California University inogadzira bhatiri nyowani diaphragm kudzivirira bhatiri kupisa kuputika nekushandisa kabhoni nanotube nets.

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Lieferant von tragbaren Kraftwerken

Iyo nano-engineer yeYunivhesiti yeCalifornia San Diego yakagadzira chinhu chakachengeteka chinodzivirira lithium simbi mabhatiri kubva kukurumidza kudziya uye kupiswa kana ipfupi-inotenderera. Liu Ping, purofesa we nano-engineering kubva kuCalifornia, San Diego, akabudisa bepa mumagazini ye "Advanced Materials", yakabudiswa mumagazini ye "Advanced Materials", vakazivisa basa ravo zvakadzama. Lithium simbi mabhatiri ane simba rakakura mukuita, asi zviri nyore kukundikana mune yazvino fomu.

Izvi zvinokonzerwa nekukura kwechigadziro chetsono chinonzi dendritic crystal, dendrimature inoumbwa pane anode mushure mokunge bhatiri yabhadharwa, uye muparadzi anogona kubayiwa, uye muparadzi anoumbwa pakati peanode uye cathode. Chipingamupinyi, kuderedza simba uye kupisa kuyerera. Kana chipingamupinyi ichi chaparadzwa uye maerekitironi okwanisa kuyerera akasununguka, anogadzira macalorie akawanda, uye zvinhu zvinenge zvisingachadzoreki, zvichikonzera kupisa kwebhatiri, kukundikana, moto, kunyange kuputika.

Masayendisiti ari kutsvaga kugadzirisa matambudziko aya mu lithium simbi mabhatiri munzira dzakasiyana siyana, uko ultrasonic kana akakosha ekudzivirira akaturikidzana anoshandisa Ultrasound kana akakosha ekudzivirira akaturikidzana kubva pakungove mikana mishoma. Chikwata chabvisa chikamu chebhatiri chinonzi diaphragm. Iyo diaphragm imhinganidzo pakati peiyo yakanaka electrode neiyo negative electrode, kuitira kuti kana bhatiri iri pfupi, simba rinounganidzwa mubhatiri (kureva, kupisa) rinoyerera Zvishoma nezvishoma.

Munyori wekutanga weiyo thesis akashamisika: "Hatiedze kudzivirira kutadza kwebhatiri. Isu tinongoita kuti bhatiri rive rakachengeteka, saka kana ikakundikana, bhatiri haigoni kubata moto kana kuputika. Lithium simbi mabhatiri Mushure mekudzokorora kubhadharisa, anode ichaonekwa mune anode.

Nokufamba kwenguva, kukura kwedendritic kwakareba zvakakwana, kupinda mukati me diaphragm, kusimudza bhiriji pakati peanode uye cathode, zvichiita kuti mukati mapfupi madiki. Kana izvi zvaitika, maerekitironi anoyerera pakati pema electrode maviri anorasika kudzora, zvichiita kuti bhatiri riite kupisa uye rimire kushanda. Chikwata chekutsvagisa muYunivhesiti yeCalifornia San Diego chakaderedzwa.

Rimwe divi rinovhara rakatetepa layer, chikamu chemagetsi conductive kabhoni nanotube network, iyo inogona kubata chero kuumbwa kwemadendrites. Kana dendritic inamira diaphragm uye ikarova kabhoni nanotube net, yemagetsi ine chiteshi, chinogona kubuda zvishoma nezvishoma, kwete zvakananga kune cathode. Gonzalez achafananidza iyo nyowani yekuparadzanisa bhatiri nenzira yemvura padhamu.

Iye akati: “Kana dhamu ratanga kuvharwa, unovhura kurashikirwa, wosiya imwe mvura ichibuda nenzira inodzoreka. Neiyi nzira, kana dhamu rave decissete, hapana mvura yakawanda inogona kukonzera mafashamo. Iyi ipfungwa yemuparadzi wedu, iyo inoderedza zvakanyanya kumhanyisa kumhanya kwechaji, kudzivirira yemagetsi "mafashamo" kune cathode.

Kana iyo dendritic inobatwa neiyo conductive layer yekuparadzanisa, bhatiri rinotanga kubuda, saka kana bhatiri iri pfupi, hapana simba rakakwana kuti rive nengozi. "Rimwe basa rekutsvagisa bhatiri rakanangana mukuvhara kupinda kwemadendrites nechinhu chakasimba chakakwana. Asi Gonzalez akati dambudziko nenzira iyi nderekuti inongowedzerwa mhedzisiro isingadzivisike.

Izvi zvinoparadzanisa zvichiri kuda zvakanaka, zvichibvumira ions kuti ipfuure kuitira kuti bhatiri rishande. Nokudaro, apo muti wacho unopedzisira wapfuura, dunhu duku richava rakaipa. Muyedzo, iyo lithium simbi bhatiri yakaiswa mune itsva separator inoratidza zviratidzo zvekutadza zvishoma nezvishoma mumakumi maviri kusvika makumi matatu.

Panguva imwecheteyo, bhatiri uye rakajairwa (uye rakakora zvishoma) chiitiko chekuparadzanisa chinongoerekana chakanganisa mune imwe kutenderera. "Muchiitiko chaicho, hauzove nekunyeverwa nezve bhatiri rava kuda kutadza. Yechipiri yechipiri inogona kunge yakanaka, ichabata moto kana kupfupika kwesekondi inotevera.

Izvi hazvifungidzike, "akadaro Gonzalez. “Asi nemuparadzi wedu, muchayeverwa pachine nguva, muchiwedzera, muchiwedzera, muchiwedzera, muchiwedzera. "Kunyangwe chinangwa chechidzidzo ichi chiri lithium simbi mabhatiri, vaongorori vanoti ichi chinoparadzanisa chinogona kushandiswawo mu lithium ions uye mamwe mabhatiri kemikari.

Chikwata chekutsvagisa chichave chakazvipira kukwenenzvera kushandiswa kwekutengeserana kweiyo yekuparadzanisa. California University San Diego yakanyorera patent yenguva pfupi yechidzidzo ichi.