Bhatiri rinoshanda zvakanyanya:Lithium-ion bhatiriinoumbwa nezvikamu zvina zvikuru: positive electrode material, negative electrode material, separator, uye electrolyte.Pakati pavo, kuparadzanisa chinhu chinokosha chemukati mukatilithium-ion mabhatiri.Kunyangwe iyo isingaite zvakananga mukuita kwe electrochemical, inoita basa rakakosha mukuita kwebhatiri.Izvo hazvingokanganisa chete kugona, kutenderera kuita uye kuchaja uye kuburitsa ikozvino density yebhatiri, asi ine chekuita nekuchengetedza uye hupenyu hwebhatiri.bhatiri.Iyo inoparadzanisa inochengetedza kushanda kwakakodzera kwebheteri uye kushanda kuburikidza nekupa ion conduction channels, kudzivirira electrolyte kusanganiswa, uye kupa mechanical support.Ion conductivity yemuparadzanisi inobata zvakananga kutengesa uye kubuda nokukurumidza uye kushanda kwebheteri.Zvirinani ion conductivity inogona kuvandudza simba rebhatiri.Mukuwedzera, iyo electrolyte isolation performance yemuparadzi inosarudza kuchengetedzwa kwebhatiri.Kunyatsoparadzaniswa kwe electrolyte pakati peakanaka uye asina kunaka maelectrode anogona kudzivirira nyaya dzekuchengetedza senge mapfupi maseketi uye kuwandisa.Iyo yekuparadzanisa inodawo kuve neyakanaka mechanical simba uye kushanduka kutarisana nekuwedzera uye kuputika kwebheteri uye kudzivirira kukanganisa kwemagetsi uye mukati mapfupi mafupi.Uye zvakare, iyo yekuparadzanisa inodawo kuchengetedza chimiro uye inoshanda kugadzikana panguva yehupenyu hwebhatirikuve nechokwadi chekushanda kwakavimbika kwenguva refu kwebhatiri.Kunyange zvazvo muparadzi asingabatanidzi zvakananga mukuita kwe electrochemical yebhatiri, ine simba rinokosha pazvinhu zvinokosha zvakadai sehuwandu hwebheteri, kushanda kwebhatiri, kutengesa uye kubuda nokukurumidza, kuchengeteka uye hupenyu hurefu. .Naizvozvo, kuvandudza uye optimization yevanoparadzanisa kwakakosha kukosha mukuvandudza uye kushandiswa kwemabhatiri e-lithium-ion.
1. Basa rinokosha revanoparadzanisa mukatilithium-ion mabhatiri
Vanoparadzanisa vanoita basa rakakosha mumabhatiri e-lithium-ion.Haisi chete chipingamupinyi chemuviri chinoparadzanisa ma electrode akanaka uye asina kunaka, asiwo ane mabasa anotevera anokosha:1.Ion transmission: Iyo inoparadzanisa inofanira kuva yakanaka ion transmission performance uye inokwanisa kubvumira lithium ions kutumira zvakasununguka pakati pemagetsi akanaka uye asina kunaka.Panguva imwecheteyo, muparadzi anofanira kunyatsovhara kutapurirana kweerekitironi kudzivirira mapfupi maseketi uye kuzviburitsa.2.Kugadziriswa kwe electrolyte: Kuparadzanisa kunoda kuve nekupikisa kwakanaka kunopinda mukati, izvo zvinogona kuchengetedza zvakakwana kugoverwa kweunifomu ye electrolyte pakati pezvakanaka uye zvisina