Ibhethri ye-lithium-ion eguquguqukayo

Iqembu labacwaningi eNyuvesi yaseCalifornia lenze impumelelo kubuchwepheshe bebhethri -- obuzovumela inani elikhulu lamandla ukuthi ligcinwe kumabhethri aguqukayo kakhulu, azacile.

Lawa mabhethri kulindeleke ukuthi aguqule hhayi kuphela ubuchwepheshe babathengi kodwa namadivayisi wezokwelapha. Zenziwe nge-lithium-ion, okuzenza zifane nebhethri lakho le-smartphone. Umehluko omusha ukuthi angakwazi ukuguquguquka ngaphandle kokuphuka. Lokho kuzokwenza kube nokwenzeka ukusebenzisa kuma-electronics asongekayo esikhathini esizayo, njengamanye amafoni azayo akwa-Samsung.

Lawa mabhethri amasha nawo mancane amathuba okuthi akhe ama-dendrites, okusho ukuthi izinkinga zokuphepha zingagcina seziyinto yesikhathi esidlule. Ama-Dendrites yiwo abangela ukusha kwamabhethri nokuqhuma -- into zonke izinkampani zobuchwepheshe ezihlose ukuyivimbela ngangokunokwenzeka. Ama-dendrites enza njengoba amabhethri eshaja futhi ephuma. Uma zikhula zize zithinte ezinye izingxenye zebhethri zensimbi, khona-ke ukujikeleza okufushane kungase kubangele ukuqhuma noma umlilo.

Ososayensi abanaso isiqiniseko sokuthi kuzothatha isikhathi esingakanani ukusuka ku-prototype kuye emkhiqizweni wezentengiso, kodwa siyazi ukuthi lamabhethri e-lithium-ion amasha azovikeleka kakhudlwana kunalawo esinawo manje -- futhi azohlala isikhathi eside . Ukutholwa kwashicilelwa kumagazini i-ACS Nano.

Kufanele kuqashelwe ukuthi ososayensi baseStanford University naseMIT bathola lolu daba olufanayo eminyakeni embalwa edlule, okubonisa ukuthi ngisho nezinto eziqinile zingagoba ngaphakathi kwebhethri ngesikhathi sokuhamba ngebhayisikili ngokuphindaphindiwe (ukushaja / ukukhulula). Nakuba kukuhle kubuchwepheshe bomthengi, lokhu kuyishwa ngandlela thile kumishini yezokwelapha njengoba iningi lenziwe nge-silicone (okuyinto evumelana nezimo kakhulu). Imishini yezokwelapha evumelana nezimo cishe izodinga ukuhlolwa okwengeziwe ukuze kuqinisekiswe ukuphepha.

Amabhethri amasha nawo kulindeleke ukuthi abe namandla kakhulu kunamabhethri e-lithium-ion akhona, nakuba kungakacaci ukuthi lokhu kuyiqiniso yini kuzo zonke izinhlelo zokusebenza. Kuyaziwa ukuthi amabhethri azovumelana nezimo kakhulu futhi akwazi ukugoba abe amafomu amaningi ngaphandle kokuphuka. Ithimba labacwaningi lithi igremu elilodwa lento yabo entsha ingagcina amandla amaningi njengebhethri le-AA, kodwa kuzodingeka silinde futhi sibone ukuthi izinkampani zenzani ngalobu buchwepheshe ngaphambi kokuthi sazi ngokuqinisekile .

Isiphetho

Abacwaningi bakhe amabhethri e-lithium-ion aqinile, aguquguqukayo futhi okungenzeka ukuthi akhe ama-dendrites. Balindele ukuthi la mabhethri asetshenziswe kumafoni asongekayo, kumishini yezokwelapha nobunye ubuchwepheshe. Akwaziwa ukuthi kuzothatha isikhathi esingakanani ukuthi lawa mabhethri asuke ku-prototype aye emkhiqizweni emakethe.

Ubuchwepheshe obusha badalwa e-UC Berkeley futhi banyatheliswa kujenali ye-ACS Nano. Iphinde yatholwa ososayensi baseStanford University naseMIT eminyakeni embalwa edlule. Lolo cwaningo lwabonisa ukuthi ngisho nezinto eziqinile zingagoba ngaphakathi kwebhethri ngesikhathi sokuhamba ngebhayisikili okuphindaphindiwe (ukushaja/ukukhulula). Lokhu okutholakele kuyishwa ngandlela thile kumishini yezokwelapha, eyenziwa kakhulu nge-silicone. Imishini yezokwelapha eguquguqukayo izodinga ukuhlolwa okwengeziwe ngaphambi kokugunyazwa noma ukumakethwa kabanzi .

Lawa mabhethri amasha kulindeleke ukuthi abe namandla kakhulu kunamabhethri e-lithium-ion akhona. Akukacaci ukuthi lokhu kuyiqiniso yini kuzo zonke izinhlelo zokusebenza. Ithimba labacwaningi lithi igremu elilodwa lento yabo entsha ingagcina into elingana nebhethri le-AA, kodwa kuzodingeka silinde futhi sibone ukuthi izinkampani zenzani ngalobu buchwepheshe ngaphambi kokuthi sazi ngokuqinisekile .