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Warware maki zafin baturin lithium-ion tare da tef: rage tsawon rayuwar batir dendritic

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Soláthraí Stáisiún Cumhachta Inaistrithe

Ƙungiyar binciken kimiyya ta Jami&39;ar Les ta dogara ne akan tef, haɗe da wasu fasaha na Laser na ci gaba, kuma sun haɓaka sabon nau&39;in kayan lantarki. Wannan abu zai iya shawo kan matsalolin dogon lokaci na baturin lithium-ion na yanzu kuma yana tsammanin ƙara aikin baturi. Batirin ƙarfe na Lithium yana nufin baturin da aka saba amfani da shi azaman graphite wanda ake amfani dashi azaman anode (electrodes biyu) zuwa batir lithium ɗin ƙarfe zalla.

Tun da wannan kayan yana da ƙarfin ƙarfin ƙarfi sosai, ƙarfe lithium na iya sa saurin cajin baturi ya haɓaka sosai, kuma ƙarfin yana iya kaiwa sau 10. Duk da haka, har yanzu akwai wasu gazawa a cikin batir lithium-ion, wanda ya fi damuwa ga "dendrites". A yayin aiwatar da caji, waɗannan dendrites an kafa su akan saman anode kuma suna iya haifar da gajeriyar kewayawa, gazawa ko wuta, don haka yawancin karatun baturi suna da hankali.

Ƙungiyar binciken kimiyya daga Jami&39;ar Les ta sami sabon ci gaba a wannan fanni, na farko shine tef. Tawagar ta ba da tef ɗin zuwa ga mai karɓar jan ƙarfe na yanzu wanda ya ƙunshi lithium anode kuma a bi shi da laser don dumama shi zuwa matsanancin zafin jiki na 2300 Kelvin (3680 ¡ã F ko 2026 ¡ã C), ta haka yana ba da sabon fasali mai fa&39;ida sosai. Wannan tsari yana juya tef ɗin zuwa sutura mai laushi, wanda ke da mahimmanci daga silicon, oxygen, da ƙananan graphene kayan sihiri.

Gwaje-gwaje na farko a kan fim ɗin sun nuna cewa ana iya amfani da shi azaman kariyar kariyar taron masu tarawa na yanzu, wanda zai iya sha da sakin ƙarfe na lithium, kuma ba zai ƙyale dendrites masu cutarwa ba. A cikin rufin kariyar silicon oxide da ke haifar da Laser, ƙungiyar Ƙananan Jami&39;ar na iya samun wata hanya don cin gajiyar waɗannan kyawawan abubuwan, ba sabon nauyin nauyin lithium ba. Gwaje-gwajensa sun nuna cewa baturin da sabon rufin sa ya nuna sau uku rayuwar sauran batir lithium-ion na ƙarfe na "sifili", kuma yana da ikon 70% a cikin caji 60.

Tawagar ta gabatar da cewa wannan fasaha tana da sauri da aminci, ba ta haɗa da sauran ƙarfi ba, kuma ana iya aiwatar da ita a cikin ɗaki. Saboda haka, ana fata sosai, yana tunanin yana da yuwuwar fadada sikelin.

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