Unlocking high capacities of graphite anodes for potassium-ion batteries.
Journal
RSC advances
ISSN: 2046-2069
Titre abrégé: RSC Adv
Pays: England
ID NLM: 101581657
Informations de publication
Date de publication:
01 Jul 2019
01 Jul 2019
Historique:
received:
13
03
2019
accepted:
28
06
2019
entrez:
6
5
2022
pubmed:
5
7
2019
medline:
5
7
2019
Statut:
epublish
Résumé
Graphite is considered a promising candidate as the anode for potassium-ion batteries (KIBs). Here, we demonstrate a significant improvement in performance through the ball-milling of graphite. Electrochemical techniques show reversible K-intercalation into graphitic layers, with 65% capacity retention after 100 cycles from initial capacities and extended cycling beyond 200 cycles. Such an affinity of the graphite towards storage of K-ions is explained by means of SEM and Raman analyses. Graphite ball-milling results in a gentle mechanical exfoliation of the graphene layers and simultaneous defect formation, leading to enhanced electrochemical performance.
Identifiants
pubmed: 35515520
doi: 10.1039/c9ra01931f
pii: c9ra01931f
pmc: PMC9065985
doi:
Types de publication
Journal Article
Langues
eng
Pagination
21070-21074Informations de copyright
This journal is © The Royal Society of Chemistry.
Déclaration de conflit d'intérêts
There are no conflicts to declare.
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