A high voltage honeycomb layered cathode framework for rechargeable potassium-ion battery: P2-type K2/3Ni1/3Co1/3Te1/3O2Electronic supplementary information (ESI) available: Structural and morphological characterisations. See DOI: 10.1039/c8cc07239f

The designing of high voltage cathode materials is critical for the advancement of potassium-ion (K-ion) battery. Herein, we present a new honeycomb framework P2-type K 2/3 Ni 1/3 Co 1/3 Te 1/3 O 2 (or equivalently written as K 2 NiCoTeO 6 ) which exhibits the highest voltage on record (beyond 4 V v...

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Main Authors: Masese, Titus, Yoshii, Kazuki, Kato, Minami, Kubota, Keigo, Huang, Zhen-Dong, Senoh, Hiroshi, Shikano, Masahiro
Format: Article
Language:English
Online Access:Get full text
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Summary:The designing of high voltage cathode materials is critical for the advancement of potassium-ion (K-ion) battery. Herein, we present a new honeycomb framework P2-type K 2/3 Ni 1/3 Co 1/3 Te 1/3 O 2 (or equivalently written as K 2 NiCoTeO 6 ) which exhibits the highest voltage on record (beyond 4 V versus K + /K) for layered cathode materials. This work will allow for the further development of, particularly, high voltage layered cathodes for K-ion battery. A new layered framework K 2 NiCoTeO 6 (K 2/3 Ni 1/3 Co 1/3 Te 1/3 O 2 ) exhibits high voltage (∼4.3 V vs. K + /K), by far exceeding the performance of hitherto reported layered cathode materials for potassium-ion battery.
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc07239f