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- Title
Enhanced electrochemical performance of Li<sub>1.2</sub>Ni<sub>0.13</sub>Co<sub>0.13</sub>Mn<sub>0.54</sub>O<sub>2</sub> composited with Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene nanosheets.
- Authors
Fang, Zhitang; Zhao, Bangchuan; Zhou, Jiafeng; Bai, Jin; Li, Kunzhen; Ma, Hongyang; Lin, Shuai; Zhu, Xuebin; Sun, Yuping
- Abstract
Li1.2Ni0.13Co0.13Mn0.54O2/Ti3C2Tx (LMR/TC) composite materials have been synthesized through mixing LMR particles with TC nanosheets. SEM result shows that most LMR particles are anchored on the surface of the Ti3C2Tx nanosheets. Such a structure can short the diffusion pathway for both the electron and lithium ions, enhancing electronic and ionic conductivities. Meanwhile, the composite structure keeps much stable during charge/discharge processes, leading to an enhanced cycling performance of the cathode. The LMR/TC (5 wt% Ti3C2Tx) composite electrode delivers an initial discharge capacity of 279.9 mA h g−1 at 0.1 C with coulombic efficiency of 81.8% and the capacity can maintain 248 mA h g−1 after 100 cycles with capacity retention of 85.7%. In contrast, the initial coulombic efficiency and the capacity retention after 100 cycles at same conditions of the pristine LMR electrode are only 67.1% and 67.6%, respectively. The composited cathode also shows an enhanced rate capacity compared to the pristine LMR.
- Subjects
LITHIUM; COMPOSITE structures; COMPOSITE materials; LITHIUM ions; IONIC conductivity; PERFORMANCE of cathodes; TITANIUM
- Publication
Journal of Solid State Electrochemistry, 2019, Vol 23, Issue 5, p1419
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-019-04232-6