Synergetic Effects of Inorganic Components in Solid Electrolyte Interphase on High Cycle Efficiency of Lithium Ion Batteries

Qinglin Zhang; Jie Pan; Peng Lu; Zhongyi Liu; Mark W. Verbrugge; Brian W. Sheldon; Yang Tse Cheng; Yue Qi; Xingcheng Xiao

doi:10.1021/acs.nanolett.5b05283

Synergetic Effects of Inorganic Components in Solid Electrolyte Interphase on High Cycle Efficiency of Lithium Ion Batteries

Qinglin Zhang, Jie Pan, Peng Lu, Zhongyi Liu, Mark W. Verbrugge, Brian W. Sheldon, Yang Tse Cheng, Yue Qi, Xingcheng Xiao

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

340 Scopus citations

Abstract

The solid electrolyte interphase (SEI), a passivation layer formed on electrodes, is critical to battery performance and durability. The inorganic components in SEI, including lithium carbonate (Li₂CO₃) and lithium fluoride (LiF), provide both mechanical and chemical protection, meanwhile control lithium ion transport. Although both Li₂CO₃ and LiF have relatively low ionic conductivity, we found, surprisingly, that the contact between Li₂CO₃ and LiF can promote space charge accumulation along their interfaces, which generates a higher ionic carrier concentration and significantly improves lithium ion transport and reduces electron leakage. The synergetic effect of the two inorganic components leads to high current efficiency and long cycle stability.

Original language	English
Pages (from-to)	2011-2016
Number of pages	6
Journal	Nano Letters
Volume	16
Issue number	3
DOIs	https://doi.org/10.1021/acs.nanolett.5b05283
State	Published - Mar 9 2016

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

Funding

The authors acknowledge the support by the Assistant Secretary for Energy Efficiency and Renewable Energy, Vehicle Technologies Office of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, Subcontract No. 7056410 under the Batteries for Battery Materials Research (BMR) Program. Q.Z. is grateful for General Motors'' summer internship program. Partial Financial support from National Science Foundation (Award Number 1355438, Powering the Kentucky Bioeconomy for a Sustainable Future) is also gratefully acknowledged. The authors thank Dr. Nicolas J. Briot and Dr. Dali Qian in the Electron Microscopy Center of University of Kentucky for the TEM figures. J.P. and Y.T.C. acknowledge the hardware support from Center for Computational Sciences in University of Kentucky.

Funders	Funder number
Powering the Kentucky Bioeconomy
National Science Foundation (NSF)
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory	DE-AC02-05CH11231, 7056410
Office of the Director	1355438
Office of Energy Efficiency and Renewable Energy

Keywords

LiF/LiCO interface
Lithium ion batteries
electron leakage
ionic conduction
solid electrolyte interphase
space charge

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

UN SDGs

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

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10.1021/acs.nanolett.5b05283

Cite this

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abstract = "The solid electrolyte interphase (SEI), a passivation layer formed on electrodes, is critical to battery performance and durability. The inorganic components in SEI, including lithium carbonate (Li2CO3) and lithium fluoride (LiF), provide both mechanical and chemical protection, meanwhile control lithium ion transport. Although both Li2CO3 and LiF have relatively low ionic conductivity, we found, surprisingly, that the contact between Li2CO3 and LiF can promote space charge accumulation along their interfaces, which generates a higher ionic carrier concentration and significantly improves lithium ion transport and reduces electron leakage. The synergetic effect of the two inorganic components leads to high current efficiency and long cycle stability.",

keywords = "LiF/LiCO interface, Lithium ion batteries, electron leakage, ionic conduction, solid electrolyte interphase, space charge",

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doi = "10.1021/acs.nanolett.5b05283",

language = "English",

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AU - Zhang, Qinglin

AU - Pan, Jie

AU - Lu, Peng

AU - Liu, Zhongyi

AU - Verbrugge, Mark W.

AU - Sheldon, Brian W.

AU - Cheng, Yang Tse

AU - Qi, Yue

AU - Xiao, Xingcheng

PY - 2016/3/9

Y1 - 2016/3/9

N2 - The solid electrolyte interphase (SEI), a passivation layer formed on electrodes, is critical to battery performance and durability. The inorganic components in SEI, including lithium carbonate (Li2CO3) and lithium fluoride (LiF), provide both mechanical and chemical protection, meanwhile control lithium ion transport. Although both Li2CO3 and LiF have relatively low ionic conductivity, we found, surprisingly, that the contact between Li2CO3 and LiF can promote space charge accumulation along their interfaces, which generates a higher ionic carrier concentration and significantly improves lithium ion transport and reduces electron leakage. The synergetic effect of the two inorganic components leads to high current efficiency and long cycle stability.

AB - The solid electrolyte interphase (SEI), a passivation layer formed on electrodes, is critical to battery performance and durability. The inorganic components in SEI, including lithium carbonate (Li2CO3) and lithium fluoride (LiF), provide both mechanical and chemical protection, meanwhile control lithium ion transport. Although both Li2CO3 and LiF have relatively low ionic conductivity, we found, surprisingly, that the contact between Li2CO3 and LiF can promote space charge accumulation along their interfaces, which generates a higher ionic carrier concentration and significantly improves lithium ion transport and reduces electron leakage. The synergetic effect of the two inorganic components leads to high current efficiency and long cycle stability.

KW - LiF/LiCO interface

KW - Lithium ion batteries

KW - electron leakage

KW - ionic conduction

KW - solid electrolyte interphase

KW - space charge

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Synergetic Effects of Inorganic Components in Solid Electrolyte Interphase on High Cycle Efficiency of Lithium Ion Batteries

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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