Polyimide schiff base as a high-performance anode material for lithium-ion batteries

Wang, Jun; Yao, Hongyan; Du, Chunya; Guan, Shaokang

doi:10.1016/j.jpowsour.2020.228931

Cited by 52 publications

(41 citation statements)

References 42 publications

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“…[202][ Additionally, other groups have explored polymeric structures of Schiff base units with redox-active fragments and reported high reversible capacities with extended cycling stabilities (Figure 9). [224][225][226]229] For instance, a Schiff base polymer containing naphthalene diimide units maintained a reversible capacity of 627.5 mAh g −1 (as considered of more than 4 Li + /e − per repeat unit) over 200 cycles, whereas other enclosing anthraquinone units led to reversible capacity of 1130 mAh g −1 (as considered of much more than 4 Li + /e − per repeat unit) with a capacity retention of 96.5% after 100 cycles. Undoubtedly, such high capacities are inherent to super-lithiation of the polymeric structures at low potentials, as is indicated by sloppy voltage profiles within the voltage range of 0.01-3.5 V versus Li + /Li (Figure 9).…”

Section: Hückel-stabilized Schiff Basesmentioning

confidence: 99%

“…The redox process proceeds akin to imine-based compounds, for which the nitrogen in azomethine group (CN) reacts according to an n-type redox mechanism (Figure 8). [52,67,[222][223][224][225][226] For process reversibility, the Schiff bases must be integrated within a 10-π electron unit (NCHΦCHN) in order to abide by the Hückel's rule of aromaticity. [37] By way of comparison, the CN functional groups are easier to reduce than the homologous CO ones, [227] and their redox potential could be tuned through intramolecular hydrogen bonds or lengthening the conjugation chain.…”

Section: Hückel-stabilized Schiff Basesmentioning

confidence: 99%

“…Reproduced with permission. [226] Copyright 2021, Elsevier Ltd. carboxylate-Schiff base combination illustrates a good example proving the feasibility of hybridizing different redox functionalities across the same molecule, and worthy to be explored in an adequate molecular structure. Overall, this work unveiled crucial molecular consideration of Schiff-type materials that should be considered for the proper functioning of redox moieties.…”

Section: Hückel-stabilized Schiff Basesmentioning

confidence: 99%

mentioning

confidence: 99%

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Organic Negative Electrode Materials for Metal‐Ion and Molecular‐Ion Batteries: Progress and Challenges from a Molecular Engineering Perspective

Lakraychi

Dolhem

Vlad

et al. 2021

Advanced Energy Materials

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Thanks to their versatility and flexibility, EOMs have shown broad applicability as bulky solid [3] or dissolved [4,5] active material, in aqueous [6][7][8] or non-aqueous electrolyte, [9][10][11] for portable and stationary batteries, respectively. In practice, OEMs are explored as main active materials in LIBs, [12] beyond Li systems (e.g., hydrogen, [13,14] Na-ion, [15][16][17][18][19] K-ion, [20][21][22][23][24] and multivalent batteries like magnesium, [25,26] zinc, [27] or aluminum [28,29] ) and also redox flow batteries; [30] or as supporting active materials such as redox mediators for Li-O 2 batteries, [31] Li-source sacrificial materials for Li-ion capacitor [32] and redox electrolytes for high-energy supercapacitors. [33] In contrast to the state-of-the-art inorganic materials, whose reactivity is based on redox of transition metal center and consequently Li + de/insertion, [34,35] the redox reaction of EOMs is based on the charge state change of the redox moiety, [12] for which the charge compensation during redox can be either made by cations, referring to n-type systems, or by anions, belonging then to p-type system, according to the proposed Hünig's classification. [36,37] The richness of organic chemistry coupled with molecular modifications have provided thus far a plethora of molecules and architectures operating within a large potential window with high specific capacities, extended cycling stability and high cycling rate. This has enabled building a broad database of electroactive compounds for both positive and negative electrode applications. Organic positive electrode materials (OPEMs) certainly benefit from larger attention since there are more possibilities to explore, for example, conducting polymers, [38,39] nitroxides, and other stable organic radicals, [40][41][42][43] sulfur compounds, [11] as well as conjugated amines, [44][45][46] conjugated sulfonamides, [47] nitro-aromatics, [48] and carbonyls. [49,50] The latter being certainly the most explored category owing to major advances attained so far but also to opportunities for further improvements to attain simultaneously high energy and power densities combined with good cycling stability. [12] On the opposite side, the chemical library is less rich for organic negative electrode materials (ONEMs), primarily due to much focus on positive electrode chemistries, for which many issues and strategies are to be addressed and explored, respectively. Today, the ONEMs database counts fewer redox families as OPEMs one, with also less specific chemistries within each class. To cite some: the most studied conjugated dicarboxylates, [51] Hückel-stabilized Schiff base, [52] nitrogen-redox azo