kunaka electrode uye kudzivirira kurasikirwa kwe electrolyte uye kuchinja kwekugadzirisa.3.Mechanical simba: Iyo inoparadzanisa inoda kuva nesimba rakakwana remagetsi kuti ridzivirire kushushikana kwemagetsi zvakadai sekudzvinyirira, kuwedzera uye kudengenyeka kwebhatiri kuti ive nechokwadi chekugadzikana uye kuchengeteka kwebheteri.4.Thermal stability: Iyo inoparadzanisa inoda kuva nekugadzikana kwakanaka kwekushisa kuchengetedza kugadzikana kwemaitiro munzvimbo dzakakwirira dzekushisa uye kudzivirira kupisa kunopera uye kupisa kwekushisa.5.Flame retardancy: Iyo yekuparadzanisa inoda kuve neyakajeka murazvo wemoto, iyo inogona kunyatso kudzivirira bhatiri kubva pamoto kana kuputika mumamiriro ezvinhu asina kujairika.Kuti zvizadzise zvinodiwa pamusoro apa, vaparadzanisi vanowanzo gadzirwa nezvinhu zvepolymer, senge polypropylene (PP), polyethylene. (PE), etc. Mukuwedzera, zvigadziro zvakadai sehupamhi, porosity, uye saizi yepore yemuparadzi zvichakanganisawo kushanda kwebhatiri.Naizvozvo, mugadziriro yekugadzira mabhatiri e-lithium-ion, zvakakosha zvikuru kusarudza zvinhu zvakakodzera zvekuparadzanisa uye nekugadzirisa dhizaini yekuparadzanisa.
2. Basa guru revanoparadzanisa mulithium mabhatiri:
Mumabhatiri e-lithium-ion, muparadzi anoita basa rakakosha uye ane anotevera mabasa makuru:1.Ion conduction: Iyo inoparadzanisa inobvumira lithium ions kutakurwa pakati pezvakanaka uye zvisina kunaka electrodes.Iyo inoparadzanisa inowanzova nepamusoro ionic conductivity, iyo inogona kukurudzira kukurumidza uye kunyange kuyerera kwe lithium ions mubhatiri uye inobudirira kutengesa uye kubudiswa kwebheteri.2.Kuchengetedzwa kwebhatiri: Iyo inoparadzanisa inogona kudzivirira kusangana kwakananga uye kupfupika kwepakati pakati peiyo yakanaka uye yakaipa electrode, kudzivirira overcurrent uye kupisa mukati mebhatiri, uye kupa bhatiri kuchengetedza.3.Electrolyte isolation: Iyo inoparadzanisa inodzivirira magasi, tsvina uye zvimwe zvinhu mu electrolyte mubhatiri kubva pakusanganiswa pakati pezvakanaka uye zvisina kunaka electrode, kudzivisa zvisingakoshi zvinokonzerwa nemakemikari uye kurasikirwa, uye kuchengetedza kugadzikana uye kutenderera hupenyu hwebheteri.4.Mechanical tsigiro: Iyo inoparadzanisa inotamba chinzvimbo chekutsigira kwemakanika mubhatiri.Inogona kugadzirisa nzvimbo dzeiyo yakanaka uye yakaipa electrode uye zvimwe zvikamu zvebhatiri.Iyo inewo imwe dhigirii yekuchinja uye kuwedzera kuenderana nekuwedzera uye kuputika kwebhatiri.Vaparadzanisa vanoita basa rinokosha muion conduction, kuchengetedzwa kwebheteri, electrolyte isolation uye mechanical support in lithium-ion mabhatiri.Inogona kuve nechokwadi chekushanda kwakagadzikana uye kushanda kwebhatiri.
