Abstract
Nanosized lithium iron phosphate (LiFePO4) and transition metal oxide (MO, where M is Cu, Ni, Mn, Co, and Fe) particles are synthesized continuously in supercritical water at 25-30 MPa and 400°C under various conditions for active material application in lithium secondary ion batteries. The properties of the nanoparticles, including crystallinity, particle size, surface area, and electrochemical performance, are characterized in detail. The discharge capacity of LiFePO4 was enhanced up to 140 mAh/g using a simple carbon coating method. The LiFePO4 particles prepared using supercritical hydrothermal synthesis (SHS) deliver the reversible and stable capacity at a current density of 0.1 C rate during ten cycles. The initial discharge capacity of the MO is in the range of 800-1,100 mAh/g, values much higher than that of graphite. However, rapid capacity fading is observed after the first few cycles. The continuous SHS can be a promising method to produce nanosized cathode and anode materials.
| Original language | English |
|---|---|
| Pages (from-to) | 429-440 |
| Number of pages | 12 |
| Journal | Research on Chemical Intermediates |
| Volume | 37 |
| Issue number | 2-5 |
| DOIs | |
| Publication status | Published - 2011 Apr 1 |
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Keywords
- Anode-active material
- Cathode-active material
- Lithium iron phosphate
- Lithium secondary battery
- Metal oxide
- Supercritical hydrothermal synthesis
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Continuous supercritical hydrothermal synthesis : Lithium secondary ion battery applications. / Hong, Seung Ah; Nugroho, Agung; Kim, Su Jin; Kim, Jaehoon; Chung, Kyung Yoon; Cho, Byung Won; Kang, Jeong Won.
In: Research on Chemical Intermediates, Vol. 37, No. 2-5, 01.04.2011, p. 429-440.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Continuous supercritical hydrothermal synthesis
T2 - Lithium secondary ion battery applications
AU - Hong, Seung Ah
AU - Nugroho, Agung
AU - Kim, Su Jin
AU - Kim, Jaehoon
AU - Chung, Kyung Yoon
AU - Cho, Byung Won
AU - Kang, Jeong Won
PY - 2011/4/1
Y1 - 2011/4/1
N2 - Nanosized lithium iron phosphate (LiFePO4) and transition metal oxide (MO, where M is Cu, Ni, Mn, Co, and Fe) particles are synthesized continuously in supercritical water at 25-30 MPa and 400°C under various conditions for active material application in lithium secondary ion batteries. The properties of the nanoparticles, including crystallinity, particle size, surface area, and electrochemical performance, are characterized in detail. The discharge capacity of LiFePO4 was enhanced up to 140 mAh/g using a simple carbon coating method. The LiFePO4 particles prepared using supercritical hydrothermal synthesis (SHS) deliver the reversible and stable capacity at a current density of 0.1 C rate during ten cycles. The initial discharge capacity of the MO is in the range of 800-1,100 mAh/g, values much higher than that of graphite. However, rapid capacity fading is observed after the first few cycles. The continuous SHS can be a promising method to produce nanosized cathode and anode materials.
AB - Nanosized lithium iron phosphate (LiFePO4) and transition metal oxide (MO, where M is Cu, Ni, Mn, Co, and Fe) particles are synthesized continuously in supercritical water at 25-30 MPa and 400°C under various conditions for active material application in lithium secondary ion batteries. The properties of the nanoparticles, including crystallinity, particle size, surface area, and electrochemical performance, are characterized in detail. The discharge capacity of LiFePO4 was enhanced up to 140 mAh/g using a simple carbon coating method. The LiFePO4 particles prepared using supercritical hydrothermal synthesis (SHS) deliver the reversible and stable capacity at a current density of 0.1 C rate during ten cycles. The initial discharge capacity of the MO is in the range of 800-1,100 mAh/g, values much higher than that of graphite. However, rapid capacity fading is observed after the first few cycles. The continuous SHS can be a promising method to produce nanosized cathode and anode materials.
KW - Anode-active material
KW - Cathode-active material
KW - Lithium iron phosphate
KW - Lithium secondary battery
KW - Metal oxide
KW - Supercritical hydrothermal synthesis
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UR - http://www.scopus.com/inward/citedby.url?scp=79955872374&partnerID=8YFLogxK
U2 - 10.1007/s11164-011-0273-3
DO - 10.1007/s11164-011-0273-3
M3 - Article
VL - 37
SP - 429
EP - 440
JO - Research on Chemical Intermediates
JF - Research on Chemical Intermediates
SN - 0922-6168
IS - 2-5
ER -