Batire yosinthika ya lithiamu-ion

Gulu la ofufuza ku yunivesite ya California lapanga luso laukadaulo la batri -- lomwe lingalole kuti mphamvu zambiri zisungidwe m'mabatire osinthika kwambiri, owonda kwambiri.

Mabatirewa akuyembekezeredwa kuti asinthe osati ukadaulo wogula komanso zida zamankhwala. Amapangidwa kuchokera ku lithiamu-ion, zomwe zimawapangitsa kukhala ofanana ndi batire yanu ya smartphone. Kusiyana kwatsopano ndikuti amatha kusinthasintha popanda kusweka. Izi zipangitsa kuti zitheke kugwiritsa ntchito zamagetsi zopindika zamtsogolo, monga mafoni ena akubwera a Samsung.

Mabatire atsopanowa sakhalanso ochepa kupanga ma dendrites, zomwe zikutanthauza kuti nkhani zachitetezo zimatha kukhala zakale. Ma dendrites ndi omwe amayambitsa moto wa batri ndi kuphulika - zomwe makampani onse aukadaulo amafuna kupewa momwe angathere. Ma dendrites amawoneka ngati mabatire akuyitanitsa ndikutulutsa. Ngati akukula mpaka kukhudza mbali zina zazitsulo za batri, ndiye kuti kagawo kakang'ono kangathe kuchitika komwe kungayambitse kuphulika kapena moto.

Asayansi sakutsimikiza kuti zitenga nthawi yayitali bwanji kuti achoke ku prototype kupita ku malonda, koma tikudziwa kuti mabatire atsopano a lithiamu-ion adzakhala otetezeka kuposa omwe tili nawo pano -- komanso okhalitsa. Zomwe anapezazo zidasindikizidwa mu nyuzipepala ya ACS Nano.

Tiyenera kukumbukira kuti asayansi a ku yunivesite ya Stanford ndi MIT adapezanso nkhaniyi zaka zingapo zapitazo, kusonyeza kuti ngakhale zinthu zolimba zimatha kusinthasintha mkati mwa batri panthawi yoyendetsa njinga mobwerezabwereza (kulipira / kutulutsa). Ngakhale zili zabwino paukadaulo wa ogula, izi ndizachisoni pazida zamankhwala popeza zambiri zimapangidwa ndi silikoni (chomwe ndi chida chosinthika kwambiri). Zipangizo zachipatala zosinthika zimafuna kuyesedwa kowonjezereka kuti zitsimikizire chitetezo.

Mabatire atsopanowa akuyembekezekanso kukhala amphamvu kwambiri kuposa mabatire a lithiamu-ion omwe alipo, ngakhale sizikudziwika ngati izi ndi zoona pazogwiritsa ntchito zonse. Zimadziwika kuti mabatire adzakhala osinthika kwambiri ndipo amatha kupindika m'mitundu ingapo osasweka. Gulu lofufuza likunena kuti gilamu imodzi yazinthu zawo zatsopano imatha kusunga mphamvu zambiri ngati batire ya AA, koma tiyenera kudikirira ndikuwona zomwe makampani amachita ndiukadaulowu tisanadziwe motsimikiza.

Kutsiliza

Ofufuza apanga mabatire a lithiamu-ion omwe ndi olimba, osinthika komanso osatheka kupanga ma dendrites. Akuyembekeza kuti mabatire awa azigwiritsidwa ntchito pama foni opindika, zida zamankhwala ndiukadaulo wina. Sizikudziwika kuti zitenga nthawi yayitali bwanji kuti mabatire awa achoke ku prototype kupita kuzinthu pamsika.

Tekinoloje yatsopanoyi idapangidwa ku UC Berkeley ndipo idasindikizidwa mu ACS Nano magazine. Zinapezekanso ndi asayansi ku yunivesite ya Stanford ndi MIT zaka zingapo zapitazo. Kafukufukuyu adawonetsa kuti ngakhale zinthu zolimba zimatha kusinthasintha mkati mwa batri panthawi yoyendetsa njinga mobwerezabwereza (kulipira / kutulutsa). Zomwe zapezazi ndizachisoni pazida zamankhwala, zomwe nthawi zambiri zimapangidwa ndi silikoni. Zida zamankhwala zosinthika zimafunika kuyezetsa zambiri zisanavomerezedwe kapena kugulitsidwa kwambiri.

Mabatire atsopanowa akuyembekezekanso kukhala amphamvu kuposa mabatire a lithiamu-ion omwe alipo. Sizikudziwika ngati izi ndi zoona pamapulogalamu onse. Gulu lofufuza likunena kuti gilamu imodzi ya zinthu zawo zatsopano imatha kusunga ngati batire ya AA, koma tiyenera kudikirira ndikuwona zomwe makampani amachita ndiukadaulowu tisanadziwe motsimikiza.