The effects of particle size distribution on compacted density of as-prepared spherical lithium iron phosphate (LFP) LFP-1 and LFP-2 materials electrode for high-performance 18650 Li-ion batteries are investigated systemically, while the selection of two commercial materials LFP-3 and LFP-4 as a comparison. The morphology study and physical characterization results show that the LFP materials are composed of numerous particles with an average size of 300–500 nm, and have well-developed interconnected pore structure and a specific surface area of 13–15 m2/g. For CR2032 coin-type cell, the specific discharge capacities of the LFP-1 and LFP-2 are about 165 mAh/g at 0.2 C. For 18650 batteries, results indicate that the LFP-3 material has the highest compacted density of 2.52 g/cm3 at a concentrated particle size distribution such as D10 = 0.56 μm, D50 = 1.46 μm, and D90 = 6.53 μm. By mixing two different particle sizes of LFP-1 and LFP-2, the compaction density can be increased significantly from 1.90 g/cm3 to 2.25 g/cm3.
Issue Section:
Research Papers
Topics:
Batteries,
Density,
Iron,
Lithium,
Particle size,
Electrodes,
Lithium-ion batteries,
Compacting,
Slurries
References
1.
Yoo
, E. J.
, Kim
, J.
, Hosono
, E.
, Zhou
, H.
, Kudo
, T.
, and Honma
, I.
, 2008
, “Large Reversible Li Storage of Graphene Nanosheet Families for Use in Rechargeable Lithium Ion Batteries
,” Nano Lett.
, 8
(8
), p. 2277
.2.
Zhang
, W. J.
, 2011
, “Structure and Performance of LiFePO4 Cathode Materials: A Review
,” J. Power Sources
, 196
(6
), pp. 2962
–2970
.3.
Du
, J.
, Jiao
, L.
, Wu
, Q.
, Liu
, Y.
, Qi
, Z.
, Guo
, L.
, Wang
, Y.
, and Yuan
, H.
, 2013
, “Mesoporous LiFePO4 Microspheres for Rechargeable Lithium-Ion Batteries
,” Electrochim. Acta
, 98
, pp. 288
–293
.4.
Oh
, S. W.
, Bang
, H. J.
, Myung
, S. T.
, Bae
, Y. C.
, Lee
, S. M.
, and Sun
, Y. K.
, 2008
, “The Effect of Morphological Properties on the Electrochemical Behavior of High Tap Density C – LiFePO4 Prepared Via Coprecipitation
,” J. Electrochem. Soc.
, 155
(6
), pp. A414
–A420
.5.
Oh
, S. W.
, Myung
, S. T.
, Oh
, S. M.
, Chong
, S. Y.
, Amine
, K.
, and Sun
, Y. K.
, 2010
, “Polyvinylpyrrolidone-Assisted Synthesis of Microscale C-LiFePO4 With High Tap Density as Positive Electrode Materials for Lithium Batteries
,” Electrochim. Acta
, 55
(3
), pp. 1193
–1199
.6.
Fey
, G. T. K.
, Lin
, Y. C.
, and Kao
, H. M.
, 2012
, “Characterization and Electrochemical Properties of High Tap-Density LiFePO4/C Cathode Materials by a Combination of Carbothermal Reduction and Molten Salt Methods
,” Electrochim. Acta
, 80
(10
), pp. 41
–49
.7.
Delacourt
, C.
, Poizot
, P.
, Levasseur
, S.
, and Masquelier
, C.
, 2006
, “Size Effects on Carbon-Free LiFePO4 Powders the Key to Superior Energy Density
,” Electrochem. Solid-State Lett.
, 9
(7
), pp. A352
–A355
.8.
Padhi
, A. K.
, Goodenough
, J. B.
, and Nanjundaswamy
, K. S.
, 1997
, “Phospho-Olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries
,” J. Electrochem. Soc.
, 144
(4
), pp. 1188
–1194
.9.
Eftekhari
, A.
, 2017
, “LiFePO4/C Nanocomposites for Lithium-Ion Batteries
,” J. Power Sources
, 343
, pp. 395
–411
.10.
Wang
, G. X.
, Yang
, L.
, Bewlay
, S. L.
, Chen
, Y.
, Liu
, H. K.
, and Ahn
, J. H.
, 2005
, “Electrochemical Properties of Carbon Coated LiFePO4 Cathode Materials
,” J. Power Sources
, 146
(1–2
), pp. 521
–524
.11.
Liu
, Q. B.
, Liao
, S. J.
, Song
, H. Y.
, and Liang
, Z. X.
, 2012
, “High-Performance LiFePO4/C Materials: Effect of Carbon Source on Microstructure and Performance
,” J. Power Sources
, 211
(211
), pp. 52
–58
.12.
Wu
, X. L.
, Jiang
, L. Y.
, Cao
, F. F.
, Guo
, Y. G.
, and Wan
, L. J.
, 2009
, “LiFePO4 Nanoparticles Embedded in a Nanoporous Carbon Matrix: Superior Cathode Material for Electrochemical Energy–Storage Devices
,” Adv. Mater.
, 21
(25–26
), pp. 2710
–2714
.13.
Liu
, Y.
, Liu
, D.
, Zhang
, Q.
, Yu
, D.
, Liu
, J.
, and Cao
, G.
, 2011
, “Lithium Iron Phosphate/Carbon Nanocomposite Film Cathodes for High Energy Lithium Ion Batteries
,” Electrochim. Acta
, 56
(5
), pp. 2559
–2565
.14.
Qiu
, B.
