Pereti bipolar graphiteHe wāhanga matua e whakamahia ana i roto i ngā taputapu hikohiko pēnei i ngā pūtau wahie me ngā electrolyzers, he mea hanga i ngā rauemi graphite tino parakore. He mahi nui tāna i roto i ngā tauhohenga hikohiko, e whakamahia ana hei kawe i te iahiko, hei tohatoha i ngā hau tauhohenga (pēnei i te hauwai me te hāora), me te wehewehe i ngā wāhi tauhohenga. Nā te mea e pā ana ōna taha e rua ki te anode me te cathode o ngā pūtau takitahi e tata ana, ka hanga he hanganga "bipolar" (kotahi taha te mara rere anode, ko tetahi taha ko te mara rere cathode), ka kiia ko te pereti bipolar.
Te hanganga o te pereti rua-karaihe
Ko ngā pereti bipolar graphite te nuinga o te wā he mea tito mai i ēnei wāhanga e whai ake nei:
1. Mara RereKua hoahoatia te mata o te pereti bipolar ki tētahi hanganga mara rere matatini hei tohatoha ōrite i te hau tauhohenga (pērā i te hauwai, te hāora, te hau rānei) me te tuku i te wai i hangaia.
2. Paparanga aratakiHe pai te kawe iahiko o te rauemi karāpiti, ā, ka taea e ia te kawe iahiko me te whai hua.
3. Rohe hiriKo ngā taha o ngā pereti bipolar he mea hanga ki ngā hanganga hiri hei ārai i te turuturu hau me te urunga o te wai.
4. Ngā awa whakamatao (whiringa kore)I ētahi tono mahi-teitei, ka taea te hoahoa i ngā hongere whakamatao ki roto i ngā pereti bipolar hei whakahaere i te pāmahana whakahaere o ngā taputapu.
Ngā mahi a ngā pereti rua-karaihe
1. Mahi kawe:
Hei irahiko o ngā taputapu hiko-matū, ko te pereti bipolar te kawenga mō te kohikohi me te kawe i te iahiko hei whakarite i te putanga whai hua o te pūngao hiko.
2. Te tohatoha hau:
Mā te hoahoa hongere rere, ka tohatoha ōritetia te hau tauhohenga e te pereti bipolar ki te paparanga whakakorikori, ka whakatairanga i te tauhohenga hikohiko.
3. Te wehewehe i ngā rohe tauhohenga:
I roto i te pūtau wahie, i te irahiko rānei, ka wehea ngā wāhi anode me te cathode e ngā pereti bipolar, kia kore ai e ranea ngā hau.
4. Te whakamararatanga me te whakahekenga wera:
Ka āwhina ngā pereti rua-ira ki te whakahaere i te pāmahana whakahaere o ngā taputapu me te tuku wai, i ētahi atu hua taha rānei i puta mai i te tauhohenga.
5. Tautoko ā-mīhini:
Ka tautokohia e ngā pereti bipolar te hanganga mō te irahiko membrane, kia mau ai te pumau me te roa o te taputapu.
He aha i whiriwhiri ai i te karāpeti hei rauemi pereti rua-ira?
Ngā āhuatanga rauemi o ngā pereti bipolar graphite
●Te kawe hiko teitei:
Ko te ātete papatipu o te karāpeti he iti iho i te 10-15μΩ.cm (he pai ake i te 100-200 μΩ·cm opereti takirua whakarewa).
●Ātete ki te waikura:
Kāore rawa he waikura i roto i te taiao waikawa o ngā pūtau wahie (pH 2-3), ā, ka taea e te roanga o te ora mahi te neke atu i te 20,000 hāora.
●Mama:
Ko te mātotorutanga he tata ki te 1.8 karamu/cm3 (7-8 karamu/cm3 mō te pereti whakarewa bipolar), he mea whai hua mō te whakaiti i te taumaha i roto i ngā mahi waka.
●Āhuatanga ārai hau:
Mā te hanganga matotoru o te karāpeti ka ārai pai i te urunga o te hauwai, ā, he tino haumaru hoki.
●Te tukatuka ngāwari:
He māmā te tukatuka i te rauemi karāpiti, ā, ka taea te whakarite i ngā hoahoa me ngā rahi o ngā awa rere matatini kia rite ki ngā hiahia.
Me pēhea te hanga i ngā pereti bipolar graphite?
Te tukanga whakaputa opereti rua-karaihekei roto i ēnei e whai ake nei:
●Te whakarite rauemi mata:
Whakamahia he paura karāpeti māori, he paura karāpeti horihori rānei, he tino parakore (>99.9%).
Tāpirihia te kapia (pērā i te kapia phenolic) hei here hei whakarei ake i te kaha ā-ringa.
●Te Whakarewatanga Kōpeketanga:
Ka werohia te rauemi whakaranu ki roto i tētahi pokepokea ai, ka pēhia i raro i te pāmahana teitei (200-300℃) me te pēhanga teitei (>100 MPa).
●Te maimoatanga whakakāwhatu:
Mā te whakamahana ki te 2500-3000℃ i roto i te hau kore mahi ka memeha ngā huānga kore-waro ka hanga he hanganga karāhe matotoru.
●Te tukatuka a te kaikawe:
Whakamahia ngā mīhini CNC, ngā rēseri rānei hei whakairo i ngā hongere porotaka, whakarara, waenga-mati rānei (hohonutanga 0.5-1 mm).
●Te maimoatanga mata:
Mā te paninga ki te kapia, ki te paninga whakarewa rānei (pērā i te koura, te titanium) ka whakaiti i te ātete pa, ka whakapai ake hoki i te ātete kakahu.
He aha ngā whakamahinga o ngā pereti bipolar graphite?
1. Pūtau Wahie:
- Pūtau wahie kiriuhi whakawhiti pūmua (PEMFC)
- Pūtau Wahie Waikura Totoka (SOFC)
- Pūtau Wahie Methanol Tika (DMFC)
2. Pūhikohikohiko:
- Te whakaputanga hauwai mā te hikohiko wai
- Ahumahi chlor-alkali
3. Pūnaha rokiroki pūngao:
- Pūhiko rere
4. Ahumahi Matū:
- Tauhohenga Hikohiko
5. Rangahau taiwhanga:
- Te whakawhanaketanga tauira me te whakamātautau i ngā pūtau wahie me ngā electrolyzers
Whakarāpopototia
Ngā pereti bipolar graphitehe wāhanga matua o ngā taputapu hikohiko pēnei i ngā pūtau wahie me ngā kaiwhakamāori hiko, ā, he maha ngā mahi a ēnei pēnei i te kawe hiko, te tohatoha hau, me te wehewehe i ngā wāhi tauhohenga. I te whanaketanga o te hangarau pūngao ma, kei te piki haere te whakamahinga o ngā pereti bipolar graphite i roto i ngā waka pūngao hou, ngā pūnaha rokiroki pūngao, te hanga hauwai matū me ētahi atu mara.
Wā tuku: Maehe-31-2025