Gịnị bụ Okpomọkụ kwụsie ike?

Nkwụsi ike okpomọkụ na-ezo aka n'ikike nke ihe ma ọ bụ sistemu iji dowe ihe ndị na-agbanwe agbanwe na arụmọrụ n'ofe ọnọdụ okpomọkụ dị iche iche. Àmụmà a na-ekpebi otú ihe si eguzogide mmebi, mgbanwe akụkụ, ma ọ bụ mgbanwe ọrụ mgbe ọ na-ekpughere okpomọkụ ma ọ bụ oyi. A na-atụ nkwụsi ike nke ọnọdụ okpomọkụ site na nyochaa ndahie ihe onwunwe n'ime oge na ọnọdụ okpomọkụ, nke a na-egosipụtakarị dị ka mgbanwe pasenti site na ụkpụrụ ntọala.

Nkwụsi ike okpomọkụ na-arụ ọrụ n'ụkpụrụ ahụ na ihe na-eme mgbanwe anụ ahụ na kemịkal mgbe ike ọkụ na-agbanwe ihe owuwu molekụla. N'ọkwa atọm, okpomọkụ na-abawanye na-eme ka njikọ molekụla na-ama jijiji nke ukwuu, nwere ike ibute nbibi ma ọ bụ nhazigharị.

Nkwụsi ike nke ihe ọ bụla dabere na ike ịgbalite ya{0}opekempe ike achọrọ maka mgbanwe nhazi. Ihe ndị nwere ike ịgbalite dị elu na-eguzogide mmebi okpomọkụ nke ọma. Dịka ọmụmaatụ, seramiki na-egosipụta nkwụsi ike dị elu karịa nke polymer n'ihi njikọ ion siri ike na covalent ha.

Usoro abụọ bụ isi na-achịkwa nkwụsi ike nke okpomọkụ: mmetụta ndị na-agbanwe agbanwe (dị ka mgbasawanye okpomọkụ) na mmetụta a na-apụghị ịgbagha agbagha (dị ka ire ere ma ọ bụ ntụgharị oge). Mgbanwe mgbanwe na-enye ohere ka ihe laghachi azụ n'ọnọdụ mbụ ha mgbe ọnọdụ okpomọkụ na-adaba adaba, ebe mgbanwe na-enweghị ike ịgbanwe agbanwe na-agbanwe ihe onwunwe kpamkpam.

Ọnụọgụ okpomọkụ na-akọwapụta ka akụrụngwa si agbanwe na okpomọkụ. Ihe nwere ọnụọgụ okpomọkụ nke 0.001/ ogo na-enweta mgbanwe ihe onwunwe 0.1% maka mgbanwe okpomọkụ nke ogo 10. Ọnụ ọgụgụ dị ala na-egosi nkwụsi ike ka mma.

Temperature Stability

Calorimetry nyocha dị iche iche (DSC)na-eje ozi dị ka ọkọlọtọ ọla edo maka ntule nkwụsi ike nke okpomọkụ. Usoro a na-atụnye okpomọkụ n'ime ma ọ bụ si na nlele dị ka okpomọkụ na-agbanwe na ọnụego a na-achịkwa, ọ na-abụkarị 10 degrees / min. DSC na-achọpụta okpomọkụ mgbanwe dị oke egwu gụnyere mgbanwe iko (Tg), ebe mgbaze, na mmalite ire ere. Usoro a na-enye ụkpụrụ ike ịgbalite na nkenke n'ime ± 2%.

Nyocha Thermogravimetric (TGA)egwu mgbanwe mgbanwe n'okpuru kpo oku na-achịkwa. Nnyocha ọmụmụ 2024 e bipụtara na Nature Communications gosipụtara na TGA nwere ike ịchọpụta nbibi ọnọdụ okpomọkụ ziri ezi n'ime ogo 0.5. Usoro a na-egosi na ọ bara uru karịsịa maka ihe ndị na-emebi emebi na-enweghị agbaze a na-ahụ anya, dị ka polymers na composites.

Nyocha ịka nká nke isothermalna-ekpughe ihe na okpomọkụ na-ebuli elu mgbe niile maka ogologo oge{0}na-abụkarị awa 1,000 ruo 10,000. Ndị injinia na-enyocha njide ihe onwunwe n'oge oge, na-agbakọ ọnụego nbibi site na nha Arrhenius. Usoro a na-ebu amụma ogologo oge{7} nkwụsi ike site na data mkpirisi agbagoro ọsọ ọsọ{8}.

