Article: Spontaneous formation of a core–shell structure by a lithium ion conductive garnet-type oxide electrolyte for co-sintering with the cathode
Journal of materials chemistry A. 2021 Feb. 16, v. 9, no. 6
2021
Abstract: Solid-state batteries (SSBs) that use a lithium ion, conducting garnet-type oxide electrolyte, Li₇La₃Zr₂O₁₂ (LLZ), are currently gaining a lot of attention. As they are very safe and reliable, these batteries can be used in a range of wireless devices ... ...
Abstract | Solid-state batteries (SSBs) that use a lithium ion, conducting garnet-type oxide electrolyte, Li₇La₃Zr₂O₁₂ (LLZ), are currently gaining a lot of attention. As they are very safe and reliable, these batteries can be used in a range of wireless devices and sensors as part of the future internet of things. The major issue for realizing oxide-based SSBs is the chemical reaction between the cathode and electrolyte during the ceramic fabrication process. We developed an Sr-substituted LLZ that spontaneously formed a core–shell structure that suppressed the chemical reaction during high-temperature sintering. The formation of this core–shell structure was confirmed using substitution by Sr only. A model battery using Sr-substituted LLZ significantly improved the battery capacity from ∼10% to ∼85% of the theoretical capacity. |
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Keywords | Internet ; batteries ; cathodes ; ceramics ; chemical reactions ; electrolytes ; lithium |
Language | English |
Dates of publication | 2021-0216 |
Size | p. 3353-3359. |
Publishing place | The Royal Society of Chemistry |
Document type | Article |
Note | NAL-AP-2-clean |
ZDB-ID | 2702232-8 |
ISSN | 2050-7496 ; 2050-7488 |
ISSN (online) | 2050-7496 |
ISSN | 2050-7488 |
DOI | 10.1039/d0ta10215f |
Database | NAL-Catalogue (AGRICOLA) |
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