Issue 1, 2022

Polymer-templated mesoporous lithium titanate microspheres for high-performance lithium batteries

Abstract

The spinel Li4Ti5O12 (LTO) is a promising lithium ion battery anode material with the potential to supplement graphite as an industry standard, but its low electrical conductivity and Li–ion diffusivity need to be overcome. Here, mesoporous LTO microspheres with carbon-coatings were formed by phase separation of a homopolymer from microphase-separated block copolymers of varying molar masses containing sol–gel precursors. Upon heating the composite underwent a sol–gel condensation reaction followed by the eventual pyrolysis of the polymer templates. The optimised mesoporous LTO microspheres demonstrated an excellent electrochemical performance with an excellent specific discharge capacity of 164 mA h g−1, 95% of which was retained after 1000 cycles at a C-rate of 10.

Graphical abstract: Polymer-templated mesoporous lithium titanate microspheres for high-performance lithium batteries

Supplementary files

Article information

Article type
Paper
Submitted
10 Leq 2021
Accepted
01 Xim 2021
First published
02 Xim 2021
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2022,3, 362-372

Polymer-templated mesoporous lithium titanate microspheres for high-performance lithium batteries

M. T. Nguyen, P. Sutton, A. Palumbo, M. G. Fischer, X. Hua, I. Gunkel and U. Steiner, Mater. Adv., 2022, 3, 362 DOI: 10.1039/D1MA00708D

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