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Journal ArticleDOI

Polymeric Schiff Bases as Low‐Voltage Redox Centers for Sodium‐Ion Batteries

Elizabeth Castillo-Martínez, +2 more
- 19 May 2014 - 
- Vol. 53, Iss: 21, pp 5341-5345
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TLDR
Electroactive polymeric Schiff bases were produced by reaction between non-conjugated aliphatic or conjugated aromatic diamine block with terephthalaldehyde unit, able to electrochemically store more than one sodium atom per azomethine group.
Abstract
The redox entity comprising two Schiff base groups attached to a phenyl ring (NCHArHCN) is reported to be active for sodium-ion storage (Ar=aromatic group) Electroactive polymeric Schiff bases were produced by reaction between non-conjugated aliphatic or conjugated aromatic diamine block with terephthalaldehyde unit Crystalline polymeric Schiff bases are able to electrochemically store more than one sodium atom per azomethine group at potentials between 0 and 15 V versus Na+/Na The redox potential can be tuned through conjugation of the polymeric chain and by electron injection from donor substituents in the aromatic rings Reversible capacities of up to 350 mA h g−1 are achieved when the carbon mixture is optimized with Ketjen Black Interestingly, the “reverse” configuration (CHNArNHC) is not electrochemically active, though isoelectronic

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Citations
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Journal ArticleDOI

Sodium-ion batteries: present and future

TL;DR: Current research on materials is summarized and discussed and future directions for SIBs are proposed to provide important insights into scientific and practical issues in the development of S IBs.
Journal ArticleDOI

Recent Progress in Electrode Materials for Sodium-Ion Batteries

TL;DR: In this paper, a review of recent progress on electrode materials for NIBs, including the discovery of new electrode materials and their Na storage mechanisms, is briefly reviewed, and efforts to enhance the electrochemical properties of NIB electrode materials as well as the challenges and perspectives involving these materials are discussed.
Journal ArticleDOI

Electrolyte design strategies and research progress for room-temperature sodium-ion batteries

TL;DR: In this article, a review of electrolyte design strategies for various materials systems as well as functional applications is presented, where the discussion is divided into three electrolyte types: liquid, solid state, and gel state.
Journal ArticleDOI

Opportunities and Challenges for Organic Electrodes in Electrochemical Energy Storage.

TL;DR: This review provides a comprehensive overview of all reported cell configurations that involve electroactive organic compounds working either in the solid state or in solution for aqueous or nonaqueous electrolytes and highlights the most promising systems based on such various chemistries.
References
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TL;DR: This review offers details of the technologies, in terms of needs, status, challenges and future R&d directions, that are expected to integrate significant levels of renewables into the electrical grid.
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Towards sustainable and versatile energy storage devices: an overview of organic electrode materials

TL;DR: In this paper, an overview of organic electrode materials, including their fundamental knowledge, development history and perspective applications, is provided. And the authors elaborate in detail various organics with different structures, including conducting polymers, organodisulfides, thioethers, nitroxyl radical polymers and conjugated carbonyl compounds.
Journal ArticleDOI

Update on Na-based battery materials. A growing research path

TL;DR: In this paper, the feasibility of two novel energy storage systems: Na-aqueous batteries and Na-O2 technology is explored, and new advances on nonaqueous Na-ion systems are summarized.
Journal ArticleDOI

Conjugated dicarboxylate anodes for Li-ion batteries.

TL;DR: Two organic salts, Li(2)C(8)H(4)O(4), with carboxylate groups conjugated within the molecular core, with enhanced thermal stability over carbon electrodes in 1 M LiPF(6) ethylene carbonate-dimethyl carbonate electrolytes, which should result in safer Li-ion cells.
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