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Cobalt-free Li-Rich $0.1Li_{2}MnO_{3}•0.9LiNi_{0.56}Mn_{0.44}O_{2}$ with High Performances as Cathode Material for Lithium-ion Batteries
| Content Provider | Scilit |
|---|---|
| Author | Dou, Shumei Wei, Fenyan Li, Huiqin Li, Ping |
| Copyright Year | 2018 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering The cobalt-free Li-rich layered oxide $0.1Li_{2}MnO_{3}0.9LiNi_{0.56}Mn_{0.44}O_{2}$ is successfully synthesized by a coprecipition method followed by high-temperature calcinations. The compostions and structures of the material have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and the results revealed that the sample possesses typical $α-NaFeO_{2}$ layered structure with a weak reflection of $LiMnO_{6}$, and of microspheres with porous surface. Electrochemical measurements showed that the cobalt-free Li-rich sample delivers good cycling stability and rate capability with initial discharge capacity of 263, 173, 137 and 57 mAh $g^{-1}$ at different current density of 50, 160, 320 and 640 mA $g^{-1}$, respectively. The electrochemical performances of the cobalt-free Li-rich $0.1Li_{2}MnO_{3}0.9LiNi_{0.56}Mn_{0.44}O_{2}$ could be related to not only the synergistic effect of specific morphology and appropriate size but also the porous surface. |
| Related Links | http://iopscience.iop.org/article/10.1088/1757-899X/381/1/012180/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/381/1/012180 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 1 |
| Volume Number | 381 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-08-16 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering |
| Content Type | Text |
| Resource Type | Article |
