Synthesis of Quasi-Solid Electrolytes from High-Strength and Highly Oriented LLZO Porous Ceramics

Ziyao Wang; Lei Chen; Chunyang Niu; Ying Zhou; Ying Tian; Wei Yan; Wen Wang; Yu Zhou

doi:10.1021/acsaem.4c02245

Synthesis of Quasi-Solid Electrolytes from High-Strength and Highly Oriented LLZO Porous Ceramics

Ziyao Wang
, Lei Chen
, Chunyang Niu
, Ying Zhou
, Ying Tian
, Wei Yan
, Wen Wang^*
, Yu Zhou

^*Corresponding author for this work

Harbin Institute of Technology
Faculty of Computing, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Quasi-solid-state electrolytes (QSSEs) exhibit improved interfacial interactions and heightened resistance to lithium dendrite penetration. While directed ion transport can considerably reduce the ion-transport distance, fabricating highly oriented garnet-based ceramic frameworks of appropriate strength presents a challenge. Overcoming this hurdle, highly oriented porous garnet ceramics of exceptional mechanical strength have been developed via hot pressing for the first time, yielding QSSEs with high ionic conductivity (4.2 × 10^-3 S cm^-1) and favorable compatibility with lithium anodes. The LiFePO₄/Li full cells assembled with these QSSEs demonstrated a discharge capacity of 145.6 mAh g^-1 at 2 C, maintaining a Coulombic efficiency above 99% after 800 cycles with a capacity retention rate of 90.3%. This interconnected garnet framework design offers a novel direction for the development of highly oriented QSSEs.

Original language	English
Pages (from-to)	9670-9675
Number of pages	6
Journal	ACS Applied Energy Materials
Volume	7
Issue number	21
DOIs	https://doi.org/10.1021/acsaem.4c02245
State	Published - 11 Nov 2024
Externally published	Yes

Keywords

LLZO
directed lithium-ion channel
flake graphite
hot pressing
solid-state electrolytes

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10.1021/acsaem.4c02245

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@article{693b27177142485ea98fa81f3d710fa6,

title = "Synthesis of Quasi-Solid Electrolytes from High-Strength and Highly Oriented LLZO Porous Ceramics",

abstract = "Quasi-solid-state electrolytes (QSSEs) exhibit improved interfacial interactions and heightened resistance to lithium dendrite penetration. While directed ion transport can considerably reduce the ion-transport distance, fabricating highly oriented garnet-based ceramic frameworks of appropriate strength presents a challenge. Overcoming this hurdle, highly oriented porous garnet ceramics of exceptional mechanical strength have been developed via hot pressing for the first time, yielding QSSEs with high ionic conductivity (4.2 {\texttimes} 10-3 S cm-1) and favorable compatibility with lithium anodes. The LiFePO4/Li full cells assembled with these QSSEs demonstrated a discharge capacity of 145.6 mAh g-1 at 2 C, maintaining a Coulombic efficiency above 99\% after 800 cycles with a capacity retention rate of 90.3\%. This interconnected garnet framework design offers a novel direction for the development of highly oriented QSSEs.",

keywords = "LLZO, directed lithium-ion channel, flake graphite, hot pressing, solid-state electrolytes",

author = "Ziyao Wang and Lei Chen and Chunyang Niu and Ying Zhou and Ying Tian and Wei Yan and Wen Wang and Yu Zhou",

note = "Publisher Copyright: {\textcopyright} 2024 American Chemical Society.",

year = "2024",

month = nov,

day = "11",

doi = "10.1021/acsaem.4c02245",

language = "英语",

volume = "7",

pages = "9670--9675",

journal = "ACS Applied Energy Materials",

issn = "2574-0962",

publisher = "American Chemical Society",

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}

TY - JOUR

T1 - Synthesis of Quasi-Solid Electrolytes from High-Strength and Highly Oriented LLZO Porous Ceramics

AU - Wang, Ziyao

AU - Chen, Lei

AU - Niu, Chunyang

AU - Zhou, Ying

AU - Tian, Ying

AU - Yan, Wei

AU - Wang, Wen

AU - Zhou, Yu

PY - 2024/11/11

Y1 - 2024/11/11

N2 - Quasi-solid-state electrolytes (QSSEs) exhibit improved interfacial interactions and heightened resistance to lithium dendrite penetration. While directed ion transport can considerably reduce the ion-transport distance, fabricating highly oriented garnet-based ceramic frameworks of appropriate strength presents a challenge. Overcoming this hurdle, highly oriented porous garnet ceramics of exceptional mechanical strength have been developed via hot pressing for the first time, yielding QSSEs with high ionic conductivity (4.2 × 10-3 S cm-1) and favorable compatibility with lithium anodes. The LiFePO4/Li full cells assembled with these QSSEs demonstrated a discharge capacity of 145.6 mAh g-1 at 2 C, maintaining a Coulombic efficiency above 99% after 800 cycles with a capacity retention rate of 90.3%. This interconnected garnet framework design offers a novel direction for the development of highly oriented QSSEs.

AB - Quasi-solid-state electrolytes (QSSEs) exhibit improved interfacial interactions and heightened resistance to lithium dendrite penetration. While directed ion transport can considerably reduce the ion-transport distance, fabricating highly oriented garnet-based ceramic frameworks of appropriate strength presents a challenge. Overcoming this hurdle, highly oriented porous garnet ceramics of exceptional mechanical strength have been developed via hot pressing for the first time, yielding QSSEs with high ionic conductivity (4.2 × 10-3 S cm-1) and favorable compatibility with lithium anodes. The LiFePO4/Li full cells assembled with these QSSEs demonstrated a discharge capacity of 145.6 mAh g-1 at 2 C, maintaining a Coulombic efficiency above 99% after 800 cycles with a capacity retention rate of 90.3%. This interconnected garnet framework design offers a novel direction for the development of highly oriented QSSEs.

KW - LLZO

KW - directed lithium-ion channel

KW - flake graphite

KW - hot pressing

KW - solid-state electrolytes

UR - https://www.scopus.com/pages/publications/85207293668

U2 - 10.1021/acsaem.4c02245

DO - 10.1021/acsaem.4c02245

M3 - 文章

AN - SCOPUS:85207293668

SN - 2574-0962

VL - 7

SP - 9670

EP - 9675

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 21

ER -

Synthesis of Quasi-Solid Electrolytes from High-Strength and Highly Oriented LLZO Porous Ceramics

Abstract

Keywords

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