Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries
Abstract: Acetates of lithium (LiC2H3O2) and nickel (NiC2H3O2) together with ammonium dihydrogen phosphate (NH4)H2PO4 were used as starting materials to prepare LiNiPO4 cathode materials via sol–gel technique. This simple and effective method of using distilled water as main solvent was assisted by...
Saved in:
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Springer New York LLC
2017
|
Subjects: | |
Online Access: | http://eprints.utem.edu.my/id/eprint/20835/2/rajam2.pdf http://eprints.utem.edu.my/id/eprint/20835/ https://link.springer.com/article/10.1007%2Fs10971-017-4372-5 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.utem.eprints.20835 |
---|---|
record_format |
eprints |
spelling |
my.utem.eprints.208352023-07-03T11:30:22Z http://eprints.utem.edu.my/id/eprint/20835/ Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries T. Subramaniam, Ramesh Karuppiah, Rajammal Kasi, Ramesh Dhar Malingam, Sivakumar Duraisamy, Navaneethan T Technology (General) TA Engineering (General). Civil engineering (General) Abstract: Acetates of lithium (LiC2H3O2) and nickel (NiC2H3O2) together with ammonium dihydrogen phosphate (NH4)H2PO4 were used as starting materials to prepare LiNiPO4 cathode materials via sol–gel technique. This simple and effective method of using distilled water as main solvent was assisted by small amount of oxalic acid. Final product was obtained after sintering process at temperatures of 500 °C, 600 °C, 700 °C, and 800 °C for 3 h. The peaks in X-ray diffraction patterns reveal ordered olivine structure of LiNiPO4 under Pnma space group. The surface morphologies as in field emission scanning electron microscopy images clearly showed complete formation of LiNiPO4 with uniform size distribution. Charge–discharge tests recorded initial discharge capacities of 97.3 mAh g−1 and 91.1 mAh g−1 for LiNiPO4 obtained at sintering temperatures of 700 and 800 °C respectively in the voltage range 2.5–4.5 V. Insitu carbon coating during synthesis improved electrochemical performances of LiNiPO4. Sintering temperature 700 °C produced smaller LiNiPO4 particles compared to 800 °C, which enables good capacity retention. Springer New York LLC 2017-04-22 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/20835/2/rajam2.pdf T. Subramaniam, Ramesh and Karuppiah, Rajammal and Kasi, Ramesh and Dhar Malingam, Sivakumar and Duraisamy, Navaneethan (2017) Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries. Journal of Sol-Gel Science and Technology, 83 (1). pp. 12-18. ISSN 0928-0707 https://link.springer.com/article/10.1007%2Fs10971-017-4372-5 10.1007/s10971-017-4372-5 |
institution |
Universiti Teknikal Malaysia Melaka |
building |
UTEM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Teknikal Malaysia Melaka |
content_source |
UTEM Institutional Repository |
url_provider |
http://eprints.utem.edu.my/ |
language |
English |
topic |
T Technology (General) TA Engineering (General). Civil engineering (General) |
spellingShingle |
T Technology (General) TA Engineering (General). Civil engineering (General) T. Subramaniam, Ramesh Karuppiah, Rajammal Kasi, Ramesh Dhar Malingam, Sivakumar Duraisamy, Navaneethan Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries |
description |
Abstract: Acetates of lithium (LiC2H3O2) and nickel (NiC2H3O2) together with ammonium dihydrogen phosphate (NH4)H2PO4 were used as starting materials to prepare LiNiPO4 cathode materials via sol–gel technique. This simple and effective method of using distilled water as main solvent was assisted by small amount of oxalic acid. Final product was obtained after sintering process at temperatures of 500 °C, 600 °C, 700 °C, and 800 °C for 3 h. The peaks in X-ray diffraction patterns reveal ordered olivine structure of LiNiPO4 under Pnma space group. The surface morphologies as in field emission scanning electron microscopy images clearly showed complete formation of LiNiPO4 with uniform size distribution. Charge–discharge tests recorded initial discharge capacities of 97.3 mAh g−1 and 91.1 mAh g−1 for LiNiPO4 obtained at sintering temperatures of 700 and 800 °C respectively in the voltage range 2.5–4.5 V. Insitu carbon coating during synthesis improved electrochemical performances of LiNiPO4. Sintering temperature 700 °C produced smaller LiNiPO4 particles compared to 800 °C, which enables good capacity retention. |
format |
Article |
author |
T. Subramaniam, Ramesh Karuppiah, Rajammal Kasi, Ramesh Dhar Malingam, Sivakumar Duraisamy, Navaneethan |
author_facet |
T. Subramaniam, Ramesh Karuppiah, Rajammal Kasi, Ramesh Dhar Malingam, Sivakumar Duraisamy, Navaneethan |
author_sort |
T. Subramaniam, Ramesh |
title |
Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries |
title_short |
Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries |
title_full |
Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries |
title_fullStr |
Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries |
title_full_unstemmed |
Influences of sintering temperatures and crystallite sizes on electrochemical properties of LiNiPO4 as cathode materials via sol–gel route for lithium ion batteries |
title_sort |
influences of sintering temperatures and crystallite sizes on electrochemical properties of linipo4 as cathode materials via sol–gel route for lithium ion batteries |
publisher |
Springer New York LLC |
publishDate |
2017 |
url |
http://eprints.utem.edu.my/id/eprint/20835/2/rajam2.pdf http://eprints.utem.edu.my/id/eprint/20835/ https://link.springer.com/article/10.1007%2Fs10971-017-4372-5 |
_version_ |
1770555160762777600 |
score |
13.160551 |