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Section: Hückel-stabilized Schiff Basesmentioning

confidence: 99%

Section: Hückel-stabilized Schiff Basesmentioning

confidence: 99%

Section: Hückel-stabilized Schiff Basesmentioning

confidence: 99%

mentioning

confidence: 99%

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Organic Negative Electrode Materials for Metal‐Ion and Molecular‐Ion Batteries: Progress and Challenges from a Molecular Engineering Perspective

Lakraychi

Dolhem

Vlad

et al. 2021

Advanced Energy Materials

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“…The counter electrode in the coin-type cell was lithium slice, and the voltage window was 0–3 V. When scanning towards the cathodic direction, the reduction reactions firstly occurred on the working electrode. It can be seen that during the first cathodic scan, two reduction peaks appeared at 0.67 V and 0 V, which corresponded to the formation process of SEI film (solid electrolyte film) on the surface of the electrode material [ 25 ]. In the subsequent scanning process, these two reduction peaks disappeared, indicating that the SEI film had been formed on the surface of the electrode material after the first cycle, existed stably during the subsequent charge and discharge processes and did not participate in the subsequent electrochemical reaction ( Figure 8 a).…”

Section: Resultsmentioning

confidence: 99%

The Synthesis of a Covalent Organic Framework from Thiophene Armed Triazine and EDOT and Its Application as Anode Material in Lithium-Ion Battery

et al. 2021

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As a class of redox active materials with some preferable properties, including rigid structure, insoluble characters, and large amounts of nitrogen atoms, covalent triazine frameworks (CTFs) have been frequently adopted as electrode materials in Lithium-ion batteries (LIBs). Herein, a triazine-based covalent organic framework employing 3,4-ethylenedioxythiophene (EDOT) as the bridging unit is synthesized by the presence of carbon powder through Stille coupling reaction. The carbon powder was added in an in-situ manner to overcome the low intrinsic conductivity of the polymer, which led to the formation of the polymer@C composite (PTT-O@C, PTT-O is a type of CTFs). The composite material is then employed in LIBs as anode material. The designed polymer shows a narrow band gap of 1.84 eV, proving the effectiveness of the nitrogen-enriched triazine unit in reducing the band gap of the resultant polymers. The CV results showed that the redox potential of the composite (vs. Li/Li+) is around 1.0 V, which makes it suitable to be used as the anode material in lithium-ion batteries. The composite material could exhibit the stable specific capacity of 645 mAh/g at 100 mA/g and 435 mAh/g at 500 mA/g, respectively, much higher than the pure carbon materials, indicating the good reversibility of the material. This work provides some additional information on electrochemical performance of the triazine and EDOT based CTFs, which is helpful for developing a deep understanding of the structure–performance correlations of the CTFs as anode materials.

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Polymeric Electrode Materials in Modern Metal‐ion Batteries

Yang

Zhang

et al. 2023

Functional Polymers for Metal‐Ion Batteries

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Polyimide schiff base as a high-performance anode material for lithium-ion batteries

Cited by 52 publications

References 42 publications

Organic Negative Electrode Materials for Metal‐Ion and Molecular‐Ion Batteries: Progress and Challenges from a Molecular Engineering Perspective

Organic Negative Electrode Materials for Metal‐Ion and Molecular‐Ion Batteries: Progress and Challenges from a Molecular Engineering Perspective

The Synthesis of a Covalent Organic Framework from Thiophene Armed Triazine and EDOT and Its Application as Anode Material in Lithium-Ion Battery

Polymeric Electrode Materials in Modern Metal‐ion Batteries

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