Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries

Yue Jiao Li; Cui Guo; Lu Shan Yue; Wen Jie Qu; Nan Chen; Yu Juan Dai; Ren Jie Chen; Feng Wu

doi:10.1007/s12598-018-1056-4

Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries

Yue Jiao Li^*, Cui Guo, Lu Shan Yue, Wen Jie Qu, Nan Chen, Yu Juan Dai, Ren Jie Chen, Feng Wu

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

In order to avoid leakage problem caused by liquid electrolyte, a new ionogel electrolyte was developed by in situ immobilizing organosilicon-functionalized ionic liquid within a nanoporous silica matrix. The ionic liquid evenly coats on the surface of porous silica and fills in the silica framework pores with no strong chemical interaction. The ionogel electrolyte has the dual advantages of a silica solid support and a wide electrochemical stability window of ionic liquid (4.87 V vs. Li⁺/Li). The half-cells assembled with this electrolyte and LiFePO₄ electrode have excellent performance at room temperature and 60 °C. The Li/SiO₂-IGE/LiFePO₄ cell displays a discharge capacity of 129.1 mAh·g⁻¹ after 200 charge/discharge cycles at room temperature.

Original language	English
Pages (from-to)	504-509
Number of pages	6
Journal	Rare Metals
Volume	37
Issue number	6
DOIs	https://doi.org/10.1007/s12598-018-1056-4
Publication status	Published - 1 Jun 2018
Externally published	Yes

Keywords

Ionic liquid
Ionogel electrolyte
Organosilicon group
SiO

UN SDGs

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

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10.1007/s12598-018-1056-4

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title = "Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries",

abstract = "In order to avoid leakage problem caused by liquid electrolyte, a new ionogel electrolyte was developed by in situ immobilizing organosilicon-functionalized ionic liquid within a nanoporous silica matrix. The ionic liquid evenly coats on the surface of porous silica and fills in the silica framework pores with no strong chemical interaction. The ionogel electrolyte has the dual advantages of a silica solid support and a wide electrochemical stability window of ionic liquid (4.87 V vs. Li+/Li). The half-cells assembled with this electrolyte and LiFePO4 electrode have excellent performance at room temperature and 60 °C. The Li/SiO2-IGE/LiFePO4 cell displays a discharge capacity of 129.1 mAh·g−1 after 200 charge/discharge cycles at room temperature.",

keywords = "Ionic liquid, Ionogel electrolyte, Organosilicon group, SiO",

author = "Li, {Yue Jiao} and Cui Guo and Yue, {Lu Shan} and Qu, {Wen Jie} and Nan Chen and Dai, {Yu Juan} and Chen, {Ren Jie} and Feng Wu",

note = "Publisher Copyright: {\textcopyright} 2018, The Nonferrous Metals Society of China and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2018",

month = jun,

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doi = "10.1007/s12598-018-1056-4",

language = "English",

volume = "37",

pages = "504--509",

journal = "Rare Metals",

issn = "1001-0521",

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TY - JOUR

T1 - Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries

AU - Li, Yue Jiao

AU - Guo, Cui

AU - Yue, Lu Shan

AU - Qu, Wen Jie

AU - Chen, Nan

AU - Dai, Yu Juan

AU - Chen, Ren Jie

AU - Wu, Feng

PY - 2018/6/1

Y1 - 2018/6/1

N2 - In order to avoid leakage problem caused by liquid electrolyte, a new ionogel electrolyte was developed by in situ immobilizing organosilicon-functionalized ionic liquid within a nanoporous silica matrix. The ionic liquid evenly coats on the surface of porous silica and fills in the silica framework pores with no strong chemical interaction. The ionogel electrolyte has the dual advantages of a silica solid support and a wide electrochemical stability window of ionic liquid (4.87 V vs. Li+/Li). The half-cells assembled with this electrolyte and LiFePO4 electrode have excellent performance at room temperature and 60 °C. The Li/SiO2-IGE/LiFePO4 cell displays a discharge capacity of 129.1 mAh·g−1 after 200 charge/discharge cycles at room temperature.

AB - In order to avoid leakage problem caused by liquid electrolyte, a new ionogel electrolyte was developed by in situ immobilizing organosilicon-functionalized ionic liquid within a nanoporous silica matrix. The ionic liquid evenly coats on the surface of porous silica and fills in the silica framework pores with no strong chemical interaction. The ionogel electrolyte has the dual advantages of a silica solid support and a wide electrochemical stability window of ionic liquid (4.87 V vs. Li+/Li). The half-cells assembled with this electrolyte and LiFePO4 electrode have excellent performance at room temperature and 60 °C. The Li/SiO2-IGE/LiFePO4 cell displays a discharge capacity of 129.1 mAh·g−1 after 200 charge/discharge cycles at room temperature.

KW - Ionic liquid

KW - Ionogel electrolyte

KW - Organosilicon group

KW - SiO

UR - http://www.scopus.com/inward/record.url?scp=85047632791&partnerID=8YFLogxK

U2 - 10.1007/s12598-018-1056-4

DO - 10.1007/s12598-018-1056-4

M3 - Article

AN - SCOPUS:85047632791

SN - 1001-0521

VL - 37

SP - 504

EP - 509

JO - Rare Metals

JF - Rare Metals

IS - 6

ER -

Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries

Abstract

Keywords

UN SDGs

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