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High retention rate NCA cathode powders from spray drying and flame assisted spray pyrolysis using glycerol as the solvent

Journal Article · · Powder Technology
 [1];  [2];  [2];  [2];  [2]
  1. Univ. of Missouri, Columbia, MO (United States); University of Missouri
  2. 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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