Nkọwa nkwụsi ike nke okpomọkụ na-akọkarị ụkpụrụ n'ime oge abụọ: obere-Oge (1 hour) na ogologo oge- (awa 24 ma ọ bụ karịa). Maka ngwa elektrọnik ziri ezi, ndị nrụpụta nwere ike ịkọwa nkwụsi ike dị ka ogo ± 0.001 karịa ogologo oge, ebe ihe nrụpụta nwere ike ikwe ka ± 5% mgbanwe ihe onwunwe gafee oke ọrụ ha.

Nlebanya okpomọkụ n'ezie{{0}na-eji sensọ agbakwunyere iji soro nkwụsi ike n'oge arụ ọrụ. Sistemu dị elu na-eji thermistors ma ọ bụ ihe nchọpụta okpomọkụ (RTD) nwere oge nzaghachi n'okpuru 100 milliseconds, na-enye njikwa ziri ezi na ngwa chọrọ nkwụsi ike millidegree.

Ngwakọta kemịkalụfundamentally ekpebi thermal omume. Ngwakọta inorganic n'ozuzu na-akawanye ihe ndị sitere n'okike{1}aluminom oxide na-ejigide nkwụsi ike ruo ogo 1,800, ebe ọtụtụ polymers organic na-eweda n'okpuru ogo 400. Ọnụnọ nke agbụ na-enweghị afọ ojuju, ihe owuwu aromatic, ma ọ bụ heteroatoms na-emetụta nke ọma ụzọ ire ere.

Molecular architecturena-arụ ọrụ dị mkpa. Ndị polymer nwere njikọ chiri anya na-egosipụta nkwụsi ike emelitere ma e jiri ya tụnyere ụdọ ahịrị n'ihi na njikọ njikọ na-amachibido mmegharị molekụla. Ọmụmụ ihe ọmụmụ 2023 na ihe dị elu chọpụtara na ịba ụba njupụta crosslink site na 10% ruo 30% kwalitere nkwụsi ike thermal site na ihe dịka ogo 60 na resin epoxy.

ikuku ikukuna-emetụta oke nbibi. Gburugburu oxidative na-eme ka ndakpọ ngwa ngwa{1}ihe ndị kwụsiri ike ruo ogo 300 na nitrogen nwere ike daa na ogo 200 na ikuku. Ngwa ụfọdụ chọrọ ikuku adịghị arụ ọrụ ma ọ bụ ọnọdụ oghere iji chekwaa nkwụsi ike na oke okpomọkụ.

Ọdịnaya nke mmirina-emetụta ma nkwụsi ike nke anụ ahụ na nke kemịkal. Mkpụrụ ndụ mmiri nwere ike ime ka mmeghachi omume hydrolysis gbanwee ma ọ bụ gbanwee okpomọkụ mgbanwe oge. Ngwa ọgwụ na-achọkarị nchekwa n'okpuru ogo 25 yana iru mmiri na-erughị 60% iji kwado nkwụsi ike.

Mechanical nrụgidejikọtara ya na okpomọkụ na-emepụta mmetụta mbibi synergistic. Ihe ndị dị n'okpuru ibu ntanye na-egosipụta nkwụsi ike ọkụ dị ala karịa ụdị nhụsianya na-enweghị isi. Ihe omume a na-adị oke egwu na ngwa nhazi ebe akụrụngwa n'otu oge na-enweta ibu ọkụ na igwe.

Ugboro ịgba igwe na-ekpo ọkụihe dị ka oke okpomọkụ. Akụkụ nke na-eguzogide ogo 100 kwụ ọtọ nwere ike daa mgbe a na-agba ya n'etiti ogo 25 na ogo 100 ugboro ugboro n'ihi ike ọgwụgwụ ọkụ. Ọnụọgụ okirikiri ọdịda na-esote ike{5}}mmekọrịta iwu nwere oke okpomọkụ dị iche iche.

Temperature Stability

Ngwa eletrọnịkị na-emepụta nnukwu okpomọkụ n'oge a na-arụ ọrụ, na-eme ka nkwụsi ike okpomọkụ bụrụ ihe kacha mkpa maka ntụkwasị obi. Microprocessors ọgbara ọhụrụ na-emepụta fluxes okpomọkụ karịrị 100 W/cm², na-achọ ihe ndị na-arụ ọrụ site na - 40 degrees ruo 125 degrees . Semiconductors dabeere na silicon na-egosipụta ezigbo nkwụsi ike dị n'ime ya, yana obere ihe onwunwe na-agafe n'ofe a.