3. Mhando dze lithium-ion battery separators
Kune akawanda marudzi e lithium-ion bhatiri separators, akajairika anosanganisira anotevera:1.Polypropylene (PP) separator: Parizvino ndiyo inonyanya kushandiswa separator zvinhu.Polypropylene separators vane yakanakisa makemikari kuramba, zvakanaka kupisa kugadzikana uye mechanical simba, apo vane mwero ion selectivity uye conductive properties.2.Polyimide (PI) separator: Polyimide separator ine yakanyanya kugadzikana yekupisa uye kugadzikana kwekemikari, uye inogona kuchengetedza kushanda kwakadzikama munzvimbo dzekushisa kwepamusoro.Pamusana pekupikisa kwayo kwepamusoro, polyimide separators inowanzoshandiswa mumabhatiri ane simba guru uye simba guru rinodiwa.3.Polyethylene (PE) separator: Polyethylene separator ine high ion conductivity uye simba rakanaka remagetsi, uye inowanzoshandiswa mumhando dzakasiyana dzemabhatiri e-lithium-ion, akadai se supercapacitors uye lithium-sulfur mabheteri.4.Composite ceramic diaphragm: Inoumbwa ceramic diaphragm yakagadzirwa neceramic fiber yakasimbiswa polymer substrate.Iine high mechanical simba uye kupisa kupisa uye inogona kumira kupisa kwepamusoro uye kukuvara kwemuviri.5.Nanopore separator: Nanopore separator inoshandisa yakanakisa ion conductivity ye nanopore chimiro, ichisangana yakanaka mechanical simba uye kugadzikana kwemakemikari.Inotarisirwa kushandiswa mumabhatiri e-lithium-ion ane simba guru uye hupenyu hurefu hunodiwa.Izvi zvinoparadzanisa zvinhu zvakasiyana-siyana uye zvivako zvinogona kusarudzwa uye kugadziriswa maererano nemhando dzakasiyana-siyana dzebhatiri uye zvido zvekushanda.
4. Kuita zvinodiwa zve lithium-ion battery separators
Lithium-ion bhatiri separators chinhu chakakosha chine zvinotevera kuita zvinodiwa:1.High electrolyte conductivity: Muparadzi anofanira kunge ane high electrolyte conductivity kuti akurudzire ion conduction pakati pezvakanaka uye zvisina kunaka electrode kuti iwane kunyatsochaja uye kubuda kwebhatiri.2.Yakanakisa ion selectivity: Iyo yekuparadzanisa inoda kuve yakanaka ion selectivity, ichibvumira chete kutapurirana kwe lithium ions uye kudzivirira kupinda kana kuita kwezvimwe zvinhu mubhatiri.3.Kugadzikana kwakanaka kwekushisa: Kuparadzanisa kunoda kuva nekugadzikana kwakanaka kwekushisa uye kukwanisa kuchengetedza kugadzikana kwemaitiro pasi pemamiriro ezvinhu akaipisisa akadai sekushisa kwepamusoro kana kuwedzera kwepamusoro kudzivirira kupisa kwemhepo kana electrolyte evaporation nezvimwe zvinetso.4.Excellent mechanical simba uye flexibility: Iyo inoparadzanisa inoda kuva nepamusoro yemagetsi simba uye kushanduka kwekudzivirira matambudziko akadai semucheto mafupi mafupi kana kukuvara kwemukati, uye kuenderana nekuwedzera uye kuputika kwebhatiri.5.Kupikisa kwemakemikari akanaka: Kuparadzanisa kunoda kuva nemakemikari akanaka uye kukwanisa kurwisana nekuora kana kusvibiswa kweparator ne electrolytes, magasi uye tsvina mubhatiri.6.Kudzikisira kuderera uye kuderera kwepasi: Muparadzi anofanira kuva nekudzivirira kwakaderera uye kuderera kwepasi kuderedza kurasikirwa kwekudzivirira uye kurasikirwa kwe electrolyte mukati mebheteri.Zvinodiwa zvekushanda kwe lithium-ion battery separators zvakakwirira electrolyte conductivity, yakanakisa ion selectivity, yakanaka kugadzikana kwekushisa, yakanakisa michina. simba uye kuchinjika, yakanaka makemikari kuramba, kushoma kuramba uye kuderera permeability.Izvi zvinodikanwa zvekuita zvinovimbisa kuchengetedzwa kwebhatiri, hupenyu hwekutenderera uye kuwanda kwesimba.
Nguva yekutumira: Sep-15-2023