Ceramics International, volume 44, issue 6, pages 6614-6618
Structure and ionic conductivity of Li7La3Zr2−xGexO12 garnet-like solid electrolyte for all solid state lithium ion batteries
Publication type: Journal Article
Publication date: 2018-04-01
Journal:
Ceramics International
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.2
ISSN: 02728842
Materials Chemistry
Surfaces, Coatings and Films
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Process Chemistry and Technology
Abstract
Lithium garnet-like structure with the substitution of Zr 4+ sites by the same value of Ge 4+ in the Li 7 La 3 Zr 2 O 12 (LLZO) has been synthesized by a solid state reaction. The results indicate that doping Ge 4+ in the LLZO was able to reduce the sintering temperature as well as increase the density of the pellets. The prepared samples Li 7 La 3 Zr 2−x Ge x O 12 with cubic garnet like structure were characterized by X-ray diffraction and Raman spectra. The lithium ionic conductivity of all components was characterized by AC impendence at 20 °C, and the high ionic conductivity can be obtained with 4.78 × 10 −4 S/cm, while a low activation energy was only about 0.29 eV in the temperature range from 253 to 213 K. The solid electrolyte of Li 7 La 3 Zr 2−x Ge x O 12 possessed a wide electrochemical window. A full cell containing the Li 7 La 3 Zr 1.7 Ge 0.3 O 12 electrolyte was assembled to test the electrical performance, which demonstrates that the first discharge capacity can reach up to 139.1 mA g −1 at 0.1 C and the discharge capacity remains at 140.6 mA g −1 after 20 cycles. These excellent performances indicate that Ge doping LLZO could be a promising electrolyte candidate for all solid state Li ion batteries.
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- We do not take into account publications without a DOI.
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Hu S. et al. Structure and ionic conductivity of Li7La3Zr2−xGexO12 garnet-like solid electrolyte for all solid state lithium ion batteries // Ceramics International. 2018. Vol. 44. No. 6. pp. 6614-6618.
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Hu S., Li Y., Yang R., Yang Z., Wang L. Structure and ionic conductivity of Li7La3Zr2−xGexO12 garnet-like solid electrolyte for all solid state lithium ion batteries // Ceramics International. 2018. Vol. 44. No. 6. pp. 6614-6618.
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TY - JOUR
DO - 10.1016/j.ceramint.2018.01.065
UR - https://doi.org/10.1016/j.ceramint.2018.01.065
TI - Structure and ionic conductivity of Li7La3Zr2−xGexO12 garnet-like solid electrolyte for all solid state lithium ion batteries
T2 - Ceramics International
AU - Hu, Shuqiao
AU - Li, You-Fen
AU - Yang, Ru
AU - Yang, Zijian
AU - Wang, Lege
PY - 2018
DA - 2018/04/01 00:00:00
PB - Elsevier
SP - 6614-6618
IS - 6
VL - 44
SN - 0272-8842
ER -
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@article{2018_Hu,
author = {Shuqiao Hu and You-Fen Li and Ru Yang and Zijian Yang and Lege Wang},
title = {Structure and ionic conductivity of Li7La3Zr2−xGexO12 garnet-like solid electrolyte for all solid state lithium ion batteries},
journal = {Ceramics International},
year = {2018},
volume = {44},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/j.ceramint.2018.01.065},
number = {6},
pages = {6614--6618},
doi = {10.1016/j.ceramint.2018.01.065}
}
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Hu, Shuqiao, et al. “Structure and ionic conductivity of Li7La3Zr2−xGexO12 garnet-like solid electrolyte for all solid state lithium ion batteries.” Ceramics International, vol. 44, no. 6, Apr. 2018, pp. 6614-6618. https://doi.org/10.1016/j.ceramint.2018.01.065.