Efere bipolar graphitebụ isi ihe eji eme ihe na akụrụngwa electrochemical dị ka mkpụrụ ndụ mmanụ ọkụ na electrolyzers, nke a na-ejikarị ihe graphite dị ọcha eme. Ọ na-arụ ọrụ dị mkpa na mmeghachi omume electrochemical, nke a na-ejikarị eme ihe ugbu a, na-ekesa gas mmeghachi omume (dị ka hydrogen na oxygen), na mpaghara mmeghachi omume dị iche iche. N'ihi na akụkụ ya abụọ na-akpọtụrụ anode na cathode nke dị n'akụkụ otu mkpụrụ ndụ, na-eme usoro "bipolar" (otu akụkụ bụ ebe mmiri na-asọ asọ na akụkụ nke ọzọ bụ ebe a na-agbapụta cathode), a na-akpọ ya efere bipolar.
Ọdịdị nke graphite bipolar efere
Efere bipolar graphite na-enwekarị akụkụ ndị a:
1. Ebe Na-asọ asọ: A na-emepụta elu nke efere bipolar ahụ na nhazi ubi dị mgbagwoju anya iji kesaa gas mmeghachi omume (dị ka hydrogen, oxygen ma ọ bụ ikuku) ma wepụ mmiri a na-emepụta.
2. eduzi oyi akwa: Graphite ihe n'onwe ya nwere ezigbo conductivity na nwere ike na-eduzi ugbu a nke ọma.
3. Mpaghara akara: A na-emekarị ọnụ ọnụ nke efere bipolar na ihe mkpuchi mkpuchi iji gbochie ntapu gas na ntinye mmiri mmiri.
4. Ọwa jụrụ oyi (nhọrọ): N'ụfọdụ ngwa na-arụ ọrụ dị elu, enwere ike ịmepụta ọwa jụrụ oyi n'ime efere bipolar iji mezie ọnọdụ okpomọkụ nke akụrụngwa.
Ọrụ nke graphite bipolar plates
1. Nrụ ọrụ:
Dị ka electrode nke electrochemical, efere bipolar bụ maka ịnakọta na iduzi ugbu a iji hụ na mmepụta ike eletrik dị mma.
2. Nkesa gas:
Site n'ichepụta ọwa mmiri na-asọpụta, efere bipolar na-ekesa gas mmeghachi omume na oyi akwa, na-akwalite mmeghachi omume electrochemical.
3. Mpaghara mmeghachi omume nkewa:
N'ime mmanụ ọkụ ma ọ bụ electrolyzer, efere bipolar na-ekewapụta ebe anode na cathode, na-egbochi gas ka ọ ghara ịgwakọta.
4. Mkpọsa ọkụ na igbapu mmiri:
Efere bipolar na-enyere aka ịhazi ọnọdụ okpomọkụ nke akụrụngwa na igbapu mmiri ma ọ bụ ngwaahịa ndị ọzọ sitere na mmeghachi omume.
5. Nkwado igwe:
Efere bipolar na-enye nkwado nhazi maka akpụkpọ ahụ electrode , na-eme ka nkwụsi ike na ịdịte aka nke akụrụngwa.
Kedu ihe kpatara ịhọrọ graphite dị ka ihe efere bipolar?
Njirimara ihe nke graphite bipolar plates
●Nrụgharị dị elu:
Nnukwu resistivity nke graphite dị ala dị ka 10-15μΩ.cm (mma karịa 100-200 μΩ · cm nkeígwè bipolar efere) .
●Nguzogide corrosion:
Fọrọ nke nta ka ọ dịghị corrosion na acidic gburugburu ebe obibi mmanụ ụgbọala (pH 2-3), na ọrụ ndụ nwere ike iru ihe karịrị 20,000 awa .
●Dị fechaa:
Njupụta dị ihe dịka 1.8 g / cm3 (7-8 g / cm3 maka efere bipolar metal), nke bara uru maka ibelata ibu na ngwa ụgbọ ala.
●Ihe mgbochi gas:
Ọdịdị dị ukwuu nke graphite nwere ike igbochi ntinye hydrogen nke ọma ma nwee nchekwa dị elu.
●Nhazi dị mfe:
Ihe eserese dị mfe ịhazi ma nwee ike ịhazi atụmatụ na nha ọwa mgbagwoju anya dịka mkpa siri dị.
Kedu ka esi emepụta efere bipolar graphite?
Usoro mmepụta nkegraphite bipolar eferegụnyere ndị a:
●Nkwadebe akụrụngwa:
Jiri ịdị ọcha dị elu (> 99.9%) graphite eke ma ọ bụ ntụ ntụ ntụ ntụ.
Tinye resin (dị ka resin phenolic) dị ka ihe nkedo iji kwalite ike igwe.
●Ịkpụzi mkpakọ:
A na-etinye ihe ndị a gwakọtara ọnụ n'ime ihe ebu ma pịa ya n'okpuru okpomọkụ dị elu (200-300 ℃) na nrụgide dị elu (> 100 MPa).
●Ọgwụgwọ eserese:
Na-ekpo ọkụ ruo 2500-3000 ℃ na ikuku inert na-eme ka ihe ndị na-abụghị carbon na-emegharị ma na-etolite usoro graphite siri ike.
●Nhazi onye na-agba ọsọ:
Jiri igwe CNC ma ọ bụ laser wepụta ọwa serpentine, nke yiri ya ma ọ bụ nke na-agbanwe agbanwe (omimi 0.5-1 mm).
●Ọgwụgwọ elu:
Impregnation na resin ma ọ bụ ígwè (dị ka ọla edo, titanium) mkpuchi na-ebelata kọntaktị na-eguzogide ma na-eme ka nguzogide eyi.
Gịnị bụ ngwa nke graphite bipolar plates?
1. Igwe mmanụ ụgbọala:
- cell mmanụ mgbanwe proton (PEMFC)
- Mkpụrụ ndụ mmanụ oxide siri ike (SOFC)
- Methanol mmanụ ụgbọala (DMFC)
2. Electrolyzer:
- mmepụta hydrogen site na mmiri electrolysis
- Chlor-alkali ụlọ ọrụ
3. Usoro nchekwa ike:
- Batrị na-agba ọsọ
4. Ụlọ ọrụ kemịkalụ:
- Electrochemical reactor
5. Nnyocha ụlọ nyocha:
- Prototype mmepe na ule nke mmanụ ụgbọala cell na electrolyzers
Nchịkọta
Efere bipolar graphitebụ isi akụkụ nke akụrụngwa electrochemical dị ka mkpụrụ ndụ mmanụ ọkụ na electrolyzers, ma nwee ọtụtụ ọrụ dị ka conductivity, nkesa gas, na nkewa nke mpaghara mmeghachi omume. Site na mmepe nke teknụzụ ume dị ọcha, a na-ejikarị graphite bipolar plates eme ihe na ụgbọ ala ume ọhụrụ, sistemu nchekwa ike, mmepụta hydrogen kemịkalụ na mpaghara ndị ọzọ.
Oge nzipu: Mar-31-2025