A High-Performance Sodium-Ion Full Cell with a Layered Oxide Cathode and a Phosphorous-Based Composite Anode
- Univ. of Texas, Austin, TX (United States). Materials Science and Engineering Program & Texas Materials Inst.
A low-cost sodium-ion full cell with a O3-type layered Na[Cu0.2(Fe1/3Mn2/3)0.8]O2 cathode and an alloy-type P-TiP2-C anode is presented. The cathode is synthesized by an oxalate coprecipitation method and optimized cathodes shows a high specific capacity of 135 mAh g-1 at 0.1C rate with a high rate capability of 90 mAh g-1 at 1C rate and 70 mAh g-1 at 2C rate with good cyclability. The full cell exhibits better capacity retention than the half cell with the cathode due to the elimination of the degradation caused by sodium-metal anode. The dramatically enhanced electrochemical performance of the Na[Cu0.2(Fe1/3Mn2/3)0.8]O2 / P-TiP2-C full cell compared to that of the sample with no Cu is attributed to the structural stabilization imparted by Cu by suppressing the phase change from the O3 structure to the P3 structure during cycling.
- Research Organization:
- Univ. of Texas, Austin, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Materials Sciences & Engineering Division
- Grant/Contract Number:
- SC0005397
- OSTI ID:
- 1430255
- Journal Information:
- Journal of the Electrochemical Society, Vol. 164, Issue 2; ISSN 0013-4651
- Publisher:
- The Electrochemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
High Energy Density Sodium-Ion Battery with Industrially Feasible and Air-Stable O3-Type Layered Oxide Cathode
|
journal | October 2017 |
Recent Progress of Layered Transition Metal Oxide Cathodes for Sodium‐Ion Batteries
|
journal | February 2019 |
Nonaqueous Sodium‐Ion Full Cells: Status, Strategies, and Prospects
|
journal | March 2019 |
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