Room temperature all-solid-state lithium batteries based on a soluble organic cage ionic conductor



Li, Jing, Qi, Jizhen, Jin, Feng, Zhang, Fengrui, Zheng, Lei, Tang, Lingfei, Huang, Rong, Xu, Jingjing, Chen, Hongwei, Liu, Ming
et al (show 4 more authors) (2022) Room temperature all-solid-state lithium batteries based on a soluble organic cage ionic conductor. NATURE COMMUNICATIONS, 13 (1). 2031-.

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Abstract

All solid-state lithium batteries (SSLBs) are poised to have higher energy density and better safety than current liquid-based Li-ion batteries, but a central requirement is effective ionic conduction pathways throughout the entire cell. Here we develop a catholyte based on an emerging class of porous materials, porous organic cages (POCs). A key feature of these Li<sup>+</sup> conducting POCs is their solution-processibility. They can be dissolved in a cathode slurry, which allows the fabrication of solid-state cathodes using the conventional slurry coating method. These Li<sup>+</sup> conducting cages recrystallize and grow on the surface of the cathode particles during the coating process and are therefore dispersed uniformly in the slurry-coated cathodes to form a highly effective ion-conducting network. This catholyte is shown to be compatible with cathode active materials such as LiFePO<sub>4</sub>, LiCoO<sub>2</sub> and LiNi<sub>0.5</sub>Co<sub>0.2</sub>Mn<sub>0.3</sub>O<sub>2</sub>, and results in SSLBs with decent electrochemical performance at room temperature.

Item Type: Article
Uncontrolled Keywords: 40 Engineering, 4016 Materials Engineering, 34 Chemical Sciences, 3406 Physical Chemistry
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 09 May 2022 14:05
Last Modified: 22 Jun 2024 15:16
DOI: 10.1038/s41467-022-29743-1
Open Access URL: https://www.nature.com/articles/s41467-022-29743-1
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3154500