High capacity 3D structured tin-based electroplated Li-ion battery anodes

Pengcheng Sun, Jerome Davis, Luoxia Cao, Zhelong Jiang, John B. Cook, Hailong Ning, Jinyun Liu, Sanghyeon Kim, Feifei Fan, Ralph G. Nuzzo, Paul V. Braun

Research output: Contribution to journalArticle

Abstract

3D structured porous electrodes have been considered as a possible solution for accommodating the volume change of alloying lithium ion battery anode materials during cycling. However, lab-scale porous electrodes tend to be thin, and the loading of the activity materials is also small, the combination of which results in electrodes with impractically low areal and volumetric capacities. Here, we develop a high areal and volumetric capacity 3D-structured Sn/C anode by using a two steps electroplating process. An electrode with a 20%v/v Sn loading exhibits a high volumetric/areal capacity of ∼879 mA h/cm3/6.59 mA h/cm2 after 100 cycles at 0.5 C and a good rate performance of about 750 mA h/cm3 and 5.5 mA h/cm2 (delithiation) at 10 C in a half-cell configuration. The 3D Sn/C anode also shows good compatibility with a commercial LCO cathode in a full cell configuration.

Original languageEnglish (US)
Pages (from-to)151-156
Number of pages6
JournalEnergy Storage Materials
Volume17
DOIs
StatePublished - Feb 2019

Keywords

  • Areal capacity
  • Electroplating
  • Lithium ion battery
  • Structured anode
  • Volumetric capacity

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Energy Engineering and Power Technology

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  • Cite this

    Sun, P., Davis, J., Cao, L., Jiang, Z., Cook, J. B., Ning, H., Liu, J., Kim, S., Fan, F., Nuzzo, R. G., & Braun, P. V. (2019). High capacity 3D structured tin-based electroplated Li-ion battery anodes. Energy Storage Materials, 17, 151-156. https://doi.org/10.1016/j.ensm.2018.11.017