Igwe ọkụ eletrik na-eche ọnọdụ ndị siri ike ihu. IGBTs na MOSFET n'ime ụgbọ ala eletrik ga-arụ ọrụ nke ọma na oke okpomọkụ ruru ogo 175. Ihe nkwakọ ngwaahịa dị elu nwere ọnụọgụ okpomọkụ dị n'okpuru 50 ppm / ogo na-eme ka njirimara eletrik dị n'ime nkọwapụta n'agbanyeghị ọdịiche okpomọkụ.

Ọdịmma okpomoku na ngwa eletrọnịkị na-egosipụta dị ka mpụ oke, mmụba nhịahụ dị ugbu a na mperi oge. Mmụba okpomọkụ dị ogo 10 nwere ike ịgbapụta mmiri semiconductor okpukpu abụọ, na-emetụta oriri ike yana nwere ike ịkpata nsogbu sekit. Sistemụ njikwa okpomọkụ na-eji ihe mgbanwe oge na-emezi nkwụsi ike n'ime ogo ± 2 ọbụlagodi n'okpuru ọrụ siri ike.

Batrị lithium ion na-anọchite anya otu n'ime teknụzụ nchekwa nchekwa ike kacha nwee mmetụta{{0}. Batrị ndị a na-arụ ọrụ nke ọma n'etiti ogo 15 na ogo 35, yana arụmọrụ na-emebi ngwa ngwa na mpụga windo a. Nkwụsi ike okpomọkụ na-emetụta ikike batrị, ndụ okirikiri, na nchekwa.

Na obere okpomọkụ n'okpuru 0 degrees, lithium ion batrị electrolytes na-aghọ viscous, na-ebelata ike ionic conductivity. Ike nwere ike ịda site na 30% ma ọ bụ karịa na -20 degrees . N'ụzọ dị egwu karị, ịchaji na okpomọkụ na-ekpo ọkụ na-etinye ihe nkwụnye lithium plating-metallic lithium na anode nke na-ebelata ikike na-adịgide adịgide ma nwee ike ịkpata obere sekit dị n'ime.

Okpomọkụ dị elu karịa ogo 45 na-eme ka usoro mbibi dị ngwa na batrị lithium ion. Maka mmụba ogo 10 ọ bụla karịrị oke kacha mma, ndụ okirikiri na-agbadata 50%. Na ogo 60 na n'elu, nrụpụta electrolyte na-eme ngwa ngwa, na-emepụta gas na-eme ka nrụgide cell dịkwuo elu. Mgbapụ okpomọkụ{7}} mmeghachi omume exothermic na-achịkwaghị achịkwa{8} na-aghọ nnukwu ihe ize ndụ karịa ogo 80 .

Sistemụ njikwa batrị dị elu na-enyocha okpomọkụ cell na nkenke nke ± 1 ogo, na-eme ka ọ dị jụụ ma ọ bụ kpo oku iji nọgide na-enwe windo ọrụ a na-anabata. Ihe owuwu njikwa okpomọkụ nke Tesla, dịka ọmụmaatụ, na-eji loops jụrụ oyi glycol iji dobe ngwugwu batrị n'ime ogo 5 nke ọnọdụ okpomọkụ n'oge ma chaja ma na-ebugharị.

Akụkụ ụgbọ elu na-atachi obi na oke okpomọkụ dị iche iche, site na -55 na elu ụgbọ mmiri ruo ogo 200 + n'akụkụ injin. Titanium alloys na nickel{5}}dabere na superalloys na-eje ozi na mpaghara okpomọkụ dị elu{8} n'ihi ike ha idowe akụrụngwa n'elu 600 degrees. Ihe ndị a na-enweta ule siri ike maka ụkpụrụ AEC-Q100, na-achọpụta nkwụsi ike site na 1,{11}} okirikiri okpomọkụ.

Ngwakọta agwakọta n'ime ikuku ikuku ga-enwerịrị nkwụsi ike n'ofe envelopu ụgbọ elu ahụ. Carbon fiber epoxy composites na-egosiputa ọnụọgụ mgbasawanye ọkụ nke 0.5-2ppm / ogo ya na eriri - ugboro 50 dị ala karịa aluminom. Nkwụsi ike a na-egbochi mgbagha okpomọkụ nke nwere ike imetụta ikuku ikuku ma ọ bụ iguzosi ike n'ezi ihe.

