A novel and safety lithium thermal battery electrolyte - Li7La3Zr2O12 prepared by solid state method

Fei Cao; Jiachao Shi; Haiping Liu; Shanshan Qiang; Lixin Cao; Sifu Bi; Wenjun Liu

doi:10.1016/j.ssi.2018.09.021

A novel and safety lithium thermal battery electrolyte - Li₇La₃Zr₂O₁₂ prepared by solid state method

Fei Cao
, Jiachao Shi
, Haiping Liu^*
, Shanshan Qiang
, Lixin Cao
, Sifu Bi
, Wenjun Liu

^*Corresponding author for this work

School of Marine Science and Technology, Harbin Institute of Technology Weihai
Shanghai Institute of Space Power Sources
Harbin Institute of Technology

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

18 Scopus citations

Abstract

In this paper, a garnet-related type Li₇La₃Zr₂O₁₂ material is synthesized by using a solid-state method. Then, the obtained Li₇La₃Zr₂O₁₂ is investigated by X-ray diffraction method and field emission scanning electron microscopy. The prepared Li₇La₃Zr₂O₁₂ material is first used as the lithium thermal electrolyte for its good ionic conductivity and safety at 550 °C. Compared with LiCl-LiBr-LiF molten salt electrolyte, the lithium thermal batteries using Li₇La₃Zr₂O₁₂ material as the electrolyte have longer discharge time and higher melting point, resulting an increasing of the utilization rate of active substance by 20% at 550 °C under 80 mA/cm². In addition, there was no Li₇La₃Zr₂O₁₂ electrolyte overflowing during this discharge process, and which is beneficial to prolong the lithium thermal battery life and improve the lithium battery safety.

Original language	English
Pages (from-to)	131-135
Number of pages	5
Journal	Solid State Ionics
Volume	326
DOIs	https://doi.org/10.1016/j.ssi.2018.09.021
State	Published - 15 Nov 2018
Externally published	Yes

Keywords

LiLaZrO
Lithium thermal battery
Safety
Solid electrolyte

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10.1016/j.ssi.2018.09.021

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@article{79273fa6ac6f41a5854f442bec40a1b7,

title = "A novel and safety lithium thermal battery electrolyte - Li7La3Zr2O12 prepared by solid state method",

abstract = "In this paper, a garnet-related type Li7La3Zr2O12 material is synthesized by using a solid-state method. Then, the obtained Li7La3Zr2O12 is investigated by X-ray diffraction method and field emission scanning electron microscopy. The prepared Li7La3Zr2O12 material is first used as the lithium thermal electrolyte for its good ionic conductivity and safety at 550 °C. Compared with LiCl-LiBr-LiF molten salt electrolyte, the lithium thermal batteries using Li7La3Zr2O12 material as the electrolyte have longer discharge time and higher melting point, resulting an increasing of the utilization rate of active substance by 20\% at 550 °C under 80 mA/cm2. In addition, there was no Li7La3Zr2O12 electrolyte overflowing during this discharge process, and which is beneficial to prolong the lithium thermal battery life and improve the lithium battery safety.",

keywords = "LiLaZrO, Lithium thermal battery, Safety, Solid electrolyte",

author = "Fei Cao and Jiachao Shi and Haiping Liu and Shanshan Qiang and Lixin Cao and Sifu Bi and Wenjun Liu",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = nov,

day = "15",

doi = "10.1016/j.ssi.2018.09.021",

language = "英语",

volume = "326",

pages = "131--135",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A novel and safety lithium thermal battery electrolyte - Li7La3Zr2O12 prepared by solid state method

AU - Cao, Fei

AU - Shi, Jiachao

AU - Liu, Haiping

AU - Qiang, Shanshan

AU - Cao, Lixin

AU - Bi, Sifu

AU - Liu, Wenjun

PY - 2018/11/15

Y1 - 2018/11/15

N2 - In this paper, a garnet-related type Li7La3Zr2O12 material is synthesized by using a solid-state method. Then, the obtained Li7La3Zr2O12 is investigated by X-ray diffraction method and field emission scanning electron microscopy. The prepared Li7La3Zr2O12 material is first used as the lithium thermal electrolyte for its good ionic conductivity and safety at 550 °C. Compared with LiCl-LiBr-LiF molten salt electrolyte, the lithium thermal batteries using Li7La3Zr2O12 material as the electrolyte have longer discharge time and higher melting point, resulting an increasing of the utilization rate of active substance by 20% at 550 °C under 80 mA/cm2. In addition, there was no Li7La3Zr2O12 electrolyte overflowing during this discharge process, and which is beneficial to prolong the lithium thermal battery life and improve the lithium battery safety.

AB - In this paper, a garnet-related type Li7La3Zr2O12 material is synthesized by using a solid-state method. Then, the obtained Li7La3Zr2O12 is investigated by X-ray diffraction method and field emission scanning electron microscopy. The prepared Li7La3Zr2O12 material is first used as the lithium thermal electrolyte for its good ionic conductivity and safety at 550 °C. Compared with LiCl-LiBr-LiF molten salt electrolyte, the lithium thermal batteries using Li7La3Zr2O12 material as the electrolyte have longer discharge time and higher melting point, resulting an increasing of the utilization rate of active substance by 20% at 550 °C under 80 mA/cm2. In addition, there was no Li7La3Zr2O12 electrolyte overflowing during this discharge process, and which is beneficial to prolong the lithium thermal battery life and improve the lithium battery safety.

KW - LiLaZrO

KW - Lithium thermal battery

KW - Safety

KW - Solid electrolyte

UR - https://www.scopus.com/pages/publications/85054459922

U2 - 10.1016/j.ssi.2018.09.021

DO - 10.1016/j.ssi.2018.09.021

M3 - 文章

AN - SCOPUS:85054459922

SN - 0167-2738

VL - 326

SP - 131

EP - 135

JO - Solid State Ionics

JF - Solid State Ionics

ER -

A novel and safety lithium thermal battery electrolyte - Li₇La₃Zr₂O₁₂ prepared by solid state method

Abstract

Keywords

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