1. Umngcipheko webhetri ye-lithium ion
Ibhetri ye-lithium ion ngumthombo wamandla ekhemikhali onokuba yingozi ngenxa yeempawu zayo zekhemikhali kunye nokwakheka kwenkqubo.
(1) Umsebenzi ophezulu weekhemikhali
I-Lithium lelona qela I element kwixesha lesibini letafile ye periodic, eneempawu zekhemikhali ezisebenzayo kakhulu.
(2) Ukuxinana kwamandla aphezulu
Iibhetri ze-ion ze-Lithium zinamandla athile aphezulu kakhulu (≥ 140 Wh/kg), ephindaphinda kaninzi kune-nickel cadmium, i-nickel hydrogen kunye nezinye iibhetri zesibini.Ukuba ukusabela kokubaleka kwe-thermal kwenzeka, ubushushu obuphezulu buya kukhutshwa, okuya kukhokelela ngokulula ekuziphatheni okungakhuselekanga.
(3) Yamkela inkqubo ye-electrolyte ephilayo
I-solvent ye-organic ye-organic electrolyte system yi-hydrocarbon, ene-voltage ephantsi yokubola, i-oxidation elula kunye ne-solvent evuthayo;Kwimeko yokuvuza, ibhetri iya kubamba umlilo, ide itshise kwaye iqhume.
(4) Ukubakho okuphezulu kweziphumo ebezingalindelekanga
Kwinkqubo yokusetyenziswa okuqhelekileyo kwebhetri ye-lithium ion, ukuphendulwa kweekhemikhali ezilungileyo zokuguqulwa okulinganayo phakathi kwamandla ombane kunye namandla ekhemikhali kwenzeka ngaphakathi kwayo.Nangona kunjalo, phantsi kweemeko ezithile, ezifana nokutshaja, ukukhupha ngaphezulu okanye ngaphezulu kokusebenza ngoku, kulula ukubangela ukusabela kwecala lekhemikhali ngaphakathi kwebhetri;Xa ukusabela kwecala kukhula, kuya kuchaphazela kakhulu ukusebenza kunye nobomi benkonzo yebhetri, kwaye kunokuvelisa isixa esikhulu segesi, okuya kubangela ukuqhuma kunye nomlilo emva kokuba uxinzelelo ngaphakathi kwebhetri lwanda ngokukhawuleza, olukhokelela kwiingxaki zokhuseleko.
(5) Ubume bezinto ze-electrode azinzanga
Ukuphendulwa kwe-overcharge ye-lithium ion ibhetri iya kutshintsha isakhiwo sezinto ze-cathode kwaye yenza izinto zibe nefuthe elinamandla le-oxidation, ukwenzela ukuba i-solvent kwi-electrolyte ibe ne-oxidation enamandla;Kwaye esi siphumo asinakuguqulwa.Ukuba ubushushu obubangelwa ukusabela buqokelela, kuya kubakho umngcipheko wokubangela ukubaleka kwe-thermal.
2. Uhlalutyo lweengxaki zokhuseleko lweemveliso zebhetri ye-lithium ion
Emva kweminyaka engama-30 yophuhliso lwamashishini, iimveliso zebhetri ze-lithium-ion zenze inkqubela phambili kwitekhnoloji yokhuseleko, zilawula ngokufanelekileyo ukuvela kweempendulo zecala kwibhetri, kwaye ziqinisekisa ukhuseleko lwebhetri.Nangona kunjalo, njengoko iibhetri ze-lithium ion zisetyenziswa ngokubanzi nangakumbi kwaye ubuninzi bamandla abo buphezulu nangaphezulu, kusekho iziganeko ezininzi ezifana nokulimala kokuqhuma okanye ukukhunjuzwa kwemveliso ngenxa yeengozi ezinokubakho zokhuseleko kwiminyaka yamuva.Siphetha ngelithi ezona zizathu ziphambili zeengxaki zokhuseleko lweemveliso zebhetri ye-lithium-ion zimi ngolu hlobo lulandelayo:
(1) Ingxaki yezinto ezingundoqo
Izinto ezisetyenziselwa umbane wombane ziquka izinto ezisebenzayo ezisebenzayo, izinto ezingasebenziyo ezingasebenziyo, i-diaphragms, i-electrolytes kunye neegobolondo, njl.Xa ukhetha izinto ezisebenzayo kunye nezingalunganga kunye nezixhobo ze-diaphragm, umenzi akazange aqhube uvavanyo oluthile kwiimpawu kunye nokuhambelana kwezinto ezibonakalayo, okubangelwa ukusilela kokuzalwa ekukhuselekeni kweseli.
