Flexible lipo roj teeb

Qhov kev tshawb pom no tau ua rau lwm tus kws tshawb fawb los tsim cov hom tshiab ntawm cov roj teeb hloov pauv Li-ion uas siv cov khoom siv tsis zoo xws li elastic polymers thiab cov kua dej organic hloov cov kua hluav taws xob hluav taws xob (cov khoom uas tso cai rau ions mus ncig ntawm ob lub electrodes). Ntau lub tuam txhab tau tsim cov khoom raws li ntawm cov ntaub ntawv tshiab no, thiab tsab xov xwm no yuav tshawb txog ob hom roj teeb uas hloov pauv tau tam sim no muaj rau kev lag luam siv.

Thawj hom siv cov txheej txheem electrolyte tab sis nrog cov khoom siv polymer sib xyaw es tsis txhob siv cov khoom siv polyethylene los yog polypropylene li niaj zaus. Qhov no tso cai rau nws yuav khoov los yog zoo li tus rau hauv cov ntaub ntawv sib txawv yam tsis muaj fracturing. Piv txwv li, Samsung tsis ntev los no tau tshaj tawm tias lawv tau tsim lub roj teeb zoo li no uas tuaj yeem tswj tau nws cov duab txawm tias muab tais hauv ib nrab. Cov roj teeb no kim dua li ib txwm siv tab sis tuaj yeem siv sijhawm ntev dua vim tias tsis muaj kev tiv thaiv sab hauv los ntawm cov electrodes tuab thiab cov khoom sib cais. Txawm li cas los xij, ib qho tsis zoo yog lawv lub zog tsis tshua muaj zog: Lawv tsuas tuaj yeem khaws ntau lub zog raws li lub roj teeb Li-ion zoo sib xws thiab tsis tuaj yeem rov them sai sai.

Hom roj teeb Li-ion tam sim no siv rau hauv Wearable Sensors los saib xyuas lub cev cov cim tseem ceeb, tab sis nws kuj tuaj yeem muab tso rau hauv cov khaub ncaws ntse. Piv txwv li, Cute Circuit ua ib qho hnav ris tsho uas taug qab cov pa phem ntau ntau thiab ceeb toom cov neeg siv los ntawm LED zaub nyob tom qab thaum muaj cov qib siab hauv cov neeg hnav tam sim ntawd. Siv hom roj teeb hloov pauv no yuav ua rau nws yooj yim rau kev sib txuas cov sensors ncaj qha rau hauv cov khaub ncaws yam tsis muaj qhov ntau lossis tsis xis nyob.

Cov roj teeb lithium tau siv dav hauv cov neeg siv khoom xws li xov tooj ntawm tes thiab laptops, tab sis kev txhim kho rau nws lub peev xwm (lub zog, qhov hnyav) tuaj yeem ua rau muaj txiaj ntsig zoo xws li cov khoom siv kho mob thiab lub tsheb hluav taws xob. Txij li thaum feem ntau cov roj teeb siv lub kaw lus nruj nrog cov electrodes tso rau hauv, tau muaj kev tshawb fawb dav rau seb lub roj teeb hloov pauv puas tuaj yeem tsim tau uas yuav tso cai rau cov duab sib txawv thiab cov cuab yeej muaj zog dua.

Tam sim no muaj cov tsheb hluav taws xob muaj qhov txwv tsis pub siv vim qhov tsis tshua muaj zog ntawm cov roj teeb uas tshwm sim los ntawm kev siv cov casings nruj. Cov roj teeb uas muaj peev xwm kuj tuaj yeem hnav ntawm cov khaub ncaws lossis qhwv ib ncig ntawm qhov chaw tsis sib xws, uas qhib qhov muaj peev xwm tshiab rau kev siv thev naus laus zis. Tsis tas li ntawd, qhov yooj yim dua txhais tau tias cov roj teeb tuaj yeem khaws cia hauv qhov chaw nruj thiab ua raws li cov duab txawv txawv; qhov no tuaj yeem ua rau cov roj teeb uas muaj qhov me me dua li cov khoom siv zoo sib xws.

tau:

Lub roj teeb hloov tau yooj yim uas siv cov ntawv hlau tsis siv cov electrodes nruj tau tsim los ntawm cov kws tshawb fawb ntawm University of California, Berkeley. Tus tsim tuav cov lus cog tseg rau kev ua tau zoo dua li cov khoom siv tam sim no vim tias nws yog tsim los ntawm ntau cov ntawv nyias nyias sib sau ua ke, uas ua rau muaj zog ceev ceev thaum tseem hloov tau tag nrho. Cov kev sim yav dhau los siv lwm cov ntaub ntawv xws li graphene ua tsis tiav vim qhov tsis muaj zog ntawm cov qauv no thiab lawv tsis muaj scalability. Txawm li cas los xij, cov ntawv hlau tshiab tsim ua raws li cov qauv zoo sib xws rau cov roj teeb lithium-ion ua lag luam thiab tso cai rau cov chav no raug tsim los ntawm kev lag luam tsis muaj teeb meem.

Daim ntaub ntawv:

Cov roj teeb lipo hloov tau tuaj yeem ua rau cov khoom siv kho mob uas yooj yim dua hnav ntawm lub cev, lub tsheb fais fab nrog kev tsav tsheb ntau dua, cov cuab yeej siv tau zoo uas tsis cuam tshuam nrog kev txav mus los, thiab lwm yam kev siv uas ua kom zoo dua qhov hloov tau yooj yim.

xaus:

Kev tshawb fawb ntawm University of California Berkeley tau tsim ib lub roj teeb hloov tau tsim los ntawm cov ntawv hlau nplaum uas tsis siv cov khoom siv graphene tsis yooj yim. Qhov kev tsim no muab kev siv zog ntau dua li cov khoom siv tam sim no thaum tseem hloov tau tag nrho. Cov roj teeb uas hloov tau lipo kuj muaj peev xwm siv tau hauv tsheb hluav taws xob, kev siv tshuab thev naus laus zis, thiab lwm qhov chaw uas muaj kev hloov pauv tau zoo.