Abstract
A new full cell made with spinel-type electrodes is described. The LiNi0.5M1.5O4cathode and Co0.5Zn0.5Fe2O4 anode were prepared by innocuous and low cost hydrothermal processes. The synthesized samples exhibit characteristic morphologies consisting of spherical microparticles built from nanosized units. Once they were structurally identified by X-ray diffraction, the electrochemical responses of such electrodes regarding lithium insertion and those of full cells Co0.5Zn0.5Fe2O4//electrolyte (1MLiPF6EC/DEC1/1)// LiNi0.5Mn1.5O4were analysed. The composites for both electrodes in the full cells were prepared by using the environmentally friendly water-based Na-alginate binder. The electrochemical response seemed to be mainly related to microstructure features of the electrodes, which were revealed from scanning electron microscopy. The prepared lithium-ion-cells showed good cycling stability and high rate performance, particularly concerning the diminution of capacity losses at high current rates. High specific energy values of 350.8, 234.5 and 178.4 Wh kg−1 for C/5, C/2 and C/1, respectively, were obtained.
Original language | English |
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Pages (from-to) | 88-93 |
Number of pages | 6 |
Journal | Nano-Structures & Nano-Objects |
Volume | 11 |
DOIs | |
Publication status | Published - Jul 2017 |
Externally published | Yes |
Keywords
- CoZnFeOanode
- Full cell
- LiNiMnOcathode
- Lithium ion battery
- Micro/nano assembled electrodes