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Garnet-poly(.epsilon.-caprolactone-co-trimethylene carbonate) polymer-in-ceramic composite electrolyte for all-solid-state lithium-ion batteries
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SYSNO ASEP 0541432 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Garnet-poly(.epsilon.-caprolactone-co-trimethylene carbonate) polymer-in-ceramic composite electrolyte for all-solid-state lithium-ion batteries Tvůrce(i) Nkosi, F. P. (SE)
Valvo, M. (SE)
Mindemark, J. (SE)
Dzulkurnain, N. A. (SE)
Hernández, G. (SE)
Mahun, Andrii (UMCH-V) ORCID
Abbrent, Sabina (UMCH-V) RID, ORCID
Brus, Jiří (UMCH-V) RID, ORCID
Kobera, Libor (UMCH-V) RID, ORCID
Edström, K. (SE)Zdroj.dok. ACS Applied Energy Materials. - : American Chemical Society - ISSN 2574-0962
Roč. 4, č. 3 (2021), s. 2531-2542Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova lithium metal anode ; LLZO ceramic ; polymer electrolytes Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science CEP GA18-12925S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000636714000055 EID SCOPUS 85103487545 DOI 10.1021/acsaem.0c03098 Anotace A composite electrolyte based on a garnet electrolyte (LLZO) and polyester-based co-polymer (80:20 ε-caprolactone (CL)-trimethylene carbonate, PCL-PTMC with LiTFSI salt) is prepared. Integrating the merits of both ceramic and co-polymer electrolytes is expected to address the poor ionic conductivity and high interfacial resistance in solid-state lithium-ion batteries. The composite electrolyte with 80 wt % LLZO and 20 wt % polymer (PCL-PTMC and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) at 72:28 wt %) exhibited a Li-ion conductivity of 1.31 × 10–4 S/cm and a transference number (tLi+) of 0.84 at 60 °C, notably higher than those of the pristine PCL-PTMC electrolyte. The prepared composite electrolyte also exhibited an electrochemical stability of up to 5.4 V vs Li+/Li. The interface between the composite electrolyte and a LiFePO4 (LFP) cathode was also improved by direct incorporation of the polymer electrolyte as a binder in the cathode coating. A Li/composite electrolyte/LFP solid-state cell provided a discharge capacity of ca. 140 mAh/g and suitable cycling stability at 55 °C after 40 cycles. This study clearly suggests that this type of amorphous polyester-based polymers can be applied in polymer-in-ceramic composite electrolytes for the realization of advanced all-solid-state lithium-ion batteries. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2022 Elektronická adresa https://pubs.acs.org/doi/10.1021/acsaem.0c03098
Počet záznamů: 1