Famakafakana ny anton&39;ny fahaverezan&39;ny hafanana amin&39;ny akora tsara batterie Lithium Ion

Awdur: Iflowpower - Proveedor de centrales eléctricas portátiles

Ny fiara elektrônika asehon&39;i Tesla dia ampiasaina amin&39;ny fampiasana fitaovana miorina amin&39;ny nikela avo NCA, NCM811 na NCM622 ho fitaovana tsara amin&39;ny bateria lithium ion. Na izany aza, manana olana amin&39;ny fiarovana ity fitaovana electrode tsara miendrika nikela avo lenta ity, ny vondrona fitahirizana angovo avy amin&39;ny hazavana kanadiana Dr. Zhou Wei, Dr.

Wang Jian, Wang Jian, ny simika Imaging Line Station sy lefitry ny profesora Xiamen University ny Siansa sy ny Teknolojia, sambany, ny fizarana fizarana ny hafanana electrode mitambatra sarotra hatramin&39;ny hafanana electrode be pitsiny ny fanaraha-maso, ary multi-dingana fisarahana tranga mialoha sy aorian&39;ny hafanana. Ny maha-zava-dehibe dia aseho amin&39;ny alàlan&39;ny nano-level, ary hita fa ny hafanana tsy voafehy dia mety mifandray akaiky amin&39;ny fizarana ny conducteur sy ny binders. Ny bateria lithium ion asehon&39;ny NCA, NCM811 na NCM622 dia manana tombony amin&39;ny fahaiza-manao avo lenta, ny vidiny ambany ary ny loza ara-tontolo iainana.

Amin&39;izao fotoana izao, ny fiara elektrika asehon&39;i Tesla no ampiasaina. Na izany aza, misy olana eo amin&39;ny fisian&39;ny fiarovana ny nikela avo sosona electrodes tsara, indrindra fa amin&39;ny mari-pana ambony ambany lo ny fitaovana, mamoaka oksizenina, mahatonga mafana tsy voafehy, ka niteraka fipoahana batterie. Avy amin&39;ny fomba fijerin&39;ny teoria fototra, ny fahatakarana lalina momba ny fisarahan&39;ny dingana amin&39;ny electrodes fanjakana mafy orina eo ambanin&39;ny fifehezana mafana dia zava-dehibe amin&39;ny famahana ny lesoka amin&39;ny fahamarinan&39;ity fitaovana ity.

Avy amin&39;ny fomba fijery azo ampiharina fanadihadiana, ny fitondran-tena ny fianarana dingana dia misaraka amin&39;ny tena porous mitambatra electrode, ary mifanaraka amin&39;ny haben&39;ny vokatry ny tsara electrode akora, ny fifandraisana misy eo amin&39;ny kristaly ambonin&39;ny lalàna, sy ny ambonin&39;ny passivation sarimihetsika, no fototry ny fikarohana sy ny tena fampiharana dingana. Fomba idealy mitambatra. Na izany aza, io hevitra io dia tsy maintsy manana fomba amam-panao mandroso mba ho tanteraka.

Dr. Zhou Wei, ny Canadian Light Source Storage Group, ary ny Dr. Wang Jian ao amin&39;ny tobim-piantsonan&39;ny Chemical Imaging Line dia miara-miasa akaiky amin&39;ny profesora lefitry ny sekreteran&39;ny lalana ao amin&39;ny Oniversiten&39;ny Teknolojia Xiamen mba hanavao ny fandefasana X-ray scanning ny singa sy ny fifantenana ny orbit, ny rafitra simika sy elektronika.

MicroT (PEEM) dia ampiasaina handinihana ny fitondran-tenan&39;ny fisarahan&39;ny dingana amin&39;ny asidra thermostatic lithium lithium laminate ao amin&39;ny electrode porous. Ity asa ity dia notaterina ho toy ny fikarohana misongadina amin&39;ny endriky ny ChemicalCommunications. Amin&39;ny alàlan&39;ny mpianatra in-situ, ny mpanoratra dia nampiasa ny fizarana fizarana ny hafanana electrode composite sarotra mandra-pahatongan&39;ny electrode composite sarotra tsy voafehy, ary ny fifandraisan&39;ny trangan-javatra fisarahana amin&39;ny dingana isan-karazany amin&39;ny fifandraisana alohan&39;ny sy aorian&39;ny tsy fanaraha-maso mafana dia hita maso.

