Highly soluble organic nitrate additives for practical lithium metal batteries

Zhe Wang; Li Peng Hou; Zheng Li; Jia Lin Liang; Ming Yue Zhou; Chen Zi Zhao; Xiaoyuan Zeng; Bo Quan Li; Aibing Chen; Xue Qiang Zhang; Peng Dong; Yingjie Zhang; Jia Qi Huang; Qiang Zhang

doi:10.1002/cey2.283

Highly soluble organic nitrate additives for practical lithium metal batteries

Zhe Wang, Li Peng Hou, Zheng Li, Jia Lin Liang, Ming Yue Zhou, Chen Zi Zhao, Xiaoyuan Zeng, Bo Quan Li, Aibing Chen^*, Xue Qiang Zhang^*, Peng Dong, Yingjie Zhang, Jia Qi Huang, Qiang Zhang^*

^*Corresponding author for this work

Advanced Research Institute of Multidisciplinary Science

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

39 Citations (Scopus)

Abstract

The stability of lithium metal anodes essentially dictates the lifespan of high-energy-density lithium metal batteries. Lithium nitrate (LiNO₃) is widely recognized as an effective additive to stabilize lithium metal anodes by forming LiN_xO_y-containing solid electrolyte interphase (SEI). However, its poor solubility in electrolytes, especially ester electrolytes, hinders its applications in lithium metal batteries. Herein, an organic nitrate, isosorbide nitrate (ISDN), is proposed to replace LiNO₃. ISDN has a high solubility of 3.3 M in ester electrolytes due to the introduction of organic segments in the molecule. The decomposition of ISDN generates LiN_xO_y-rich SEI, enabling uniform lithium deposition. The lifespan of lithium metal batteries with ISDN significantly increases from 80 to 155 cycles under demanding conditions. Furthermore, a lithium metal pouch cell of 439 Wh kg⁻¹ delivers 50 cycles. This work opens a new avenue to develop additives by molecular modifications for practical lithium metal batteries.

Original language	English
Article number	e283
Journal	Carbon Energy
Volume	5
Issue number	1
DOIs	https://doi.org/10.1002/cey2.283
Publication status	Published - Jan 2023

Keywords

electrolyte additives
lithium metal anodes
organic nitrate
pouch cells
solid electrolyte interphase

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/cey2.283

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title = "Highly soluble organic nitrate additives for practical lithium metal batteries",

abstract = "The stability of lithium metal anodes essentially dictates the lifespan of high-energy-density lithium metal batteries. Lithium nitrate (LiNO3) is widely recognized as an effective additive to stabilize lithium metal anodes by forming LiNxOy-containing solid electrolyte interphase (SEI). However, its poor solubility in electrolytes, especially ester electrolytes, hinders its applications in lithium metal batteries. Herein, an organic nitrate, isosorbide nitrate (ISDN), is proposed to replace LiNO3. ISDN has a high solubility of 3.3 M in ester electrolytes due to the introduction of organic segments in the molecule. The decomposition of ISDN generates LiNxOy-rich SEI, enabling uniform lithium deposition. The lifespan of lithium metal batteries with ISDN significantly increases from 80 to 155 cycles under demanding conditions. Furthermore, a lithium metal pouch cell of 439 Wh kg−1 delivers 50 cycles. This work opens a new avenue to develop additives by molecular modifications for practical lithium metal batteries.",

keywords = "electrolyte additives, lithium metal anodes, organic nitrate, pouch cells, solid electrolyte interphase",

author = "Zhe Wang and Hou, {Li Peng} and Zheng Li and Liang, {Jia Lin} and Zhou, {Ming Yue} and Zhao, {Chen Zi} and Xiaoyuan Zeng and Li, {Bo Quan} and Aibing Chen and Zhang, {Xue Qiang} and Peng Dong and Yingjie Zhang and Huang, {Jia Qi} and Qiang Zhang",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors. Carbon Energy published by Wenzhou University and John Wiley & Sons Australia, Ltd.",

year = "2023",

month = jan,

doi = "10.1002/cey2.283",

language = "English",

volume = "5",

journal = "Carbon Energy",

issn = "2637-9368",

publisher = "John Wiley & Sons Inc.",

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T1 - Highly soluble organic nitrate additives for practical lithium metal batteries

AU - Wang, Zhe

AU - Hou, Li Peng

AU - Li, Zheng

AU - Liang, Jia Lin

AU - Zhou, Ming Yue

AU - Zhao, Chen Zi

AU - Zeng, Xiaoyuan

AU - Li, Bo Quan

AU - Chen, Aibing

AU - Zhang, Xue Qiang

AU - Dong, Peng

AU - Zhang, Yingjie

AU - Huang, Jia Qi

AU - Zhang, Qiang

PY - 2023/1

Y1 - 2023/1

N2 - The stability of lithium metal anodes essentially dictates the lifespan of high-energy-density lithium metal batteries. Lithium nitrate (LiNO3) is widely recognized as an effective additive to stabilize lithium metal anodes by forming LiNxOy-containing solid electrolyte interphase (SEI). However, its poor solubility in electrolytes, especially ester electrolytes, hinders its applications in lithium metal batteries. Herein, an organic nitrate, isosorbide nitrate (ISDN), is proposed to replace LiNO3. ISDN has a high solubility of 3.3 M in ester electrolytes due to the introduction of organic segments in the molecule. The decomposition of ISDN generates LiNxOy-rich SEI, enabling uniform lithium deposition. The lifespan of lithium metal batteries with ISDN significantly increases from 80 to 155 cycles under demanding conditions. Furthermore, a lithium metal pouch cell of 439 Wh kg−1 delivers 50 cycles. This work opens a new avenue to develop additives by molecular modifications for practical lithium metal batteries.

AB - The stability of lithium metal anodes essentially dictates the lifespan of high-energy-density lithium metal batteries. Lithium nitrate (LiNO3) is widely recognized as an effective additive to stabilize lithium metal anodes by forming LiNxOy-containing solid electrolyte interphase (SEI). However, its poor solubility in electrolytes, especially ester electrolytes, hinders its applications in lithium metal batteries. Herein, an organic nitrate, isosorbide nitrate (ISDN), is proposed to replace LiNO3. ISDN has a high solubility of 3.3 M in ester electrolytes due to the introduction of organic segments in the molecule. The decomposition of ISDN generates LiNxOy-rich SEI, enabling uniform lithium deposition. The lifespan of lithium metal batteries with ISDN significantly increases from 80 to 155 cycles under demanding conditions. Furthermore, a lithium metal pouch cell of 439 Wh kg−1 delivers 50 cycles. This work opens a new avenue to develop additives by molecular modifications for practical lithium metal batteries.

KW - electrolyte additives

KW - lithium metal anodes

KW - organic nitrate

KW - pouch cells

KW - solid electrolyte interphase

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U2 - 10.1002/cey2.283

DO - 10.1002/cey2.283

M3 - Article

AN - SCOPUS:85142207450

SN - 2637-9368

VL - 5

JO - Carbon Energy

JF - Carbon Energy

IS - 1

M1 - e283

ER -

Highly soluble organic nitrate additives for practical lithium metal batteries

Abstract

Keywords

UN SDGs

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