Ndị na-emepụta kemịkalụ na-arụkarị ọrụ na okpomọkụ dị elu ebe nkwụsi ike nke okpomọkụ na-ekpebi nchekwa usoro. Mmeghachi omume exothermic chọrọ ihe na-egbochi ire ere n'okpuru ma ọnọdụ nkịtị na iwe iwe. Nnwale nkwụsi ike nke okpomọkụ na-achọpụta oke okpomọkụ arụ ọrụ ma na-enye data maka nhazi usoro enyemaka.

Mmiri na-ebufe ọkụ na-ekesa site na usoro mmepụta ihe aghaghị iguzogide mgbawa ọkụ. Mmiri sịntetik nke oge a na-adịgide ruo ogo 350 +, ma e jiri ya tụnyere ogo 250 maka mmanụ ịnweta nkịtị. Ogologo a gbatịkwuru na-enyere aka ịnyefe ọkụ na-arụ ọrụ nke ọma ma na-ebelata oge mmezi.

Mbibi ihe sitere na nkwụsi ike okpomọkụ ezughị oke na-egosipụta n'ofe ụdị ọdịda dị iche iche. Mwepu ọkụ na-emepụta ihe na-agbanwe agbanwe nke na-agbanwe ihe mejupụtara kemịkalụ ma mepụta oghere na ihe siri ike. Nrụ arụ ndị a na-agbasa, na-emecha na-ebute ọdịda igwe.

Na polymers, yinye scission na-ebelata ịdị arọ nke mkpụrụ ndụ ihe nketa, na-ebelata ike nkwụsị na ịba ụba. Ọmụmụ ihe ọmụmụ 2024 na-enyocha mmebi polyethylene na ogo 120, na-ahụ mbelata ike 40% mgbe awa 500 gachara. Oxidation na-eme ka usoro a dịkwuo njọ, na-etolite otu carbonyl nke na-eme ka mmebi ahụ dịkwuo njọ.

Nkwụsi ike nke akụkụ na-akpata nsogbu dị egwu na ngwa ziri ezi. Ngwa ngwa anya na-enwe mgbasawanye ọkụ karịrị nnabata imewe na-efunahụ nlebara anya ma ọ bụ nhazi. Ọnụọgụ 1 ppm/nrịị nke mgbasawanye ọkụ na-atụgharị gaa na mgbanwe akụkụ 10 μm kwa mita maka ngbanwe okpomọkụ dị ogo 10{5}} ga-emebi ọtụtụ sistemu dị elu-.

Ọdịda eletrọnịkị sitere na enweghị ike ikpo ọkụ gụnyere njehie oge, nsogbu iguzosi ike n'ezi ihe mgbaàmà, na mmebi na-adịgide adịgide. Ihe nkwonkwo na-ahụ maka ịgba ígwè na-ekpo ọkụ ugboro ugboro na-etolite mgbawa ike ọgwụgwụ, na-abawanye nguzogide eletrik ruo mgbe emepere- ọdịda okirikiri ga-apụta. Nnyocha na-egosi ndụ nkwonkwo solder na-esochi mmekọrịta nke igbe ozu -Mmekọrịta Manson, yana usoro okirikiri iji daa n'ụzọ dabara adaba na njupụta nke ikuku ọkụ.

Ihe egwu nchekwa na-apụta mgbe agafeela oke nkwụsi ike ọkụ. Mmeghachi omume exothermic na-agba ọsọ na usoro kemịkal nwere ike ibute mgbawa. Batrị thermal runaway na-arụpụta okpomọkụ karịrị ogo 800, yana ọgbọ gas na-ere ọkụ. Nlekọta okpomọkụ kwesịrị ekwesị dabere na data nkwụsi ike ziri ezi na-egbochi ọdịda ọdachi dị otú ahụ.

Mmetụta akụ na ụba nke nkwụsi ike okpomọkụ ezughị oke gụnyere mbelata ndụ akụrụngwa, mmụba ụgwọ ọrụ na mfu mmepụta. Akụrụngwa na-arụ ọrụ n'akụkụ oke okpomọkụ na-ahụ maka ịdịwanye ngwa ngwa, nwere ike na-achọ nnọchi akụrụngwa afọ tupu ndụ imewe. Ụlọ ọrụ mmanụ na gas na-eme atụmatụ na nkwụsi ike nke okpomọkụ dị n'ime mmiri na-egwupụta ihe nwere ike ibelata ọnụ ahịa oge nkwụsị site na $500M+ kwa afọ.

