Synthesis and Characterization of ZnO from Thermal Decomposition of Precipitated Zinc Oxalate Dihydrate as an Anode Material of Li-Ion Batteries

Cornelius Satria Yudha, Anjas Prasetya Hutama, Mintarsih Rahmawati, Hendri Widiyandari, Hartoto Nursukatmo, Hanida Nilasary, Haryo Satriya Oktaviano and Agus Purwanto
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Cornelius Satria Yudha: Centre of Excellence for Electrical Energy Storage Technology, Universitas Sebelas Maret, Jl. Slamet Riyadi 435, Surakarta 57146, Indonesia
Anjas Prasetya Hutama: Centre of Excellence for Electrical Energy Storage Technology, Universitas Sebelas Maret, Jl. Slamet Riyadi 435, Surakarta 57146, Indonesia
Mintarsih Rahmawati: Centre of Excellence for Electrical Energy Storage Technology, Universitas Sebelas Maret, Jl. Slamet Riyadi 435, Surakarta 57146, Indonesia
Hendri Widiyandari: Centre of Excellence for Electrical Energy Storage Technology, Universitas Sebelas Maret, Jl. Slamet Riyadi 435, Surakarta 57146, Indonesia
Hartoto Nursukatmo: Downstream Research and Technology Innovation, Innovation and New Ventures, PT Pertamina (Persero), Jl. Mega Kuningan Barat III, Jakarta Selatan 12950, Indonesia
Hanida Nilasary: Downstream Research and Technology Innovation, Innovation and New Ventures, PT Pertamina (Persero), Jl. Mega Kuningan Barat III, Jakarta Selatan 12950, Indonesia
Haryo Satriya Oktaviano: Downstream Research and Technology Innovation, Innovation and New Ventures, PT Pertamina (Persero), Jl. Mega Kuningan Barat III, Jakarta Selatan 12950, Indonesia
Agus Purwanto: Centre of Excellence for Electrical Energy Storage Technology, Universitas Sebelas Maret, Jl. Slamet Riyadi 435, Surakarta 57146, Indonesia

Energies, 2021, vol. 14, issue 18, 1-13

Abstract: Zinc oxide (ZnO) is one of the most promising materials applied in Li-ion batteries. In this research, ZnO was synthesized by the thermal decomposition of zinc oxalate dihydrate. This precursor was obtained from the precipitation process of zinc sulfate with oxalic acid. In-depth studies were carried out on the effect of various heating temperatures of zinc oxalate dihydrate precursors on ZnO synthesis. The as-prepared materials were characterized by XRD, SEM, and FTIR. Based on the XRD analysis, the presence of the ZnO-wurtzite phase can be confirmed in samples heated at temperatures above 400 °C. Meanwhile, SEM-EDX results showed that the ZnO particles have a micron size. Cells with ZnO samples as anodes have low columbic efficiency. In contrast, cells with ZnO/Graphite composite anodes have a relatively large capacity compared to pure graphite anodes. Overall, based on the consideration of the characterization results and electrochemical performance, the optimal sintering temperature to obtain ZnO is 600 °C with a cell discharge capacity of ZnO anode and in the form of graphite composites is 356 mAh/g and 450 mAh/g, respectively. This suggests that ZnO can be used as an anode material and an additive component to improve commercial graphite anodes’ electrochemical performance.

Keywords: Li-ion battery; ZnO; anode; precipitation; sintering (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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