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http://hdl.handle.net/1942/35493
Title: | Fracture-induced aging anomalies in LiNi0.6Mn0.2Co0.2O2 electrodes | Authors: | YARI, Saeed D'HAEN, Jan VAN BAEL, Marlies HARDY, An SAFARI, Momo |
Issue Date: | 2021 | Publisher: | ELSEVIER SCIENCE INC | Source: | ELECTROCHEMISTRY COMMUNICATIONS, 132 (Art N° 107134) | Abstract: | The gradual loss of capacity and increase in the cell impedance are the mainstream of aging patterns for the lithium-ion batteries and mainly result from the depletion of cell's cyclable-lithium reservoir. The irreversible drain from this reservoir is well understood and originates from the phenomena such as electrolyte oxidation and reduction at the electrode/electrolyte interfaces. There is, however, limited knowledge about the circumstances leading to the recuperation of misplaced lithium, gain in cell's energy, and impedance drop. Here, we showcase that the intragranular fracture induces a peculiar aging behavior in the LiNi 0.6 Mn 0.2 Co 0.2 O 2 electrodes. Fracture enables an alternative path for the (de)insertion of lithium from the hard-to-reach center of the secondary particles by lithium pore-wall flux instead of solid-state diffusion. The possible consequences are the energy recovery and decrease of the charge-transfer resistance in the electronically well wired electrodes. | Keywords: | Porous electrode;Aging;Lithium redistribution;Fracture | Document URI: | http://hdl.handle.net/1942/35493 | ISSN: | 1388-2481 | e-ISSN: | 1873-1902 | DOI: | 10.1016/j.elecom.2021.107134 | ISI #: | 000709699300003 | Rights: | 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
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1-s2.0-S1388248121002186-main.pdf | Published version | 3.47 MB | Adobe PDF | View/Open |
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