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Rational Design of Preintercalated Electrodes for Rechargeable Batteries

Yao, X H; Zhao, Y L; Castro, F A; Mai, L Q (2019) Rational Design of Preintercalated Electrodes for Rechargeable Batteries. ACS Energy Letters, 4 (3). pp. 771-778. ISSN 2380-8195

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Rational design of the morphologies and complementary compounding of electrode materials have contributed substantially to improving battery performance, yet the capabilities of conventional electrode materials have remained limited in some key parameters including energy and power density, cycling stability etc., because of their intrinsic properties, especially the crystal structures induced inherent slow diffusion dynamics induced by the crystal structures and the restricted thermodynamics of reactions. In contrast, pre-intercalation of ions or molecules into the crystal structure with/without further lattice reconstruction could provide ab initio optimizations to overcome these intrinsic limitations. In this perspective, we discuss the fundamental optimization mechanisms of pre-intercalation in improving electronic conductivity and ionic diffusion, inhibiting 'lattice breathing' and screening the carriers charge. We also summarize the current challenges in pre-intercalation and offer insights on future opportunities for rational design of pre-intercalation electrodes in next-generation rechargeable batteries.

Item Type: Article
Subjects: Advanced Materials > Functional Materials
Divisions: Engineering, Materials & Electrical Science
Identification number/DOI: 10.1021/acsenergylett.8b02555
Last Modified: 23 Apr 2019 14:47
URI: http://eprintspublications.npl.co.uk/id/eprint/8363

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