Synthesis of Li[Li1.19Ni0.16Co0.08Mn0.57]O-2 cathode materials with a high volumetric capacity for Li-ion batteries
- Title
- Synthesis of Li[Li1.19Ni0.16Co0.08Mn0.57]O-2 cathode materials with a high volumetric capacity for Li-ion batteries
- Author
- 선양국
- Keywords
- Lithium-ion batteries; Cathode materials; Coprecipitation synthesis; Tap density; Volumetric capacity
- Issue Date
- 2012-07
- Publisher
- ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
- Citation
- JOURNAL OF POWER SOURCES, 권: 203, 페이지: 115-120
- Abstract
- Microscale Li[Li0.19Ni0.16Co0.08Mn0.57]O-2 powders with a high tap density were synthesized using [Ni0.2Co0.1Mn0.7]O-x precursor with a unique microstructure via coprecipitation in flowing air. The synthesized Li[Li0.19Ni0.16Co0.08Mn0.57]O-2 powders were composed of spherical nanosized primary particles, which results in a high tap density due to the high packing of the spherical primary particles. When used as electrode in a lithium cell, Li[Li0.19Ni0.16Co0.08Mn0.57]O-2 exhibits a very high gravimetric capacity of 263 mAh g(-1) and a volumetric capacity of 956 mAh cm(-3), as well as an excellent rate capability delivering a discharge capacity of 202 mAh g(-1) at a 2 C-rate. TEM analysis together with SEM observations show that the electrochemical performance of the Li[Li0.19Ni0.16Co0.08Mn0.57]O-2 electrode is primarily governed by its microstructure. (C) 2011 Elsevier B.V. All rights reserved.
- URI
- http://www.sciencedirect.com/science/article/pii/S0378775311023640?via%3Dihubhttp://hdl.handle.net/20.500.11754/40062
- ISSN
- 0378-7753
- DOI
- 10.1016/j.jpowsour.2011.11.076
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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