Stanford: Mun rage nauyin masu tarawa na yanzu a cikin ƙwayoyin lithium-ion da kashi 80 cikin ɗari. Yawan makamashi yana ƙaruwa da kashi 16-26.

Masana kimiyya a Jami'ar Stanford da Stanford Linear Accelerator Center (SLAC) sun yanke shawarar rage ƙwayoyin lithium-ion don rage nauyinsu kuma don haka ƙara yawan kuzarin da aka adana. Don yin wannan, sun sake yin amfani da nau'i-nau'i masu ɗaukar nauyi a waje: maimakon manyan zane-zane na jan karfe ko aluminum, sun yi amfani da kunkuntar karfe na karfe, wanda aka kara da shi tare da Layer na polymer.

Mafi girman yawan makamashi a cikin Li-ion ba tare da tsadar saka hannun jari ba

Kowanne tantanin halitta Li-ion juzu'i ce da ke kunshe da Layer-cege/fitarwa Layer, electrode, electrolyte, electrode, da mai tarawa na yanzu a cikin wannan tsari. Sassan waje sune foil ɗin ƙarfe da aka yi da tagulla ko aluminum. Suna barin electrons su bar tantanin halitta su koma cikinsa.

Masana kimiyya daga Stanford da SLAC sun yanke shawarar mayar da hankali ga masu tarawa, saboda nauyin su sau da yawa yawancin dubun na kashi na nauyin haɗin gwiwa duka. Maimakon zanen tagulla, sun yi amfani da fina-finai na polymer tare da kunkuntar tagulla. Ya bayyana cewa yana yiwuwa a rage nauyin masu tarawa da kashi 80 cikin dari:

Tantanin halitta na lithium-ion cell cylindrical dogon juyi ne wanda ya ƙunshi yadudduka da yawa. Masana kimiyya daga Stanford da SLAC sun rage matakan da ke tattara tuhume-tuhumen da gudanar da su - masu tarawa na yanzu. Maimakon zanen tagulla, sun yi amfani da zanen polymer-tagulla waɗanda aka wadatar da sinadarai marasa ƙonewa (c) Yusheng Ye / Jami'ar Stanford

Wannan ba duka ba ne: ana iya ƙara mahadi na sinadarai a cikin polymer ɗin da ke hana ƙonewa, sannan ƙananan flammability na abubuwan yana tare da ƙaramin nauyi:

Stanford: Mun rage nauyin lithium-ion pantographs da kashi 80. Yawan makamashi yana ƙaruwa da kashi 16-26.

Ƙunƙarar foil ɗin jan ƙarfe da aka yi amfani da shi a cikin tantanin halitta na lithium-ion na al'ada da kuma mai tarawa wanda masu binciken Amurka suka haɓaka (c) Yusheng E / Jami'ar Stanford

Masu binciken sun ce masu tarawa da aka sake yin fa'ida na iya ƙara yawan kuzarin kuzarin sel da kashi 16-26 cikin ɗari (= 16-26 bisa ɗari ƙarin kuzari don rukunin taro ɗaya). Yana nufin haka baturi mai girman daya da yawan kuzarin zai iya zama kashi 20 cikin dari fiye da na yanzu.

An yi ƙoƙari a baya don inganta tafki, amma canza su ya haifar da illolin da ba zato ba tsammani. Kwayoyin sun zama marasa ƙarfi ko kuma ana buƙatar electrolyte fiye da [tsada]. Bambancin da masana kimiyya a Stanford suka kirkira bai bayyana yana haifar da irin waɗannan matsalolin ba.

Waɗannan haɓakawa suna cikin farkon lokacin bincike, don haka kar ku yi tsammanin za su fara kasuwa kafin 2023. Duk da haka, suna kama da alamar alkawari.

Ya kamata a kara da cewa Tesla kuma yana da ra'ayi mai ban sha'awa don tattara cajin yadudduka na karfe. Maimakon yin amfani da ƙwanƙwasa bakin ƙarfe na jan karfe tare da dukan tsayin rubutun da fitar da su a wuri ɗaya kawai (a tsakiya), nan da nan ya fito da su ta hanyar amfani da gefen yanke. Wannan yana sa cajin ya motsa ɗan ƙaramin nesa (juriya!), Kuma jan ƙarfe yana ba da ƙarin canjin zafi zuwa waje:

Stanford: Mun rage nauyin lithium-ion pantographs da kashi 80. Yawan makamashi yana ƙaruwa da kashi 16-26.