Ngaba iibhetri ze-lithium ion ze-polymer ziya kuqhuma?

Author: Iflowpower - Fornitur Portable Power Station

Ngokuxhomekeke kwizinto ze-electrolyte ezisetyenziswe kwiibhetri ze-lithium ion, iibhetri ze-lithium ion zahlulwe zibe ziibhetri ze-lithium ion zamanzi (i-LiquifiedLithium-Ionbattery, ebizwa ngokuba yi-LiB) kunye neebhetri ze-lithium ion ze-polymer (PLBATTERY, PLB) okanye ibhetri ye-lithium-ion yeplastiki (i-PlasticLithium) njenge-PLB , ebhekiswe kwi-LB. Izinto ze-electrode ezintle nezimbi ezisetyenziswa kwiibhetri ze-polymer lithium ion ziyafana, kwaye izinto ezintle ze-electrode zohlulwe zibe yi-lithium cobalt organte, i-lithium manganenate, i-tri-material kunye ne-lithium iron phosphate material, kunye negraphite embi kakhulu, umgaqo womsebenzi webhetri nawo ngokusisiseko uhambelana. Umahluko wabo oyintloko kukuba i-electrolyte yahlukile, kwaye ibhetri ye-lithium ion ye-lithium isebenzisa i-electrolyte engamanzi, kwaye ibhetri ye-lithium ion ye-polymer ithathelwa indawo yi-polymer electrolyte eqinile.

I-polymer ingaba "imeko eyomileyo" okanye "i-colloid" Uninzi lwe-polymer gel electrolyte yangoku. Emva koko, ibhetri ye-lithium-ion ye-polymer iqhume ngokwenene? Ibhetri ye-lithium ion ye-polymer isetyenziswa ngokubanzi kwisixhobo esiphathwayo njengelaptop, i-smartphone ngenxa yobukhulu bayo obuncinci kunye nobunzima obulula. Kwimeko yokuthwala imveliso yanamhlanje, ukhuseleko lubaluleke kakhulu, ngakumbi ngaphezu kwesiqingatha sefowuni ephathwayo, ngaphezu kwesiqingatha sezi zingasentla, okanye nangaphezulu.

Emva koko ukhulule ngokwenene ukhuseleko lwe-polymer lithium ion ibhetri? Ngaba iya kudubula? Ibhetri ye-lithium-ion ye-polymer iqhume ngokwenene? 1. Ibhetri ye-lithium ye-polymer isebenzisa i-colloidal electrolyte, eyahlukileyo kwi-Liquid States yeebhetri ze-lithium ion. I-Electrolyte, i-colloidal electrolyte ayibilisi, kwaye ayivelisi igesi eninzi, ngaloo ndlela isusa ukuqhuma kobundlobongela.

2. Iibhetri zeLithium ngokubanzi zicwangcisa iibhodi ezikhuselayo, ubungqina bokudubula, ukubonelela ngokhuseleko. Nangona kunjalo, kwiimeko ezininzi, indima ilinganiselwe.

3. Ibhetri ye-lithium ye-polymer isebenzisa i-aluminiyam-iplastiki yokupakisha ethambileyo, eyahlukileyo kumaqokobhe entsimbi yeeseli zombane zamanzi, xa sele iingozi zokhuseleko, igubu eliphezulu. 4.

I-PVDF njengesixhobo se-skeleton se-polymer lithium ion ibhetri, ukusebenza kakuhle. I-polymer lithium ion ibhetri yokulumkisa isiphaluka esifutshane: ngokubanzi isiphaluka esifutshane sangaphakathi, isiphaluka esifutshane sangaphandle, njl. Ngokuqhelekileyo eyenzekayo ngexesha lokutshaja, akukho mjikelezo omfutshane phakathi kweepleyiti zepolar zebhetri.

Nangona uninzi lweebhetri ze-lithium-ion ngoku zinezijikelezo ezimfutshane zokukhusela i-short-circuit, kunye nemigca yobungqina bokuqhuma, kodwa kwiimeko ezininzi, le ngqungquthela yokukhusela ayisebenzi kwiimeko ezahlukeneyo, umgca wobungqina bokuqhuma unokudlala indima encinci. I-Overcharged: I-polymer lithium ion ibhetri, ukuba i-voltage yokutshaja iphezulu kakhulu, ixesha lide kakhulu, ubushushu bangaphakathi buhlala bufudumala, uxinzelelo lwangaphakathi lwebhetri luyanda, kwaye uxinzelelo lufikelela kwinqanaba elithile, kubangela ukwanda, ukuphuka. Kwaye i-overcharge iya kubangela ukuguqulwa kweekhemikhali zangaphakathi zebhetri kuchaphazele ngokunzulu ubomi bebhetri.

Iimpawu zeekhemikhali ze-lithium zidla kakhulu, kulula ukutshisa, xa ibhetri ihlawuliswa kwaye ikhutshwe, ukushisa kwangaphakathi kwebhetri kuqhubeka ngokufudumeza, kwaye igesi eveliswayo ngexesha lokuqalisa inkqubo yandiswa. Ibhetri yanda, kwaye uxinzelelo lufikelela kwinqanaba elithile, eliya kugqabhuka. , Okubangela ukuvuza, umlilo, okanye ugqabhuko-dubulo.

