Dukoresha kuki kugirango tunoze uburambe.Mugukomeza gushakisha kururu rubuga, wemera gukoresha kuki.Andi makuru.
Nkuko inganda zikoresha amashanyarazi (EV) zigenda ziyongera, niko ubushakashatsi niterambere byiterambere rya batiri nziza ya lithium-ion ibaha ingufu.Ubushakashatsi no kwagura tekinoroji yo kwishyuza no gusohora byihuse, kimwe no kongera igihe cya bateri, ni imirimo yingenzi mu iterambere ryayo.
Ibintu byinshi, nka interineti ya electrode-electrolyte iranga imiterere, ikwirakwizwa rya lithium ion, hamwe na electrode porosity, birashobora gufasha gutsinda ibyo bibazo no kugera kumashanyarazi byihuse no kuramba.
Mu myaka mike ishize, ibice bibiri (2D) nanomateriali (imiterere y'urupapuro rufite uburebure bwa nanometero nkeya) byagaragaye nkibikoresho bya anode bishobora gukoreshwa na bateri ya lithium-ion.Iyi nanosheets ifite urubuga rukora cyane hamwe nuburinganire buringaniye, bigira uruhare mukwishyurwa byihuse nibiranga amagare meza.
By'umwihariko, ibice bibiri bya nanomateriali bishingiye ku nzibacyuho ya diboride (TDM) yakwegereye ibitekerezo bya siyanse.Bitewe nindege yubuki ya atome ya boron hamwe nibyuma byinshi byinzibacyuho, TMDs yerekana umuvuduko mwinshi hamwe nigihe kirekire cyo guhagarara kwa lithium ion.
Kugeza ubu, itsinda ry’ubushakashatsi riyobowe na Prof. Noriyoshi Matsumi wo mu Buyapani Ikigo cy’Ubumenyi n’ikoranabuhanga mu Buyapani (JAIST) na Prof. Kabir Jasuja wo mu Ishuri Rikuru ry’ikoranabuhanga ry’Ubuhinde (IIT) Gandhinagar barimo gukora ibishoboka byose kugira ngo barusheho gushakisha ububiko bwa TMD.
Itsinda ryakoze ubushakashatsi bwambere bwikigereranyo kububiko bwa titanium diboride (TiB2) ya nanosheets (THNS) nkibikoresho bya anode ya bateri ya lithium-ion.Muri iryo tsinda harimo Rajashekar Badam, wahoze ari Umwarimu mukuru wa JAIST, Koichi Higashimin, Impuguke mu bya tekinike ya JAIST, Akash Varma wahoze ari umunyeshuri wahawe impamyabumenyi ya JAIST, na Dr. Asha Lisa James, umunyeshuri wa IIT Gandhinagar.
Ibisobanuro birambuye ku bushakashatsi bwabo byasohotse muri ACS Applied Nano Materials kandi bizaboneka kumurongo ku ya 19 Nzeri 2022.
TGNS yabonetse hakoreshejwe okiside yifu ya TiB2 hamwe na hydrogen peroxide ikurikirwa na centrifugation na lyophilisation yumuti.
Igituma akazi kacu kagaragara ni ubunini bwuburyo bwateguwe bwo guhuza iyi nanosheets ya TiB2.Guhindura nanomaterial iyariyo yose igaragara, ubunini ni ikintu kigabanya.Uburyo bwa sintetike busaba guhagarika umutima gusa kandi ntibisaba ibikoresho bihanitse.Ibi biterwa nimyitwarire yo gusesa no kongera kwisubiramo ya TiB2, nubuvumbuzi butunguranye butuma iki gikorwa kiba ikiraro cyiza kuva muri laboratoire kugera kumurima.
Nyuma, abashakashatsi bakoze anode lithium-ion igice cyakagari bakoresheje THNS nkibikoresho bikora anode hanyuma bakora iperereza kububiko bwamafaranga ya anode ishingiye kuri THNS.
Abashakashatsi bamenye ko anode ishingiye kuri THNS ifite ubushobozi bwo gusohora 380 mAh / g ku bucucike bwa 0.025 A / g gusa.Byongeye kandi, babonye ubushobozi bwo gusohora 174mAh / g ku bucucike buri hejuru ya 1A / g, kugumana ubushobozi bwa 89.7%, nigihe cyo kwishyuza cyiminota 10 nyuma yizunguruka 1000.
Byongeye kandi, THNS ishingiye kuri lithium-ion anode irashobora kwihanganira imigezi myinshi cyane, kuva kuri 15 kugeza kuri 20 A / g, itanga amashanyarazi yihuta mumasegonda 9-14.Mugihe kinini, kugumana ubushobozi birenga 80% nyuma yizunguruka 10,000.
Ibyavuye muri ubu bushakashatsi byerekana ko 2D TiB2 nanosheets ari abakandida babereye kwishyurwa byihuse bateri ya lithium-ion.Bagaragaza kandi ibyiza byibikoresho byinshi bya nanoscale nka TiB2 kubintu byiza birimo ubushobozi bwihuse bwihuse, ububiko bwamafaranga ya pseudocapacitive nibikorwa byiza byamagare.
Ubu buryo bwihuse bwo kwishyuza burashobora kwihutisha kumenyekanisha ibinyabiziga byamashanyarazi kandi bikagabanya cyane igihe cyo gutegereza kwishyuza ibikoresho bya elegitoroniki bigendanwa.Turizera ko ibisubizo byacu bizashishikarizwa gukora ubushakashatsi muri uru rwego, amaherezo bikaba bishobora korohereza abakoresha EV, kugabanya ihumana ry’ikirere mu mijyi, no kugabanya imihangayiko ijyanye n’ubuzima bugendanwa, bityo umusaruro w’umuryango wacu ukiyongera.
Iri tsinda riteganya ko iryo koranabuhanga ridasanzwe rizakoreshwa mu binyabiziga by’amashanyarazi n’ibindi bikoresho bya elegitoroniki vuba.
Varma, A., n'abandi.(2022) Nanosheets ya Hierarchical ishingiye kuri titanium diboride nkibikoresho bya anode ya bateri ya lithium-ion.Gukoresha nanomateriali ACS.doi.org/10.1021/acsanm.2c03054.
Muri iki kiganiro cyabereye i Pittcon 2023 i Philadelphia, PA, twaganiriye na Dr. Jeffrey Dick ku bijyanye n’akazi ke muri chimie nkeya n’ibikoresho bya nanoelectrochemical.
Hano, AZoNano aganira na Drigent Acoustics ku nyungu graphene ishobora kuzana mu ikoranabuhanga rya acoustic na majwi, ndetse n’uburyo umubano w’isosiyete n’ibendera rya graphene wagize icyo ugeraho.
Muri iki kiganiro, Brian Crawford wa KLA asobanura ibintu byose bihari byo kumenya ibijyanye na nanoindentation, ibibazo byugarije umurima, nuburyo bwo kubitsinda.
Autosampler nshya ya AUTOsample-100 irahujwe na benchtop 100 MHz NMR yerekanwe.
Vistec SB3050-2 ni uburyo bugezweho bwa e-beam ya lithographie hamwe na tekinoroji ya beam ihindagurika kuburyo butandukanye bwo gukoresha mubushakashatsi niterambere, prototyping hamwe n’umusaruro muto.