A polyimide derivative containing different carbonyl groups for flexible lithium ion batteries

Wu, Haiping; Yang, Qian; Meng, Qinghan; Ahmad, Aziz; Zhang, M.; Zhu, Lingyun; Liu, Y. G.; Wei, Zhixiang

doi:10.1039/c5ta07246h

Cited by 94 publications

(92 citation statements)

References 42 publications

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“…The peaks at 1650 cm −1 in PI@GF was the symmetric stretching vibration of CO bonds, which was shifted from 1770 cm −1 in PMDA, demonstrating the existence of imide bond. The peak at 1334 cm −1 in PI@GF was the stretching vibration of the CN bond, indicating the PMDA and DAAQ units were connected by the CN bond . For NC@GF‐ T samples, all of the strong peaks of CO (1650 cm −1 ) disappeared, indicating that the polymer had been carbonized.…”

Section: Resultsmentioning

confidence: 99%

Ultrathin Nitrogen‐Doped Carbon Layer Uniformly Supported on Graphene Frameworks as Ultrahigh‐Capacity Anode for Lithium‐Ion Full Battery

Huang

Yang

et al. 2018

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The designable structure with 3D structure, ultrathin 2D nanosheets, and heteroatom doping are considered as highly promising routes to improve the electrochemical performance of carbon materials as anodes for lithium-ion batteries. However, it remains a significant challenge to efficiently integrate 3D interconnected porous frameworks with 2D tunable heteroatom-doped ultrathin carbon layers to further boost the performance. Herein, a novel nanostructure consisting of a uniform ultrathin N-doped carbon layer in situ coated on a 3D graphene framework (NC@GF) through solvothermal self-assembly/polymerization and pyrolysis is reported. The NC@GF with the nanosheets thickness of 4.0 nm and N content of 4.13 at% exhibits an ultrahigh reversible capacity of 2018 mA h g at 0.5 A g and an ultrafast charge-discharge feature with a remarkable capacity of 340 mA h g at an ultrahigh current density of 40 A g and a superlong cycle life with a capacity retention of 93% after 10 000 cycles at 40 A g . More importantly, when coupled with LiFePO cathode, the fabricated lithium-ion full cells also exhibit high capacity and excellent rate and cycling performances, highlighting the practicability of this NC@GF.

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Section: Resultsmentioning

confidence: 99%

Ultrathin Nitrogen‐Doped Carbon Layer Uniformly Supported on Graphene Frameworks as Ultrahigh‐Capacity Anode for Lithium‐Ion Full Battery

Huang

Yang

et al. 2018

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“…[106,107] Substituted structures have chain, [108] aromatic ring, [109] and carbonyl structures. [111] Based on a comparison of the electrochemical properties of polyimides with different π structures and anthraquinone, [112] PI-11 and PI-12 exhibited a high reversible capacity of 185 and 192 mAh g −1 , respectively. The C initial values of PI-14 and PI-15 were 115 and 90 mAh g −1 , respectively.…”

Section: Aromatic Polyimidesmentioning

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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“…The polymer derivatives can be good alternative active materials for flexible batteries because of their intrinsic flexible property. Recently, the composite of polymers with conducting agents as an active material has been developed as a flexible polymer cathode . Figure g shows the composite of polyimide derivatives (PMTA) as an active material and single‐walled carbon nanotube (SWCNT) as a conductive agent, which was synthesized by a simple rolling method .…”

Section: Recent Progress In Flexible Lithium‐ion Batteriesmentioning

confidence: 99%

Issues and Challenges Facing Flexible Lithium‐Ion Batteries for Practical Application

Cha

Kim

Lee

et al. 2017

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With the advent of flexible electronics, lithium-ion batteries have become a key component of high performance energy storage systems. Thus, considerable effort is made to keep up with the development of flexible lithium-ion batteries. To date, many researchers have studied newly designed batteries with flexibility, however, there are several significant challenges that need to be overcome, such as degradation of electrodes under external load, poor battery performance, and complicated cell preparation procedures. In addition, an in-depth understanding of the current challenges for flexible batteries is rarely addressed in a systematical and practical way. Herein, recent progress and current issues of flexible lithium-ion batteries in terms of battery materials and cell designs are reviewed. A critical overview of important issues and challenges for the practical application of flexible lithium-ion batteries is also provided. Finally, the strategies are discussed to overcome current limitations of the practical use of flexible lithium-based batteries, providing a direction for future research.

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A polyimide derivative containing different carbonyl groups for flexible lithium ion batteries

Cited by 94 publications

References 42 publications

Ultrathin Nitrogen‐Doped Carbon Layer Uniformly Supported on Graphene Frameworks as Ultrahigh‐Capacity Anode for Lithium‐Ion Full Battery

Ultrathin Nitrogen‐Doped Carbon Layer Uniformly Supported on Graphene Frameworks as Ultrahigh‐Capacity Anode for Lithium‐Ion Full Battery

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

Issues and Challenges Facing Flexible Lithium‐Ion Batteries for Practical Application

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