Kwaye iibhetri ze-lithium ion ze-polymer ziya kwanda kuphela. Umonakalo: ibhetri ityunyuziwe, ibhetri ihlatywe. Ekubeni ibhetri ye-lithium-ion ye-polymer yeye-colloidal electrolyte, kunzima ukufezekisa ubungakanani bokuqhuma.

Okusingqongileyo: Kuphephe ukusebenzisa amaqondo obushushu aphezulu, iindawo ezisezantsi zobushushu. Ubushushu obuphezulu obungaphaya kwe-60 ¡ã C bunokubangela umonakalo ongenakulungiseka ngaphakathi ebhetrini, okukhokelela kwilahleko yebhetri. Ukushisa okugqithisileyo kunciphisa ukusebenza kwebhetri ye-lithium ion ye-polymer, kubangela ukuba amandla ebhetri angakwazi ukusebenzisa.

Isishwankathelo: Ibhetri ye-lithium-ion ye-polymer ingabonwa kwiimeko ezingentla, ezisekho zilungile, okanye akunjalo, ibhetri ye-lithium ye-polymer ayiyi kuqhuma, kodwa ithuba lokuqhuma kwebhetri ye-lithium ye-polymer liphantsi kakhulu malunga nebhetri ye-liquid, ngaphandle koko Ayiyi kubuzwa kwizixhobo zombane zombane. Izinto eziluncedo zePolymer Lithium ibhetri 1. Umbane ophezulu wokusebenza webhetri ye-monomer.

Umbane osebenzayo webhetri ye-monomer ungaphezulu kwe-3.6V ukuya kwi-3.8V, ephezulu kakhulu kune-1.

I-2V yombane ye-nickel-hydrogen kunye neebhetri ze-nickel-cadmium. 2. Ubuninzi bomthamo omkhulu, ubuninzi bayo bomthamo yi-1.

I-5 ukuya ku-2.5 ibhetri ye-nickel-hydrogen okanye ibhetri ye-nickel-cadmium, okanye ngaphezulu. 3.

Ukuzikhupha okuncinci, ukulahleka kwamandla kuncinci emva kwexesha elide 4. Ubomi bomjikelo omde bunokufikelela ngaphezulu kwama-500 amaxesha 5. Akukho mpembelelo yememori, akufuneki uthathe umbane oseleyo phambi kokutshaja, kulula ukuyisebenzisa.

6. Ukhuseleko olulungileyo, ibhetri ye-polymer ye-lithium kwisakhiwo, i-aluminium-iplastiki yokupakisha ethambileyo, i-casings yesinyithi eyahlukeneyo yeseli yombane yombane, emva kokuba ingozi yokhuseleko lwenzeka, ibhetri yolwelo iqhuma ngokulula, ngelixa ibhetri ye-polymer igubhu kuphela. 7.

I-Ultra-thin, ibhetri inokudityaniswa kwikhadi letyala 8. Ubunzima bokukhanya: ibhetri enepolymer electrolyte ayifuni amaqokobhe esinyithi njengepakethe yangaphandle ekhuselayo, ubunzima bebhetri yepolymer xa kuthelekiswa nomthamo olinganayo wentsimbi ethile iqokobhe le-lithium electrostatic 40%, ngaphezulu kweqokobhe le-aluminium Ibhetri ilula ngama-20% 9. Umthamo mkhulu: ibhetri ye-polymer ingaphezulu kwe-10 ukuya kwi-15% ephezulu kunomlinganiselo olinganayo wesayizi, kunye ne-aluminium iqokobhe ibhetri yi-5 ~ 10% 10.

Ukuchasana kwangaphakathi kuncinci: ukuchasana kwangaphakathi kwebhetri yepolymer Ngokuqhelekileyo, iseli yombane yombane yi-11. iimpawu zokukhupha ibhetri ekhethwayo yokusetyenziswa kwe-colloidal electrolyte, xa kuthelekiswa ne-electrolyte yolwelo, i-electrolyte ye-colloidal ineempawu zokukhupha ezigudileyo kunye neqonga eliphezulu lokukhupha. 12.

Uyilo lweplate yokukhusela lulula ngenxa yokusetyenziswa kwezinto ze-polymeric, iseli ayifumani umlilo, ayiqhubi, iseli yebhetri ngokwayo inokhuseleko olwaneleyo, ngoko ke uyilo lomgca wokukhusela webhetri yepolymer inokuqwalasela ukushiya i-PTC kunye ne-fuses, ngaloo ndlela igcina iindleko zebhetri. Ukungalungi kwebhetri ye-polymer 1. Iindleko eziphezulu zebhetri, ukucoca inkqubo ye-electrolyte kunzima.

2. Ifuna ulawulo lomgca wokhuseleko, ukutshajiswa, okanye ukugqithana ukuguqulwa kweekhemikhali zangaphakathi zebhetri, ezichaphazela kakhulu ubomi bebhetri.