I-Nava: Ama-electrode ethu e-nanotube anomthamo ophindwe izikhathi ezi-3 futhi anikeza amandla aphindwe ka-10 kumaseli e-lithium-ion.
Iviki elisha nebhethri elisha. Umkhiqizi wama-supercapacitor waseFrance uNawa uthi useqalile ukwenza ama-electrode e-nanotube amasha amabhethri e-lithium-ion. Kucatshangwa ukuthi ngenxa yokuhlelwa okufanayo kwama-nanotubes, angagcina imali ephindwe kathathu kune-carbon anode.
I-Nawa's New 3D Anode: Inamandla, Ingcono, Isheshayo, Iqinile
Ama-anode e-lithium-ion yesimanje ngokuvamile enziwa kusetshenziswa i-graphite noma ikhabhoni ecushiwe (noma ngisho nekhabhoni ecushiwe evela kugraphite), njengoba ukwakheka kwayo okunezimbotshana kuvumela inani elikhulu lama-ion ukuthi ligcinwe. Kwesinye isikhathi ikhabhoni ixutshwa ne-silicon futhi izungezwe i-nano-coating ukuze kukhawulwe ukuvuvukala kwento.
Ungakwazi kakade ukuzwa mayelana nokufakwa kokusebenzisa i-silicon ehlanzekile, kusho uTesla noma i-Samsung SDI.
> Izakhi ze-Tesla ezintsha ngokuphelele: ifomethi 4680, i-silicon anode, "ubukhulu obufanele", ukukhiqizwa kochungechunge ngo-2022.
U-Nava uthi ukwakheka kwekhabhoni kuyinkimbinkimbi kakhulu ukuthi kunganyakaziswa ama-ion. Esikhundleni sekhabhoni, inkampani ifuna ukusebenzisa ama-carbon nanotubes, okubikwa ukuthi asevele asetshenziswa kuma-supercapacitor womkhiqizi. Ama-nanotubes ahambisanayo enza "ama-notches" aqondile lapho ama-ion akwazi ukuhlala ngokunethezeka. Ngokwezwi nezwi:
Kungacatshangwa ukuthi wonke ama-nanotubes ku-anode atholakala ngendlela yokuthi ama-ion ahambe ngokukhululekile phakathi kwawo kuze kube yilapho kukhethwa indawo ekahle. "Ngaphandle kokuzulazula ezakhiweni ezinezimbobo ze-anode yakudala, ama-ion azohamba ama-nanometer ambalwa esikhundleni sama-micrometer, njengoba kwenzeka ngama-electrode asendulo," kusho uNava.
Isitatimende sokugcina sibonisa ukuthi ama-nanotubes angasebenza njengama-cathodes - umsebenzi wawo uzoncika ezintweni ezizoba phezu kwawo. I-Nef ayikukhiphi ukusebenzisa i-silicon ngoba ama-carbon nanotubes azoyimboza njengekheji, ngakho-ke isakhiwo ngeke sibe nethuba lokuvuvukala. Inkinga ye-Crush ixazululiwe!
> Sebenzisa amaseli e-lithium-ion angaphandle kweshalofu ane-silicon anode. Ishaja ngokushesha kunokugcwalisa amafutha nge-hydrogen
Kungaba njani ngemingcele yamaseli asebenzisa ama-nanotubes? Phela, bangavumela:
- usebenzisa Amandla okushaja nokukhipha amandla aphindwe ka-10yini manje
- ubuhlakani amabhethri ane-energy density izikhathi ezingu-2-3 ngaphezulu kusukela kwabaphila ngesikhathi,
- inweba impilo yebhethri izikhathi ezinhlanu noma eziyishumingoba ama-nanotubes ngeke avumele izinqubo ezibhubhisa amaseli e-lithium-ion (umthombo).
Yona kanye inqubo yokuqondanisa ama-nanotubes emugqeni kufanele ibe lula kancane, okusolwa ukuthi iyindlela efanayo esetshenziselwa ukumboza izibuko namaseli e-photovoltaic nge-anti-reflective coating. I-Nawa izishaya isifuba ngokuthi ingakhula ama-nanotube ahambisanayo ngesivinini esingafika kuma-micrometer angu-100 (0,1 mm) ngomzuzu - futhi isebenzisa lobu buchwepheshe kuma-supercapacitor ayo.
Uma izimangalo zika-Nava beziyiqiniso futhi ama-electrode amasha aqhubeka nokudayiswa, lokhu kungasho kithi:
- izimoto zikagesi zilula kunezimoto ezivuthayo, kodwa ezinobubanzi obude,
- ikhono lokushaja abasebenza ngogesi ngomthamo ongu-500 ... 1 ... 000 kW, okufushane kunokugcwalisa i-refueling,
- ukwanda kwamakhilomitha asebenza ngogesi ngaphandle kwesidingo sokushintsha ibhethri kusuka kumakhilomitha ayizigidi ezingama-300-600 kuya kumakhilomitha ayizigidi eziyi-1,5-3-6,
- ngenkathi igcina usayizi wamanje webhethri: iyashajwa, yisho njalo emavikini amabili.
Uzakwethu wokuqala ka-Navah umkhiqizi webhethri waseFrance i-Saft, esebenzisana ne-PSA Group kanye ne-Renault ku-European Battery Alliance.
Isithombe sesethulo: ama-nanotubes ku-electrode ye-Nawa (c) Nawa
Lokhu kungase kube nentshisekelo kuwe:
