A high-capacity self-sacrificial additive based on electroactive sodiated carbonyl groups for sodium-ion batteries

Zhang, Zhengna; Zhang, Rui; Rajagopalan, Ranjusha; Tang, Zheng; Sun, Dan; Wang, Haiyan; Tang, Yougen

doi:10.1039/d2cc01812h

Cited by 6 publications

(3 citation statements)

References 39 publications

(42 reference statements)

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“…1a), which is different from conventional sodiation compensation additives with high chemical stability during the process of electrode preparation. 14,21,23 Moreover, in the FTIR spectrum of the fresh TS electrode, the adsorption peaks at 1413 cm −1 , 878 cm −1 and 697 cm −1 are indexed to asymmetrical stretching vibration (y as ), out-of-plane bending vibration (g) and in-plane bending vibration (b) of CO 3 2− , respectively (Fig. 1b).…”

Section: Resultsmentioning

confidence: 99%

A multifunctional cathode sodiation additive for high-performance sodium-ion batteries

et al. 2022

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Section: Resultsmentioning

confidence: 99%

A multifunctional cathode sodiation additive for high-performance sodium-ion batteries

et al. 2022

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“…NaN 3 is highly toxic and explosive, hindering its practical application. Niu et al [63] then proposed an efficient cathodic sodium supplement agent, Na 2 C 2 O 4 [Figure 9A], which had a high theoretical capacity of 400 mAh g -1 and could achieve a high capacity utilization of 99% [Figure 9B], which outperformed Na 2 CO 3 [181] , Na 2 NiO 2 [57] , and Na 2 C 4 O 4 [182] with ratios of 20%, 22%, and 70%, respectively. Furthermore, the oxidation overpotential (2.44 V) of NaC 2 O 4 could be reduced using a conductive additive with a high specific surface area.…”

Section: Sodium Compensationmentioning

confidence: 99%

Na-deficient P2-type layered oxide cathodes for practical sodium-ion batteries

Huang,

Zeng,

et al. 2024

Microstructures

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Sodium-ion batteries (SIBs) have attracted enormous attention as candidates in stationary energy storage systems, because of the decent electrochemical performance based on cheap and abundant Na-ion intercalation chemistry. Layered oxides, the workhorses of modern lithium-ion batteries, have regained interest for replicating their success in enabling SIBs. A unique feature of sodium layered oxides is their ability to crystallize into a thermodynamically stable P2-type layered structure with under-stoichiometric Na content. This structure provides highly open trigonal prismatic environments for Na ions, permitting high Na+ mobility and excellent structural stability. This review delves into the intrinsic characteristics and key challenges faced by P2-type cathodes and then comprehensively summarizes the up-to-date advances in modification strategies from compositional design, elemental doping, phase mixing, morphological control, and surface modification to sodium compensation. The updated understanding presented in this review is anticipated to guide and expedite the development of P2-type layered oxide cathodes for practical SIB applications.

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“…and with instrumentation capable of controlling the delivery systems [9]. Such delivery systems can be easily miniaturized, and controlled/powered remotely [9,10], or indeed using sacrificial power sources [11], in various materials morphologies [12]. Polypyrrole (PPy) is one of the most widely investigated conducting polymers applied to drug delivery matrices due to its biocompatibility, low voltage actuation and ease of synthesis [13].…”

Section: Introductionmentioning

confidence: 99%

Electrochemically Enhanced Delivery of Pemetrexed from Electroactive Hydrogels

et al. 2022

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Electroactive hydrogels based on derivatives of polyethyleneglycol (PEG), chitosan and polypyrrole were prepared via a combination of photopolymerization and oxidative chemical polymerization, and optionally doped with anions (e.g., lignin, drugs, etc.). The products were analyzed with a variety of techniques, including: FT-IR, UV-Vis, 1H NMR (solution state), 13C NMR (solid state), XRD, TGA, SEM, swelling ratios and rheology. The conductive gels swell ca. 8 times less than the non-conductive gels due to the presence of the interpenetrating network (IPN) of polypyrrole and lignin. A rheological study showed that the non-conductive gels are soft (G′ 0.35 kPa, G″ 0.02 kPa) with properties analogous to brain tissue, whereas the conductive gels are significantly stronger (G′ 30 kPa, G″ 19 kPa) analogous to breast tissue due to the presence of the IPN of polypyrrole and lignin. The potential of these biomaterials to be used for biomedical applications was validated in vitro by cell culture studies (assessing adhesion and proliferation of fibroblasts) and drug delivery studies (electrochemically loading the FDA-approved chemotherapeutic pemetrexed and measuring passive and stimulated release); indeed, the application of electrical stimulus enhanced the release of PEM from gels by ca. 10–15% relative to the passive release control experiment for each application of electrical stimulation over a short period analogous to the duration of stimulation applied for electrochemotherapy. It is foreseeable that such materials could be integrated in electrochemotherapeutic medical devices, e.g., electrode arrays or plates currently used in the clinic.

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A high-capacity self-sacrificial additive based on electroactive sodiated carbonyl groups for sodium-ion batteries

Abstract: A new type of high-capacity sacrificial additive (Na4C6O6) is proposed to replenish the sodium loss in sodium ion full-cells. The CH//Na3V2(PO4)2F3 full-cells demonstrate significantly enhanced energy density after introducing an appropriate amount of additive.

Cited by 6 publications

References 39 publications

A multifunctional cathode sodiation additive for high-performance sodium-ion batteries

A multifunctional cathode sodiation additive for high-performance sodium-ion batteries

Na-deficient P2-type layered oxide cathodes for practical sodium-ion batteries

Electrochemically Enhanced Delivery of Pemetrexed from Electroactive Hydrogels

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