Nyocha nke ihe kpatara mfu ọkụ nke ngwa batrị Lithium ion dị mma

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A na-eji ụgbọ ala eletrik Tesra nọchitere anya ya iji NCA, NCM811 ma ọ bụ NCM622 ihe dị elu nickel dị ka ihe batrị lithium ion dị mma. Otú ọ dị, ihe electrode a dị elu nke dị elu nwere nsogbu nchekwa, otu nchekwa nchekwa ọkụ ọkụ Canada Dr. Zhou Wei, Dr.

Wang Jian, Wang Jian, a Chemical Imaging Line Station na osote prọfesọ nke Xiamen University of Science and Technology, maka oge mbụ, na-adọ nkesa nke mgbagwoju composite electrode okpomọkụ ruo mgbagwoju mejupụtara electrode okpomọkụ nke akara, na multi-adọ nkewa onu tupu na mgbe okpomọkụ ọnwụ. A na-ahụta mkpa ọ dị site na ọkwa nano, a chọpụtakwara na thermal na-achịkwa nwere ike jikọta ya na nkesa nke ndị nduzi na ndị na-ekekọta ihe. Batrị lithium ion nke NCA, NCM811 ma ọ bụ NCM622 nọchitere anya nwere uru nke ikike dị elu, ọnụ ala dị ala na ihe egwu gburugburu ebe obibi.

Ka ọ dị ugbu a, a na-eji ụgbọ ala eletrik nke Tesla nọchitere anya ya. Otú ọ dị, e nwere nsogbu na ọnụnọ nke nchekwa nke elu nickel layered nti electrodes, karịsịa na elu okpomọkụ ala ihe ire ere, hapụ oxygen, na-eme ka thermal si akara, na-akpata batrị combustion mgbawa. Site n&39;echiche nke isi tiori, na-omimi nghọta nke na-adọ nkewa nke siri ike steeti electrodes n&39;okpuru thermal si na-achịkwa dị mkpa ka fundamentally dozie nkwụsi ike ntụpọ nke a ihe intrinsic.

Site n&39;echiche nke bara uru analysis, omume nke ọmụmụ na-ekewa kewapụrụ n&39;ezie porous mejupụtara electrode, na kwekọrọ na size mmetụta nke nti electrode ihe, mmekọrịta dị n&39;etiti crystal elu ụkpụrụ, na elu passivation film, bụ ndabere nnyocha na n&39;ezie ngwa na-adọ. Ejikọtara ezigbo usoro. Agbanyeghị, echiche a ga-enwerịrị njirimara dị elu pụtara imezu ya.

Dr. Zhou Wei, otu Canadian Light Source Storage Group, na Dr. Wang Jian na Chemical Imaging Line ọdụ na-arụkọ ọrụ nke ọma na osote prọfesọ nke okporo ụzọ odeakwụkwọ nke Xiamen University of Technology ka innovate nnyefe X-ray scanning nke ọcha na orbit selectivity, chemical na electronic owuwu.

A na-eji MicroT (PEEM) mụọ omume nke nkewa oge nke thermostatic acid lithium lithium laminate particles n&39;ime electrode porous. A na-akọ ọrụ a dị ka nchọpụta nyocha n&39;ụdị nke Communications Chemical. Site na in situ nwa akwụkwọ, ndị na-ede akwụkwọ na-eji nkesa nkesa nke mgbagwoju composite electrode okpomọkụ ruo mgbe mgbagwoju composite electrode thermal nke na-achịkwa, na njikọ nke dị iche iche na-adọ nkewa phenomena na mmekọrịta tupu na mgbe thermal pụọ-nke-achịkwa e visualized.

Ihu anya. The okpomọkụ ọnwụ tupu na mgbe nkebi nkewa na otu electrode urughuru larịị egosiputa enweghị atụ unevenness. Nke a na-abụghị uniformization na urughuru size, kristal elu Ọdịdị bụ ihe doro anya, ma nkesa nke conductive mmadụ na binders na-ejikọta ya chiri anya.

Nke a bụ nke mbụ iji nweta nano visualization kewapụrụ site otu ahụ tupu na mgbe okpomọkụ ọnwụ, na-akpakọrịta ya na ya electrode gburugburu ebe obibi. Nke a pụtara n&39;ihu mikwuo nke thermal displacement omume nke laminated ihe dị ịrịba ama, adabara na-akwalite reactive usoro, attenuation usoro nke ọzọ electrode usoro na-amụ thermal si akara. Edemede a na-ebu ụzọ jiri mmetụta elemental nke ihe PEEM metụtara akụkụ elektrọd, gụnyere lithium cobaltate, PVDF, na nkesa nke carbon ojii na-eduzi eletrik.

Tupu ọnwụ okpomọkụ, onye na-eduzi ihe na onye na-ekekọta ihe na-ejikọta ọnụ n&39;otu n&39;otu, ma agglomeration a bụ nke na-adaghị adaba n&39;elu akụkụ lithium cobaltate na ihe ndị ahụ. Ọnwụ ọkụ nke PVDF pụtara ìhè, ebe carbon ojii ka na-ekesa n&39;otu n&39;otu na lithium cobalt acid n&39;ụdị agglomeration. PEEM nwere ike iru 100 nm nm nm, ma nwee ike ịse ya n&39;elu 50 um electrode.

Mkpebi dị elu na ogologo oge dị elu na-enweta ihe oyiyi dị elu nke ọtụtụ akụkụ. Enwere ike iji morphology nke lithium cobaltate particles mụọ omume mbugharị okpomọkụ nke otu ihe ahụ electrode tupu na mgbe okpomọkụ. Nchọpụta kacha ọhụrụ nke ndị na-eduzi ihe, nkesa nke ihe nkesa nwere ike bute batrị lithium-ion dị mma ihe ọkụ na-enweghị njikwa eserese 1.

Nkesa elemental na mmekorita na eserese nke mgbe thermostat (A, B) (C, D) na-ekewa n&39;ime nke ọ bụla The absorption spectrum of the cobalt element of the pixel unit cobalt element na-eji otu oge, gụnyere spectral decomposition fitness of CO2 + (thermal out-controlled release oxygen formation), CO3 + (LCO) ma ọ bụ CO3 + CO3. A na-egosipụta nke ọma enweghị isi nke nkewa nke usoro na ọnụ ọgụgụ C na D.

Ọ bụrụ na enwetara maapụ nkewa nke usoro ahụ yana profaịlụ mmewere nke arụpụta, nkewa nke ngalaba a nwere njikọ dị ukwuu na nkesa nke carbon ojii tupu na mgbe ọ gachara. Igwe ọkụ ọkụ ebelatala oke nkewa nke ngalaba. Ọ dị iche na nkwubi okwu enwetara site na chaja kemịkalụ mgbe chaja kemịkalụ site na chaja kemịkalụ n&39;oge gara aga.

Mmetụta nke ụmụ irighiri ihe elektrọd, nha, na nghazi elu kristal dị obere karịa gburugburu ebe obibi, ọkachasị mmetụta nke onye na-eduzi ihe.