Na bophelo ba betri ea lithium ion bo ka atolosoa ho eketsa element ea hydrogen?

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Soláthraí Stáisiún Cumhachta Inaistrithe

Bafuputsi ba Raunns Rifo Moore National Laboratory (LLNL) ba fumane hore matla a betri a ka ntlafatsoa haholo ha feela karolo ea hydrogen e kenngoa ho li-electrode tsa betri ea lithium-ion, e tla eketsa nako ea ts&39;ebetso le ho potlakisa ts&39;ebetso ea phetisetso. Betri ea lithium ion ke mofuta oa betri o ka nchafatsoang, &39;me lithium ion e tlosoa ho tloha betereng ho ea ho electrode e ntle nakong ea ho tsoa,&39; me lithium ion ea electrode e ntle e khutlisetsoa morao ho electrode e mpe nakong ea ho tjhaja. Betri ea lithium ion ke mofuta oa betri o ka nchafatsoang, &39;me lithium ion e tlosoa ho tloha betereng ho ea ho electrode e ntle nakong ea ho tsoa,&39; me lithium ion ea electrode e ntle e khutlisetsoa morao ho electrode e mpe nakong ea ho tjhaja.

Libetri tsa lithium ion li na le litšobotsi tse &39;maloa tsa bohlokoa, voltage, le matla a matla, ts&39;ebetso ea litšoaneleho tsena qetellong e khethoa ke motsoako oa li-ion tsa lithium le lisebelisoa tsa elektrode. Sebopeho sa electrode, liphetoho tse poteletseng tsa k&39;hemistri le libopeho li ka ama haholo kamoo li-ion tsa lithium li tlamahaneng ka matla ho tlamahano ea bona e matla. Ka liteko le lipalo, baqapi ba lipatlisiso ba Livermore National Lab ba fumane hore ka betri ea lithium-ion, electrode ea foam ea hydrogen-treated graphene e bonts&39;a matla a holimo le matla a phetisetso a potlakileng.

"Liphumano tsena li fana ka tlhahlobo ea boleng, e thusang ho rala li-electrode tse matla haholo tse ipapisitseng le lisebelisoa tsa graphene," ho boletse rasaense oa LLNL Morriswang. Hape ke e mong oa bangoli ba sena se hatisitsoeng ho Natural Science Report (NatureScientificReports Journal). Lisebelisoa tsa Gallene ts&39;ebelisong ea khoebo ea lisebelisoa tsa polokelo ea matla, ho kenyelletsa libeteri tsa lithium-ion le li-supercapacitor, tse amang ka botebo bokhoni ba eona ba ho hlahisa thepa ena ka theko e tlase.

Mokhoa o sebelisoang hangata oa ho kopanya lik&39;hemik&39;hale qetellong o tla siea palo e kholo ea liathomo tsa haedrojene, e leng ho leng thata ho fumana liphello tsa ts&39;ebetso ea electrochemical ea graphene. Liteko ho bafuputsi ba Livermore Lab li fumane hore element ea hydrogen e ntlafatsa ka boomo kalafo ea mocheso oa motheo oa graphene e nang le lijo-thollo, e hlileng e ka ntlafatsang lebelo la sekhahla. Kamora bofokoli ba karolo ea hydrogen le mefokolo ea graphene, pore e nyane ea buloa, e ka khothaletsang li-ion tsa lithium habonolo ho kenella, ka hona ho ntlafatsa sekhahla sa phetisetso.

Bokhoni bo eketsehileng ba cyclicable bo ka fanoa ka ion ea lithium e khomaretsoeng moeling o mocha (boholo ba ho khomarela karolo ea hydrogen). "Ntlafatso ea ts&39;ebetso ea elektrode ke katleho ea bohlokoa, e ka bulang lits&39;ebetso tse ngata tsa lefats&39;e," ho boletse mofuputsi oa postdoctoral oa Livermore Laboratory Materials Science le sengoli sa bohlokoa sa lipampiri tsa lipatlisiso. E le ho kenya kopo bakeng sa tšebeliso ea litšitiso tsa hydrogenation le hydrogenation ho lithium ion polokelo ea thepa ea graphene, bafuputsi ba ile ba sebelisa maemo a fapaneng a phekolo ea mocheso a pepesitsoeng ke karolo e tlamang ea hydrogen, e lebisang tlhokomelo ho thepa ea electrochemical ea 3D graphene nanofoam (GNF) ea eona.

E entsoe ka graphene e sa sebetseng hantle. Bafuputsi ba sebelisa 3D graphite nano foam hobane e na le mefuta e fapaneng ea lisebelisoa, ho kenyelletsa polokelo ea haedrojene, catalysis, filtration, insulation, absorption ea matla, capacitance desal, supercapacitors le lithium-ion libetri, joalo-joalo. Litšobotsi tsa sekhomaretsi sa graphene 3D foam se se nang sekhomaretsi se ke ke sa ba thata le ho feta hobane tlatsetso e rarahane haholoanyane, ka hona e ka sebelisoa e le khetho e nepahetseng bakeng sa lipatlisiso tsa mochini.

"Re fumane hore ka mor&39;a phekolo ea hydrogen element, graphite olee foam electrode e na le tsoelo-pele e kholo. Ka ho kopana ha teko ena, re tla latela litšebelisano tse poteletseng le tsoelo-pele pakeng tsa bokooa le tharollo ea haedrojene. E le ho arabela liphellong tsa liphetoho tse nyenyane tsa k&39;hemistri ea graphene le morphology, ho ka khoneha ho tlisa liphello tse makatsang tsa ts&39;ebetso, "bafuputsi ba LLNL le bona ba na le sengoli se seng sa thuto ena" Brandonwood.

Ho ea ka phuputso ena, phekolo ena e laoloang ea hydrogen element e ka boela ea sebelisoa ho lisebelisoa tse ling tsa anode tse thehiloeng ho graphene ho finyella phetisetso e ntlafalitsoeng ea lithium ion le lisebelisoa tsa polokelo tse ka sebelisoang hape.