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Title: Understanding the initial irreversibility of metal sulfides for sodium-ion batteries via operando techniques

Abstract

Transition metal sulfides are promising high capacity anodes for sodium-ion batteries in terms of the conversion reaction with multiple alkali metal ions. Nonetheless, some inherent challenges such as sluggish sodium ion diffusion kinetics, large volume change, and poor cycle stability limit their implementation. Addressing these issues necessitates a comprehensive understanding the complex sodium ion storage mechanism particularly at the initial cycle. Here, taking nickel subsulfide as a model material, we reveal the complicated conversion reaction mechanism upon the first cycle by combining in operando 2D transmission X-ray microscopy with X-ray absorption spectroscopy, ex-situ 3D nano-tomography, high-energy X-ray diffraction and electrochemical impedance spectroscopy. This study demonstrates that the microstructure evolution, inherent slow sodium ions diffusion kinetics, and slow ion mobility at the two-phase interface contribute to the high irreversible capacity upon the first cycle. Finally, such understandings are critical for developing the conversion reaction materials with the desired electrochemical activity and stability.

Authors:
 [1];  [2];  [3];  [3];  [3];  [3];  [4];  [4];  [2]
  1. Harbin Inst. of Technology (China). MIIT Key Lab. of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
  3. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
  4. Harbin Inst. of Technology (China). MIIT Key Lab. of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1433998
Alternate Identifier(s):
OSTI ID: 1436251; OSTI ID: 1461325
Report Number(s):
BNL-203536-2018-JAAM; BNL-203493-2018-JAAM
Journal ID: ISSN 2211-2855
Grant/Contract Number:  
SC0012704; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nano Energy
Additional Journal Information:
Journal Volume: 43; Journal Issue: C; Journal ID: ISSN 2211-2855
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Metal sulfides; Conversion mechanism; In operando; Synchrotron techniques; Sodium-ion batteries; 36 MATERIALS SCIENCE

Citation Formats

Wang, Liguang, Wang, Jiajun, Guo, Fangmin, Ma, Lu, Ren, Yang, Wu, Tianpin, Zuo, Pengjian, Yin, Geping, and Wang, Jun. Understanding the initial irreversibility of metal sulfides for sodium-ion batteries via operando techniques. United States: N. p., 2018. Web. doi:10.1016/j.nanoen.2017.11.029.
Wang, Liguang, Wang, Jiajun, Guo, Fangmin, Ma, Lu, Ren, Yang, Wu, Tianpin, Zuo, Pengjian, Yin, Geping, & Wang, Jun. Understanding the initial irreversibility of metal sulfides for sodium-ion batteries via operando techniques. United States. doi:10.1016/j.nanoen.2017.11.029.
Wang, Liguang, Wang, Jiajun, Guo, Fangmin, Ma, Lu, Ren, Yang, Wu, Tianpin, Zuo, Pengjian, Yin, Geping, and Wang, Jun. Tue . "Understanding the initial irreversibility of metal sulfides for sodium-ion batteries via operando techniques". United States. doi:10.1016/j.nanoen.2017.11.029.
@article{osti_1433998,
title = {Understanding the initial irreversibility of metal sulfides for sodium-ion batteries via operando techniques},
author = {Wang, Liguang and Wang, Jiajun and Guo, Fangmin and Ma, Lu and Ren, Yang and Wu, Tianpin and Zuo, Pengjian and Yin, Geping and Wang, Jun},
abstractNote = {Transition metal sulfides are promising high capacity anodes for sodium-ion batteries in terms of the conversion reaction with multiple alkali metal ions. Nonetheless, some inherent challenges such as sluggish sodium ion diffusion kinetics, large volume change, and poor cycle stability limit their implementation. Addressing these issues necessitates a comprehensive understanding the complex sodium ion storage mechanism particularly at the initial cycle. Here, taking nickel subsulfide as a model material, we reveal the complicated conversion reaction mechanism upon the first cycle by combining in operando 2D transmission X-ray microscopy with X-ray absorption spectroscopy, ex-situ 3D nano-tomography, high-energy X-ray diffraction and electrochemical impedance spectroscopy. This study demonstrates that the microstructure evolution, inherent slow sodium ions diffusion kinetics, and slow ion mobility at the two-phase interface contribute to the high irreversible capacity upon the first cycle. Finally, such understandings are critical for developing the conversion reaction materials with the desired electrochemical activity and stability.},
doi = {10.1016/j.nanoen.2017.11.029},
journal = {Nano Energy},
number = C,
volume = 43,
place = {United States},
year = {Tue Nov 13 00:00:00 EST 2018},
month = {Tue Nov 13 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on November 13, 2019
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Cited by: 3 works
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