iindlela zovavanyo ezihambelanayo kwimigangatho yazo yokuvavanya umngcipheko wokubaleka kwe-thermal. Ngokomzekelo, i-IEC 62619 ekhutshwe yi-International Electrotechnical Commission (IEC) ichaza indlela yokusabalalisa ukuvavanya impembelelo ye-thermal runaway yeseli; Umgangatho wesizwe saseTshayina i-GB/T 36276 ifuna ukuvavanywa kobushushu bokufudumala kweseli kunye novavanyo lokubaleka kwe-thermal kwimodyuli yebhetri; I-US Underwriters Laboratories (UL) ipapasha imigangatho emibini, i-UL 1973 kunye ne-UL 9540A, zombini ezo zivavanya iziphumo zokubaleka kwe-thermal. I-UL 9540A yenzelwe ngokukodwa ukuvavanya kumanqanaba amane: iseli, imodyuli, ikhabhinethi, kunye nokusasazwa kobushushu kwinqanaba lofakelo. Iziphumo zovavanyo lokubaleka kwe-thermal azikwazi nje ukuvavanya ukhuseleko olupheleleyo lwebhetri, kodwa zikwavumela ukuba siqonde ngokukhawuleza ukubaleka kwe-thermal yeeseli, kunye nokubonelela ngeeparitha ezifanayo zoyilo lokhuseleko lweeseli ezinekhemistri efanayo. Eli qela lilandelayo lokuvavanya idatha ye-thermal runaway kukuba uqonde iimpawu ze-thermal runaway kwinqanaba ngalinye kunye nezinto ezisesiseleni.Inqanaba loku-1: Iqondo lokushisa likhuphuka ngokukhawuleza kunye nomthombo wokufudumala wangaphandle. Ngeli xesha, izinga lokuvelisa ukushisa kweseli yi-0 ℃ / min (0 ~ T1), iseli ngokwayo ayishushu, kwaye akukho ukuphendula kweekhemikhali ngaphakathi.Inqanaba lesi-2 yi-SEI yokubola. Ngokunyuka kwamaqondo obushushu, ifilimu ye-SEI iqala ukunyibilika xa ifikelela malunga ne-90℃ (T1). Ngeli xesha, iseli iya kuba ne-self-heat release, kwaye inokubonwa kuMfanekiso 1 (B) ukuba izinga lokunyuka kweqondo lokushisa liyaguquguquka.Inqanaba lesi-3 linqanaba lokubola kwe-electrolyte (T1~ T2). Xa ubushushu bufikelela kwi-110℃, i-electrolyte kunye ne-electrode engalunganga, kunye ne-electrolyte ngokwayo iya kwenzeka uthotho lokusabela kokubola, ukuvelisa isixa esikhulu segesi. Igesi eqhubekayo yenza uxinzelelo ngaphakathi kwiseli lunyuke ngokukhawuleza, lufikelele kwixabiso lokunciphisa uxinzelelo, kwaye i-gas exhausting mechanism ivula (T2). Ngeli xesha, igesi eninzi, i-electrolytes kunye nezinye izinto zikhupha, zithatha indawo yobushushu, kwaye izinga lobushushu elikhulayo liba libi.