Uqoqosho kunye nawe kunye nawe sidinga imithombo yamandla engaphezulu yogcino. Oku kuqhutywa ziindawo ezifana nothutho lombane lomntu ngamnye, amandla ohlaza, izinto zombane ezinxitywayo nokunye okuninzi. Njengayo yonke into efunwa kakhulu, iibhetri ezithembisayo ziba ngumxholo wokuqikelelwa, obangela izithembiso ezininzi, phakathi kwazo kunzima ukufumana iiperile zangempela. Ngoko amaFrentshi azitsalela phezulu. Ngaba baya kukwazi?
Inkampani yaseFransi ivelisa ii-supercapacitors kunye neebhetri iNawa Technologies iibhetri, i-carbon nanotube electrode entsha, evumela abavelisi ukuba benze iibhetri ze-traction kunye neempawu ezingcono kakhulu. Inkampani ithembisa ukunyusa amandla ebhetri ngamaxesha alishumi, umthamo wamandla athile ukuya kuthi ga kathathu, umjikelo wobomi ukuya kuthi ga kahlanu kunye nokunciphisa ixesha lokutshaja ukuya kwimizuzu endaweni yeeyure.
Ezi nkcazo zikhomba kwinguqu kwimveliso yebhetri. Kwaye oku kunomdla ngakumbi kuba umphuhlisi uthembisa ukubonelela ngeteknoloji esele yenziwe ukuveliswa kweebhetri ngokweresiphi yakhe malunga neenyanga ezili-12.
Ke amaFrentshi anika ntoni? Kwaye bacebisa ukulahla iteknoloji yendabuko yokuvelisa i-electrodes yebhetri (i-anodes kunye ne-cathodes). Namhlanje, ii-electrodes zenziwe kumxube wee powders ezichithwe emanzini okanye kwi-solvents ekhethekileyo. Umxube usetyenziswe kwi-foil uze womiswe. Le teknoloji igcwele i-heterogeneity ebalulekileyo ekubunjweni kwezinto zokusebenza ze-electrodes kwaye ekuhambeni kwexesha kukhokelela ekuthotyweni kwayo. Inkampani yaseNawa iphakamisa ukulahla i-powders kunye nezisombululo kwaye ikhulise i-carbon nanotubes kwi-foil njengesiseko (isiponji) kwizinto ezisebenzayo (i-lithium).
Itekhnoloji ecetywayo yinkampani yenza ukuba kukhule ukuya kuthi ga kwi-2 yeebhiliyoni ze-carbon nanotubes kwi-cm100 nganye yefoyile. Ngaphezu koko, iteknoloji ye-Nawa yenza ukuba kukhule ngokungqongqo ii-nanotubes ezijoliswe ngokuthe nkqo (perpendicular to the base), eyenza ibe mfutshane indlela ye-lithium ion ukusuka kwi-electrode enye ukuya kwenye ngamashumi amaxesha. Oku kuthetha ukuba izinto ze-electrode ziyakwazi ukupompa umbane ongaphezulu ngokwawo, kwaye isakhiwo esicwangcisiweyo se-nanotubes ehambelana ngokulinganayo siya kugcina indawo ngaphakathi kunye nobunzima bebhetri yonke, eya kubangela ukwanda kwamandla ebhetri.
Kwakhona, ekubeni i-electrodes ifikelela kwi-25% yeendleko zeebhetri zanamhlanje, imveliso yeNawa ithembisa ukunciphisa iindleko zabo. Ithekhnoloji yemveliso yexesha elizayo kukuba iibhubhu ziya kukhuliswa kwi-foil enye imitha ububanzi usebenzisa i-roll (rolling) indlela. Okubangela umdla kukuba, le teknoloji yaphuhliswa yinkampani ukuvelisa isizukulwana esitsha se-supercapacitors, kodwa ithembisa ukufumana isicelo kwimveliso yeebhetri ze-lithium.
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umthombo: 3dnews.ru