Visualization. Ny fahaverezan&39;ny hafanana alohan&39;ny sy aorian&39;ny fisarahana amin&39;ny sehatra electrode tokana dia mampiseho tsy fitoviana tsy ampoizina. Ity non-uniformization sy ny haben&39;ny poti, kristaly ambonin&39;ny rafitra dia tsy miharihary, fa ny fizarana conductive mpandraharaha sy ny binders dia mifandray akaiky.

Ity no fotoana voalohany nahitana ny nano visualization misaraka amin&39;ny poti mitovy alohan&39;ny sy aorian&39;ny fahaverezan&39;ny hafanana, ary mampifandray izany amin&39;ny tontolo electrode. Izany dia midika ho lalindalina kokoa ny fitondran-tena mafana fifindran&39;ny fitaovana laminated dia manan-danja, mety amin&39;ny fampiroboroboana ny reactive rafitra, attenuation rafitra electrode rafitra hafa mba hianatra ny mafana tsy voafehy. Ny lahatsoratra voalohany dia mampiasa ny fahatsapan&39;ny singa ao amin&39;ny PEEM momba ny singa electrode, ao anatin&39;izany ny lithium cobaltate, PVDF, ary ny fizarana ny mainty karbônina conductive elektrika.

Alohan&39;ny fatiantoka hafanana, ny conductive agent sy ny binder dia mifangaro mitovy, fa ity agglomeration ity dia tsy mitovy amin&39;ny endrik&39;ireo poti-potaka lithium cobaltate sy ny poti. Ny fahaverezan&39;ny hafanana amin&39;ny PVDF dia miharihary, raha ny mainty karbôna conductive dia mbola mizara mitovy amin&39;ny asidra kobalta lithium amin&39;ny endrika agglomeration. Ny PEEM dia mety hahatratra 100 nm resolution, ary azo alaina sary amin&39;ny 50 um electrode surface.

Ny fanapahan-kevitra spatial avo sy ny elanelam-pamokarana avo lenta dia mahatratra ny fakana sary avo lenta amin&39;ny singa marobe. Ny morphologie ny singa lithium cobaltate dia azo ampiasaina handinihana ny fihetsiky ny fifindran&39;ny hafanana amin&39;ny poti electrode mitovy alohan&39;ny sy aorian&39;ny thermostat. Ny fikarohana farany momba ny conductive agents, ny fizarana ny binder dia mety hiteraka batterie lithium-ion positive material thermal out-of-control diagram 1.

Ny fizarana singa sy ny fifandraisana ary ny kisarisary mifandraika aorian&39;ny thermostat (A, B) (C, D) dia misaraka amin&39;ny tsirairay. Ny tsy fitovian&39;ny fisarahana amin&39;ny dingana dia hita taratra tsara amin&39;ny sary C sy D.

Raha azo miaraka amin&39;ny mombamomba ny singa aterak&39;izany ny sarintany fisarahana, dia misy ifandraisany lehibe amin&39;ny fizarana ny mainty karbônina conductive alohan&39;ny sy aorian&39;ny fahaverezan&39;ny hafanana. Ny thermostat dia nampihena be ny haben&39;ny fisarahan&39;ny dingana. Tsy mitovy amin&39;ny fehin-kevitra azo tamin&39;ny fiampangana simika taorian&39;ny fiampangana simika tamin&39;ny fampangatsiahana simika taloha.

Ny vokatry ny electrode poti, ny habeny, ary ny kristaly orientation ambonin&39;ny dia ambany lavitra noho ny particulate tontolo iainana, indrindra fa ny vokatry ny conductive mpandraharaha.