Trisulfide‐Bond Acenes for Organic Batteries

Hu, Peng; He, Xuexia; Ng, Man‐Fai; Ye, Jun; Zhao, Chenyang; Wang, Shancheng; Tan, Ke-Jie; Chaturvedi, Apoorva; Jiang, Hui; Kloc, Christian; Hu, Wenping; Yi, Long

doi:10.1002/anie.201906301

Cited by 35 publications

(25 citation statements)

References 95 publications

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“…The energy density of the PTCDA@GDY is calculated and compared with the reports. [ 16,18,34–37 ] Because the electrodes prepared by our method have high active mass ratio of 92%, the as‐prepared PTCDA@GDY has a higher energy density up to 310 W h kg −1 . Obviously, the electrode with high active mass ratio demonstrates more advantages in energy density than the lower one (less than 60% in reports in Figure 4e).…”

Section: Figurementioning

confidence: 99%

In Situ Coating Graphdiyne for High‐Energy‐Density and Stable Organic Cathodes

et al. 2020

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The preparation of organic small‐molecule cathodes is simple and low‐cost; however, their low conductivity and molecular dissolution are two key issues that mean their energy density and power performance are far lower than those of inorganic batteries, thus hindering their practical application. To develop an effective coating technology is the key to obtain high‐performance organic batteries. A general method of in situ weaving all‐carbon graphdiyne nanocoatings is demonstrated. The graphdiyne can be conformally weaved on organic particles under mild conditions so that the conductivity is increased and the dissolution is suppressed. After weaving graphdiyne nanocoat, the active mass of the small‐molecule organic cathodes rise to 93%, thus delivering a higher energy density of 310 W h kg−1 than previously reported, and the power performance and long‐term stability are greatly improved. Additionally, this method shows great potential to become the crucial technology for fabricating organic batteries with energy density close to prevailing lithium‐ion batteries.

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Section: Figurementioning

confidence: 99%

In Situ Coating Graphdiyne for High‐Energy‐Density and Stable Organic Cathodes

et al. 2020

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“…For example, the SÁÁÁS interactions may also reduce the solubility of the materials and led to enhanced cyclability of the batteries. [84,85] However, materials with these intermolecular interactions usually showed relatively low cycle life, probably due to the comparatively weaker intensity of the interactions.…”

Section: Weak Intermolecular Interactions Between Neighbor Active Molmentioning

confidence: 99%

Weak Intermolecular Interactions for Strengthening Organic Batteries

Wang

2020

Energy & Environ Materials

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Organic batteries have attracted a lot of attention due to the advantages of flexibility, light weight, vast resources, low cost, recyclability, and ease to be functionalized through molecular design. The biggest difference between organic materials and inorganic materials is the relatively weak intermolecular interactions in organic materials but strong covalent or ionic bonds in inorganic materials, which is the inherent reason of their different physiochemical and electrochemical characteristics. Therefore, the relatively weak intermolecular interactions can indisputably affect the electrochemical performance of organic batteries significantly. Herein, the intermolecular interactions that are closely related to organic redox-active materials and unique in organic batteries are summarized into three parts: 1) between neighbor active molecules, 2) between active molecules and the conduction additives, and 3) between active molecules and the binders. We hope this short review can give a distinct viewpoint for better understanding the internal reasons of high-performance batteries and stimulate the deep studies of relatively weak intermolecular interactions for strengthening the performance of organic batteries. REVIEW Organic Batteries

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“…As lithium batteries are used in all aspects of our lives, the demand for more advanced battery technologies is increasing. In addition to technical issues, such as high discharge capacities, high energy densities, long cycle lives, and fast charging rates, there is emerging concern related to the environmental impact of cathode materials, including their toxicity . This issue has prompted extensive studies on lithium–organic batteries, in which lithium metal oxide cathodes are replaced by environmentally benign organic materials …”

Section: Introductionmentioning

confidence: 99%

All‐Solid‐State Lithium–Organic Batteries Comprising Single‐Ion Polymer Nanoparticle Electrolytes

et al. 2020

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Advances in lithium battery technologies necessitate improved energy densities, long cycle lives, fast charging, safe operation, and environmentally friendly components. This study concerns lithium–organic batteries comprising bioinspired poly(4‐vinyl catechol) (P4VC) cathode materials and single‐ion conducting polymer nanoparticle electrolytes. The controlled synthesis of P4VC results in a two‐step redox reaction with voltage plateaus at around 3.1 and 3.5 V, as well as a high initial specific capacity of 352 mAh g−1. The use of single‐ion nanoparticle electrolytes enables high electrochemical stabilities up to 5.5 V, a high lithium transference number of 0.99, high ionic conductivities, ranging from 0.2×10−3 to 10−3 S cm−1, and stable storage moduli of >10 MPa at 25–90 °C. Lithium cells can deliver 165 mAh g−1 at 39.7 mA g−1 for 100 cycles and stable specific capacities of >100 mAh g−1 at a high current density of 794 mA g−1 for 500 cycles. As the first successful demonstration of solid‐state single‐ion polymer electrolytes in environmentally benign and cost‐effective lithium–organic batteries, this work establishes a future research avenue for advancing lithium battery technologies.

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Trisulfide‐Bond Acenes for Organic Batteries

Cited by 35 publications

References 95 publications

In Situ Coating Graphdiyne for High‐Energy‐Density and Stable Organic Cathodes

In Situ Coating Graphdiyne for High‐Energy‐Density and Stable Organic Cathodes

Weak Intermolecular Interactions for Strengthening Organic Batteries

All‐Solid‐State Lithium–Organic Batteries Comprising Single‐Ion Polymer Nanoparticle Electrolytes

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