62 0

Synthesis of LiFexMn2-xO4 cathode materials by emulsion method and their electrochemical properties

Title
Synthesis of LiFexMn2-xO4 cathode materials by emulsion method and their electrochemical properties
Author
좌용호
Keywords
Lithium secondary battery; Emulsion method; LiFexMn2−xO4; Spinel structure; Cathode material; Powder preparation
Issue Date
2002-11
Publisher
ELSEVIER SCIENCE BV
Citation
Solid State Ionics, v. 158, issue. 3-4, page. 281-285
Abstract
The cathode material, LiFexMn2−xO4 (0.0≤x≤0.2) was prepared by the emulsion method and calcined at 800 °C for 48 h in air. The calcined powder had a spinel structure and was of spherical shape. The average particle size and the specific surface area were 0.20 μm and 3.4 m2/g, respectively. The composition LiFe0.05Mn1.95O4 showed the largest discharge capacity, 105 mA h/g, and 9% of capacity deterioration after 30 charge–discharge cycles. As the content of Fe increased, the discharge capacity decreased, and the two plateaus at 4.1 and 3.9 V seen in LiMn2O4 disappeared. It is considered that Fe addition into LiMn2O4 inhibited the formation of Li0.5Mn2O4 phase.
URI
http://www.sciencedirect.com/science/article/pii/S0167273802009098https://repository.hanyang.ac.kr/handle/20.500.11754/157784
ISSN
0167-2738; 1872-7689
DOI
10.1016/S0167-2738(02)00909-8
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE