Lithium polymer ibhethri: ngokungafani ion, ukuqina, kudivayisi. Li-pol noma Li-ion: yimuphi ongcono

Kukhula isithakazelo umthengi e tech mobile amagajethi kanye ephathekayo njengoba lonke inqubo sokuphoqa abakhiqizi ukuthuthukisa imikhiqizo yabo ezihlukahlukene izinkomba. Ngakho kukhona eziningi nemingcele jikelele okuyinto umsebenzi wenziwa ngendlela efanayo. Lezi zinto zihlanganisa indlela amandla supply. Nje eminyakeni embalwa edlule abahlanganyeli emakethe asebenzayo babekwazi ukugubha inqubo ukufuduka nickel-cadmium amabhethri NiCd izakhi eyinkimbinkimbi ngaphezulu NiMH NiMH imvelaphi. Namuhla, ukuncintisana phakathi babo odala kakade amabhethri entsha. Yande lithium-ion ubuchwepheshe kwezinye izingxenye esikhundleni ngempumelelo ibhethri lithium-polymer. Ngokungafani ion in the block entsha akuyona kangako umsebenzisi ovamile, kodwa ngandlela-thile kubalulekile. Kulokhu, njengoba kwaba njalo endabeni ka-izakhi wokuncintisana NiCd futhi NiMH, esikhundleni ubuchwepheshe wawunawo amaphutha futhi abanye izinkomba uzakwabo bakhiphe elezinga eliphansi.

ishaja nebhethri Li-ion

Imodeli lokuqala ukukhiqizwa amabhethri esekelwe lithium kwaqala ukuvela ekuqaleni kwawo-1990. Nokho, njengoba electrolyte asebenzayo oko esetshenziswa ayibe kanye manganese. Ngo yesimanje lithium-ion kubalulekile kungasiko izidakamizwa njengoba ukucushwa kwe indawo yayo e block. amabhethri okunjalo yakhiwa electrode ukuthi ahlukaniswe isihlukanisi nge ikhule ezimbotsheni. I isihlukanisi mass yona, nje ligcwele electrolyte. Ngokuqondene electrode, le cathode kuyinto isisekelo babo indlela ucwecwe aluminium kanye anode zethusi. Ngaphakathi block cathode kanye anode axhunyiwe phakathi ezikhumulweni ngalendoda zamanje. Izikhungo icala athwala omuhle icala lithium ion. Lokhu kwaziswa kunenzuzo ngoba uyakwazi ukungena kalula eheleni crystal ezinye izinto, ukwakha chemical izibopho. Nokho, izimfanelo ezinhle amabhethri ezinjalo kaningi akwanele ngezinkinga zanamuhla, futhi ezaholela ukuvela izakhi Li-pol, okuyinto Ziningi izici. Ngokuvamile, kuyafaneleka ukufana lithium-ion ugesi nge yobude obugcwele helium amabhethri izimoto. Kuzo zombili lezi zimo, amabhethri zenzelwe okubhekwe usizo ngokomzimba ukusetshenziswa. Ngokwengxenye, lo mkhuba waqhubeka ukuthuthukiswa futhi izingxenye polymeric.

Iinsetjenziswa lithium polymer ibhethri

Umfutho ngcono lithium amabhethri kwaba isidingo zokunqanda ezimbili nemibi amabhethri Li-ion. Okokuqala, akuzona ephephile ukuyisebenzisa, futhi okwesibili, ngempela eqolo ngentengo. Ukuze balahle lezi yokuntula bocwepheshe lihlukaniswe electrolyte ukuqhela. Ngenxa yalokho, ukuba esikhundleni elifakwe polymer ukungena nakwamanye amazwe electrolyte isihlukanisi ukuza. Kufanele kuqashelwe ukuthi i-polymer iqina ebezisetshenziswa njengoba izidingo kagesi ifilimu plastic, a wamanje conductive. Ngo ukujiya ibhethri yesimanje Li-pol isici sifinyelela 1 mm, nakho aqede Onjiniyela ukhawule ukusetshenziswa ezihlukile nobukhulu. Kodwa into eyinhloko yokuntuleka kohlelo electrolyte ketshezi, ngaleyo ndlela asuse ingozi yomlilo. Manje kuwufanele sihlolisise umehluko kusuka amaseli lithium-ion.

