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Lithium Nitrate Solvation Chemistry in Carbonate Electrolyte Sustains High‐Voltage Lithium Metal Batteries

The lithium metal anode is regarded as a promising candidate in next‐generation energy storage devices. Lithium nitrate (LiNO) is widely applied as an effective additive in ether electrolyte to increase the interfacial stability in batteries containing lithium metal anodes. However, because of its p... Full description

Journal Title: Angewandte Chemie International Edition 22 October 2018, Vol.57(43), pp.14055-14059
Main Author: Yan, Chong
Other Authors: Yao, Yu‐Xing , Chen, Xiang , Cheng, Xin‐Bing , Zhang, Xue‐Qiang , Huang, Jia‐Qi , Zhang, Qiang
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1433-7851 ; E-ISSN: 1521-3773 ; DOI: 10.1002/anie.201807034
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recordid: wj10.1002/anie.201807034
title: Lithium Nitrate Solvation Chemistry in Carbonate Electrolyte Sustains High‐Voltage Lithium Metal Batteries
format: Article
creator:
  • Yan, Chong
  • Yao, Yu‐Xing
  • Chen, Xiang
  • Cheng, Xin‐Bing
  • Zhang, Xue‐Qiang
  • Huang, Jia‐Qi
  • Zhang, Qiang
subjects:
  • Electrolyte Additives
  • High-Voltage Cathodes
  • Lithium Anodes
  • Lithium Deposition
  • Lithium Nitrate
ispartof: Angewandte Chemie International Edition, 22 October 2018, Vol.57(43), pp.14055-14059
description: The lithium metal anode is regarded as a promising candidate in next‐generation energy storage devices. Lithium nitrate (LiNO) is widely applied as an effective additive in ether electrolyte to increase the interfacial stability in batteries containing lithium metal anodes. However, because of its poor solubility LiNO is rarely utilized in the high‐voltage window provided by carbonate electrolyte. Dissolution of LiNO in carbonate electrolyte is realized through an effective solvation regulation strategy. LiNO can be directly dissolved in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding trace amounts of copper fluoride as a dissolution promoter. LiNO protects the Li metal anode in a working high‐voltage Li metal battery. When a LiNiCoAlO cathode is paired with a Li metal anode, an extraordinary capacity retention of 53 % is achieved after 300 cycles (13 % after 200 cycles for LiNO‐free electrolyte) and a very high average Coulombic efficiency above 99.5 % is achieved at 0.5 C. The solvation chemistry of LiNO‐containing carbonate electrolyte may sustain high‐voltage Li metal anodes operating in corrosive carbonate electrolytes. : LiNO can be dissolved directly in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding a trace amount of copper fluoride to promote dissolution. The solvation structure of the electrolyte system protects the lithium metal anode in a working high‐voltage lithium metal battery. NCA=LiNiCoAlO.
language: eng
source:
identifier: ISSN: 1433-7851 ; E-ISSN: 1521-3773 ; DOI: 10.1002/anie.201807034
fulltext: fulltext
issn:
  • 1433-7851
  • 14337851
  • 1521-3773
  • 15213773
url: Link


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titleLithium Nitrate Solvation Chemistry in Carbonate Electrolyte Sustains High‐Voltage Lithium Metal Batteries
creatorYan, Chong ; Yao, Yu‐Xing ; Chen, Xiang ; Cheng, Xin‐Bing ; Zhang, Xue‐Qiang ; Huang, Jia‐Qi ; Zhang, Qiang
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subjectElectrolyte Additives ; High-Voltage Cathodes ; Lithium Anodes ; Lithium Deposition ; Lithium Nitrate
descriptionThe lithium metal anode is regarded as a promising candidate in next‐generation energy storage devices. Lithium nitrate (LiNO) is widely applied as an effective additive in ether electrolyte to increase the interfacial stability in batteries containing lithium metal anodes. However, because of its poor solubility LiNO is rarely utilized in the high‐voltage window provided by carbonate electrolyte. Dissolution of LiNO in carbonate electrolyte is realized through an effective solvation regulation strategy. LiNO can be directly dissolved in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding trace amounts of copper fluoride as a dissolution promoter. LiNO protects the Li metal anode in a working high‐voltage Li metal battery. When a LiNiCoAlO cathode is paired with a Li metal anode, an extraordinary capacity retention of 53 % is achieved after 300 cycles (13 % after 200 cycles for LiNO‐free electrolyte) and a very high average Coulombic efficiency above 99.5 % is achieved at 0.5 C. The solvation chemistry of LiNO‐containing carbonate electrolyte may sustain high‐voltage Li metal anodes operating in corrosive carbonate electrolytes. : LiNO can be dissolved directly in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding a trace amount of copper fluoride to promote dissolution. The solvation structure of the electrolyte system protects the lithium metal anode in a working high‐voltage lithium metal battery. NCA=LiNiCoAlO.
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descriptionThe lithium metal anode is regarded as a promising candidate in next‐generation energy storage devices. Lithium nitrate (LiNO) is widely applied as an effective additive in ether electrolyte to increase the interfacial stability in batteries containing lithium metal anodes. However, because of its poor solubility LiNO is rarely utilized in the high‐voltage window provided by carbonate electrolyte. Dissolution of LiNO in carbonate electrolyte is realized through an effective solvation regulation strategy. LiNO can be directly dissolved in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding trace amounts of copper fluoride as a dissolution promoter. LiNO protects the Li metal anode in a working high‐voltage Li metal battery. When a LiNiCoAlO cathode is paired with a Li metal anode, an extraordinary capacity retention of 53 % is achieved after 300 cycles (13 % after 200 cycles for LiNO‐free electrolyte) and a very high average Coulombic efficiency above 99.5 % is achieved at 0.5 C. The solvation chemistry of LiNO‐containing carbonate electrolyte may sustain high‐voltage Li metal anodes operating in corrosive carbonate electrolytes. : LiNO can be dissolved directly in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding a trace amount of copper fluoride to promote dissolution. The solvation structure of the electrolyte system protects the lithium metal anode in a working high‐voltage lithium metal battery. NCA=LiNiCoAlO.
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abstractThe lithium metal anode is regarded as a promising candidate in next‐generation energy storage devices. Lithium nitrate (LiNO) is widely applied as an effective additive in ether electrolyte to increase the interfacial stability in batteries containing lithium metal anodes. However, because of its poor solubility LiNO is rarely utilized in the high‐voltage window provided by carbonate electrolyte. Dissolution of LiNO in carbonate electrolyte is realized through an effective solvation regulation strategy. LiNO can be directly dissolved in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding trace amounts of copper fluoride as a dissolution promoter. LiNO protects the Li metal anode in a working high‐voltage Li metal battery. When a LiNiCoAlO cathode is paired with a Li metal anode, an extraordinary capacity retention of 53 % is achieved after 300 cycles (13 % after 200 cycles for LiNO‐free electrolyte) and a very high average Coulombic efficiency above 99.5 % is achieved at 0.5 C. The solvation chemistry of LiNO‐containing carbonate electrolyte may sustain high‐voltage Li metal anodes operating in corrosive carbonate electrolytes. : LiNO can be dissolved directly in an ethylene carbonate/diethyl carbonate electrolyte mixture by adding a trace amount of copper fluoride to promote dissolution. The solvation structure of the electrolyte system protects the lithium metal anode in a working high‐voltage lithium metal battery. NCA=LiNiCoAlO.
doi10.1002/anie.201807034
pages14055-14059
date2018-10-22