Enabling high-voltage polymer-based solid-state batteries through reinforcements with LiAlO2 fillers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00637272" target="_blank" >RIV/61389013:_____/25:00637272 - isvavai.cz</a>
Result on the web
<a href="https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.202405249" target="_blank" >https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.202405249</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/aenm.202405249" target="_blank" >10.1002/aenm.202405249</a>
Alternative languages
Result language
angličtina
Original language name
Enabling high-voltage polymer-based solid-state batteries through reinforcements with LiAlO2 fillers
Original language description
Poor ionic conductivity, low Li+ transference number, and limited electrochemical stability plague all-solid-state Li-metal batteries based on solid polymer electrolytes (SPEs). One strategy to overcome these hurdles is the insertion of ceramic fillers to generate composite polymer electrolytes (CPEs). These are based either on active (ion-conductive) fillers like Li7La3Zr2O12 or passive (non-conductive) fillers like Al2O3. In this work, the effect of passive Li-containing fillers is showcased, exemplified by a CPE platform of poly(trimethylene carbonate) (PTMC:LiTFSI) with LiAlO2 particles. The inclusion of such fillers shows a strikingly positive effect. The ionic conductivity is greatly improved by one order of magnitude at 20 wt% of LiAlO2 compared to the pristine PTMC SPE. Moreover, the Li+ transference number is significantly boosted and reaches values close to unity (T + = 0.97 at 20 wt% of LiAlO2), effectively rendering the material a single-ion conductor. The CPEs show outstanding cycling stability vs Li-metal, and electrochemical stability of up to 5 V vs Li+/Li. When implemented in a solid-state battery cell with LiNi0.33Mn0.33Co0.33O2 (NMC111) and Li-metal, a stable cycling performance for over 100 cycles is observed. This demonstrates the potential of using microsized and cost-effective LiAlO2 fillers in CPEs for applications in all-solid-state Li-metal batteries.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Energy Materials
ISSN
1614-6832
e-ISSN
1614-6840
Volume of the periodical
15
Issue of the periodical within the volume
26
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
2405249
UT code for WoS article
001506804700001
EID of the result in the Scopus database
2-s2.0-105001848599