Low temperature synthesis of lead germanate (PbGeO{sub 3})/polypyrrole (PPy) nanocomposites and their lithium storage performance

Journal Article · Mon Sep 15 04:00:00 EDT 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.06.011· OSTI ID:22420562

Feng, Jinkui ^[1]; Ci, Lijie; Qi, Yongxin; Lun, Ning ^[1]; Xiong, Shenglin; Qian, Yitai ^[2]

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1. Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061 (China)
2. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (China)

Highlights: • PbGeO{sub 3}/PPy nanocomposites are successfully fabricated for the first time. • PbGeO{sub 3} nanowire and PbGeO{sub 3}/PPy nanocomposites were characterized as anode materials in lithium ion batteries for the first time. • PPy coating can improve the electrochemical performance of PbGeO{sub 3} by increasing the electronic conductivity and buffering the volume changes during cycling. • The PbGeO{sub 3}/PPy nanocomposites deliver a capacity of 662 mA h g{sup −1} after 50 cycles. - Abstract: PGO/PPy nanocomposites were prepared via a low temperature chemical coating method for the first time. Electrochemical measurements demonstrate that the PbGeO{sub 3} electrodes retain a capacity of 657 mA h g{sup −1} after 100 cycles and possess excellent rate capability indicating that the PGO/PPy nanocomposites could be used as a candidate as high-capacity anode for lithium batteries.

• OSTI ID: 22420562
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 57; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANODES
CAPACITY
CHEMICAL COATING
ELECTROCHEMISTRY
GERMANATES
LEAD COMPOUNDS
LITHIUM
LITHIUM ION BATTERIES
LITHIUM IONS
NANOCOMPOSITES
ORGANIC POLYMERS
PERFORMANCE
PYRROLES
SYNTHESIS
TEMPERATURE DEPENDENCE