Nzvimbo inoshandiswa bhatiri re polymer lithium inokoshawo zvikuru pakuchinja hupenyu hwebhatiri. Pakati pazvo, tembiricha yemhepo chinhu chakakosha zvikuru. Tembiricha yemhepo yakaderera kana yakakwira zvakanyanya inogona kukanganisa hupenyu hwebhatiri re Li-polymer. Mukushandiswa kwebhatiri remagetsi uye mashandisirwo aro uko tembiricha inonyanya kukosha, manejimendi yekupisa yemabhatiri e Li-polymer inodiwa kuti bhatiri rishande zvakanaka.

Zvikonzero zvekuchinja kwekushisa kwemukati mebhatiri reLi-polymer

ZveMabhatiri eLi-polymer, kugadzirwa kwekupisa kwemukati kunokonzerwa nekupisa kwe reaction, kupisa kwe polarization uye kupisa kwe Joule. Chimwe chezvikonzero zvikuru zvekuwedzera kwekushisa kwebhatiri re Li-polymer ndiko kuwedzera kwekushisa kunokonzerwa nekusagadzikana kwemukati kwebhatiri. Pamusoro pezvo, nekuda kwekuiswa kwakasimba kwemuviri wesero rinopisa, nzvimbo yepakati inosungirwa kuunganidza kupisa kwakawanda, uye nzvimbo yemucheto yakaderera, izvo zvinowedzera kusawirirana kwekushisa pakati pemasero ega ega ari mubhatiri re Li-polymer.

Nzira dzekudzora tembiricha yebhatiri repolymer lithium

1. Kugadziriswa kwemukati

Sensor yekupisa ichaiswa munzvimbo inonyanya kuratidzwa, shanduko huru yekupisa munzvimbo yacho, kunyanya tembiricha yepamusoro uye yakaderera, pamwe nepakati pepolymer lithium bhatiri yekupisa inounganidza nzvimbo ine simba.

1. Mutemo wekunze

Kudzora kutonhora: Parizvino, tichifunga nezvekuoma kwechimiro chekutonga kupisa kwemabhatiri eLi-polymer, mazhinji acho anoshandisa chimiro chakareruka chenzira yekutonhodza mhepo. Uye tichifunga nezvekufanana kwekuparadza kupisa, mazhinji acho anoshandisa nzira yekufema yakafanana.

1. Kudzora tembiricha: chimiro chiri nyore chekudziisa ndechekuisa maplate ekudziya pamusoro nepazasi pebhatiri reLi-polymer kuti uise kudziyisa, pane tambo yekudziya isati yasvika uye yapera bhatiri rega rega reLi-polymer kana kushandisa firimu rekudziya rakaputirwa.Bhatiri reLi-polymeryekudziya.

Zvikonzero zvikuru zvekudzikira kwesimba remabhatiri e lithium polymer pakupisa kwakaderera

1. Kusashanda zvakanaka kwema electrolyte, kusanyorova zvakanaka uye/kana kupinda kwe diaphragm, kufamba kunonoka kwema lithium ions, kunonoka kwekufambisa charge pa electrode/electrolyte interface, nezvimwewo.

2. Pamusoro pezvo, kuvharirwa kweSEI membrane kunowedzera kana tembiricha yakaderera, zvichideredza mwero wemaion e lithium achipfuura nepakati pe electrode/electrolyte interface. Chimwe chezvikonzero zvekuwedzera kwe kuvharirwa kweSEI film ndechekuti zviri nyore kuti maion e lithium abve pa electrode isina kunaka kana tembiricha yakaderera uye zvakaoma kuiisa.

3. Pakuchaja, lithium metal inoonekwa yoita seyakabatana neelectrolyte kuti igadzire firimu idzva reSEI rinofukidza firimu rekutanga reSEI, izvo zvinowedzera impedance yebhatiri zvichiita kuti kugona kwebhatiri kudzikire.

Kupisa kwakaderera pakushanda kwemabhatiri e lithium polymer

1. tembiricha yakaderera pakushanda kwekuchaja uye kuburitsa

Sezvo tembiricha ichidzikira, avhareji yemagetsi ekuburitsa uye kugona kwekuburitsamabhatiri e lithium polymerzvinodzikira, kunyanya kana tembiricha iri -20 ℃, simba rekuburitsa bhatiri uye avhareji yemagetsi ekuburitsa anodzikira nekukurumidza.

2. Kupisa kwakaderera pakushanda kwedenderedzwa

Kugona kwebhatiri kunoora nekukurumidza pa -10℃, uye kugona kwaro kunoramba kuri 59mAh/g mushure menguva 100, nekuora kwesimba re47.8%; bhatiri rinoburitswa patembiricha yakaderera rinoedzwa patembiricha yemukamuri kuti richajiswe uye ribudiswe, uye mashandiro ekudzoreredza simba anoongororwa munguva iyoyo. Kugona kwaro kunodzoserwa kusvika pa70.8mAh/g, nekurasikirwa kwesimba re68%. Izvi zvinoratidza kuti kutenderera kwekupisa kwakaderera kwebhatiri kune simba guru pakudzoreredza simba rebhatiri.

3. Kukanganisa kwakaderera kwekushisa pakushanda kwekuchengetedza

Kuchaja bhatiri repolymer lithium inzira yekuti maion e-lithium abude kubva muelectrode yakanaka kuburikidza nekufamba kweelectrolyte mukati mechinhu chisina kunaka, maion e-lithium kuenda kupolymerization yeelectrode isina kunaka, nemaatomu matanhatu ekabhoni anotora lithium ion. Pakupisa kwakaderera, basa remakemikari rinodzikira, nepo kufamba kwemaion e-lithium kuchiwedzera kunonoka, maion e-lithium pamusoro peelectrode isina kunaka asina kuiswa muelectrode isina kunaka aderedzwa kuita lithium metal, uye kunaya kwemvura pamusoro peelectrode isina kunaka kuumba lithium dendrites, iyo inogona kubaya diaphragm zviri nyore zvichikonzera short circuit mubhatiri, izvo zvinogona kukuvadza bhatiri uye kukonzera tsaona dzekuchengetedza.

Chekupedzisira, tichiri kuda kukuyeuchidzai kuti mabhatiri e lithium polymer haafanirwe kuchajwa munguva yechando patembiricha yakaderera, nekuda kwetembiricha yakaderera, maion e lithium akaiswa pa electrode isina kunaka achaburitsa makristaro e ion, achibaya zvakananga diaphragm, izvo zvinowanzo kukonzera micro-short circuit inokanganisa hupenyu nekushanda, kuputika kwakananga kwakakomba. Saka vamwe vanhu vanoratidza kuti polymer yechando haigone kuchajwa, izvi zvinokonzerwa nechikamu nehurongwa hwekutarisira bhatiri nekuda kwekuchengetedzwa kwechigadzirwa.