Dendrite-Free Lithium Deposition for Lithium Metal Anodes with Interconnected Microsphere Protection

Yong Gun Lee, Saebom Ryu, Toshinori Sugimoto, Taehwan Yu, Won Seok Chang, Yooseong Yang, Changhoon Jung, Jae Sung Woo, Sung Gyu Kang, Heung Nam Han, Seok Gwang Doo, Yunil Hwang, Hyuk Chang, Jae Myung Lee, Jeong Yun Sun

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A lithium (Li) metal anode is required to achieve a high-energy-density battery, but because of an undesirable growth of Li dendrites, it still has safety and cyclability issues. In this study, we have developed a microsphere-protected (MSP) Li metal anode to suppress the growth of Li dendrites. Microspheres could guide Li ions to selective areas and pressurize dendrites during their growth. Interconnections between microspheres improved the pressurization. By using an MSP Li metal anode in a 200 mAh pouch-type Li/NCA full cell at 4.2 V, dendrite-free Li deposits with a density of 0.4 g/cm 3 , which is 3 times greater than that in the case of bare Li metal, were obtained after charging at 2.9 mAh/cm 2 . The MSP Li metal enhanced the cyclability to 190 cycles with a criterion of 90% capacity retention of the initial discharge capacity at a current density of 1.45 mA/cm 2 .

Original languageEnglish
Pages (from-to)5906-5914
Number of pages9
JournalChemistry of Materials
Volume29
Issue number14
DOIs
Publication statusPublished - 2017 Jul 25
Externally publishedYes

Fingerprint

Dendrites (metallography)
Microspheres
Lithium
Anodes
Metals
Lithium deposits
Pressurization
Current density
Ions

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Lee, Y. G., Ryu, S., Sugimoto, T., Yu, T., Chang, W. S., Yang, Y., ... Sun, J. Y. (2017). Dendrite-Free Lithium Deposition for Lithium Metal Anodes with Interconnected Microsphere Protection. Chemistry of Materials, 29(14), 5906-5914. https://doi.org/10.1021/acs.chemmater.7b01304

Dendrite-Free Lithium Deposition for Lithium Metal Anodes with Interconnected Microsphere Protection. / Lee, Yong Gun; Ryu, Saebom; Sugimoto, Toshinori; Yu, Taehwan; Chang, Won Seok; Yang, Yooseong; Jung, Changhoon; Woo, Jae Sung; Kang, Sung Gyu; Han, Heung Nam; Doo, Seok Gwang; Hwang, Yunil; Chang, Hyuk; Lee, Jae Myung; Sun, Jeong Yun.

In: Chemistry of Materials, Vol. 29, No. 14, 25.07.2017, p. 5906-5914.

Research output: Contribution to journalArticle

Lee, YG, Ryu, S, Sugimoto, T, Yu, T, Chang, WS, Yang, Y, Jung, C, Woo, JS, Kang, SG, Han, HN, Doo, SG, Hwang, Y, Chang, H, Lee, JM & Sun, JY 2017, 'Dendrite-Free Lithium Deposition for Lithium Metal Anodes with Interconnected Microsphere Protection', Chemistry of Materials, vol. 29, no. 14, pp. 5906-5914. https://doi.org/10.1021/acs.chemmater.7b01304
Lee, Yong Gun ; Ryu, Saebom ; Sugimoto, Toshinori ; Yu, Taehwan ; Chang, Won Seok ; Yang, Yooseong ; Jung, Changhoon ; Woo, Jae Sung ; Kang, Sung Gyu ; Han, Heung Nam ; Doo, Seok Gwang ; Hwang, Yunil ; Chang, Hyuk ; Lee, Jae Myung ; Sun, Jeong Yun. / Dendrite-Free Lithium Deposition for Lithium Metal Anodes with Interconnected Microsphere Protection. In: Chemistry of Materials. 2017 ; Vol. 29, No. 14. pp. 5906-5914.
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