Synthesis of Li[Li1.19Ni0.16Co0.08Mn0.57]O-2 cathode materials with a high volumetric capacity for Li-ion batteries
- Authors
- Kim, Hyo-Jin; Jung, Hun-Gi; Scrosati, Bruno; Sun, Yang Kook
- Issue Date
- Apr-2012
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Lithium-ion batteries; Cathode materials; Coprecipitation synthesis; Tap density; Volumetric capacity
- Citation
- JOURNAL OF POWER SOURCES, v.203, pp.115 - 120
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 203
- Start Page
- 115
- End Page
- 120
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27557
- DOI
- 10.1016/j.jpowsour.2011.11.076
- ISSN
- 0378-7753
- 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.
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