RIS ID

127464

Publication Details

Zhang, W., Mao, J., Pang, W., Wang, X. & Guo, Z. (2018). Creating fast ion conducting composites via in-situ introduction of titanium as oxygen getter. Nano Energy, 49 549-554.

Abstract

Metal-ion batteries are promising for large-scale energy storage. Their potential commercialization not only depends on their superior electrochemical performance, but also on the large-scale synthesis cost of electrode materials. In the conventional industrial technology for producing non-oxides, argon protection is required to avoid oxidation, leading to additional costs and extra processing. We demonstrate, without protection gas, that ball milling in air with a small amount of Ti additive can be a cost-effective approach for preparing high-performance alloy anodes. Ti consumes the oxygen, forming TiO 2 ( < 10 nm) in situ with high ionic conductivity, while also preventing oxidation and sustaining the electrical conductivity of carbon. This strategy effectively promotes the rate capability (61% capacity retention from 60 to 3000 mA g −1 ) of SnSb/carbon-nanotube anode (over 204% better than without Ti additive).

Grant Number

ARC/FT150101009, ARC/FT160100251

Grant Number

ARC/DP170102406

Available for download on Thursday, April 30, 2020

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