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Whakaitihia te toronga dendritic o te ora pākahiko lithium-ion me te rīpene

著者:Iflowpower – Provedor de central eléctrica portátil

Ko te roopu rangahau pūtaiao o te Whare Wananga o Les kei runga i te riipene, kua honoa ki etahi hangarau taiaho matatau, a kua whakawhanakehia he momo rauemi hiko hou. Ka taea e tenei rauemi te wikitoria i nga raru mo te wa roa o te pākahiko lithium-ion o naianei me te tumanako ka piki ake te mahi o te pākahiko. Ko te pākahiko whakarewa Lithium e tohu ana ki te pākahiko e whakamahia ana hei kauwhata ka whakamahia hei anode (e rua nga hiko) ki te pākahiko lithium whakarewa parakore.

I te mea he tino kaha te kaha o tenei rauemi, ka taea e te lithium whakarewa te tere o te utu o te pākahiko, ka eke ki te 10 nga wa. Engari, kei reira tonu etahi ngoikoretanga i roto i nga pākahiko lithium-ion, he nui ake te raru ki nga "dendrites". I te wa e utu ana, ka hangaia enei dendrites ki runga i te mata o te anode, ka puta he ara iahiko poto, he kore, he ahi ranei, no reira he maha nga rangahau pākahiko ka kohia hei patu.

Ko te roopu rangahau putaiao mai i te Whare Wananga o Les he wehenga hou mo tenei waahanga, tuatahi ko te ripene. Ka tukuna e te roopu te riipene ki te kaikohi o naianei parahi e hanga ana i te anode lithium, ka whakatauhia ki te taiaho hei whakamahana ki te tino mahana o te 2300 Kelvin (3680 ¡ã F, 2026 ¡ã C ranei), na reira ka whai hua. āhuatanga hou.

Ma tenei mahi ka huri te rīpene ki te paninga maiengi, he pai ki te tito mai i te silicon, te hāora, me te iti o te graphene whakamiharo. Mo te whakamatautau tuatahi o te kiriata, ka taea te whakamahi hei paparanga whakamarumaru o te huihuinga kaikohi o naianei, ka taea te tango me te tuku i te lithium whakarewa, kaore e puta he dendrites kino. I roto i tana paninga whakamarumaru o te waikura o te taiaho, kua kitea pea e te roopu Whare Wananga iti he huarahi ki te whakamahi i enei mea pai, ehara i te mea kua piki ake te taumahatanga lithium.

Ko tana tauākī whakamātautau, ko te pākahiko me tana paninga hou e whakaatu ana e toru nga wa te ora o etahi atu pākahiko lithium-ion whakarewa "kore taikaha", me te 70% te kaha i roto i nga huringa utu 60. Ka tātarihia e te roopu he tere, he haumaru hoki tenei hangarau, kaore e uru ki te whakarewa, ka taea te kawe i te pāmahana rūma. No reira, ka tukuna atu ki nga tumanako me te whakapono he mana nui tona.

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