Temperature Stability

Ngwa eletrọnịkị ndị ahịa na-arụ ọrụ n'enweghị nsogbu n'etiti ogo 0 na ogo 45, n'agbanyeghị na ọnọdụ nchekwa nwere ike ịgbatị site na - ogo 20 ruo ogo 60 . Igwe eletrọnịkị ụlọ ọrụ mmepụta ihe na ụgbọ ala na-achọ ọkwa sara mbara, mgbe mgbe -40 ogo na ogo 85 maka ọrụ yana -55 ruo ogo 125 maka nchekwa. Igwe eletrọnịkị dị elu pụrụiche maka ikuku ikuku ma ọ bụ ngwa ala nwere ike ịrụ ọrụ ntụkwasị obi karịa ogo 200 site na iji silicon carbide semiconductors na nkwakọ ngwaahịa seramiiki.

Ọtụtụ atụmatụ na-akwalite nkwụsi ike okpomọkụ. Ịbawanye njupụta njikọ njikọ na polymers na-egbochi mmegharị molekụla ma na-ebuli okpomọkụ ire ere. Ịgbakwunye ihe ndị na-ekpo ọkụ na-ekpo ọkụ dị ka irighiri seramiiki na-eme ka nguzogide ihe ọkụkụ dị mma. Mgbanwe kemịkalụ dị ka itinye mgbanaka aromatic ma ọ bụ otu nwere fluorinated na-abawanye ike njikọ. Maka ọla, ihe ndị na-emepụta ihe na-etolite akwa oxide kwụsiri ike nke na-echebe megide oxidation na oke okpomọkụ. Teknụzụ mkpuchi mkpuchi na-etinye akwa mkpuchi nchebe na-agbatị ogologo ọrụ nke ihe ntọala.

Ee, mmebi okpomọkụ na-ebutekarị mgbanwe na-enweghị ike ịgbanwe. Oke okpomoku dị oke egwu nwere ike ịkpalite ndakpọ kemịkalụ, mgbanwe oge, ma ọ bụ mgbanwe microstructural nke na-agbanwe ihe onwunwe kpamkpam. Otú ọ dị, ihe ndị na-enwe nanị mmetụta anụ ahụ dị ka mgbasawanye okpomọkụ na-agbakekarị mgbe okpomọkụ na-edozi. Ihe dị iche bụ ma njikọ kemịkal na-agbaji n'oge ikpo ọkụ. Ozugbo ihe owuwu molekụla mebiri emebi, ịlaghachi na okpomọkụ dị ala enweghị ike iweghachi mmebi ahụ.

Ngwa ikuku na nchekwa na-achọ nkwụsi ike ọkụ pụrụ iche, yana ihe na-arụ ọrụ n'ofe ogo 250 + okpomọkụ. Ụlọ ọrụ mmanụ na gas chọrọ nkwụsi ike na gburugburu ebe mgbada siri ike gafere ogo 200 na nrụgide karịa 25,000 psi. Igwe ike nuklia na-eji ihe kwụsiri ike ruo ogo 500 + ruo ogologo oge. Usoro nrụpụta dị elu dị ka ntinye kemịkalụ kemịkalụ na-arụ ọrụ na ogo 1,000 +, na-achọ mkpụrụ na akụrụngwa nwere nkwụsi ike dị oke ọkụ. Ngwa oghere chere oke oke ihu, site na -270 ogo na ndò ruo ogo +120 na ìhè anyanwụ.

Nkwụsi ike ọnọdụ okpomọkụ na-amachi ebe na otu a ga-esi tinye ihe. Ịghọta ihe ndị na-emetụta omume okpomọkụ {{1}site na njikọ molekụla ruo na ọnọdụ gburugburu ebe obibi{2} na-enyere ndị injinia aka ịhọrọ ngwa kwesịrị ekwesị na chepụta usoro njikwa ọkụ dị irè. Ka ngwa na-aga n'ihu na njupụta ike dị elu yana gburugburu ebe siri ike, ọganihu na okpomọkụ{4}}ihe kwụsiri ike na usoro nha na-aga n'ihu na-agbasawanye ihe nwere ike ime na teknụzụ.

Njikọ nke nkwụsi ike nke okpomọkụ na ihe ndị ọzọ na-emepụta ihe na-emepụta ihe mgbagwoju anya. Ihe nwere ike na-enye ezigbo nkwụsi ike nke okpomọkụ mana ike arụ ọrụ adịghị mma, ma ọ bụ ọzọ. Ihe ịga nke ọma chọrọ ịhazi ọtụtụ ihe achọrọ ka ị na-asọpụrụ ihe mgbochi ndị bụ isi nke fisiks thermal tinyere.