Synergistic effect of 3D current collector structure and Ni inactive matrix on the electrochemical performances of Sn-based anodes for lithium-ion batteries

Arailym Nurpeissova, Akylbek Adi, Assylzat Aishova, Aliya Mukanova, Sung Soo Kim, Zhumabay Bakenov

Research output: Contribution to journalArticle

Abstract

A three-dimensional (3D) architecture design of the battery electrodes is believed to enhance the energy and power densities of conventional lithium-ion batteries. In this paper, we report a unique 3D architecture anode fabricated by electrodeposition of ultrathin Ni3Sn4 intermetallic alloy onto a commercially available nickel foam current collector from an aqueous electrolyte. Along with 3D nickel foam, planar (2D) copper current collector was also electrodeposited at the same deposition conditions to compare the effect of architecture. The X-ray diffraction results obtained from three-dimensional and planar anode electrodes indicated that the main phase of electrodeposited alloys for both substrates was Ni3Sn4. The designed three-dimensional electrode demonstrated a high discharge capacity of 843,75 mAh g−1 during initial cycles and an improved cycle performance over 100 cycles in contrast with the same alloy electrodeposited onto planar substrate. The high surface area of the electrode and short Li+-ions diffusion paths along with suppression of volume expansion provided by the proposed 3D structure and Ni inactive matrix play a key role in improving the performance of the electrode.

Original languageEnglish
Article number100397
JournalMaterials Today Energy
Volume16
DOIs
Publication statusPublished - Jun 2020

Keywords

  • Electrodeposition
  • Lithium-ion battery
  • NiSn intermetallic alloy
  • Three-dimensional anode

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science (miscellaneous)
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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