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Perovskite-Type SrVO3 as High-Performance Anode Materials for Lithium-Ion Batteries
Xiaolei Li1, Zifeng Lin1, Na Jin1
1College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China.
Advanced Materials (Deerfield Beach, Fla.)
|October 22, 2021
Summary
Strontium vanadate (SrVO3) perovskites show excellent performance as lithium-ion battery anodes. These additive-free electrodes offer high capacity, good rate capability, and stability due to low volume expansion.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Perovskite-type oxides possess valuable multifunctional properties for various applications.
- Strontium vanadate (SrVO3) is a perovskite oxide with potential for energy storage.
Purpose of the Study:
- To evaluate the electrochemical performance of SrVO3 as a lithium-ion battery anode.
- To investigate the storage mechanism and stability of SrVO3 electrodes.
Main Methods:
- Fabrication of conducting additive-free SrVO3 electrodes.
- Electrochemical testing including capacity, rate performance, and cycling stability.
- Analysis of electrode volume expansion and storage mechanism.
Main Results:
- SrVO3 electrodes deliver a high specific capacity of 324 mAh g-1 at a low potential (≈0.9 V vs Li/Li+).
- Excellent high-rate performance and high areal capacity (≈5.4 mAh cm-2) with ultrathick electrodes (≈120 μm).
- Low volume expansion (2.3%) and good cycling stability attributed to a solid-solution Li+ storage mechanism.
Conclusions:
- SrVO3 is a promising anode material for lithium-ion batteries.
- Perovskite oxides offer opportunities for developing next-generation metal-ion battery anodes.
