Mene ne amfanin graphite a fannin fasahar man fetur?

A cikin tsarin makamashin lantarki mai ci gaba da ci gaba,ji na graphiteYa yi fice a matsayin wani abu mai amfani da sinadarin carbon, wanda ke da halaye na musamman na tsari, lantarki, da sinadarai. Duk da cewa ba duk gine-ginen ƙwayoyin mai ba ne ke amfani da graphite felt a ko'ina, rawar da yake takawa—musamman a cikin tsarin ƙwayoyin mai na zamani da kuma tsarin ƙwayoyin mai na haɗin gwiwa—ya ƙara jawo hankalin injiniyoyi da masu tsara tsarin da suka sadaukar da kansu don inganta aikin ƙwayoyin mai a matakan kayan aiki da kuma na sarrafawa.

I. Halayen asali na jikewar Graphite

Daga mahangar kimiyyar kayan aiki, jifa mai siffar graphite wata hanyar sadarwa ce mai girman girma uku wadda ta ƙunshi zare mai kama da carbon, wanda aka samo daga polyacrylonitrile (PAN) ko kuma abubuwan da suka fara bayyana a cikin siffa sannan aka yi masa graphitized a yanayin zafi mai yawa. Wannan tsarin yana ba wa jifa mai siffar graphite damar yin amfani da nau'ikan siffofi daban-daban musamman a cikin yanayin lantarki:

● Babban ƙarfin lantarki: tabbatar da jigilar lantarki

● Babban rami (>90%): yana sauƙaƙa shigar iskar gas ko ruwa

● Ƙarfin juriya ga tsatsa: wanda ya dace da yanayin acidic/oxide (misali, PEMFCs)

● Kyakkyawan juriya ga matsi: yana taimakawa wajen daidaita hulɗa

● Juriyar zafin jiki mai yawa: ya dace da tsarin lantarki mai zafi mai yawa

II. Matsayin Ji na Graphite a cikin Kwayoyin Man Fetur daban-daban

Amfani da jikewar graphite a cikin fasahar ƙwayoyin mai ya bambanta sosai dangane da tsarin tsarin.

1. A cikin Batir ɗin Flow (misali, batirin vanadium redox flow) – Kayan Lantarki na Core

A cikin tsarin lantarki na ruwa-lokaci - musamman batirin kwarara, waɗanda galibi ake tattaunawa tare da fasahar ƙwayoyin mai saboda irin waɗannan ka'idojin lantarki - ana amfani da jikewar graphite a matsayin babban kayan lantarki. Babban yanki na saman sa da tsarin ramuka masu haɗin kai suna ba da wurare masu aiki da yawa don halayen redox yayin da suke haɓaka kwararar lantarki. Ana amfani da hanyoyin gyara saman kamar kunna zafi ko oxidation don haɓaka danshi da aikin catalytic, wanda ke shafar ingancin tsarin da kwanciyar hankali na zagayowar.

2. A cikin ƙwayoyin mai na PEM (ƙwayoyin mai na Proton Exchange Membrane) – Kayan tallafi/Tallafi

Sabanin haka, a cikin tsarin musayar membrane na proton (PEM), fel ɗin graphite ba zaɓi ne na al'ada ba ga layin watsa gas (GDL). Takardar carbon ko zane na carbon sun mamaye saboda daidaiton da aka inganta a cikin watsawa, taurin injina, da kuma iya kerawa. Duk da haka, fel ɗin graphite ya sami aikace-aikace na musamman a wasu tsare-tsare na musamman na PEM, musamman inda ake buƙatar ingantaccen sarrafa ruwa ko rarraba iskar gas. Babban porosity ɗinsa na iya inganta aikin canja wurin taro a ƙarƙashin yanayin zafi mai yawa ko yanayin danshi ke iya kamuwa da shi, amma wannan yana haifar da ciniki a cikin juriyar hulɗa da kwanciyar hankali na matsi, wanda dole ne a magance shi ta hanyar tsara tarin da sarrafa matsi a hankali.

3. A cikin ƙwayoyin mai mai zafi mai zafi (SOFCs, da sauransu) – Ma'ajiyar Kulawa/Tare da Taimako

A cikin tsarin zafin jiki mai yawa (misali, masu amfani da wutar lantarki mai ƙarfi na oxide), yawanci ba a amfani da jikewar graphite a matsayin babban kayan lantarki saboda rinjayen kayan yumbu a cikin lantarki da electrolyte. Duk da haka, yana iya yin ayyuka na taimako, gami da buffering mai sarrafawa, tallafin rufewa, ko ɗaukar faɗaɗa zafi a cikin kayan aiki na taimako ko yankunan da ke kewaye. Duk da cewa waɗannan ayyuka na biyu ne, suna da mahimmanci don tabbatar da dorewa na dogon lokaci da amincin injin a ƙarƙashin yanayin aiki mai tsanani.

III. Takaitaccen Bayani Kan Muhimman Muhimman Ayyuka A Fasahar Tantanin Mai

Daga mahangar injiniyan tsari, darajar graphite ji tana cikin ikonta na haɗa ayyuka da yawa a cikin abu ɗaya. Tsarinsa mai girma uku yana ba da damar ƙirƙirar hanyoyin haɗin lantarki mai faɗi, yana ƙara yankin amsawar aiki yadda ya kamata ba tare da ƙara sawun tsarin ba sosai. A lokaci guda, yana ba da gudummawa ga rarraba ruwa iri ɗaya, rage yawan taro da rage asarar polarization da ke da alaƙa da iyakokin canja wurin taro. Haɗin kai mai kyau na graphite ji yana sauƙaƙa ƙirƙirar hanyar sadarwa mai ci gaba da aiki, ta haka rage juriya ta ciki da inganta ingantaccen tsarin gabaɗaya.

Bugu da ƙari, yana taka muhimmiyar rawa wajen inganta injina da haɗuwa. Ƙarfin matsewa da juriyar ji na graphite yana ba shi damar daidaitawa da juriyar masana'antu da kuma kiyaye daidaiton hulɗar fuska a ƙarƙashin yanayin tara kaya. Wannan halayyar tana da matuƙar amfani a cikin tsarin modular ko manyan sikelin, saboda rarrabawa iri ɗaya yana da mahimmanci don daidaiton aiki.

IV. Me yasa za a zaɓi Makamashin VET?

A fannin ƙwayoyin mai da aikace-aikacen lantarki masu zafi mai yawa, VET Energy, ta amfani da ci gaba da saka hannun jari da ƙwarewar injiniya a cikin kayan da aka yi da carbon, ta gina cikakken tsarin samfuri na ji na graphite da kayan haɗin gwiwa waɗanda suka shafi yanayi daban-daban na aikace-aikacen, suna samar da mafita masu inganci ga nau'ikan ƙwayoyin mai daban-daban. An yi amfani da mafita na kayan VET Energy sosai a cikin fasahohi daban-daban, gami da ƙwayoyin mai na musayar proton da ƙwayoyin mai na oxide mai ƙarfi, kuma an haɓaka su kuma an tabbatar da su a cikin tsarukan da aka faɗaɗa kamar batirin kwarara. Idan kuna bincika yuwuwar aikace-aikacen naji na graphiteda kuma kayan carbon masu alaƙa a cikin tsarin lantarki, ko kuma kuna son ƙara inganta hanyoyin aiki da aiki da ake da su, da fatan za ku iya tuntuɓar mu don tattaunawa da haɗin gwiwa don haɓaka haɓaka fasahar ƙwayoyin mai na zamani.