Uhlobo olusha lwephepha lunekhono eliyisimanga lokugcina amandla, njengama-supercapacitors. Yakhiwa ngabacwaningi elabhorethri eLongoping University of Organic Electronics, eSweden, futhi njengoba besho, iphepha linamandla okuvulaesahluko esisha ngamandla avuselelekayo.
Lokho okubizwa ngokuthi “iphepha lamandla” kwenziwa kusuka kumafelulose e-cellulose ayevulelwa amanzi amaningi anomfutho aze aphenduka abe yi-fibers 20 nanometers ubukhulu. Ngemuva kwalokho le micu yayihlanganiswa ne-polymer ekhokhiswe ngogesi, ngemuva kwalokho ibunjiwe ibe ishidi.
Lo mkhiqizo omusha odingekayo emhlabeni lapho ukusetshenziswa okubanzi kwemithombo yamandla evuselelekayo kudinga izindlela ezintsha zokugcina amandla, kungakhathalekile isikhathi sonyaka nokuthi kunomoya, lilanga noma kunamafu namuhla.
Ishidi ngalinye, elinganisa amasentimitha ayi-15 ububanzi kanye namagamu athile alishumi kwesigamu, lingagcina amandla amaningi njengabaphathi abakhulu bezitolo emakethe. Izinto ezibonakalayo zingashajwa kaningi, futhi inkokhelo ngayinye ithatha imizuzwana embalwa.
Lapho imicu ye-cellulose isisisombululo samanzi, kufakwa kubo i-polymer ekhokhiswa ngogesi (PEDOT: PSS), futhi ngesisombululo semanzi. I-polymer yabe isakha ifilimu elincane elizungeze imicu.
"Imicu ehlanganisiwe iyahlangana, kanti ketshezi oluvale phakathi kwabo lusebenza njenge-electrolyte," kuchaza uJesper Edberg, ongumfundi odokotela owenze izivivinyo zabanye abacwaningi.
“Amafilimu akho amancane esebenza njengama-capacitor akhona isikhashana. Esikwenzile kube ukukhiqizwa kwezinto ngezindlela ezintathu, ”kuchaza u-Xavier Crispin, uprofesa wezobuchwepheshe be-elekhtronikhi kanye nomlobi mbhalo wecwaningo.
Iphepha alinamanzi futhi lakhiwa ngaphandle kokusetshenziswa kwamakhemikhali noma ngezinto eziyingozi.
Umbhalo wephepha lamandla ubukeka futhi uzizwa ufana nephepha lepulasitiki. Abaphenyi banqume ukujabulisa futhi benza i-swan kusuka ephepheni elilodwa le -amiami, okuthi, ngeshwa, banikeze umbono wamandla wezinto ezibonakalayo.
Ukuqhubeka nokuthuthukisa iphepha labo lamandla, abacwaningi baphinde babambisana neRoyal Institute of Technology KTH, iSweden Research Institute Innventia, iDanish Technical University kanye neNyuvesi yaseKentucky.
Iphepha le-Energy manje seliphule amarekhodi womhlaba amane: inani eliphakeme kakhulu nomthamo wezinto eziphilayo ezisebenza ngogesi, isilinganiselo esilinganiswa kakhulu ku-organic conductor, amandla aphakame kakhulu ngasikhathi sinye enza ion nama-elektroni, kanye nokusebenza okuphezulu kakhulu kwe-phenlectrode ku-transistor.
Imiphumela yocwaningo yashicilelwa ephephabhukwini i-Advanced Science.
Yini elandelayo? Ukwakha indlela yokukhiqiza isisindo sephepha lamandla. Abaphenyi basanda kuthola uxhaso lokwakha isikhungo sokukhiqiza esizokhiqiza izinto ezibonakalayo.
Udinga ukuthi ungene ngemvume ukuze ushiye amazwana.
Ngabe isebenza kanjani ibhethri lephepha?
Ama-elekthronikhi akhiqizwayo lapho amagciwane akhiqiza amandla adlula kulolwelwesi lweseli. Amandla aphumelelayo angasetshenziswa ukushaja ibhethri ngama-electrodes angaphandle.
Ososayensi basebenzise amanzi noma olunye uketshezi olususelwa emanzini ukuvula ibhethri lephepha. Lapho esephakathi nendawo koketshezi, amagciwane ayasebenza futhi aqale ukukhiqiza amandla, anele ukudla, ngokwesibonelo, wokubala wedijithali.
Njengengxenye yokuhlolwa, kwembulwa umphumela we-oxygen ekusebenzeni kwensimbi yamandla “yebhakthiliya.” I-oksijini idlula kalula ephepheni futhi ingaqukatha ama-elektroni akhiqizwa ngamagciwane. Kuliqiniso, i-oksijini inciphisa kancane amandla wokuphehla amandla, kepha lokhu kusebenza kuncane.
Ibhethri lephepha lingumkhiqizo olahlwa. Okwamanje, kudalwe uhlobo lwesibonelo, impilo yeshalofu engaba izinyanga ezine. Ososayensi bayaqhubeka nokusebenza ezimeni ukukhuphula ukusebenza kahle futhi baqinisekise nesikhathi eside sokugcina.
Ngezicelo eziningi ezisebenzayo, amandla amabhethri ephepheni nawo kudingeka ukuthi andiswe cishe izikhathi eziyi-1000. Lokhu kutholakala ngokufaka isitaki nokuxhuma ngokufana emithonjeni yamandla emaphepha ehambelana.
Okwamanje, abasunguli bavele bafake isicelo selungelo lobunikazi futhi bafuna abatshalizimali ukuhweba ngomkhiqizo.
Isidingo sempahla yamaphepha
Ezindaweni ezikude zomhlaba lapho izinsiza zamandla zilinganiselwe, izinto zansuku zonke - izitolo kagesi namabhethri - kuyintofontofo kubasebenzisi.
Abasebenzi bezokunakekelwa kwezempilo ezifundeni ezinjengalezi ngokuvamile abanawo ugesi kumishini yokuxilonga amandla. Ngaso leso sikhathi, amabhethri akudala awatholakali noma abiza kakhulu.
Kungenxa yezifunda ezinjengale lapho imithombo yamandla emisha idingeka ngokuphuthumayo - ayibizi futhi iyaphatheka. Ukuqanjwa kohlobo olusha lwebhethri - iphepha, elenziwa ngamagciwane, kuyindlela yokuxazulula izinkinga ezikhona.
Iphepha linempahla eyingqayizivele, esebenza njengendwangu yokukhiqiza ama-biosensors. Kuyinto engabizi, elahlekayo, esetshenziswayo enendawo enkulu ephezulu.
Amabhethri wezohwebo asendulo anamandla amakhulu futhi abiza kakhulu. Lolu hlobo lomthombo wamandla alukwazi ukuhlanganiswa ezingxenyeni ezingamaphepha. Ngakho-ke, isisombululo esihle kakhulu yi-bio-betri.
