Abstract
Nanosize carbon-coated samples of the solid solution LiNi1−y Co y PO4 were prepared and investigated with respect to high-voltage cathode materials (4–5 V) for Li-ion batteries. For the syntheses, a modified non-aqueous sol-gel approach under argon atmosphere was applied. Crystal structure and morphology of the products were analyzed by X-ray powder diffraction, scanning electron microscopy, and Raman spectroscopy. Phase pure samples crystallize in the olivine-type structure with a linear relation between lattice parameters and chemical composition. The mean crystal size of the particles is smaller than 300 nm with increasing agglomeration towards samples with higher nickel content. Effects of the Ni/Co ratio on P-O and M-O bonds were explored by FTIR and UV/VIS measurements, too. Substitution of Ni by Co causes larger cell volumes, longer atomic distances, and weaker P-O and M-O bonds. Additional studies focus on the mechanism of formation of LiNiPO4 and the conditions for the formation of the phosphide by-products Ni3P and Ni12P5 by carbothermal reduction. The electrochemical properties of all compounds were investigated by galvanostatic charge/discharge measurements and differential capacity analysis. The small particles of the sol-gel process lead to a superior capacity in comparison to a common solid-state synthesis. Cyclability of the whole solid-solution is evaluated for the first time. For a Ni content of 33 %, the voltage is shifted to a higher level and a positive effect on capacity retention is observed.
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Padhi AK, Nanjundaswamy KS, Goodenough JB (1997) J Electrochem Soc 144:1188–1194
Fuchs JN (1834) J Prakt Chem 3:98–104
Zaghib K, Mauger A, Groult H, Goodenough JB, Julien CM (2013) Materials 6:1028–1049
Sun C, Rajasekhara S, Goodenough JB, Zhou F (2011) J Am Chem Soc 133:2132–2135
Julien CM, Mauger A (2013) Ionics 19:951–988
Bramnik NN, Bramnik KG, Buhrmester T, Baehtz C, Ehrenberg H, Fuess H (2004) J Solid State Electrochem 8:558–564
Rommel SM, Schall N, Brünig C, Weihrich R (2014) Monatsh Chem 145:385–404
Piana M, Arrabito M, Bodoardo S, D’Epifanio A, Satolli D, Croce F, Scrosati B (2002) Ionics 8:17–26
Julien CM, Mauger A, Zaghib K, Veillette R, Groult H (2012) Ionics 18:625–633
Dimesso L, Becker D, Spanheimer C, Jaegermann W (2012) J Solid State Electrochem 16:3791–3798
Ellis B, Herle SP, Rho YH, Nazar LF, Dunlap R, Perry LK, Ryan DH (2007) Faraday Discuss 134:119–141
Wang D, Xiao J, Xu W, Zhang JG (2010) The 15th International Meeting on Lithium Batteries Abstract #372
Rissouli K, Benkhouja K, Ramos-Barrado JR, Julien C (2003) Mater Sci Eng B 98:185–189
Garcia-Moreno O, Alvarez-Vega M, Garcia-Alvarado F, Garcia-Jaca J, Gallardo JM, Sanján ML, Amador U (2001) Chem Mater 13:1570–1576
Okada S, Sawa S, Egashira M, Yamaki J, Tabuchi M, Kageyama H, Konishi T, Yoshino A (2001) J Power Sources 97:430–432
Wolfenstine J, Allen J (2005) J Power Sources 142:389–390
Delacourt C, Poizot P, Levasseur S, Masquelier C (2006) Electrochem Solid-State Lett 9:A352–A355
Kandhasamy S, Pandey A, Minakshi M (2012) Electrochim Acta 60:170–176
Herle SP, Ellis B, Coombs N, Nazar LF (2004) Nat Mater 3:147–152
Fisher CAJ, Prieto VMH, Islam MS (2008) Chem Mater 20:5907–5915
Minakshi M, Singh P, Appadoo D, Martin DE (2011) Electrochim Acta 56:4356–4360
Bramnik NN, Trots DM, Hofmann HJ, Ehrenberg H (2009) Phys Chem Chem Phys 11:3271–3277
Minakshi M, Singh P, Ralph D, Appadoo D, Blackford M, Ionescu M (2012) Ionics 18:583–590
Wolfenstine J, Allen J (2004) J Power Sources 136:150–153
Bramnik NN, Nikolowski K, Baehtz C, Bramnik KG, Ehrenberg H (2007) Chem Mater 19:908–915
Amine K, Yasuda H, Yamachi M (2000) Electrochem Solid-State Lett 3:178–179
Shanmukaraj D, Murugan R (2004) Ionics 10:88–92
Dimesso L, Spanheimer C, Jaegermann W (2013) Mater Res Bull 48:559–565
Muraliganth T, Manthiram A (2010) J Phys Chem C 114:15330–15540
Bhuvaneswari D, Gangulibabu, Doh C, Kalaiselvi N (2011) Int J Electrochem Sci 6:3714–3728
Wang W, Yang Y, Liang Y, Cui L, Casalongue HS, Li Y, Hong G, Cui Y, Dai H (2011) Angew Chem 50:7364–7368
Qing R, Yang MC, Meng S, Sigmund W (2013) Electrochim Acta 108:827–832
Yang J, Xu JJ (2006) J Electrochem Soc 153:A716–A723
Scherrer P (1918) Göttinger Nachrichten Gesell 2:98–100
Abrahams I (1985) Acta Cryst C41:1–4
Petricek V, Dusek M, Palatinus L, Jana (2006) The crystallographic computing system. Institute of Physics, Praha
Vegard L (1921) Z Physi A 1:17–26
Shannon RD (1976) Acta Cryst A 32:751–767
Lee IK, Kim CM, Kim SJ, Kim CS (2012) J Appl Phys 111:07D7221–07D7223
Molenda J, Kulka A, Milewska A, Zając W, Świerczek K (2013) Materials 6:1656–1687
Goni A, Lezama L, Arriortua MI, Barberisa GE, Rojo T (2000) J Mater Chem 10:423–428
Paques-Ledent MT, Tarte P (1973) Spectrochim Acta A: Mol Spectrosc 29:1007–1016
Sharabi R, Markevich E, Borgel V, Salitra G, Aurbach D, Semrau G, Schmidt MA, Schall N (2011) Electrochem Commun 13:800–802
Yang SMG, Aravindan V, Cho WI, Chang DR, Kim HS, Lee YS (2012) J Electrochem Soc 159:A1013–A1018
Markevich E, Sharabi R, Gottlieb H, Borgel V, Fridman K, Salitra G, Aurbach D, Semrau G, Schmidt MA, Schall N, Bruenig C (2012) Electrochem Commun 15:22–25
Penazzi N, Arrabito M, Piana M, Bodoardo S, Panero S, Amadei I (2004) J Eur Ceram Soc 24:1381–1384
Sharabi R, Markevich E, Fridman K, Gershinsky G, Salitra G, Aurbach D, Semrau G, Schmidt MA, Schall N, Bruenig C (2013) Electrochem Commun 28:20–23
Acknowledgments
The authors thank Holger Kunz and Jasmin Dollinger for cycling tests. Prof. Dr. Alkwin Slenczka and Ulrike Schießl are acknowledged for Raman and SEM measurements, respectively.
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Rommel, S.M., Rothballer, J., Schall, N. et al. Characterization of the carbon-coated LiNi1−y Co y PO4 solid solution synthesized by a non-aqueous sol-gel route. Ionics 21, 325–333 (2015). https://doi.org/10.1007/s11581-014-1191-3
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DOI: https://doi.org/10.1007/s11581-014-1191-3