Kodi mabatire olimba amakhudzidwa ndi kuzizira?

kuzizira kumakhudza bwanji mabatire olimbandi zomwe zikuchitika pa izi:

Chifukwa chiyani kuzizira kumakhala kovuta

1. Lower ionic conductivity

   • Ma electrolyte olimba (ma ceramics, sulfides, ma polima) amadalira ma lithiamu ayoni akudumphira kudzera m'makristalo olimba kapena ma polima.

   • Pa otsika kutentha, kadumphidwe kubweza, koterokukana kwamkati kumawonjezekandi kutsika kwa magetsi.

2. Mavuto a Interface

   • Mu batire yolimba, kulumikizana pakati pa ma electrolyte olimba ndi maelekitirodi ndikofunikira.

   • Kutentha kozizira kumatha kufooketsa zida pamitengo yosiyana, kupangamipata yaying'onopamalo olumikizirana → kupangitsa kuti ayoni aziyenda kwambiri.

3. Kulipira kovuta

   • Monga mabatire a lithiamu-ion amadzimadzi, kulipira paziwopsezo zotsika kwambirilithiamu plating(zitsulo za lithiamu zimapanga pa anode).

   • Pamalo olimba, izi zitha kukhala zowononga kwambiri popeza ma dendrites (ma depositi a singano ngati singano) amatha kuphwanya ma electrolyte olimba.

Poyerekeza ndi lithiamu-ion wamba

• Liquid electrolyte lithiamu-ion: Kuzizira kumapangitsa kuti madziwo azikhala okhuthala (ocheperako), kuchepetsa kusiyanasiyana komanso kuthamanga.

• Lifiyamu-ion yokhazikika: Otetezeka pozizira (palibe madzi oundana / akutha), komaamatayabe madutsidwechifukwa zolimba sizimayendetsa ma ayoni bwino pakatentha kwambiri.

Mayankho apano mu kafukufuku

1. Ma electrolyte a sulfide

   • Ma electrolyte olimba opangidwa ndi sulfide amakhalabe otsika kwambiri ngakhale pansi pa 0 °C.

   • Kulonjeza kwa ma EV m'madera ozizira.

2. Ma hybrids a polymer-ceramic

   • Kuphatikiza ma polima osinthika ndi ma ceramic particles kumapangitsa kuti ma ion aziyenda pakanthawi kochepa ndikusunga chitetezo.

3. Interface engineering

   • Zopaka kapena zigawo zotchingira zikupangidwa kuti ma electrode-electrolyte asasunthike panthawi yakusintha kwa kutentha.

4. Makina opangira kutentha mu EVs

   • Monga momwe ma EV amasiku ano amatenthetsera mabatire amadzimadzi musanapereke ndalama, ma EV amtsogolo atha kugwiritsa ntchitokasamalidwe ka kutenthakusunga maselo m'malo oyenera (15-35 ° C).

Chidule:
Mabatire olimba amakhudzidwadi ndi kuzizira, makamaka chifukwa cha kuchepa kwa ma ion conductivity komanso kukana mawonekedwe. Iwo akadali otetezeka kuposa madzi lithiamu-ion mu zinthu zimenezo, komamagwiridwe antchito (kusiyanasiyana, kuchuluka kwa mtengo, kutulutsa mphamvu) kumatha kutsika kwambiri pansi pa 0 °C. Ochita kafukufuku akugwira ntchito molimbika pa ma electrolyte ndi mapangidwe omwe amakhala abwino pakazizira, kutanthauza kuti agwiritsidwe ntchito modalirika mu ma EV ngakhale nyengo yozizira.