, Zhang
, Q.
, Hu
, H.
, Wang
, J.
, Liu
, J.
, Xia
, Y.
, Zeng
, Y.
, Wang
, X.
, and Liu
, Z.
, 2014
, “Electrochemical Investigation of Li-Excess Layered Oxide Cathode Materials/Mesocarbon Microbead in 18650 Batteries
,” Electrochim. Acta
, 123
(10
), pp. 317
–324
.15.
Ping
, W.
, Geng
, Z.
, Li
, Z.
, Sheng
, W.
, Zhang
, Y.
, Gu
, J.
, Zheng
, X.
, and Cao
, F.
, 2016
, “Improved Electrochemical Performance of LiFePO4@N-Doped Carbon Nanocomposites Using Polybenzoxazine as Nitrogen and Carbon Sources
,” ACS Appl. Mater. Interfaces
, 8
(40
), pp. 26908
–26915
.16.
Sofyan
, N.
, Setiadanu
, G. T.
, Zulfia
, A.
, and Kartini
, E.
, 2017
, “Effect of Different Calcination Temperatures and Carbon Coating on the Characteristics of LiFePO4 Prepared by Hydrothermal Route
,” Int. J. Eng. Technol.
, 9
(4
), pp. 3310
–3317
.17.
Chang
, Z.-R.
, Lv
, H. J.
, Tang
, H. W.
, Li
, H.-J.
, Yuan
, X. Z.
, and Wang
, H.
, 2009
, “Synthesis and Characterization of High-Density LiFePO4/C Composites as Cathode Materials for Lithium-Ion Batteries
,” Electrochim. Acta
, 54
(20
), pp. 4595
–4599
.18.
Li
, Y.
, Meyer
, S.
, Lim
, J.
, Lee
, S. C.
, Gent
, W. E.
, Marchesini
, S.
, Krishnan
, H.
, Tyliszczak
, T.
, Shapiro
, D.
, and Kilcoyne
, A. L.
, 2015
, “Effects of Particle Size, Electronic Connectivity, and Incoherent Nanoscale Domains on the Sequence of Lithiation in LiFePO4 Porous Electrodes
,” Adv. Mater.
, 27
(42
), p. 6591
.19.
Ferrari
, S.
, Lavall
, R. L.
, Capsoni
, D.
, Quartarone
, E.
, Magistris
, A.
, Mustarelli
, P.
, and Canton
, P.
, 2010
, “Influence of Particle Size and Crystal Orientation on the Electrochemical Behavior of Carbon-Coated LiFePO4
,” J. Phys. Chem. C
, 114
(29
), pp. 12598
–12603
.20.
Kang
, B.
, and Ceder
, G.
, 2009
, “Battery Materials for Ultrafast Charging and Discharging
,” Nature
, 458
(7235
), pp. 190
–193
.21.
Fey
, T. K.
, Chen
, Y. G.
, and Kao
, H. M.
, 2009
, “Electrochemical Properties of LiFePO4 Prepared Via Ball-Milling
,” J. Power Sources
, 189
(1
), pp. 169
–178
.22.
Hu
, Y.
, Doeff
, M. M.
, Kostecki
, R.
, and FiñOnes
, R.
, 2004
, “Electrochemical Performance of Sol-Gel Synthesized LiFePO4 in Lithium Batteries
,” J. Electrochem. Soc.
, 151
(8
), pp. A1279
–A1285
.23.
Yu
, S.
, Chung
, Y.
, Min
, S. S.
, Jin
, H. N.
, and Cho
, W. I.
, 2012
, “Investigation of Design Parameter Effects on High Current Performance of Lithium-Ion Cells With LiFePO4/Graphite Electrodes
,” J. Appl. Electrochem.
, 42
(6
), pp. 443
–453
.24.
Yu
, S.
, Kim
, S.
, Kim
, T. Y.
, Jin
, H. N.
, and Cho
, W. I.
, 2013
, “Transportation Properties in Nanosized LiFePO4 Positive Electrodes and Their Effects on the Cell Performance
,” J. Appl. Electrochem.
, 43
(3
), pp. 253
–262
.25.
Guan
, X. M.
, Li, G. J., Li, C. Y., and Ren
, R. M.
, 2017
, “Synthesis of Porous Nano/Micro Structured LiFePO4/C Cathode Materials for Lithium-Ion Batteries by Spray-Drying Method
,” Trans. Nonferrous Met. Soc. China
, 27
(1
), pp. 141
–147
.26.
Palomares
, V.
, Goñi
, A.
, Muro
, I. G. D.
, Meatza
, I. D.
, Bengoechea
, M.
, Cantero
, I.
, and Rojo
, T.
, 2010
, “Conductive Additive Content Balance in Li-Ion Battery Cathodes: Commercial Carbon Blacks Vs. In Situ Carbon From LiFePO4/C Composites
,” J. Power Sources
, 195
(22
), pp. 7661
–7668
.27.
Zhang
, X. M.
, Liao
, X. Z.
, Wang, L., and Ma, Z. F., 2007
, “Effect of Electrode Preparation Technology and Electrolytes on the Performance of LiFePO4 Cathode Material for Lithium Ion Battery
,” J. Chem. Eng. Chin. Univ.
, 21
(1
), pp. 54
–58
.28.
Munakata
, H.
, Takemura
, B.
, Saito
, T.
, and Kanamura
, K.
, 2012
, “Evaluation of Real Performance of LiFePO4 by Using Single Particle Technique
,” J. Power Sources
, 217
(217
), pp. 444
–448
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