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

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.
Authors:
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Publication Date:
OSTI Identifier:
1167654
Report Number(s):
PNNL-SA--93003
Journal ID: ISSN 2211-2855; TE1400000
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nano Energy; Journal Volume: 2; Journal Issue: 4
Publisher:
Elsevier
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE Amorphous; Zinc germanate; Lithium-ion batteries; NANOPARTICLES; ANODES