Cov roj teeb khov kho puas raug cuam tshuam los ntawm qhov txias?

qhov txias cuam tshuam li cas rau cov roj teeb solid-statethiab dab tsi tau ua txog nws:

Vim li cas txias yog qhov nyuaj

1. Kev coj ua ionic qis dua

   • Cov electrolytes khov kho (ceramics, sulfides, polymers) vam khom lithium ions dhia hla cov qauv siv lead ua lossis polymer khov kho.

   • Thaum kub qis, qhov kev dhia no qeeb qeeb, yog li ntawdkev tiv thaiv sab hauv nce ntxivthiab kev xa hluav taws xob poob qis.

2. Teeb meem ntawm kev sib txuas lus

   • Hauv lub roj teeb khov kho, qhov kev sib cuag ntawm cov electrolyte khov kho thiab cov electrodes yog qhov tseem ceeb heev.

   • Qhov kub txias tuaj yeem ua rau cov ntaub ntawv me dua ntawm ntau qhov sib txawv, ua raucov qhov me mentawm qhov sib txuas → ua rau cov ion ntws tsis zoo.

3. Qhov nyuaj ntawm kev them nqi

   • Ib yam li cov roj teeb lithium-ion ua kua, kev them ntawm qhov kub qis heev muaj kev pheej hmooplating lithium(cov hlau lithium uas tsim rau ntawm qhov anode).

   • Hauv cov khoom khov kho, qhov no tuaj yeem ua rau puas tsuaj ntau dua vim tias dendrites (cov lithium deposits zoo li koob) tuaj yeem tawg cov electrolyte khov kho.

Piv rau cov lithium-ion ib txwm muaj

• Cov kua electrolyte lithium-ion: Txias ua rau cov kua tuab dua (tsis muaj hluav taws xob), txo qhov ntau thiab tsawg thiab kev them ceev.

• Cov lithium-ion khov kho: Muaj kev nyab xeeb dua thaum txias (tsis muaj kua khov/xaus), tab sistseem poob qhov conductivityvim tias cov khoom khov tsis thauj cov ions zoo ntawm qhov kub qis.

Cov kev daws teeb meem tam sim no hauv kev tshawb fawb

1. Cov electrolytes sulfide

   • Qee cov electrolytes khov kho uas muaj sulfide ua rau muaj kev sib kis tau zoo txawm tias qis dua 0 ° C.

   • Muaj kev cia siab rau EVs hauv thaj chaw txias.

2. Cov polymer-ceramic hybrids

   • Kev sib xyaw ua ke ntawm cov polymers uas yoog tau nrog cov khoom siv ceramic ua rau cov ion ntws zoo dua thaum kub tsawg thaum tswj kev nyab xeeb.

3. Kev tsim kho qhov sib txuas lus

   • Cov txheej txheej lossis cov txheej buffer tab tom raug tsim los kom kev sib cuag ntawm electrode-electrolyte ruaj khov thaum lub sijhawm kub hloov pauv.

4. Cov txheej txheem ua ntej cua sov hauv EVs

   • Ib yam li cov tsheb fais fab niaj hnub no ua kom cov roj teeb ua kua sov ua ntej them, cov tsheb fais fab khov kho yav tom ntej yuav sivkev tswj hwm thermalkom cov cell nyob rau hauv lawv qhov ntau zoo tshaj plaws (15–35 ° C).

Kev Txheeb Xyuas:
Cov roj teeb khov kho yeej raug cuam tshuam los ntawm qhov txias, feem ntau yog vim muaj cov ion conductivity qis dua thiab kev tiv thaiv interface. Lawv tseem muaj kev nyab xeeb dua li cov kua lithium-ion hauv cov xwm txheej ntawd, tab siskev ua tau zoo (ntau yam, tus nqi them, lub zog tso zis) tuaj yeem poob qis dua 0 ° CCov kws tshawb nrhiav tab tom ua haujlwm rau cov electrolytes thiab cov qauv tsim uas nyob twj ywm conductive thaum txias, lub hom phiaj rau kev siv txhim khu kev qha hauv EVs txawm tias nyob rau lub caij ntuj no.