He aha te mea he huruhuru hiko graphite?

He mea whakairo irahiko graphiteHe rauemi waro pūwero, ātete ki te pāmahana teitei, e whakamahia whānuitia ana i roto i ngā tono hikohiko, inā koa i roto i ngā pūnaha rokiroki me te hurihanga pūngao pēnei i ngā pākahiko rere redox, ngā pūtau wahie, me ngā tauhohenga hikohiko. Ka hangaia mā te whakakāhore me te whakakāwhata i ngā matū muka (ko te nuinga he PAN-based, he rayon-based rānei), ka hanga he whatunga muka waro-ahu-toru me te kawe hiko pai me te pumau matū.

1. Hanganga me te Whakatakotoranga

He mea hanga te muka waro pai o te whatu graphite mai i ngā mano tini o ngā muka waro pai kua whiria hei whāriki kore-whatu. I muri i te whakawaro (i runga ake i te 1000 °C) me te whakakaruwhatu (i runga ake i te 2000 °C), ka whiwhi te rauemi i ēnei:

• Te kawe hiko teitei
• Te ātete ki te waikura i roto i ngā pāpāho waikawa, kawakore rānei
• Te pumau o te wera i runga ake i te 3000 °C i roto i ngā taiao kore mahi

He ngohengohe tonu tōna hanganga, engari ka noho koretake ngā matū, ka kaha hoki te hiko.

2. He aha te take e whakamahia ai te huruhuru hipi i roto i ngā hikohiko?

He rerekē tēnei i ngā pereti karāpiti totoka, he nui te horahanga o roto o te muka karāpiti, ā, he pai ake te horapa o te katote, he mea tino pai mō ngā tauhohenga hiko e whai hua ana mai i te pai o te whakawhiti papatipu. Nā tōna hanganga tuwhera-pūwero ka taea e te hikohiko te uru hohonu, ka taea ai ngā tauhohenga redox puta noa i te rōrahi—kaua ko te mata anake.

Ngā painga matua:

• Teitei o te horahanga o te mataHe pai mō ngā tono kiato-auau teitei
• He pai te hononga hiko: Ka pupuri i te rere o te au puta noa i ngā paparanga kua kōpeketia
• Matotoru me te kiato e taea te whakarite: Kua whakaritea mō ngā hoahoa puranga motuhake
• Mama, ngāwari hokiHe ngāwari ki te whakahaere me te hanga
• Te ātete wera: Ka mahi i raro i ngā pāmahana teitei

3. Ngā Whakamahinga Noa

He whānuitia te whakamahinga o te whatu hiko graphite i roto i:

Ngā Pūhiko Rere Redox (VRFB, IRFB, me ētahi atu)

Ko tōna horahanga mata nui e tautoko ana i ngā hononga redox V²⁺/V³⁺ me VO²⁺/VO₂⁺ me te whai hua. He pakari me te kawe hiko teitei e pai ai mō te mahi huringa roa.

Ngā Pūtau Wahie

I roto i ētahi hoahoa pūtau wahie, ka mahi te muka karāpeti hei hiko tohatoha hau pūngoi, hei kaikawe whakakorikori rānei.

Ngā Irahikohiko / Ngā Tauhohenga Irahikohiko

E whakamahia ana ngā irahiko whatu i roto i ngā tukanga hiko-matū maha pērā i te maimoatanga wai para, te hanga hiko, me te hanga hauwai.

Rangahau Taiwhanga

Nā te ngāwari, te iti o te utu, me te ngāwari ki te tukatuka, e whakamahia whānuitia ana te whatu karāpeti i roto i ngā whakamātautau tauira me ngā whakamātautau papa.

4. Ngā Tawhā Kōwhiringa

I te wā e whiriwhiri ana i te whatu karāhe mō te hikohiko, me whai whakaaro ki ētahi āhuatanga:

5. Ngā Whakarerekētanga Noa

Ahakoa he pai te mahi a te muka graphite kāore i te rongoatia, he maha ngā wā ka whakarei ake te whakarerekētanga o te mata i te mahi hikohiko:

• Whakahohenga wera: Whakauruhia ngā rōpū kei roto te hāora hei whakapai ake i te mākū
• Te waikura matū, te maimoatanga plasma rānei: Tāpirihia ngā pae hohe, ā, whakarei ake i ngā tere tauhohenga
• Te utaina o te whakakorikoriKa taea te tāpiri i ngā waikura whakarewa (hei tauira, MnO₂, Pt, Ir) hei whakapai ake i ngā tauhohenga motuhake
• Paninga graphene/nanocarbonWhakapai ake i te kawe hiko me te pono o te miihini

6. Ngā Whakaaro Matua mō te Whakamahinga Whaitake

• Te pēhitanga: Ka rerekē te whanonga i raro i te pēhanga; me taurite te kawe hiko me te ātete rere
• Te parakoreMe whakamahi ngā whatu parakore teitei i roto i ngā pūnaha tairongo hei karo i te poke
• Te whakahaereMe karo i te poke o te hinu, te puehu, te konganuku rānei; me mau karapu tiaki me ngā wāhi kore puehu
• Maimoatanga-muaMe horoi, me whakatōtika rānei i runga i te hototahitanga o ngā irahiko

He mea whakairo irahiko graphiteehara i te mea he rauemi noa iho—he wāhanga hiko matū mahi-teitei. Nā tōna huinga o te kawe hiko, te porosity, te ngāwari, me te ātete matū, he mea pai tēnei mō ngā puranga pākahiko matatau, ngā electrolyzers, me ngā pūnaha hurihanga pūngao tauine-taiwhanga.

Ahakoa kei te hoahoa koe i tētahi pākahiko rere redox o te whakatupuranga hou, kei te whakamātautau rānei i ngā taunekeneke whakakorikori hou i roto i tētahi tauira pūtau wahie, ka tukuna e te huruhuru karāhe he tūāpapa ka taea te whakarerekē, te tauine hoki mō te mahi hikohiko whai hua.