Ibhethri elishajekayo lesikhathi esizayo noma alisoze lahluleka? Ukuzilungisa

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Pembekal Stesen Janakuasa Mudah Alih

Inkinga enkulu ngebhethri ye-lithium-ion manje sekuyizikhathi eziningi lapho uyishaja, futhi i-polymerization yayo ye-electrode engemihle isiba yimbi kakhulu. Lokhu ngokusobala kuyisithiyo esikhulu mayelana nekusasa lethu leselula. Muva nje, ithimba labacwaningi abavela eNyuvesi yaseStanford lenze ibhethri elikwazi ukuziphilisa, okungukuthi, alisoze lahluleka.

Eminyakeni yamuva nje, abacwaningi bebeyimizamo yokuthuthukisa ukuminyana kwamandla ama-electron e-lithium ngaphansi kwesisekelo sokunciphisa isisindo. Muva nje, ukutholwa okujabulisayo kuvela ekufakweni kwe-silicon ku-electrode, okwenza umthamo kagesi webhethri udlule umthamo wamanje we-oxide ebhethrini. Ukwandiswa ngokomzimba kwe-silicon kungafinyelela ku-300%, futhi ama-electron angancishiswa ngempumelelo ngemva kokunwetshwa, okwenza lokhu kwaziswa kuqedele ukuhlukanisa phakathi nokushaja nokukhipha okuningana okufushane.

Le nhlanganisela yokuziphilisa ithuthukiswe ngu-Wang Chao (ukuhumusha) wase-Stanford kanye no-Wu Hui, e-Beijing Tsinghua University, engakwazi ukuzilungisa ngokuphazima kweso. "Sithole ukuthi ukungezwa kwama-self-healing compounds ku-silicon electrode kunganweba impilo yayo ye-10x, futhi kulungiswe ukuhlukaniswa kwangaphambilini emahoreni ambalwa," kusho u-Pao Zhen&39;an wase-Stanford (ukuhumusha) uProfesa Bao Zhen&39;an Usize ekuthuthukiseni amagobolondo amarobhothi e-elekthronikhi nge-elasticity. “Ukuziphilisa akubalulekile kangako, sifuna ukuhlanganisa lesi sakhiwo sibe yibhethri ye-lithium-ion futhi sandise impilo yayo yesevisi.

"UProfesa Wang uthe esihlokweni esishicilelwe. Ubuchwepheshe bamanje bebhethri bungaqinisekisa kuphela ukuthi akukho ukuncishiswa phakathi nokujikeleza kokushaja okungu-100. Ithimba locwaningo lithemba ukuthi ibhethri lobuchwepheshe bokuzipholisa lingaqinisekisa ukuthi umjikelezo wokushaja umakhalekhukhwini we-500 awunciphisi, futhi imoto kagesi ayincishiswa imijikelezo yokushaja engu-3,000.