(2) Iingxaki zenkqubo yemveliso
Izinto ekrwada yeseli azivavanywanga ngokungqongqo, kunye nokusingqongileyo imveliso ihlwempuzekileyo, nto leyo ekhokelela ukungcola kwimveliso, nto leyo eyingozi kuphela umthamo ibhetri, kodwa inempembelelo enkulu kukhuseleko ibhetri;Ukongezelela, ukuba amanzi amaninzi axutywe kwi-electrolyte, ukuphendulwa kwecala kunokwenzeka kwaye kwandise uxinzelelo lwangaphakathi lwebhetri, oluya kuchaphazela ukhuseleko;Ngenxa yokuthintelwa kwenqanaba lenkqubo yokuvelisa, ngexesha lokuveliswa kondoqo wombane, imveliso ayinakufezekisa ukuhambelana kakuhle, njengokungafihli kakuhle kwe-matrix ye-electrode, ukuwa kwezinto ezisebenzayo ze-electrode, ukuxutywa kobunye ukungcola. izinto ezisebenzayo, i-welding engakhuselekanga ye-electrode lug, ukushisa kwe-welding engazinzanga, i-burrs ekupheleni kweqhekeza le-electrode, kunye nokungabikho kokusetyenziswa kweteyiphu yokukhusela kwiindawo eziphambili, ezinokuchaphazela kakubi ukhuseleko lwesiseko sombane. .
(3) Isiphene soyilo lwesiseko sombane sinciphisa ukusebenza kokhuseleko
Ngokumalunga noyilo lwesakhiwo, amanqaku amaninzi abalulekileyo anempembelelo ekukhuseleni awazange athathelwe ingqalelo ngumenzi.Ngokomzekelo, akukho tape yokukhusela kwiindawo eziphambili, akukho mda okanye umda onganelanga ushiywe kuyilo lwe-diaphragm, uyilo lobungakanani bomthamo wee-electrode ezilungileyo kunye nezingalunganga akukho ngqiqweni, uyilo lomlinganiselo wendawo ye-positive kunye ne-negative esebenzayo. Izinto azinangqiqo, kwaye uyilo lobude be-lug alunangqiqo, olunokuthi lubeke iingozi ezifihliweyo kukhuseleko lwebhetri.Ukongezelela, kwinkqubo yokuvelisa iseli, abanye abavelisi beeseli bazama ukugcina kunye nokucinezela izinto eziluhlaza ukuze kugcinwe iindleko kunye nokuphucula ukusebenza, njengokunciphisa indawo ye-diaphragm, ukunciphisa i-foil yobhedu, i-aluminium foil, kunye nokungasebenzisi i-diaphragm. ivalve yokunciphisa uxinzelelo okanye iteyiphu yokukhusela, eya kunciphisa ukhuseleko lwebhetri.
(4) Ukuxinana kwamandla aphezulu kakhulu
Okwangoku, imarike ifuna iimveliso zebhetri ezinomthamo ophezulu.Ukuze kwandiswe ukukhuphisana kweemveliso, abavelisi bayaqhubeka nokuphucula umthamo wamandla athile ebhetri ye-lithium ion, eyandisa kakhulu umngcipheko weebhetri.
Ixesha lokuposa: Nov-06-2022