01 Waa maxay baytariyada lithium-hawada iyo baytariyada lithium-sulfur?
① Bateriga Li-hawada
Baytariga lithium-hawogu waxa uu u isticmaalaa ogsijiinta sida falcelisiyaha korantada togan iyo lithium bir ah oo ah electrode taban.Waxay leedahay cufnaanta tamareed ee sare (3500wh/kg), cufnaanta tamarta dhabta ah waxay gaari kartaa 500-1000wh/kg, taas oo aad uga sareysa nidaamka baytariyada lithium-ion ee caadiga ah.Baytariyada lithium-hawada waxay ka kooban yihiin electrodes togan, electrolytes iyo electrodes taban.Nidaamyada baytariyada aan biyaha lahayn, ogsijiin saafi ah ayaa hadda loo isticmaalaa sidii gaaska falcelinta, sidaas awgeed baytariyada lithium-hawada sidoo kale waxaa loogu yeeri karaa baytariyada lithium-oxygen.
Sannadkii 1996, Abraham et al.wuxuu si guul leh isugu keenay baytarigii ugu horreeyay ee aan biyo lahayn ee lithium-hawo ee shaybaarka.Kadibna cilmi-baarayaashu waxay bilaabeen inay fiiro gaar ah u yeeshaan fal-celinta elektiroonigga ah ee gudaha iyo habka baytariyada lithium-hawada aan biyaha lahayn;2002, Read et al.la ogaaday in waxqabadka korantada ee baytariyada lithium-hawada ay ku xidhan yihiin dareeraha korantada iyo walxaha cathode hawada;2006, Ogasawara et al.la isticmaalay Mass spectrometer, waxa markii ugu horaysay la caddeeyey in Li2O2 ay oksaydhsaydhsatay iyo ogsijiin la sii daayay intii lagu jiray dallacaadda, taas oo xaqiijisay dib-u-celinta korantada ee Li2O2.Sidaa darteed, baytariyada lithium-hawada waxay heleen dareen badan iyo horumar degdeg ah.
② baytari lithium-sulfur
Bateriga Lithium-sulfur waa nidaam batari sare oo ku salaysan falcelinta la bedeli karo ee awoodda sare ee baaruudda (1675mAh/g) iyo birta lithium (3860mAh/g), oo leh celceliska tamarta dareeraha ah ee ku saabsan 2.15V.Cufnaanta tamarta aragtida waxay gaari kartaa 2600wh/kg.Qalabkeeda cayriin waxay leeyihiin faa'iidooyinka qiimaha jaban iyo saaxiibtinimo deegaanka, sidaas darteed waxay leedahay awood horumarineed oo weyn.ikhtiraacida baytariyada lithium-sulfur waxa dib loo raadin karaa 1960-meeyadii, markii Herbert iyo Ulam ay codsadeen rukhsad batari.Nooca baytarigan lithium-sulfur wuxuu isticmaalay lithium ama alwaax lithium sida walxaha korantada taban, baaruud oo ah walxaha korantada togan oo ka kooban amiinada saturated aliphatic.ee electrolyt.Dhawr sano ka dib, baytariyada lithium-sulfur ayaa la hagaajiyay iyadoo la keenay dareerayaasha organic sida PC, DMSO, iyo DMF, iyo 2.35-2.5V baytariyada ayaa la helay.Dabayaaqadii 1980-aadkii, ether-yada ayaa la xaqiijiyay inay waxtar u leeyihiin baytariyada lithium-sulfur.Daraasadihii xigay, helitaanka ether-ku-saleysan elektrolytka, isticmaalka LiNO3 sida wax-ku-darka korantada, iyo soo-jeedinta kaarboon/sulfur isku-darka korantada togan ayaa furay kororka cilmi-baarista ee baytariyada lithium-sulfur.
02 Mabda'a shaqada ee baytariga lithium-hawada iyo baytari lithium-sulfur
① Bateriga Li-hawada
Sida laga soo xigtay gobolada kala duwan ee elektrolytka la isticmaalo, baytariyada lithium-hawada waxaa loo qaybin karaa hababka biyaha, hababka organic, biyaha-organic hababka hybrid, iyo dhammaan-state-adag baytariyada lithium-hawo.Waxaa ka mid ah, iyada oo ay ugu wacan tahay awoodda hoose ee gaarka ah ee baytariyada lithium-hawada ee isticmaalaya electrolytes-ka biyaha ku salaysan, dhibaatooyinka ilaalinta birta lithium, iyo dib u noqoshada lithium ee nidaamka, baytariyada lithium-hawada organic aan biyaha lahayn iyo dhammaan-adag-state lithium-hawo. hadda baytariyadu aad baa loo isticmaalaa.Cilmi baarisBaytariyada lithium-hawada aan biyaha lahayn ayaa markii ugu horreysay ay soo jeediyeen Abraham iyo Z.Jiang sannadkii 1996. Isla'egta falcelinta dheecaanka waxaa lagu muujiyey Jaantuska 1. Dareen-celinta dallacadu waa caksi.Electrolyt-ku inta badan waxa uu isticmaalaa elektrolytka organic ama electrolyte adag, wax soo saarkuna waxa uu u badan yahay Li2O2 , sheygu waa mid aan lagu milmi karin electrolyte-ka, waana sahlan tahay in lagu ururiyo electrode-ka hawada wanaagsan, taas oo saamaynaysa awoodda sii daynta ee baytariga lithium-hawo.
