BANDUNG, ftmd.itb.ac.id – Bagas Prakoso (NIM 33724001), a doctoral student in the Materials Science and Engineering Doctoral Program at the Faculty of Mechanical and Aerospace Engineering (FTMD) Institut Teknologi Bandung (ITB), has developed an innovative current collector to enhance the performance of anode-free lithium metal batteries. The research was conducted alongside advisors Afriyanti Sumboja, Ph.D., and Febri Baskoro, Ph.D., and was published in the international journal Chemical Engineering Journal in 2026.

Bagas Prakoso
Afriyanti Sumboja, Ph.D.
Febri Baskoro, S.Pd., M.Sc., Ph.D.

The development of anode-free lithium metal batteries offers high energy density potential. However, this technology still faces critical challenges, including uneven lithium deposition and dendrite formation, which impair battery performance and overall lifespan.

To address these hurdles, the research team developed a three-dimensional (3D) current collector composed of a polyacrylonitrile (PAN) and barium titanate (BaTiO₃) composite fabricated via electrospinning. PAN facilitates uniform initial lithium deposition, while BaTiO₃ enhances the material’s dielectric properties to regulate electric field distribution and control lithium plating. Additionally, the 3D microfiber network structure provides a larger interfacial area and sufficient space to accommodate lithium deposition.

Experimental results demonstrated that adding 5% BaTiO₃ achieved optimal performance. In half-cell testing, the current collector maintained stable lithium plating and stripping for approximately 702 hours. Meanwhile, full-cell battery testing yielded an initial capacity of 152 mAh g⁻¹ and retained 46% of its initial capacity after 100 charge-discharge cycles.

Scanning Electron Microscopy (SEM) and optical microscopy observations revealed denser, more uniform lithium deposition alongside the suppression of dendrite growth. These findings highlight the potential of PAN- and BaTiO₃-based current collectors to support next-generation battery technologies, particularly high-capacity energy storage systems.

Research Funding and Educational Impact

This research was funded by the Indonesia Endowment Fund for Education Agency (LPDP) under the Ministry of Higher Education, Science, and Technology of the Republic of Indonesia, managed through the Equity Program.

The development of this current collector is expected to serve as an effective approach to improving the stability and efficiency of anode-free lithium metal batteries. Furthermore, the outcomes are anticipated to contribute to the advancement of more efficient and sustainable energy storage technologies.

Through this study, FTMD ITB reinforces its commitment to strengthening research and innovation activities while enhancing doctoral educational quality. The academic achievements of doctoral students are expected to enrich scientific contributions, expand international collaborations, and elevate FTMD ITB’s role in advancing technology to solve future challenges.

Scientific Publication Details:

  • Title: Dielectric-enhanced lithiophilic polyacrylonitrile-barium titanate 3D microfiber current collector for controlled lithium deposition in anode-free lithium metal batteries
  • Authors: Bagas Prakoso, Aldan Hadziq Haidar, Ruth Stephanie, Muhammad Harist Herti Ramadhani, Hung-Ju Yen, Febri Baskoro, Tae Jung Park, dan Afriyanti Sumboja.
  • Journal: Chemical Engineering Journal
  • Years: 2026
  • DOI: https://doi.org/10.1016/j.cej.2026.181397
  • Promotor Team: Afriyanti Sumboja, Ph.D. dan Febri Baskoro, Ph.D.
  • Funding: LPDP through the Equity Program.

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