A sodium-ion battery exploiting layered oxide cathode, graphite anode and glyme-based electrolyte

JOURNAL OF POWER SOURCES

卷:310

Article

Hasa, Ivana^1,2,3  Dou, Xinwei^2,3  Buchholz, Daniel^2,3  Shao-Horn, Yang^4,5,6  Hassoun, Jusef^1,7  Passerini, Stefano^2,3  Scrosati, Bruno^2,8 

[1] Univ Roma La Sapienza, Dept Chem, Piazzale Aldo Moro 5, I-00185 Rome, Italy

[2] Helmholtz Inst Ulm, Helmholtzstr 11, D-89081 Ulm, Germany

[3] Karlsruhe Inst Technol, POB 3640, D-76021 Karlsruhe, Germany

[4] MIT, Electrochem Energy Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[5] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[6] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[7] Univ Ferrara, Dept Chem & Pharmaceut Sci, Via Fossato Mortara, I-44121 Ferrara, Italy

[8] Italian Inst Technol, Via Morego 30, I-16163 Genoa, Italy

关键词: Sodium-ion battery;    Graphite anode;    Layered oxide cathode;    Glyme based electrolyte;    High-power;   

DOI  :  10.1016/j.jpowsour.2016.01.082

来源: Elsevier

【 摘 要 】

Room-temperature rechargeable sodium-ion batteries (SIBs), in view of the large availability and low cost of sodium raw materials, represent an important class of electrochemical systems suitable for application in large-scale energy storage. In this work, we report a novel, high power SIB formed by coupling the layered P2-Na0.7CoO2 cathode with the graphite anode in an optimized ether-based electrolyte. The study firstly addresses the electrochemical optimization of the two electrode materials and then the realization and characterization of the novel SIB based on their combination. The cell represents an original sodium rocking chair battery obtained combining the intercalation/de-intercalation processes of sodium within the cathode and anode layers. We show herein that this battery, favored by suitable electrode/electrolyte combination, offers unique performance in terms of cycle life, efficiency and, especially, power capability. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free