Issue 17, 2023

Li2ZnTi3O8 anode: design from material to electrode and devices

Abstract

Spinel Li2ZnTi3O8, as a zero volumetric change material, is a promising anode for electrochemical energy storage devices. Compared with commercial graphite, Li2ZnTi3O8 provides high operating potentials of 0.5 and 1 V, offering high safety. Compared with commercial Li4Ti5O12, Li2ZnTi3O8 possesses relatively large theoretical specific capacity of 229 mA h g−1 and low synthesis cost. However, Li2ZnTi3O8 suffers low electronic conductivity, resulting in poor electrochemical performance. A material modification process is a common strategy to overcome the issue of Li2ZnTi3O8 and has been mainly focused on in previous reviews. The investigations and achievements are rarely summarized for research on subsequent processes after a material modification process, such as electrode and device designs. In this review, the designs from material to electrode and device are completely reviewed. The design schemes mainly include (1) modifying the surface, doping by heterogeneous ions, and shortening the diffusion distance of Li+ ions by designing nanostructure or porous structure on the material level, (2) optimizing binder and Cu current collector and designing flexible electrode structure on the electrode level, and (3) rational construction of lithium-ion full cells and lithium-ion capacitors on the device level. It is believed that rational designs can ensure superior performance for Li2ZnTi3O8-based energy storage and conversion devices. In addition, the work sums up theoretical studies on the basic structure and electronic properties via the first principles calculations and mechanism of capacity-rising of Li2ZnTi3O8 upon cycling, which will provide much comprehensive knowledge and understanding of Li2ZnTi3O8.

Graphical abstract: Li2ZnTi3O8 anode: design from material to electrode and devices

Article information

Article type
Review Article
Submitted
19 ⵎⴰⵢ 2023
Accepted
11 ⵢⵓⵍ 2023
First published
12 ⵢⵓⵍ 2023

Inorg. Chem. Front., 2023,10, 4943-4980

Li2ZnTi3O8 anode: design from material to electrode and devices

H. Liu, X. Zhang, H. Xu, W. Ma, L. Wang, Z. Meng and F. Wang, Inorg. Chem. Front., 2023, 10, 4943 DOI: 10.1039/D3QI00934C

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