KaydedilenlerDerginizi ekleyin

Dergiler / Turkish Journal of Chemistry / 2014 / Cilt: 38 - Sayı: 5

Performance degradation of LixFePO4 (x = 0, 1) induced by postannealing

Xiaofei SUN
Youlong XU
Xiaoyu ZHENG
Xiangfei MENG
Rui ZHANG
Sayfa
837–849
Yayın Tarihi
2014-05-01
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

In addition, the ``self-healing'' process along with cycling is analyzed by in-situ synchrotron X-ray diffraction.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:Olivine LiFePO4 has been studied for more than a decade as a promising cathode material for rechargeable lithium batteries.
📊
Temel Bulgular & Veri:Micro-sized LiFePO4 is prepared by an optimized hydrothermal method in this paper.
💡
Sonuç & Katkı:In addition, the ``self-healing'' process along with cycling is analyzed by in-situ synchrotron X-ray diffraction.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Lithium iron phosphate · hydrothermal synthesis · postannealing

Özet

Olivine LiFePO4 has been studied for more than a decade as a promising cathode material for rechargeable lithium batteries. However, the low electric conductivity and tap density still hinder its large-scale commercialization. Micro-sized LiFePO4 is prepared by an optimized hydrothermal method in this paper. The influence of postannealing on the physicochemical properties of LiFePO4 and FePO4 is investigated to understand the plausible mechanism for performance degradation. It is found that postannealing even chemical delithiation greatly affects the particle size, morphology, pore distribution, surface area, and probably the lattice strain of LixFePO4 (x = 0, 1). Consequently, the electrochemical performances of annealed materials are severely deteriorated because of the sluggish lithium diffusion, difficult electrolyte accessibility, and incomplete phase transition during charge/discharge. In addition, the ``self-healing'' process along with cycling is analyzed by in-situ synchrotron X-ray diffraction.

Abstract

Olivine LiFePO4 has been studied for more than a decade as a promising cathode material for rechargeable lithium batteries. However, the low electric conductivity and tap density still hinder its large-scale commercialization. Micro-sized LiFePO4 is prepared by an optimized hydrothermal method in this paper. The influence of postannealing on the physicochemical properties of LiFePO4 and FePO4 is investigated to understand the plausible mechanism for performance degradation. It is found that postannealing even chemical delithiation greatly affects the particle size, morphology, pore distribution, surface area, and probably the lattice strain of LixFePO4 (x = 0, 1). Consequently, the electrochemical performances of annealed materials are severely deteriorated because of the sluggish lithium diffusion, difficult electrolyte accessibility, and incomplete phase transition during charge/discharge. In addition, the ``self-healing'' process along with cycling is analyzed by in-situ synchrotron X-ray diffraction.

🔖

Bu Makaleye Atıf Yap

SUN, X., XU, Y., ZHENG, X., MENG, X., ZHANG, R. (2014). Performance degradation of LixFePO4 (x = 0, 1) induced by postannealing. Turkish Journal of Chemistry, Cilt: 38 - Sayı: 5, 837–849. https://ajindex.com/articles/184788

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (25)

  1. Armand, M.; Tarascon, J. M. Nature 2008, 451, 652–657.
  2. Whittingham, M. S. Proc. IEEE 2012, 100, 1518–1534.
  3. Dunn, B.; Kamath, H.; Tarascon J. M. Science 2011, 334, 928–935.
  4. Goodenough, J. B. J. Solid State Electrochem. 2012, 16, 2019–2029.
  5. Cheng, F. Y.; Liang, J.; Tao, Z. L.; Chen J. Adv. Mater. 2011, 23, 1695–1715. Kang K. S.; Meng, Y. S.; Breger, J.; Grey, C. P.; Ceder, G. Science 2006, 311, 977–980.
  6. Kraytsberg, A.; Ein-Eli, Y. Adv. Energy Mater. 2012, 2, 922–939.
  7. Gong, Z. L.; Yang, Y. Energy Environ. Sci. 2011, 4, 3223–3242.
  8. Nyten, A.; Abouimrane, A.; Armand, M.; Gustafsson, T.; Thomas, J. O. Electrochem. Commun. 2005, 7, 156–160.
  9. Kim, J. C.; Moore, C. J.; Kang, B.; Hautier, G.; Jain, A.; Ceder, G. J. Electrochem. Soc. 2011, 158, A309–A315. Sun, X.; Xu, Y.; Jia, M.; Ding, P.; Liu, Y.; Chen, K. J. Mater. Chem. A 2013, 1, 2501–2507.
  10. Barpanda, P.; Ati, M.; Melot, B. C.; Rousse, G.; Chotard, J. N.; Doublet, M. L.; Sougrati, M. T.; Corr, S. A.; Jumas, J. C.; Tarascon, J. M. Nat. Mater. 2011, 10, 772–779.
  11. Goodenough, J. B.; Kim, Y. Chem. Mater. 2010, 22, 587–603.
  12. Manthiram, A. J. Phys. Chem. Lett. 2011, 2, 176–184.
  13. Padhi, A. K.; Nanjundaswamy, K. S.; Goodenough, J. B. J. Electrochem. Soc. 1997, 144, 1188–1194.
  14. Park, O. K.; Cho, Y.; Lee, S.; Yoo, H. C.; Song, H. K.; Cho, J. Energy Environ. Sci. 2011, 4, 1621–1633.
  15. Morgan, D.; Ven, A. V. d.; Ceder, G. Electrochem. Solid-State Lett. 2004, 7, A30–A32. Islam, M. S.; Driscoll, D. J.; Fisher, C. A. J.; Slater, P. R. Chem. Mater. 2005, 17, 5085–5092.
  16. Nishimura, S. I.; Kobayashi, G.; Ohoyama, K.; Kanno, R.; Yashima, M.; Yamada, A. Nat. Mater. 2008, 7, 707–711.
  17. Andersson, A. S.; Thomas, J. O. J. Power Sources 2001, 97–98, 498–502.
  18. Guoying, C.; Xiangyun, S.; Thomas, J. R. Electrochem. Solid-State Lett. 2006, 9, A295–A298. Laffont, L.; Delacourt, C.; Gibot, P.; Wu, M. Y.; Kooyman, P.; Masquelier, C.; Tarascon, J. M. Chem. Mater. 2006, 18, 5520–5529.
  19. Delmas, C.; Maccario, M.; Croguennec, L.; Le Cras, F.; Weill, F. Nat. Mater. 2008, 7, 665–671.
  20. Yamada, A.; Koizumi, H.; Nishimura, S. I.; Sonoyama, N.; Kanno, R.; Yonemura, M.; Nakamura, T.; Kobayashi, Y. Nat. Mater. 2006, 5, 357–360.
  21. Gu, L.; Zhu, C.; Li, H.; Yu, Y.; Li, C.; Tsukimoto, S.; Maier, J.; Ikuhara, Y. J. Am. Chem. Soc. 2011, 133, 4661–4663.
  22. Malik, R.; Zhou, F.; Ceder, G. Nat. Mater. 2011, 10, 587–590.
  23. Bai, P.; Cogswell, D. A.; Bazant, M. Z. Nano Lett. 2011, 11, 4890–4896.
  24. Wang, J.; Sun, X. Energy Environ. Sci. 2012, 5, 5163–5185.
  25. Kang, B.; Ceder, G. Nature 2009, 458