Uyini umehluko omkhulu kusuka ion?

Umehluko eliyisisekelo itholakala ukwenqaba ane-helium ne electrolyte ketshezi. Ukuze uthole ukuqonda more ephelele yaleli umehluko kufanele ubheke onobuhle samanje imoto amabhethri. Isidingo ketshezi electrolyte esikhundleni kwakubangelwa, waphinda, izithakazelo nokuvikeleka. Kodwa uma esimweni amabhethri yezimoto intuthuko ukumiswa electrolyte efanayo ukungena nakwamanye amazwe elifakwe, amamodeli lithium ithole isisekelo umnyuziki okuqinile. Kuyini ngakho okuhle okuqinile-isimo lithium-polymer battery? Ngokungafani ion agent asebenzayo ngesimo ipuleti endaweni contact evimbela kumiswa lithium dendrites ngesikhathi ngebhayisikili. Vele le isici aqede kungenzeka yokuqhuma imililo amabhethri ezinjalo. Lokhu nje yinto siphathelene kokufaneleka, kodwa kukhona futhi ubuthaka amabhethri entsha.

Impilo inkonzo ibhethri lithium-polymer

Ngokwesilinganiso, laba amabhethri ukumelana mayelana 800-900 icala imijikelezo. Lesi sibalo lincane uma liqhathaniswa kunemifuziselo yesimanje, kodwa ngisho lokhu isici kungase kubhekwe njengokwelapha isici belinganisa kwalezi zinsiza. Iqiniso lokuthi amabhethri enjalo angaphansi olunzulu ukuguga ngaphandle kokubheka isimo ukuhlinzwa. Okungukuthi, ngisho noma ibhethri akusetshenziswa, umthombo izoyenqaba. Ngaphezu kwalokho, akunandaba, kuba ibhethri lithium-ion noma isici lithium-polymer. Zonke izimpahla amandla zisekelwe lithium-based, libhekene inqubo. Ukulahlekelwa okuphawulekayo umthamo kungabonwa ungakapheli nonyaka emva kokuthenga. Ngemva kweminyaka engu-2-3, abanye amabhethri ayaphela. Kodwa kuxhomeke kakhulu umenzi, njengoba kakhulu umehluko phakathi ingxenye njengoba ukusebenza kwebhethri. izinkinga ezifanayo izakhi nokungapheleli esakuzuza NiMH, owayebizwa abaneminyaka at abukhali lokushisa ekushintshashintsheni.

amaphutha

Ngaphezu nezinkinga lokuphelelwa yisikhathi okusheshayo amabhethri enjalo abadinga uhlelo olwengeziwe lokuvikela. Lokhu kungenxa yokuthi ukucindezeleka yangaphakathi ezizindeni ezihlukene kungaholela zishe. Ngakho-ke, usebenzisa sinjalo wesifunda ekhethekile evimbela abantu imali eningi futhi okweqile. Lolu hlelo luhambisana nomthwalo nezinye kahle. Chief phakathi kwabo ngumkhawulo zamanje. Kodwa, ngakolunye uhlangothi, isifunda ezengeziwe zokuzivikela wenze ephephile lithium-polymer ibhethri. Ngokungafani ion futhi unendawo ngokuya izindleko. Polymer amabhethri ishibhile, kodwa hhayi kakhulu. intengo zabo ithegi nakho kuyanda ngenxa ukwethulwa izikimu electronic ezokuphepha.

izici Operational gelled ukulungiswa

Ukuze kwandiswe conductivity kagesi e polymer ubuchwepheshe izakhi nokho wanezela gel electrolyte. A shintsho oluphelele enkulumweni akuyona into enjalo, njengoba kuphambene umqondo lobu buchwepheshe. Kodwa kumadivayisi ephathekayo ngokuvamile zisebenzisa amabhethri hybrid. engavamile wabo itholakala luvelo lokushisa. Abakhiqizi ukutusa ukusetshenziswa ibhethri enjalo imodeli ezimweni 60 ° C kuya ku-100 ° C. Le mfuneko uzimisele futhi isicelo niche ekhethekile. Sebenzisa imodeli gel-efana kungaba ezindaweni nge sezulu esishisayo, ingasaphathwa isidingo bagxuma ukwahlukanisa. Noma kunjalo, umbuzo mayelana nendlela ukukhetha ibhethri - Li-pol noma Li-ion, - hhayi ngakho-acute amabhizinisi. Lapho abanethonya elithile has a imfiva, izixazululo ngokuvamile kuhlanganiswe zisetshenziswa. izakhi Polymeric ezimweni ezinjalo ngokuvamile esetshenziselwa njengokwenza isipele.

