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

Journal Article · · Nano Energy
 [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
+ Show Author Affiliations

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.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357; SC0012704
OSTI ID:
1433998
Report Number(s):
BNL--203493-2018-JAAM; BNL--203536-2018-JAAM
Journal Information:
Nano Energy, Journal Name: Nano Energy Journal Issue: C Vol. 43; ISSN 2211-2855
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (26)

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Cited By (9)

Revealing the Simultaneous Effects of Conductivity and Amorphous Nature of Atomic‐Layer‐Deposited Double‐Anion‐Based Zinc Oxysulfide as Superior Anodes in Na‐Ion Batteries journal June 2019
Revealing the Critical Factor in Metal Sulfide Anode Performance in Sodium‐Ion Batteries: An Investigation of Polysulfide Shuttling Issues journal November 2019
Enhanced pseudocapacitance contribution to outstanding Li-storage performance for a reduced graphene oxide-wrapped FeS composite anode journal January 2018
Dual carbon-protected metal sulfides and their application to sodium-ion battery anodes journal January 2018
Understanding the Li-ion storage mechanism in a carbon composited zinc sulfide electrode journal January 2019
Simple and scalable synthesis of CuS as an ultrafast and long-cycling anode for sodium ion batteries journal January 2019
Cyclic utilisation of waste tires as nanostructured anode materials for Li-ion batteries journal January 2020
Understanding the Li-ion storage mechanism in a carbon composited zinc sulfide electrode text January 2019
Understanding the Li-ion storage mechanism in a carbon composited zinc sulfide electrode text January 2019

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Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
Conversion mechanism
In operando
Metal sulfides
Sodium-ion batteries
Synchrotron techniques