Baytariyada Lithium-hawada waxay leeyihiin faa'iidooyinka cufnaanta tamarta aadka u sareysa, saaxiibtinimo deegaanka, iyo qiimo jaban, laakiin cilmi-baaristoodu wali waa bilow, welina waxaa jira dhibaatooyin badan oo la xalliyo, sida kicinta falcelinta dhimista oksijiinta, daalacashada ogsijiinta iyo hydrophobicity ee electrodes hawada, iyo deactivation ee electrodes hawada iwm.
② baytari lithium-sulfur
Batariyada Lithium-sulfur waxay inta badan isticmaalaan baaruudka curiyaha ah ama xeryahooda baaruud ku salaysan sida walxaha korantada togan ee baytariga, iyo lithium macdan ah waxaa inta badan loo isticmaalaa electrode taban.Inta lagu jiro habka dheecaanka, lithium-ka birta ah ee ku yaala korantada taban ayaa oksaydhaysan si ay u lumiso elektarooniga oo ay dhaliso ion lithium;ka dib electrons-yada waxaa loo wareejiyaa electrode togan iyada oo loo marayo wareegga dibadda, iyo ions lithium ee la abuuray ayaa sidoo kale loo wareejiyaa korantada togan iyada oo loo marayo electrolyte si ay uga falceliso baaruud si ay u sameeyaan polysulfide.Lithium (LiPSs), ka dibna si dheeraad ah uga falcelisa si ay u dhaliso lithium sulfide si loo dhamaystiro habka dheecaanka.Inta lagu jiro habka dallacaadda, lithium ions ee LiPSs waxay ku soo noqdaan electrode taban iyada oo loo marayo electrolyte, halka electrons ay ku soo noqdaan korantada taban iyada oo loo marayo wareegga dibadda si ay u sameeyaan birta lithium ee lithium ions, iyo LiPS-yada waxaa lagu yareeyaa baaruud at electrode togan si ay u dhamaystiraan habka dallacaadda.
Habka sii daynta baytariyada lithium-sulfur inta badan waa tallaabo badan, multi-electron, falcelinta korantada isku dhafan ee wejiyada badan ee cathode sulfur, iyo LiPSs leh dhererka silsiladaha kala duwan ayaa loo beddelaa midba midka kale inta lagu jiro habka lacag-bixinta.Inta lagu jiro habka dheecaanka, falcelinta laga yaabo inay ku dhacdo korantada togan ayaa lagu muujiyay sawirka 2, falcelinta electrode xun ayaa lagu muujiyay sawirka 3.
Faa'iidooyinka baytariyada lithium-sulfur waa kuwo aad u muuqda, sida awoodda aragtiyeed oo aad u sarreeya;ma jiro wax ogsijiin ah oo ku jira maaddada, falcelinta kobcinta oksijiinta ma dhici doonto, markaa waxqabadka badbaadada ayaa wanaagsan;Khayraadka baaruudku aad buu u badan yahay, baaruudka curiyaha ahna waa raqiis;waa mid deegaan ahaan u wanaagsan oo suntu way yar tahay.Si kastaba ha ahaatee, baytariyada lithium-sulfur sidoo kale waxay leeyihiin qaar ka mid ah dhibaatooyin adag, sida saamaynta shuttle lithium polysulfide;dahaarka baaruudda curiyaha ah iyo alaabteeda dheecaanka;Dhibaatada isbeddelka mugga weyn;SEI-ga aan xasilloonayn iyo dhibaatooyinka badbaadada ee ay keento lithium anodes;ifafaale is-bixin, iwm.
Sida jiilka cusub ee nidaamka batteriga sare, baytariyada lithium-hawada iyo baytariyada lithium-sulfur waxay leeyihiin qiimeyaal awoodeed oo gaar ah oo aad u sarreeya, waxayna soo jiiteen fiiro gaar ah cilmi-baarayaasha iyo suuqa baytariyada sare.Waqtigan xaadirka ah, labadan baytari ayaa weli la kulmaya dhibaatooyin badan oo cilmi iyo farsamo.Waxay ku jiraan marxaladda hore ee cilmi baarista horumarinta batteriga.Marka lagu daro awoodda gaarka ah iyo xasilloonida walxaha cathode ee u baahan in la sii wanaajiyo, arrimaha muhiimka ah sida badbaadada batteriga sidoo kale waxay u baahan yihiin in si degdeg ah loo xalliyo.Mustaqbalka, labadan nooc ee baytariyada cusub waxay weli u baahan yihiin horumarin farsamo oo joogto ah si loo baabi'iyo cilladahooda si loo furo rajada codsiga ballaaran.
Waqtiga boostada: Abriil-07-2023