Kwemisebenzi yoMnyango ukushaja indlela

Isilinganiso ukugcwaliswa isikhathi icala ibhethri lithium yisilinganiso sesifundo 3 amahora. Ngaphezu kwalokho, ngo-inqubo ukushaja iyunithi uhlala abandayo. Ukugcwalisa senzeka ngezigaba ezimbili. Voltage phansi ifinyelela amagugu isiqongo, futhi mode ezifana inakekelwa kuze iqoqo 70%. Labo abasele abanga-30% isivele uthayiphe zinamandla evamile. Omunye umbuzo othakazelisayo - indlela Ukushaja ibhethri lithium-polymer, uma ufuna njalo silondoloze ke ngokugcwele? Esimweni esinjalo, ulandele recharges igrafu. Le nqubo Kunconywa cishe njalo ngemva kwamahora 500 wokusebenza nge osenyameni egcwele.

izinyathelo zokuqapha

Ngo ukusebenza okufanele sisetshenziswe kuphela izici zedivayisi elihambisana ukushaja ixhunywe kwinethiwekhi nge voltage esitebeleni. Kuyadingeka ukuhlola isimo kwezixhumanisi kuya Ukukhipha ibhethri livelile. Kubalulekile ukukhumbula ukuthi, naphezu ngezinga eliphezulu ukuphepha, kusenzima nozwelo overload uhlobo ibhethri. Lithium-polymer isici awukwazi ukubekezelela izinkomba ngokweqile zamanje, Ukupholisa ngokweqile imvelo noma imithelela lokukhanda. Nokho, kuzo zonke lezi izinkomba polymer amabhlogo namanje okunokwethenjelwa ezingaphezu kuka-lithium-ion. Noma kunjalo, i-main ukuphepha isici ukuphepha okuqinile-isimo ugesi - yebo, kuncike yesondlo yobuqotho babo.

Yini ibhethri kangcono - Li-pol noma Li-ion?

Lo magazini buvezwa izimo yokusebenza amandla target. Izinzuzo main amadivayisi polymer esikufezile ngenxa abakhiqizi ngokwabo, ngubani amahhala ukusebenzisa ubuchwepheshe obusha. Ukuze umsebenzisi, umehluko obonakalayo neze. Ngokwesibonelo, umbuzo kanjani ibhethri lithium-polymer, umnikazi kuyodingeka ngonanzelelo izinga ugesi. Ngesikhathi lokushaja izakhi ezifanayo. Njengoba for ukuqina, lokhu ke ipharamitha futhi isimo kuyadida. imiphumela yokuguga ngokwezinga elikhulu ephawula amaseli polymer, kodwa umkhuba libonisa izibonelo ezahlukene. Ngokwesibonelo, kukhona Izibuyekezo kwamaseli-lithium-ion, okuyinto babe yaphela indaba yalo ngemuva konyaka isetshenziswa. A polymer kwezinye amadivaysi usebenze iminyaka 6-7.

isiphetho

Emhlabeni ibhethri kusekhona eziningi izinganekwane izahlulelo zamanga ezithinta ezicashile ezahlukene wokusebenza. Ngakolunye uhlangothi, ezinye izici abakhiqizi ibhethri ithulisiwe. Njengoba for the izinganekwane, omunye wabo ophika ibhethri lithium-polymer. Ngokungafani analog ion kungenjongo yokuba onobuhle polymer labanalokuncane ukucindezeleka yangaphakathi. Ngenxa yalesi sizathu, sessions ukushaja azikakabi ibhethri efile akuphazamisi ukusebenza electrode. Uma ukhuluma ngezilonda amaqiniso ezifihliwe abakhiqizi, omunye wabo kuziwa ukuqina. Njengoba sekushiwo, impilo yebhethri libhekene hhayi kuphela amazinga nesizotha kwenkokhiso imijikelezo, kodwa futhi ekulahlekeni ongenakugwenywa ivolumu ewusizo sebhetri.