Investigating an all-organic battery using polyisothianaphthene as a redox-active bipolar electrode material

Kahsay, Berhanemeskel Atsbeha; Ramar, Alagar; Wang, Fuming; Yeh, Nan‐Hung; Lin, Ping-Ling; Luo, Zih-Jia; Chan, Ting‐Shan; Su, Chia‐Hung

doi:10.1016/j.jpowsour.2019.04.092

Cited by 22 publications

(6 citation statements)

References 45 publications

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“…From the CV curves of PTT-2@C, PTT-3@C and PTT-4@C, there all have a small oxidation peak at around 2.5 V, which refers to the p-type doping process after all the Li + ions had been deintercalated from the composites. 30 In this process, the PF 6 − in the electrolyte migrated into the polymer's matrix and form the p-type doping state [ A + x PF 6 − ], where A refers to the polymer's matrix, and x refers to the doping levels of the polymers. 28 The relatively low n-type doping redox potentials vs. Li/Li + here of the four composites (around 1 V) suggest that the prepared composites in this work can be used as the anode materials in LIBs.…”

Section: Resultsmentioning

confidence: 99%

The synthesis of triazine–thiophene–thiophene conjugated porous polymers and their composites with carbon as anode materials in lithium-ion batteries

et al. 2021

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Section: Resultsmentioning

confidence: 99%

The synthesis of triazine–thiophene–thiophene conjugated porous polymers and their composites with carbon as anode materials in lithium-ion batteries

et al. 2021

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“…After 200 cycles, the O 1s spectrum in Figure 10d shows peaks at 531.2 eV is assigned to Li 2 CO 3 , which is the major component of the SEI. [45][46][47][48][49] Another two peaks at 532.1 and 533.5 eV are indicated the presence of CO and C-O-C bonds of the organic polycarbonate SEI in the blank-Si electrode. Similarly, the PBCS-Si electrode contains peaks at 530.7, 532.3, and 533.5 eV features of Li 2 CO 3 , CO, and COC bonds, indicating the SEI as well.…”

Section: Resultsmentioning

confidence: 99%

Investigations of Intramolecular Hydrogen Bonding Effect of a Polymer Brush Modified Silicon in Lithium‐Ion Batteries

Hailu

Ramar

Wang

et al. 2022

Adv Materials Inter

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Gradually eradicating petrolic use is therefore the correct direction for maintaining the environment of the earth. Developing energy storage and saving energy consumption is the key to maintaining a good life. Currently, the lithium-ion battery is one of the best choices for the use of vehicles. However, the energy density of the lithium-ion batteries on current developments is less than 300 Wh kg -1 , which is restricted by the capacity of electrode active materials.Si has the maximum theoretical capacity (4000 mAh g -1 ) compared with the graphite (372 mAh g -1 ) and Li 4 Ti 5 O 12 (175 mAh g -1 ). However, Si can only be used in small amounts as an additive (less than 10 wt%) in commercial battery owing to the problems of volume expansion [6,7] and electrochemical irreversibility. [8,9] In terms of previous discussions, the repeatable pulverization of Si during cycling is the key in decaying the performance. [10,11] With the volume expansion and the pulverization, the new surface area of Si is continuously generated and contacts electrolyte for more solid electrolyte interphase (SEI) formation, which increases the impedance and consumes lithium ions significantly. Moreover, 300-400% volume change of Si during cycling makes it difficult for battery design. Several researches have been investigated for solving those problems of Si such as carbon coating, [12] element Silicon (Si) has the maximum capacity compared with the conventional graphite, which can dramatically increase the energy density of the battery. However, due to some tremendous drawbacks of Si material such as electrochemical irreversibility and volume expansion on alloy reaction, pure Si cannot be used in large quantities in the anode electrode. In this research, a polymer brush core-shell structure (PBCS) on Si nanoparticle provides three significant functions because of the intramolecular effect of hydrogen bonding with PBCS and the binder delivers a good dispersion in the slurry, a mechanical protection during cycling, and excellent ionic conductivity for highrate tests. The carbonyl groups of polymer brush on Si surface are fabricated to enhance lithium-ion diffusion and the adjustment of attraction and repulsion by intramolecular hydrogen bonding effect with binder in between each Si particles. The PBCS-Si electrode shows the first coulombic efficiency is 87.1%; the retentions are 92.5% (0.1C/ 0.1C) for 200 cycles and 86.2% (0.5C/ 0.5C) for 400 cycles. Operando TXM displays that the PBCS structure significantly protects the nano Si from cracking owing to the high elastic function and intramolecular hydrogen bonding effect of the PBCS. With this novel PBCS-Si material, a high energy density lithium-ion battery can be expected.

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“…These two latter classes of three‐dimensional, π‐conjugated, crystalline coordination polymers (fully organic and metal‐organic hybrids, respectively) have been widely investigated as battery materials, and their electrochemical properties are connected to the employed redox‐active ligands. Some p‐type materials can also undergo n‐type reactions (hence correctly classified as bipolar materials), such as molecules and polymers based on the (2,2,6,6‐tetramethylpiperidin‐1‐yl)oxyl (TEMPO) moiety or other conjugated polymers 53–55 …”

Section: Overview Of N‐type Organic Active Materialsmentioning

confidence: 99%

“…Some p-type materials can also undergo n-type reactions (hence correctly classified as bipolar materials), such as molecules and polymers based on the (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) moiety or other conjugated polymers. [53][54][55] Organic materials are typically classified and discussed in reviews based on these different constituent elements and functional groups. However, in this review, we categorize these materials based on a practical criterion: whether or not they require a lithium-metal anode.…”

Section: Overview Of N-type Organic Active Materialsmentioning

confidence: 99%

Assessing n‐type organic materials for lithium batteries: A techno‐economic review

Innocenti,

Adenusi,

Passerini

2023

InfoMat

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The high demand for critical minerals such as lithium, copper, nickel, and cobalt, required for lithium‐ion batteries, has raised questions regarding the feasibility of maintaining a steady and affordable supply of raw materials for their production. In the last years, researchers have shifted their attention toward organic materials, which are potentially more widely available, affordable, and sustainable due to the ubiquitous presence of the constituent organic elements. The n‐type materials have a redox mechanism analogous to that of lithium‐ion cathodes and anodes, hence they are suitable for a meaningful comparison with the state‐of‐the‐art technology. While many reviews have evaluated the properties of organic materials at the material or electrode level, herein, the properties of n‐type organic materials are assessed in a complex system, such as a full battery, to evaluate the feasibility and performance of these materials in commercial‐scale battery systems. The most relevant cathode materials for organic batteries are reviewed, and a detailed cost and performance analysis of n‐type material‐based battery packs using the BatPaC 5.0 software is presented. The analysis considers the influence of electrode design choices, such as the conductive carbon content, active material mass loading, and electrode density, on energy density and cost. The potential of n‐type organic materials as a low‐cost and sustainable solution for energy storage applications is highlighted, while emphasizing the need for further advancements of organic materials for energy storage applications.image

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Investigating an all-organic battery using polyisothianaphthene as a redox-active bipolar electrode material

Cited by 22 publications

References 45 publications

The synthesis of triazine–thiophene–thiophene conjugated porous polymers and their composites with carbon as anode materials in lithium-ion batteries

The synthesis of triazine–thiophene–thiophene conjugated porous polymers and their composites with carbon as anode materials in lithium-ion batteries

Investigations of Intramolecular Hydrogen Bonding Effect of a Polymer Brush Modified Silicon in Lithium‐Ion Batteries

Assessing n‐type organic materials for lithium batteries: A techno‐economic review

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