High retention rate NCA cathode powders from spray drying and flame assisted spray pyrolysis using glycerol as the solvent
Journal Article
·
· Powder Technology
- Univ. of Missouri, Columbia, MO (United States); University of Missouri
- Univ. of Missouri, Columbia, MO (United States)
This paper reports the synthesis of LiNi0.8Co0.15Al0.05O2 (NCA) cathode powders using a simple flame assisted spray pyrolysis (FSP) and a spray drying (SD) processes, in which metal salt precursors dissolved in glycerol were used for spraying. X-ray diffraction confirms that the NCA powders have a layered structure, with a low order of cationic mixing. Electron microscopy shows that the particles produced by FSP have a relatively smaller size and a smoother surface than that produced by SD. The NCA powder from the FSP process has an initial discharge capacity of 200.2 mAh/g in voltage range of 3.0–4.3 V at 0.1C. It shows very good capacity retention of 91.5% at 1C and 89.4% at 5C after 200 cycles. Furthermore, these results demonstrate that glycerol can replace water and be used as a solvent in spray processes to make cathode powders, promising a new environmentally-friendly synthesis route for battery powder materials production.
- Research Organization:
- Univ. of Missouri, Columbia, MO (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- EE0007282
- OSTI ID:
- 1822894
- Alternate ID(s):
- OSTI ID: 1776171
OSTI ID: 1799290
- Journal Information:
- Powder Technology, Journal Name: Powder Technology Vol. 363; ISSN 0032-5910
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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