Issue 33, 2024

Nickel-doped Li2MoO4 as a high-performance anode material for rechargeable lithium-ion batteries

Abstract

Transition metal oxides are promising anode materials for rechargeable lithium-ion batteries (LIBs) because of their high theoretical specific capacity. Li2MoO4 (LMO) has a high specific capacity due to its variable oxidation state and alloying reaction, but the low conductivity and large volume expansion significantly impede its practical applications. To overcome these challenges, here we propose a nickel-doping strategy to prepare Li2NixMo1−xO4 (LNMO) as an anode of LIBs by doping Li2MoO4 with Ni2+ ions using a sol–gel process. The Ni-doping can not only help minimize the path length for ion and electron transport, thus enhancing electron transmission or conductivity, but also offers a mechanical cushion against volume expansion and contraction amid regular insertion and removal of Li+. As a result, the as-developed LNMO anode exhibits a higher reversible charge/discharge specific capacity than LMO, in addition to excellent cycling stability. The Li2Ni0.05Mo0.95O4 anode exhibits a stable lithium storage capacity of 487.2 mA h g−1, much higher than the 210.9 mA h g−1 for the LMO anode after 100 charge/discharge cycles at a current density of 100 mA g−1. This work offers a facile yet effective approach to creating high-performance Li2MoO4 anode materials, thus promoting their real-world application in rechargeable LIBs.

Graphical abstract: Nickel-doped Li2MoO4 as a high-performance anode material for rechargeable lithium-ion batteries

Transparent peer review

To support increased transparency, we offer authors the option to publish the peer review history alongside their article.

View this article’s peer review history

Article information

Article type
Paper
Submitted
30 5月 2024
Accepted
15 7月 2024
First published
16 7月 2024

J. Mater. Chem. A, 2024,12, 21895-21904

Nickel-doped Li2MoO4 as a high-performance anode material for rechargeable lithium-ion batteries

Y. Cai, H. Huang, W. Bai, L. Sun, Z. Song, Z. Sun, S. Huo and P. Song, J. Mater. Chem. A, 2024, 12, 21895 DOI: 10.1039/D4TA03739A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements