Ma silicon anode akopa chidwi kwambiri mumakampani a batri.Poyerekeza ndimabatire a lithiamu-ionpogwiritsa ntchito graphite anodes, amatha kupereka mphamvu 3-5 nthawi zazikulu.Kuchuluka kokulirapo kumatanthauza kuti batire ikhala nthawi yayitali pambuyo pa chiwongolero chilichonse, chomwe chingatalikitse kwambiri mtunda woyendetsa magalimoto amagetsi.Ngakhale silicon ndi yochuluka komanso yotsika mtengo, zowongolera zotulutsa za Si anode ndizochepa.Pa nthawi iliyonse yamalipiro-kutulutsa, voliyumu yawo idzakulitsidwa kwambiri, ndipo ngakhale mphamvu yawo idzachepa, zomwe zidzatsogolera kuphulika kwa tinthu ta electrode kapena delamination ya filimu ya electrode.

Gulu la KAIST, lotsogozedwa ndi Pulofesa Jang Wook Choi ndi Pulofesa Ali Coskun, linanena pa 20 July ndi zomatira zomatira zamagulu akuluakulu a lithiamu ion okhala ndi silicon anodes.

Gulu la KAIST linaphatikiza ma pulleys a molekyulu (otchedwa polyrotaxanes) mu zomangira ma elekitirodi a batri, kuphatikiza kuwonjezera ma polima ku ma elekitirodi a batri kuti amangirire ma elekitirodi ku magawo azitsulo.Mphete za polyrotane zimakongoletsedwa ndi mafupa a polima ndipo zimatha kuyenda momasuka motsatira chigobacho.

Mphete za polyrotane zimatha kuyenda momasuka ndi kusintha kwa voliyumu kwa tinthu ta silicon.Kuzembera kwa mphete kumatha kusunga mawonekedwe a silicon particles, kuti asasokonezeke mukusintha kwa voliyumu mosalekeza.Ndizofunikira kudziwa kuti ngakhale tinthu tating'ono ta silicon tophwanyidwa timakhalabe tating'ono chifukwa cha zomatira za polyrotane.Ntchito ya zomatira zatsopanozi ndizosiyana kwambiri ndi zomatira zomwe zilipo (nthawi zambiri ma polima osavuta a mzere).Zomatira zomwe zilipo zili ndi mphamvu zochepa ndipo motero sizingathe kusunga mawonekedwe a tinthu.Zomatira zam'mbuyo zimatha kumwaza tinthu tophwanyidwa ndikuchepetsa kapena kutaya mphamvu ya ma elekitirodi a silicon.

Wolembayo amakhulupirira kuti ichi ndi chiwonetsero chabwino kwambiri cha kufunikira kwa kafukufuku woyambira.Polyrotaxane adapambana Mphotho ya Nobel chaka chatha chifukwa cha lingaliro la "makina omangira"."Mechanical bonding" ndi lingaliro lomwe langotchulidwa kumene lomwe lingathe kuwonjezeredwa kumagulu akale a mankhwala, monga ma covalent bonds, ma ionic bonds, coordination bonds ndi zitsulo zachitsulo.Kafukufuku wofunikira wanthawi yayitali akuwongolera pang'onopang'ono zovuta zomwe zakhalapo nthawi yayitali zaukadaulo wa batri pamlingo wosayembekezereka.Olembawo adanenanso kuti pakali pano akugwira ntchito ndi opanga mabatire akuluakulu kuti aphatikize ma pulleys awo a maselo muzinthu zenizeni za batri.

Sir Fraser Stoddart, wopambana Mphotho ya Noble Laureate Chemistry Award ya 2006 ku Northwestern University, anawonjezera kuti: “Makina amakina abwereranso koyamba pamalo osungira mphamvu.Gulu la KAIST linagwiritsa ntchito mwaluso zomangira zamakina mu ma polyrotaxanes a slip-ring and functionalized alpha-cyclodextrin spiral polyethylene glycol, zomwe zikuwonetsa kupambana kwa mabatire a lithiamu-ion pamsika, akaphatikizana ngati pulley yokhala ndi zomangira zamakina.Mankhwalawa amalowa m'malo mwa zinthu wamba ndi chomangira chimodzi chokha chamankhwala, chomwe chidzakhudza kwambiri zida ndi zida.