Nickel-Rich and Lithium-Rich Layered Oxide Cathodes: Progress and Perspectives
- Title
- Nickel-Rich and Lithium-Rich Layered Oxide Cathodes: Progress and Perspectives
- Author
- 선양국
- Keywords
- LI-ION BATTERIES; POSITIVE ELECTRODE MATERIALS; IRREVERSIBLE CAPACITY LOSS; X-RAY-ABSORPTION; IMPROVED ELECTROCHEMICAL PERFORMANCE; INITIAL COULOMBIC EFFICIENCY; TERM CYCLING PERFORMANCE; TRANSITION-METAL OXIDES; HIGH-RATE CAPABILITY; HIGH-ENERGY-DENSITY
- Issue Date
- 2016-01
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- ADVANCED ENERGY MATERIALS, v. 6, NO 1, Article number 1501010, Page. 1-9
- Abstract
- Ni-rich layered oxides and Li-rich layered oxides are topics of much research interest as cathodes for Li-ion batteries due to their low cost and higher discharge capacities compared to those of LiCoO2 and LiMn2O4. However, Ni-rich layered oxides have several pitfalls, including difficulty in synthesizing a well-ordered material with all Ni3+ ions, poor cyclability, moisture sensitivity, a thermal runaway reaction, and formation of a harmful surface layer caused by side reactions with the electrolyte. Recent efforts towards Ni-rich layered oxides have centered on optimizing the composition and processing conditions to obtain controlled bulk and surface compositions to overcome the capacity fade. Li-rich layered oxides also have negative aspects, including oxygen loss from the lattice during first charge, a large first cycle irreversible capacity loss, poor rate capability, side reactions with the electrolyte, low tap density, and voltage decay during extended cycling. Recent work on Li-rich layered oxides has focused on understanding the surface and bulk structures and eliminating the undesirable properties. Followed by a brief introduction, an account of recent developments on the understanding and performance gains of Ni-rich and Li-rich layered oxide cathodes is provided, along with future research directions.
- URI
- http://onlinelibrary.wiley.com/doi/10.1002/aenm.201501010/abstracthttp://hdl.handle.net/20.500.11754/30599
- ISSN
- 1614-6832; 1614-6840
- DOI
- 10.1002/aenm.201501010
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML