Issue 24, 2024

Chemical pre-lithiation of LiMn2O4 balances the low first cycle efficiency of silicon anodes

Abstract

Chemical pre-lithiation is carried out using lithium naphthalene to incorporate excess lithium into lithium manganese spinel (LiMn2O4). Pre-lithiated LiMn2O4 powder is collected and processed under ambient air conditions, demonstrating its seamless integration into current lithium-ion manufacturing. Precise control of the lithiation content in LiMn2O4 allows tuning of the first cycle efficiency, and when demonstrated in a full-cell configuration comprising a silicon anode, can achieve a projected specific energy of ∼216 W h kg−1.

Graphical abstract: Chemical pre-lithiation of LiMn2O4 balances the low first cycle efficiency of silicon anodes

Supplementary files

Article information

Article type
Communication
Submitted
12 Apr 2024
Accepted
28 May 2024
First published
31 May 2024

J. Mater. Chem. A, 2024,12, 14354-14359

Chemical pre-lithiation of LiMn2O4 balances the low first cycle efficiency of silicon anodes

J. S. Ko, B. Tan, M. W. Logan, S. A. Langevin and K. Gerasopoulos, J. Mater. Chem. A, 2024, 12, 14354 DOI: 10.1039/D4TA02544J

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