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Title: Triphase electrode performance adjustment for rechargeable ion batteries

Journal Article · · Nano Energy
 [1];  [1];  [2];  [3];  [1];  [3];  [3];  [1]
  1. Beijing Univ. of Technology, Beijing (People's Republic of China)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Chinese Academy of Sciences (CAS), Beijing (China)

Rechargeable batteries electrodes are mainly classical oxides with single structure, but their performance is insufficient to meet the growing energy storage needs of modern-society. Recently, composite-structure materials with great improvements in electrochemical performance have been developed. However, little research has been conducted on these materials with regard to adjusting their structures and further controlling their electrochemical performance. Herein, composite-structure Na2/3Ni1/3–xFexTi2/3O2 (0 ≤ x ≤ 1/3) electrodes for sodium-ion batteries were designed on the basis of results from in-situ high-temperature X-ray diffraction. Triphase compositions of P2-Na2/3Ni1/3Ti2/3O2, tunnel-Na2.65Ti3.35Fe0.65O9, and tunnel-NaFeTiO4 were prepared, and Na+ insertion/extraction in different structures was observed using in-situ electrochemical X-ray diffraction. An optimum electrode with 46% P2-structure presented the best comprehensive performance: 105 mAh g–1 initial reversible capacity along with 86.5% capacity-retention after 1500 cycles. As a result, this work opens a new field for designing and adjusting composite electrodes for better electrochemical performance, not limited for sodium-ion batteries but also for other advanced battery-systems.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1460945
Alternate ID(s):
OSTI ID: 1549074
Journal Information:
Nano Energy, Vol. 43, Issue C; ISSN 2211-2855
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (8)

A Water Stable, Near‐Zero‐Strain O3‐Layered Titanium‐Based Anode for Long Cycle Sodium‐Ion Battery journal December 2019
O3‐Type Layered Ni‐Rich Oxide: A High‐Capacity and Superior‐Rate Cathode for Sodium‐Ion Batteries journal December 2019
Layer‐Based Heterostructured Cathodes for Lithium‐Ion and Sodium‐Ion Batteries journal February 2019
Composite‐Structure Materials for Na‐Ion Batteries journal October 2018
Recent developments of phosphorus-based anodes for sodium ion batteries journal January 2018
High cathode utilization efficiency through interface engineering in all-solid-state lithium-metal batteries journal January 2019
Application of Operando X-ray Diffractometry in Various Aspects of the Investigations of Lithium/Sodium-Ion Batteries journal November 2018
Fundamental Understanding of Water‐Induced Mechanisms in Li–O 2 Batteries: Recent Developments and Perspectives journal November 2018