All Issue

2024 Vol.34, Issue 10 Preview Page

Research Paper

Synthesis of Iron Phosphate Via Coprecipitation Method for LiFePO4 Cathode
Jeongwoo Lim1
,
Seokwon Seo1
,
Chunjoong Kim1†
1Department of Material Science, Chungnam National University, Daejeon 34134, Republic of Korea
†Corresponding author E-Mail : ckim0218@cnu.ac.kr (C. Kim, Chungnam Nat’l Univ.)
27 October 2024. pp. 482-490
PDF XML Citation
Abstract

In this study, ferric phosphate precursors were prepared by controlling precipitation time, and the resulting LiFePO4 active materials were thoroughly investigated. Microscale LiFePO4 cathode materials, designed for high energy density at the cell level, were successfully synthesized through a 10 h co-precipitation. As the reaction time increased, smaller primary particles were aggregated more tightly, and the secondary particles exhibited a more spherical shape. Meanwhile, ammonia did not work effectively as a complexing agent. The carbon coated LiFePO4 (LiFePO4/C) synthesized from the 10 h ferric phosphate precursor exhibited larger primary and secondary particle sizes, a lower specific surface area, and higher crystallinity due to the sintering of the primary particles. Enhanced battery performance was achieved with the LiFePO4/C that was synthesized from the precursor with the smaller size, which exhibited the discharge capacity of 132.25 mAh ‧ g-1 at 0.1 C, 70 % capacity retention at 5 C compared with 0.1 C, and 99.9 % capacity retention after the 50th cycle. The better battery performance is attributed to the lower charge transfer resistance and higher ionic conductivity, resulting from smaller primary particle sizes and a shorter Li+ diffusion path.

Keywords
LiFePO4
coprecipitation
iron phosphate
FePO4
lithium ion battery
References
1

J. A. Sanguesa, V. Torres-Sanz, P. Garrido, F. J. Martinez and J. M. Marquez-Barja, Smart Cities, 4, 372 (2021).

10.3390/smartcities4010022
2

X. Sun, Z. Li, X. Wang and C. Li, Energies, 13, 90 (2020).

10.3390/en13010090
3

D. Deng, Energy Sci. Eng., 3, 385 (2015).

10.1002/ese3.95
4

J. N. Reimers and J. R. Dahn, J. Electrochem. Soc., 139, 2091 (1992).

10.1149/1.2221184
5

F. Schipper and D. Aurbach, Russ. J. Electrochem., 52, 1095 (2016).

10.1134/S1023193516120120
6

S.-P. Chen, D. Lv, J. Chen, Y.-H. Zhang and F.-N. Shi, Sustainable Energy Fuels, 36, 1232 (2022).

10.1021/acs.energyfuels.1c03757
7

K. Hoang and M. Johannes, Chem. Mater., 23, 3003 (2011).

10.1021/cm200725j
8

F. Astuti, V. L. Maghfirohtuzzoimah, S. H. Intifadhah, P. Az-Zahra, R. Arifin, W. Klysubun, M. Zainuri and Darminto, J. Phys.: Conf. Ser., 1951, 012007 (2021).

10.1088/1742-6596/1951/1/012007
9

G. Qin, Q. Ma and C. Wang, Electrochim. Acta, 115, 407 (2014).

10.1016/j.electacta.2013.10.177
10

M. M. Doeff, Y. Hu, F. McLarnon and R. Kostecki, Electrochem. Solid-State Lett., 6, A207 (2003).

10.1149/1.1601372
11

Z. Tian, S. Liu, F. Ye, S. Yao, Z. Zhou and S. Wang, Appl. Surf. Sci., 305, 427 (2014).

10.1016/j.apsusc.2014.03.106
12

J. N. Bridson, S. E. Quinlan and P. R. Tremaine, Chem. Mater., 10, 763 (1998).

10.1021/cm9704847
13

H. Choi, J. Y. Seo and C. S. Kim, IEEE Trans. Magn., 57, 2200305 (2021).

10.1109/TMAG.2020.3014728
14

K. Okada, I. Kimura and K. Machida, RSC Adv., 8, 5848 (2018).

10.1039/C7RA12740E35539603PMC9078183
15

C. Nan, J. Lu, L. Li, L. Li, Q. Peng and Y. Li, Nano Res., 6, 469 (2013).

10.1007/s12274-013-0324-8
16

D. Saikia, J. R. Deka, C.-J. Chou, C.-H. Lin, Y.-C. Yang and H.-M. Kao, ACS Appl. Energy Mater., 2, 1121 (2019).

10.1021/acsaem.8b01682
17

Y. Zhang, P. Xin and Q. Yao, J. Alloys Compd., 741, 404 (2018).

10.1016/j.jallcom.2018.01.083
18

R. Yang, E. Kang, B. Jiang and J. H. Ahn, Nanoscale Res. Lett., 7, 40 (2012).

10.1186/1556-276X-7-4022221711PMC3330020
19

M.-Y. Cho, S.-M. Park, K.-B. Kim, J.-W. Lee and K. C. Roh, J. Electrochem. Sci. Technol., 3, 135 (2012).

10.33961/JECST.2012.3.3.135
20

X. Lou, B. Hu, J. Huang and T. Li, in Proceedings of the AASRI International Conference on Industrial Electronics and Applications (London, UK, June 2015). ed. Y. Wu, W. Deng (Atlantis Press, Amsterdam, Netherlands, 2015) p.15.

21

Z.-R. Chang, H.-J. Lv, H. Tang, X.-Z. Yuan and H. Wang, J. Alloys Compd., 501, 14 (2010).

10.1016/j.jallcom.2010.04.112
22

D. Schünemann , T. Langer , M. Binnewies and R. Pöttgen, Z. Phys. Chem. (Berlin, Ger.), 226, 167 (2012).

10.1524/zpch.2012.0146
23

Y. Zhu, S. Tang, H. Shi and H. Hu, Ceram. Int., 40, 2685 (2014).

10.1016/j.ceramint.2013.10.055
24

T. Zhang, D. Gong, S. Lin and J. Yu, Chem. Eng. J., 449, 137830 (2022).

10.1016/j.cej.2022.137830
25

J. Wang and X. Sun, Energy Environ. Sci., 5, 5163 (2012).

10.1039/C1EE01263K
26

T. Zhang, S. Lin and J. Yu, Ind. Eng. Chem. Res., 61, 5181 (2022).

10.1021/acs.iecr.1c04784
Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 34
  • No :10
  • Pages :482-490
  • Received Date : 2024-09-22
  • Revised Date : 2024-10-07
  • Accepted Date : 2024-10-11
  • DOI :https://doi.org/10.3740/MRSK.2024.34.10.482
Journal Informaiton Korean Journal of Materials Research Korean Journal of Materials Research
Online Submission
  • scopus
  • NRF
  • KOFST
  • crossref crossmark
  • crossref cited-by
  • crosscheck
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close