Ngaba iibhetri zemo ezomeleleyo zichatshazelwa yingqele?

indlela yokubanda ezichaphazela ngayo iibhetri-slid-statekwaye yintoni eyenziwayo ngayo:

Kutheni ukubanda kungumngeni

1. I-ionic conductivity ephantsi

   • I-electrolyte eqinile (i-ceramics, i-sulfides, i-polymers) ixhomekeke kwi-lithium ion igxuma nge-crystal eqinile okanye izakhiwo ze-polymer.

   • Kwiqondo lobushushu eliphantsi, oku kutsiba kuyacotha, ngoko keukuchasana kwangaphakathi kuyandakunye nokuhanjiswa kwamandla kuyehla.

2. Iingxaki ze-interface

   • Kwibhetri yemeko eqinileyo, uqhagamshelwano phakathi kwe-electrolyte eyomeleleyo kunye nee-electrode kubalulekile.

   • Ukushisa okubandayo kunokunciphisa izinto kwimilinganiselo eyahlukeneyo, ukudalamicro-izithubakujongano → ukwenza i-ion ihambe ibe mandundu.

3. Ubunzima bokutshaja

   • Njengeebhetri zolwelo ze-lithium-ion, ukutshaja kumaqondo obushushu aphantsi kakhulu emngciphekweniukufakwa kwe-lithium(i-metallic lithium yenza kwi-anode).

   • Kwimeko eqinileyo, oku kunokuba yingozi ngakumbi kuba i-dendrites (inaliti efana nenaliti ye-lithium) inokuqhekeza i-electrolyte eqinileyo.

Xa kuthelekiswa ne-lithium-ion eqhelekileyo

• Ulwelo lwe-electrolyte lithium-ion: Ukubanda kwenza ulwelo lube ngqindilili (ngaphantsi kokuqhuba), ukunciphisa uluhlu kunye nesantya sokutshaja.

• I-lithium-ion yelizwe eliqinileyo: Ikhuseleke ngakumbi kubanda (akukho lulwelo lukhenkceza / luvuzayo), kodwaisalahlekelwa yi-conductivitykuba izinto eziqinileyo azithuthi iiyoni kakuhle kumaqondo obushushu aphantsi.

Izisombululo zangoku kuphando

1. Ii-electrolyte zeSulfidi

   • Ezinye ii-electrolyte eziqinileyo ezisekwe kwisulfide zigcina umgangatho ophezulu wokuqhuba nangaphantsi kwe-0 °C.

   • Ukuthembisa ii-EVs kwimimandla ebandayo.

2. Iipolymer-i-ceramic hybrids

   • Ukudibanisa iipolymers eziguquguqukayo kunye neengqungquthela ze-ceramic kuphucula ukuhamba kwe-ion ngexesha eliphantsi ngelixa ligcina ukhuseleko.

3. Ubunjineli bonxibelelwano

   • Izaleko zokugquma okanye izithinteli ziyaphuhliswa ukugcina uqhagamshelwano lwe-electrolyte-electrolyte luzinzile ngexesha lokutshintsha kobushushu.

4. Iinkqubo zokufudumeza kwangaphambili kwii-EVs

   • Kanye njengee-EVs zanamhlanje ezifudumeza iibhetri zolwelo ngaphambi kokutshaja, ii-EVs zexesha elizayo zinokusebenzisaulawulo lobushushuukugcina iiseli kuluhlu olufanelekileyo (15–35 °C).

Isishwankathelo:
Iibhetri ezikwimeko eqinile ngokwenene zichatshazelwa kukubanda, ikakhulu ngenxa yokuhanjiswa kwe-ion esezantsi kunye nokumelana nojongano. Zisekhuselekile kune-lithium-ion engamanzi kwezo meko, kodwaukusebenza (uluhlu, izinga lentlawulo, ukuphuma kwamandla) kunokwehla kakhulu ngaphantsi kwe-0 °C. Abaphandi basebenza ngenkuthalo kwii-electrolytes kunye noyilo oluhlala luqhuba kubanda, lujolise ekusebenziseni okuthembekileyo kwii-EV nakwimozulu yasebusika.