Vine Shoots-Derived Hard Carbons as Anodes for Sodium-Ion Batteries: Role of Annealing Temperature in Regulating Their Structure and Morphology

Alvira, Darío (Universidad de Zaragoza) ; Antorán, Daniel (Universidad de Zaragoza) ; Vidal, Mariano (Universidad de Zaragoza) ; Sebastian, Victor (Universidad de Zaragoza) ; Manyà, Joan J. (Universidad de Zaragoza)

Resumen: Sodium‐ion batteries (SIBs) are considered one of the most promising large‐scale and low‐cost energy storage systems due to the abundance and low price of sodium. Herein, hard carbons from a sustainable biomass feedstock (vine shoots) were synthesized via a simple two‐step carbonization process at different highest temperatures to be used as anodes in SIBs. The hard carbon produced at 1200 °C delivered the highest reversible capacity (270 mAh g−1 at 0.03 A g−1, with an acceptable initial coulombic efficiency of 71 %) since a suitable balance between the pseudographitic domains growth and the retention of microporosity, defects, and functional groups was achieved. A prominent cycling stability with a capacity retention of 97 % over 315 cycles was also attained. Comprehensive characterization unraveled a three‐stage sodium storage mechanism based on adsorption, intercalation, and filling of pores. A remarkable specific capacity underestimation of up to 38 % was also found when a two‐electrode half‐cell configuration was employed to measure the rate performance. To avoid this systematic error caused by the counter/reference electrode polarization, we strongly recommend the use of a three‐electrode setup or a full‐cell configuration to correctly evaluate the anode response at moderate and high current rates.

Idioma: Inglés

DOI: 10.1002/batt.202300233

Año: 2023

Publicado en: Batteries & supercaps (2023), e202300233 [13 pp.]
ISSN: 2566-6223

Factor impacto JCR: 5.1 (2023)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 130 / 439 = 0.296 (2023) - Q2 - T1
Categ. JCR: ELECTROCHEMISTRY rank: 13 / 45 = 0.289 (2023) - Q2 - T1

Factor impacto CITESCORE: 8.6 - Electrochemistry (Q1) - Energy Engineering and Power Technology (Q1) - Electrical and Electronic Engineering (Q1)

Factor impacto SCIMAGO: 1.438 - Electrical and Electronic Engineering (Q1) - Energy Engineering and Power Technology (Q1) - Electrochemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2021-127847OB-I00
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2029-107737RB-I00

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Ingeniería Mecánica (Dpto. Ingeniería Mecánica)