Synthesis and characterization of D-glucose derived nanospheric hard carbon negative electrodes for lithium- and sodium-ion batteries

R. Väli, A. Jänes, T. Thomberg, E. Lust

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The electrochemical performance of glucose-derived hard carbon (GDHC) anode has been evaluated using Li- and Na-salts in ethylene carbonate and propylene carbonate electrolyte mixtures. The LiPF6/EC:PC (1:1) system exhibits high capacity at low current densities (400 mAh g−1 at 25 mA g−1) and also good power characteristics retaining 150 mAh g−1 capacity at 2 A g−1 current density. The best overall performance was achieved with 1 M NaPF6/EC:PC (1:1) electrolyte based system with capacities of 175 mAh g−1 at 0.1 V vs Na/Na+ and 330 mAh g−1 at 1.5 V vs Na/Na+. The electrode has been physically characterized ex-situ using SEM, Raman and TOF-SIMS methods TOF-SIMS analysis revealed that the solid electrolyte interphase is more inorganic on the negative electrode in the Na-cell than on the negative electrode the Li-cell. The positive ion-specific images established by TOF-SIMS analysis show the non-homogeneous distribution of various fragments from the pristine GDHC, which is caused by slightly inhomogeneous mixture of GDHC and conducting carbon black (Super P®) particles.
Original languageEnglish
Pages (from-to)536-544
Number of pages9
JournalElectrochimica Acta
Volume253
DOIs
Publication statusPublished - 1 Nov 2017

Cite this

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title = "Synthesis and characterization of D-glucose derived nanospheric hard carbon negative electrodes for lithium- and sodium-ion batteries",
abstract = "The electrochemical performance of glucose-derived hard carbon (GDHC) anode has been evaluated using Li- and Na-salts in ethylene carbonate and propylene carbonate electrolyte mixtures. The LiPF6/EC:PC (1:1) system exhibits high capacity at low current densities (400 mAh g−1 at 25 mA g−1) and also good power characteristics retaining 150 mAh g−1 capacity at 2 A g−1 current density. The best overall performance was achieved with 1 M NaPF6/EC:PC (1:1) electrolyte based system with capacities of 175 mAh g−1 at 0.1 V vs Na/Na+ and 330 mAh g−1 at 1.5 V vs Na/Na+. The electrode has been physically characterized ex-situ using SEM, Raman and TOF-SIMS methods TOF-SIMS analysis revealed that the solid electrolyte interphase is more inorganic on the negative electrode in the Na-cell than on the negative electrode the Li-cell. The positive ion-specific images established by TOF-SIMS analysis show the non-homogeneous distribution of various fragments from the pristine GDHC, which is caused by slightly inhomogeneous mixture of GDHC and conducting carbon black (Super P{\circledR}) particles.",
keywords = "Nanospheric hard carbon, TOF-SIMS, lithium-ion battery, negative electrode, sodium-ion battery, solid electrolyte interphase",
author = "R. V{\"a}li and A. J{\"a}nes and T. Thomberg and E. Lust",
year = "2017",
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Synthesis and characterization of D-glucose derived nanospheric hard carbon negative electrodes for lithium- and sodium-ion batteries. / Väli, R.; Jänes, A.; Thomberg, T.; Lust, E.

In: Electrochimica Acta, Vol. 253, 01.11.2017, p. 536-544.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

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AU - Väli, R.

AU - Jänes, A.

AU - Thomberg, T.

AU - Lust, E.

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N2 - The electrochemical performance of glucose-derived hard carbon (GDHC) anode has been evaluated using Li- and Na-salts in ethylene carbonate and propylene carbonate electrolyte mixtures. The LiPF6/EC:PC (1:1) system exhibits high capacity at low current densities (400 mAh g−1 at 25 mA g−1) and also good power characteristics retaining 150 mAh g−1 capacity at 2 A g−1 current density. The best overall performance was achieved with 1 M NaPF6/EC:PC (1:1) electrolyte based system with capacities of 175 mAh g−1 at 0.1 V vs Na/Na+ and 330 mAh g−1 at 1.5 V vs Na/Na+. The electrode has been physically characterized ex-situ using SEM, Raman and TOF-SIMS methods TOF-SIMS analysis revealed that the solid electrolyte interphase is more inorganic on the negative electrode in the Na-cell than on the negative electrode the Li-cell. The positive ion-specific images established by TOF-SIMS analysis show the non-homogeneous distribution of various fragments from the pristine GDHC, which is caused by slightly inhomogeneous mixture of GDHC and conducting carbon black (Super P®) particles.

AB - The electrochemical performance of glucose-derived hard carbon (GDHC) anode has been evaluated using Li- and Na-salts in ethylene carbonate and propylene carbonate electrolyte mixtures. The LiPF6/EC:PC (1:1) system exhibits high capacity at low current densities (400 mAh g−1 at 25 mA g−1) and also good power characteristics retaining 150 mAh g−1 capacity at 2 A g−1 current density. The best overall performance was achieved with 1 M NaPF6/EC:PC (1:1) electrolyte based system with capacities of 175 mAh g−1 at 0.1 V vs Na/Na+ and 330 mAh g−1 at 1.5 V vs Na/Na+. The electrode has been physically characterized ex-situ using SEM, Raman and TOF-SIMS methods TOF-SIMS analysis revealed that the solid electrolyte interphase is more inorganic on the negative electrode in the Na-cell than on the negative electrode the Li-cell. The positive ion-specific images established by TOF-SIMS analysis show the non-homogeneous distribution of various fragments from the pristine GDHC, which is caused by slightly inhomogeneous mixture of GDHC and conducting carbon black (Super P®) particles.

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KW - lithium-ion battery

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