Ndị ọkà mmụta sayensị emepụtala sel sodium-ion (Na-ion) nwere electrolyte siri ike • Ugbo ala ELECTRIC
Ndị ọkà mmụta sayensị sitere na Mahadum Austin (Texas, USA) emepụtala mkpụrụ ndụ Na-ion na electrolyte siri ike. Ha adịghị njikere maka mmepụta, ma ha na-ele anya na-ekwe nkwa: ha yiri n'akụkụ ụfọdụ nke sel lithium-ion, na-eguzogide ọtụtụ narị usoro ọrụ na-arụ ọrụ ma jiri ihe dị ọnụ ala na ọnụ ala - sodium.
Asphalt, graphene, silicon, sọlfọ, sodium - ihe ndị a na ihe ndị a ga-eme ka ọ dịkwuo mma n'ọdịnihu. Ha nwere otu ihe jikọrọ: ha dị ngwa ngwa (ma e wezụga graphene) na nkwa ịrụ ọrụ yiri nke ahụ, na ikekwe ọbụna ka mma n'ọdịnihu, lithium.
Echiche na-adọrọ mmasị bụ iji sodium dochie lithium. Ma ọcha bụ nke otu ìgwè alkali ọla, ma bụ dokwara reactive, ma sodium bụ nke isii kasị ukwuu mmewere na ụwa jikọrọ ọnụ na anyị nwere ike nweta ya ọnụ ala. N'ime mkpụrụ ndụ Na-ion nke e mepụtara na Texas, sodium na-anọchi lithium dị na anode, na electrolytes na-ere ọkụ na-eji sọlfọ electrolytes siri ike dochie ya. (isi iyi).
Na mbụ, a na-eji seramiiki cathode, ma n'oge a na-arụ ọrụ (nkwenye ụgwọ / nnyefe ụgwọ) ọ gbanwere nha ma daa. Ya mere, a na-eji cathode na-agbanwe agbanwe dochie ya nke ihe ndị na-emepụta ihe. The cell e mere n'ụzọ dị otú a na-arụ ọrụ na-enweghị ọdịda n'ihi na ihe karịrị 400 ụgwọ / mwepu cycles, na cathode natara ike njupụta nke 0,495 kWh / kg (a uru ekwesịghị mgbagwoju anya na ike njupụta nke dum cell ma ọ bụ batrị).
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Mgbe emeziwanye cathode ahụ, ọ ga-ekwe omume iru ọkwa 0,587 kWh / n'arọ, nke dabara na ụkpụrụ ndị enwetara na sel sel lithium-ion. Mgbe okirikiri chajị 500 gachara, batrị ahụ nwere ike ijide pasenti 89 nke ike ya.nke kwekọrọ na paramita nke mkpụrụ ndụ Li-ion [na-adịghị ike].
Selụ Na-ion na-arụ ọrụ na voltaji dị ala karịa sel lithium-ion, yabụ enwere ike iji ha mee ka ngwa eletrọnịkị enwere ike. Otú ọ dị, otu Austin kpebikwara ịkwaga na voltaji dị elu ka e wee nwee ike iji cell mee ihe na ụgbọ ala eletrik. Gịnị kpatara? Otu n'ime ihe ndị bụ isi nke ụgbọ ala bụ ike ya, na ọ dabere na ike nke ugbu a na voltaji na electrodes.
Ọ bara uru ịgbakwunye na John Goodenough, onye mepụtara mkpụrụ ndụ lithium-ion, sitere na Mahadum Austin.
Mmepe foto: Mmeghachi omume nke ntakịrị ntụ ntụ sodium na mmiri (c) ọkachamara ebe nchekwa Ron White - ọzụzụ ebe nchekwa na ọzụzụ ụbụrụ / YouTube. Ọmụmaatụ ndị ọzọ:
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