Nnwale Data nke Cell Thermal Runnaway naNyocha nke mmepụta gas,
Nyocha nke mmepụta gas,

Kedu ihe bụ asambodo CB?

IECEE CB bụ ezigbo usoro mba ụwa nke izizi maka nnabata ọnụ maka akụkọ nchekwa nchekwa akụrụngwa eletrik. NCB (National Asambodo Body) ruru a multilateral nkwekọrịta, nke na-enyere ndị na-emepụta aka inweta asambodo mba site na mba ndị ọzọ so n'okpuru atụmatụ CB ndabere na-ebufe otu n'ime NCB asambodo.

Asambodo CB bụ akwụkwọ atụmatụ CB nke NCB nyere ikike, nke bụ ịgwa NCB ndị ọzọ na ihe nlele ngwaahịa a nwalere kwekọrọ n'ụkpụrụ ọkọlọtọ chọrọ.

Dịka ụdị akụkọ ahaziri ahazi, akụkọ CB depụtara ihe ndị dị mkpa sitere na ihe ọkọlọtọ IEC site na ihe. Akụkọ CB na-enye ọ bụghị naanị na-enye nsonaazụ nyocha niile achọrọ, nha, nkwenye, nyocha na ntule na nchapụta na enweghị mgbagha, kamakwa gụnyere foto, eserese sekit, eserese na nkọwa ngwaahịa. Dị ka usoro nke atụmatụ CB si dị, akụkọ CB agaghị arụ ọrụ ruo mgbe ọ na-ewepụta akwụkwọ CB ọnụ.

▍ Gịnị kpatara anyị ji chọọ asambodo CB?

1. Directlymarazed or kwadoroedsiteonye otumba

Site na asambodo CB na mkpesa ule CB, enwere ike ibupu ngwaahịa gị na mba ụfọdụ ozugbo.

1. Tugharia na obodo ndi ozo asambodo

Enwere ike ịtụgharị akwụkwọ CB ozugbo gaa na asambodo nke mba ndị otu ya, site na ịnye asambodo CB, akụkọ nnwale na akụkọ nnwale dị iche (mgbe ọdabara) na-emeghachighị ule ahụ, nke nwere ike belata oge izizi nke asambodo.

1. Gbaa mbọ hụ na nchekwa ngwaahịa

Nnwale asambodo CB na-atụle iji ngwaahịa ahụ ezi uche dị na ya yana nchekwa a na-ahụ anya mgbe ejiri ya mee ihe n'ụzọ na-ezighị ezi. Ngwaahịa a kwadoro na-egosi afọ ojuju nke ihe nchekwa chọrọ.

▍ Gịnị kpatara MCM?

● ntozu:MCM bụ ikike izizi CBTL nke IEC 62133 ọkọlọtọ site na TUV RH na China China.

● Asambodo na ike nnwale:MCM so na patch mbụ nke nnwale na asambodo nke atọ maka ọkọlọtọ IEC62133, ma mechaa karịa batrị 7000 IEC62133 na akụkọ CB maka ndị ahịa ụwa niile.

● Nkwado teknụzụ:MCM nwere ihe karịrị ndị injinia teknụzụ 15 ọkachamara na nnwale dịka ọkọlọtọ IEC 62133. MCM na-enye ndị ahịa ụdị nkwado teknụzụ zuru oke, nke ziri ezi, mechiri emechi yana ọrụ ozi na-eduga.

Nchekwa nke usoro nchekwa nchekwa ike bụ nchegbu nkịtị. Dịka otu akụkụ dị oke mkpa nke sistemu nchekwa ike, nchekwa batrị lithium-ion dị mkpa karịsịa. Dị ka thermal runaway test nwere ike nyochaa ozugbo ihe ize ndụ nke ọkụ na-eme na sistemụ nchekwa ike, ọtụtụ mba emepụtala ụzọ nnwale kwekọrọ na ụkpụrụ ha iji chọpụta ihe ize ndụ nke ịgba ọsọ ọkụ. Dịka ọmụmaatụ, IEC 62619 nke International Electrotechnical Commission (IEC) nyere na-akọwapụta usoro mgbasa ozi iji nyochaa mmetụta nke okpomọkụ na-agba ọsọ nke cell; Ọkọlọtọ mba China GB/T 36276 chọrọ nyocha ịgba ọsọ nke thermal nke cell na thermal runaway module nke batrị; US Underwriters Laboratories (UL) na-ebipụta ụkpụrụ abụọ, UL 1973 na UL 9540A, ha abụọ na-enyocha mmetụta ịgba ọsọ ọkụ. Emebere UL 9540A ka ọ nyochaa site na ọkwa anọ: cell, modul, kabinet, na mgbasa ọkụ na ọkwa nrụnye. Nsonaazụ nke thermal runaway test nwere ike ọ bụghị naanị na-enyocha n'ozuzu nchekwa nke batrị, ma na-ekwe ka anyị ngwa ngwa na-aghọta thermal runaway nke mkpụrụ ndụ, na-enye ndị yiri paramita maka nchekwa imewe nke sel ndị yiri kemistrị. Ndị na-esonụ data nke ule data maka thermal runaway bụ maka gị ịghọta àgwà nke thermal runaway na nke ọ bụla ogbo na ihe ndị dị na cell. Nkebi 1: Okpomọkụ na-ebili nwayọọ nwayọọ na mpụga okpomọkụ isi iyi. N'oge a, ọnụ ọgụgụ mmepụta okpomọkụ nke cell bụ 0 ℃ / min (0 ~ T1), cell n'onwe ya adịghị ekpo ọkụ, ọ dịghịkwa mmeghachi omume kemịkalụ n'ime.Stage 2 bụ SEI decomposition. Site na mmụba nke okpomọkụ, ihe nkiri SEI na-amalite ịgbari mgbe ọ ruru ihe dịka 90 ℃ (T1). N'oge a, cell ga-enwe ntakịrị ikpo ọkụ nke onwe ya, a pụkwara ịhụ ya site na foto 1 (B) na ọnụ ọgụgụ ịrị elu okpomọkụ na-agbanwe agbanwe. Nkeji 3 bụ ọkwa nke electrolyte decomposition (T1 ~ T2). Mgbe okpomọkụ ruru 110 ℃, electrolyte na electrode na-adịghị mma, yana electrolyte n'onwe ya ga-eme usoro mmeghachi omume decomposition, na-emepụta nnukwu gas. Igwe gas na-aga n'ihu na-eme ka nrụgide dị n'ime cell na-abawanye nke ọma, na-erute uru enyemaka nrụgide, na gas na-agwụ ike na-emepe (T2). N'oge a, ọtụtụ gas, electrolytes na ihe ndị ọzọ na-ahapụ, na-ewepụ akụkụ nke okpomọkụ, na okpomọkụ na-abawanye ụba na-aghọ ihe ọjọọ.