Long-lived electrodes for plastic batteries

Lee, Byungju; Kang, Kisuk

doi:10.1038/549339a

Cited by 14 publications

(12 citation statements)

References 13 publications

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“…[1][2][3] To satisfy the blooming development of these devices, lower-cost, higher energy density, much long-lasting rechargeable batteries are in high demand for next-generation energy storage systems. [1][2][3] To satisfy the blooming development of these devices, lower-cost, higher energy density, much long-lasting rechargeable batteries are in high demand for next-generation energy storage systems.…”

Section: Introductionmentioning

confidence: 99%

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Controllable Chain‐Length for Covalent Sulfur–Carbon Materials Enabling Stable and High‐Capacity Sodium Storage

Jing

Yang

et al. 2019

Advanced Energy Materials

155

120

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couple high-capacity sulfur positive electrodes with earth-abundant sodium negative electrodes are unsurprisingly considered as a promising candidate. [8][9][10][11] In the process of cycle, the elemental sulfur of the cathode is dissolvated, reduced to form various soluble polysulfides, that is, S x 2− ions and radicals (1 ≤ x ≤ 8), and eventually the insoluble Na 2 S 2 and Na 2 S. [8,10,12] However, the practical applications are seriously hindered by several obstacles, in which the fundamental challenges are originated from the insulating properties of elemental sulfur and sodium sulfides, the volume changes at the cathode on cycling and the dissolution of sodium poly sulfides in the electrolyte. [9,[13][14][15] To date, extensive efforts have been made toward the enhancement of RT-Na/S batteries, including Na 2 S cathodes, [16,17] carbonaceous buffer matrixes, [12,18,19] a class of sodium polysulfides, [20,21] and the functional carbon-coated Nafion separator. [22] These approaches, while are validated to improve the cyclability of the RT Na-S batteries, tend to result in complicated synthetic processes and decreased theoretical capacity. In addition, it was suggested that the polar-polar interaction is a strong chemical interaction between polar sodium polysulfides and polar host materials. [23,24] Although there is no universal conclusion on the exact configuration of the interactions due to the complexity of carbon matrix, their similar effect in suppressing the polysulfide shuttle has also been reported in Li-S battery systems. [25][26][27] Instead of relying on polar-polar interactions, the suitably tailored hosts can bind sodium polysulfides through metal-sulfur bonding. Examples of such materials are sub-stoichiometric metal chalcogenides, MXene phases and metal-organic frameworks (MOFs). [28][29][30][31] In practice, these oxide and sulfide materials are able to bridge sodium polysulfides through both polar-polar Na-S(O) interaction and Lewis acid-base bonding, depending on the exposed facets to some extent. [25,32] However, to simply increase metal and/or binder content only neutralizes the advantageous energy density of the overall cell. Moreover, most of the sulfur-carbon electrode materials are directly prepared using elemental S and various carbon matrixes as started materials through vapor-infiltration or meltinfusion method. [8,10] As a result, the aggregated particles are Room temperature sodium-sulfur batteries have emerged as promising candidate for application in energy storage. However, the electrodes are usually obtained through infusing elemental sulfur into various carbon sources, and the precipitation of insoluble and irreversible sulfide species on the surface of carbon and sodium readily leads to continuous capacity degradation. Here, a novel strategy is demonstrated to prepare a covalent sulfur-carbon complex (SC-BDSA) with high covalent-sulfur concentration (40.1%) that relies on SO 3 H (Benzenedisulfonic acid, BDSA) and SO 4 2− as the sulfur source rather than elemental sulfur. M...

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Section: Introductionmentioning

confidence: 99%

“…Rechargeable battery systems are a vital part in electric vehicles, smart energy grids and renewable energies . To satisfy the blooming development of these devices, lower‐cost, higher energy density, much long‐lasting rechargeable batteries are in high demand for next‐generation energy storage systems .…”

Section: Introductionmentioning

confidence: 99%

Controllable Chain‐Length for Covalent Sulfur–Carbon Materials Enabling Stable and High‐Capacity Sodium Storage

Jing

Yang

et al. 2019

Advanced Energy Materials

155

120

View full text Add to dashboard Cite

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“…Energy depletion and environmental pollution have seriously restricted economic development. The current energy storage and power problems that need to be solved include a higher energy density, a higher power density, a longer cycle life, and a lower self‐discharge rate of chemical power supplies . However, the commercialization of inorganic electrode materials is limited by the capacity density and energy density, and battery systems containing Fe 3 O 4 , LiFePO 4 , LiCoO 2 , LiMn 2 O 4 , Li 4 Ti 5 O 12 , and organic electrochemically active molecules as electrode materials have been rapidly developed .…”

Section: Introductionmentioning

confidence: 99%

Molecular Design Strategies for Electrochemical Behavior of Aromatic Carbonyl Compounds in Organic and Aqueous Electrolytes

et al. 2019

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To sustainably satisfy the growing demand for energy, organic carbonyl compounds (OCCs) are being widely studied as electrode active materials for batteries owing to their high capacity, flexible structure, low cost, environmental friendliness, renewability, and universal applicability. However, their high solubility in electrolytes, limited active sites, and low conductivity are obstacles in increasing their usage. Here, the nucleophilic addition reaction of aromatic carbonyl compounds (ACCs) is first used to explain the electrochemical behavior of carbonyl compounds during charge–discharge, and the relationship of the molecular structure and electrochemical properties of ACCs are discussed. Strategies for molecular structure modifications to improve the performance of ACCs, i.e., the capacity density, cycle life, rate performance, and voltage of the discharge platform, are also elaborated. ACCs, as electrode active materials in aqueous solutions, will become a future research hotspot. ACCs will inevitably become sustainable green materials for batteries with high capacity density and high power density.

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“…On one hand, the application of phenothiazine‐containing redox polymers as cathode materials has increased in the last decade as they provide fast oxidation–reduction processes along with a high redox potential (3.5 V vs. Li/Li + ) . Several polymers containing the phenothiazine moiety either in the backbone or as pendant group in the polymer have been investigated as cathode materials for Li/organic batteries .…”

Section: Introductionmentioning

confidence: 99%

Symmetric All‐Organic Battery Containing a Dual Redox‐Active Polymer as Cathode and Anode Material

et al. 2019

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Figure 2. Electrochemicalcharacterizationofp henothiazine-naphthalene homopolymer PI1. a) Illustrationoft he Li/polyimide batteries. b) CV at as can rate of 0.1 mV s À1 .c )Redoxm echanism of phenothiazine-naphthalenep olyimides.Figure 3. Rate stability of polyimide/Li cells.a )Specific discharge capacities at different current densities. b) Corresponding voltagep rofilesa t50, 200, and 800 mA g À1 current densities.

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Long-lived electrodes for plastic batteries

Cited by 14 publications

References 13 publications

Controllable Chain‐Length for Covalent Sulfur–Carbon Materials Enabling Stable and High‐Capacity Sodium Storage

Controllable Chain‐Length for Covalent Sulfur–Carbon Materials Enabling Stable and High‐Capacity Sodium Storage

Molecular Design Strategies for Electrochemical Behavior of Aromatic Carbonyl Compounds in Organic and Aqueous Electrolytes

Symmetric All‐Organic Battery Containing a Dual Redox‐Active Polymer as Cathode and Anode Material

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