The impact of nanomaterials on Li-ion rechargeable batteries

Authors

Hua-Kun Liu, University of WollongongFollow
Jiazhao Wang, University of WollongongFollow
Guoxiu Wang, University of WollongongFollow
Zaiping Guo, University of WollongongFollow
Konstantin K. Konstantinov, University of WollongongFollow

RIS ID

21784

Publication Details

Liu, H. K., Wang, G., Guo, Z., Wang, J. & Konstantinov, K. K. (2007). The impact of nanomaterials on Li-ion rechargeable batteries. Journal of New Materials for Electrochemical Systems, 10 (2), 101-104.

Abstract

Abstract: In this paper we report on the impact of nanomaterials on lithium rechargeable battery performances. Nanotubes (single wall carbon nanotube and multi wall carbon nanotube, NiO and WS2), nano-intermetallic alloys (Cu6Sn5, Sn/SnSb and Sn/SnNi), nano-oxides (NiO, CoO, SnO2 and Co3O4), nano-composites (C-LiFePO4, Si-C, Si-MCMB (mesocarbon microbeads), Si-TiC, Si-PPY (polypyrrole) and MWNT(multiwalled nanotubes)/Sn/SnNi), as well as other nanoparticles (TiO2, SiO2, and Al2O3) have been used in lithium rechargeable batteries in our studies. "Free-standing" single wall carbon nanotube (SWNT) papers produced without an), binder and metal substrate shows a capacity slightly lower than that of the conventional electrode. Carbon-coated Si nanocomposites produced by a spray-pyrolysis technique can reversibly store lithium with a high capacity of 1489 mAh/g and a high coulumbic efficiency above 99.5%, even after 20 cycles. Nanosize 10 wt% TiO2 increased the ionic conductivity of PEO-LiClO4 polymer electrolyte by a factor of 2 at room temperature and at elevated temperature.