Farantin bipolar graphitewani mahimmin sashi ne da ake amfani da shi a cikin kayan aikin lantarki kamar ƙwayoyin mai da na'urorin lantarki, galibi ana yin su da kayan graphite masu tsafta. Yana taka muhimmiyar rawa a cikin halayen halayen lantarki, galibi ana amfani da su don gudanar da halin yanzu, rarraba iskar gas (kamar hydrogen da oxygen), da wuraren da ake ɗauka. Saboda ɓangarorinsa guda biyu suna hulɗa da anode da cathode na sel guda ɗaya masu kusa, suna samar da tsarin "bipolar" (gefe ɗaya shine filin kwararar anode kuma ɗayan gefen shine filin kwarara na cathode), ana kiransa farantin bipolar.
Tsarin farantin bipolar graphite
Faranti biyu na graphite yawanci sun ƙunshi sassa masu zuwa:
1. Filin Ruwa: An ƙera saman farantin bipolar tare da tsarin fili mai rikitarwa don rarraba iskar gas daidai gwargwado (kamar hydrogen, oxygen ko iska) da fitar da ruwan da aka samar.
2. Yaduwar aiki: Graphite abu da kanta yana da kyau conductivity kuma zai iya gudanar da halin yanzu da nagarta sosai.
3. Wurin rufewa: An tsara gefuna na faranti na bipolar yawanci tare da tsarin rufewa don hana zubar gas da shigar ruwa.
4. Tashoshi masu sanyaya (na zaɓi): A wasu aikace-aikace masu girma, ana iya tsara tashoshi masu sanyaya a cikin faranti biyu don daidaita yanayin aiki na kayan aiki.
Ayyuka na graphite bipolar faranti
1. Ayyukan gudanarwa:
A matsayin lantarki na kayan aikin lantarki, farantin bipolar ne ke da alhakin tattarawa da gudanar da halin yanzu don tabbatar da ingantaccen samar da makamashin lantarki.
2. Rarraba Gas:
Ta hanyar ƙirar tashoshi mai gudana, farantin bipolar a ko'ina yana rarraba iskar iskar gas zuwa Layer mai kara kuzari, yana haɓaka halayen electrochemical.
3. Rarraba yankunan martani:
A cikin tantanin mai ko electrolyzer, faranti bipolar suna raba wuraren anode da cathode, suna hana iskar gas daga haɗuwa.
4. Rashin zafi da magudanar ruwa:
Bipolar faranti suna taimakawa wajen daidaita zafin aiki na kayan aiki da fitar da ruwa ko wasu abubuwan da aka haifar ta hanyar amsawa.
5. Tallafin injina:
Bipolar faranti suna ba da tallafi na tsari don lantarki na membrane, yana tabbatar da kwanciyar hankali da dorewa na kayan aiki.
Me yasa zabar graphite azaman kayan farantin bipolar?
Abubuwan kayan abu na faranti biyu na graphite
●High conductivity:
Babban juriya na graphite yana ƙasa da 10-15μΩ.cm (mafi kyau fiye da 100-200 μΩ · cm nakarfe bipolar farantin karfe) .
●Juriya na lalata:
Kusan babu lalata a cikin yanayin acidic na ƙwayoyin mai (pH 2-3), kuma rayuwar sabis na iya kaiwa fiye da sa'o'i 20,000.
●Mai nauyi:
Maɗaukaki shine game da 1.8 g / cm3 (7-8 g / cm3 don farantin karfe na bipolar), wanda ke da amfani don rage nauyi a aikace-aikacen abin hawa.
●Kayayyakin shingen iskar gas:
Tsarin tsari mai yawa na graphite zai iya hana shigar hydrogen yadda yakamata kuma yana da babban aminci.
●Sauƙin sarrafawa:
Kayan zane yana da sauƙin sarrafawa kuma yana iya siffanta ƙira da ƙira masu girma dabam dangane da buƙatu.
Ta yaya ake kera faranti bipolar graphite?
Tsarin samarwa nagraphite bipolar farantinya hada da:
●Shirye-shiryen albarkatun kasa:
Yi amfani da babban tsafta (> 99.9%) graphite na halitta ko foda graphite na wucin gadi.
Ƙara guduro (kamar resin phenolic) azaman mai ɗaure don haɓaka ƙarfin injina.
●Gyaran Matsi:
A gauraye abu ne allura a cikin wani mold da kuma guga man karkashin high zafin jiki (200-300 ℃) da kuma high matsa lamba (> 100 MPa).
●Maganin zane-zane:
Dumama zuwa 2500-3000 ℃ a cikin wani inert yanayi sa wadanda ba carbon abubuwa zuwa volatilize da samar da wani m graphite tsarin.
●sarrafa mai gudu:
Yi amfani da injunan CNC ko Laser don sassaƙa serpentine, layi ɗaya ko tashoshi masu tsaka-tsaki (zurfin 0.5-1 mm).
●Maganin saman:
Yin ciki tare da guduro ko karfe (kamar zinariya, titanium) shafi yana rage juriya na lamba kuma yana inganta juriya.
Menene aikace-aikacen faranti bipolar graphite?
1. Man Fetur:
- Proton musayar membrane man fetur cell (PEMFC)
- Solid Oxide Fuel Cell (SOFC)
- Kai tsaye Methanol Fuel Cell (DMFC)
2. Electrolyzer:
- samar da hydrogen ta hanyar ruwa electrolysis
- Chlor-alkali masana'antu
3. Tsarin ajiyar makamashi:
- Baturi mai gudana
4. Masana'antar sinadarai:
- Electrochemical Reactor
5. Binciken dakin gwaje-gwaje:
- Samfuran haɓakawa da gwajin ƙwayoyin mai da na'urorin lantarki
Takaita
Zane-zane na bipolarsu ne core sassa na electrochemical kayan aiki kamar man fetur Kwayoyin da electrolyzers, kuma suna da mahara ayyuka kamar conductivity, gas rarraba, da kuma rabuwa da dauki yankunan. Tare da haɓaka fasahar makamashi mai tsafta, ana ƙara amfani da faranti biyu na graphite a cikin sabbin motocin makamashi, tsarin adana makamashi, samar da sinadarin hydrogen da sauran fannoni.
Lokacin aikawa: Maris-31-2025