Chii chinonzi separator?
separator
Separator chinhu chakakosha chelithium-mabhatiri eion. I microporous membrane inoshandiswa kupatsanura maelectrodes akanaka neasina kunaka, uye inhengo yepolymer inoshanda ine nanoscale microporous structure, sezvakaratidzwa muFigure 7-9. Kuita kwemuparadzi kunotarisisa chimiro chebhatiri, kuramba kwemukati, uye humwe hunhu, huchikanganisa huwandu hwayo, hupenyu hwekutenderera, uye chengetedzo. Yepamusoro-inoparadzanisa inoita basa rakakosha mukunatsa kushanda kwebhatiri rose. Basa rayo guru nderokudzivirira mapfupi maseketi anokonzerwa ne electrode kusangana uku achibvumira electrolyte ions kupfuura. Kumabhatiri elithium-iyoni, sezvo electrolyte iri organic solvent system, chinoparadzanisa chinoshingirira kunyungudutsa organic chinodiwa. Kazhinji, -kusimba, mutete-firimu polyolefin porous membranes anoshandiswa.
Mashandiro e lithium-ion bhatiri separator inotemesa chimiro chebhatiri uye kusamira kwemukati, zvichikanganisa huwandu hwayo, hupenyu hwekutenderera, nekuchengetedzwa. Zvinodiwa zvehunyanzvi zvelithium-zvinoparadzanisa bhatiri reion ndezvi:
1) Insulation performance: Iyo yekuparadzanisa ndeyemagetsi conductive insulator, ichiva nechokwadi chekuzviparadzanisa kwemagetsi pakati peiyo yakanaka uye yakaipa electrode.
2) High ionic conductivity: Inofanira kuderedza kuramba kufamba kwe electrolyte ions, iine imwe pore saizi uye porosity kuti ive nechokwadi chekushomeka kwekudzivirira uye high ionic conductivity, zvichiita kuti lithium yakanaka-ion permeability.
3) Kugadzikana kwemakemikari uye electrochemical inertness: Inofanira kunge yakagadzikana zvakakwana kurwisana ne electrolyte, inogona kusvibiswa, electrode reactants, uye electrode reaction products, kudzivirira kuparara kana kuora. Sezvo electrolyte solvent iri yakasimba polar organic compound, chinoparadzanisa chinofanirwa kuzvidzivirira kune electrolyte corrosion uye kuva nemakemikari akakwana uye electrochemical kugadzikana.
4) Minima repulsion kubva ku electrolyte: Inofanirwa kuve nekunyorova kwakanaka kune electrolyte uye kukwana kwemvura kunwisa uye mwando kuchengetedza kugona.
5) Simba repamusoro remagetsi rinodiwa kudzivirira kubvarura uye deformation panguva yekugadzirisa. Zvakakwana zvemagetsi zvivakwa, zvinosanganisira puncture simba uye tensile simba, zvakakosha, uku ichideredza ukobvu.
6) Dimensional kugadzikana kwakakosha. Minimal dimensional shanduko pazasi pekunyungudika inodiwa kudzivirira mapfupi maseketi pakati peiyo yakanaka uye yakaipa electrode. Kugadzikana kwakanaka kwenzvimbo uye flatness, pamwe nekufanana kwepamusoro muukobvu uye saizi yepore, zvakakoshawo.
7) Kugadzikana kwakanaka kwekushisa uye otomatiki kudzima kuchengetedzwa kwakakosha. Mabhatiri emagetsi anoisa zvakatonyanya kudiwa pane inoparadzanisa, kazhinji achishandisa mamembrane akaumbwa.
8) Minimal thermal shrinkage inodiwa kuti ibudirire kudzivirira kutama kwezvikamu, colloids, kana zvimwe zvinonyunguduka pakati peiyo yakanaka uye yakaipa electrode. Zvikasadaro, mapfupi maseketi anogona kuitika, zvichitungamira kune bhatiri thermal runaway.
Lithium-mabheteri masisitimu nemaapplication akasiyana ane zvinodiwa zvakasiyana pazviparadzanisa.
