Amorphous Zn₂GeO₄ Nanoparticles as Anodes with High Reversible Capacity and Long Cycling Life for Li-ion Batteries

Journal Article · Tue Jul 30 00:00:00 EDT 2013 · Nano Energy

DOI:https://doi.org/10.1016/j.nanoen.2012.12.001· OSTI ID:1167654

Yi, Ran ^[1]; Feng, Jinkui ^[1]; Lv, Dongping ^[1]; Gordin, Mikhail ^[1]; Chen, Shuru ^[1]; Choi, Daiwon ^[2]; Wang, Donghai ^[1]

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1. Penn State Univ., State College, PA (United States)
2. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Amorphous and crystalline Zn₂GeO₄ nanoparticles were prepared and characterized as anode materials for Li-ion batteries. A higher reversible specific capacity of 1250 mAh/g after 500 cycles and excellent rate capability were obtained for amorphous Zn₂GeO₄ nanoparticles, compared to that of crystalline Zn₂GeO₄ nanoparticles. Small particle size, amorphous phase and incorporation of zinc and oxygen contribute synergetically to the improved performance by effectively mitigating the huge volume variations during lithiation and delithiation process.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1167654
• Report Number(s): PNNL-SA--93003; TE1400000
• Journal Information: Nano Energy, Journal Name: Nano Energy Journal Issue: 4 Vol. 2; ISSN 2211-2855
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ANODES
Amorphous
Lithium-ion batteries
NANOPARTICLES
Zinc germanate