Open AccessJournal Article
Multifunctional SA-PProDOT binder for lithium ion batteries
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TLDR
In this work, the naturally occurring binder sodium alginate is functionalized with 3,4-propylenedioxythiophene-2,5-dicarboxylic acid (ProDOT) via a one-step esterification reaction in a cyclohexane/dodecyl benzenesulfonic acid/water microemulsion system, resulting in a multifunctional polymer binder, that is, SA-P proDOT.Abstract:
An environmentally benign, highly conductive,
and mechanically strong binder system can overcome the
dilemma of low conductivity and insufficient mechanical
stability of the electrodes to achieve high performance lithium ion batteries (LIBs) at a low cost and in a sustainable way. In this work, the naturally occurring binder sodium alginate (SA) is functionalized with 3,4-propylenedioxythiophene-2,5-dicarboxylic acid (ProDOT) via a one-step esterification reaction in a cyclohexane/dodecyl benzenesulfonic acid (DBSA)/water
microemulsion system, resulting in a multifunctional polymer
binder, that is, SA-PProDOT. With the synergetic effects of the functional groups (e.g., carboxyl, hydroxyl, and ester groups), the resultant SA-PProDOT polymer not only maintains the outstanding binding capabilities of sodium alginate but also enhances the mechanical integrity and lithium ion diffusion coefficient in the LiFePO4 (LFP) electrode during the operation of the batteries. Because of the conjugated network of the PProDOT and the lithium doping under the battery environment, the SA-PProDOT becomes conductive and matches the conductivity needed for LiFePO4 LIBs. Without the need of conductive additives such as carbon black, the resultant batteries have achieved the theoretical specific capacity of LiFePO4 cathode (ca. 170 mAh/g) at C/10 and ca. 120 mAh/g at 1C for more than 400 cycles.read more
Citations
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Exploring Chemical, Mechanical, and Electrical Functionalities of Binders for Advanced Energy-Storage Devices
Hao Chen,Min Ling,Min Ling,Luke Hencz,Han Yeu Ling,Gaoran Li,Zhan Lin,Gao Liu,Shanqing Zhang +8 more
TL;DR: This review reviews existing and emerging binders, binding technology used in energy-storage devices, and state-of-the-art mechanical characterization and computational methods for binder research, and proposes prospective next-generation binders for energy- storage devices from the molecular level to the macro level.
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A New Type of Multifunctional Polar Binder: Toward Practical Application of High Energy Lithium Sulfur Batteries.
Wei Chen,Wei Chen,Tao Qian,Jie Xiong,Na Xu,Xuejun Liu,Jie Liu,Jinqiu Zhou,Xiaowei Shen,Tingzhou Yang,Yu Chen,Chenglin Yan +11 more
TL;DR: A new type of amino polar binder with 3D network flexibility structure for high energy Li-S batteries is synthesized and successfully used with commercial sulfur powder cathodes, showing significant performance improvement in capacity retention and high potential for practical application.
Interpenetrated Gel Polymer Binder for High Performance Silicon Anodes in Lithium-Ion Batteries
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Single-Crystalline LiFePO4 Nanosheets for High-Rate Lithium Batteries
Guihua Yu,Yu Zhao,Lele Peng +2 more
TL;DR: The preparation of single crystalline LiFePO4 nanosheets with a large percentage of highly oriented {010} facets, which provide the highest pore density for lithium-ion insertion/extraction and may benefit the development of lithium batteries with both favorable energy and power density.
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Conductive polymers for next-generation energy storage systems: recent progress and new functions
Jeonghun Kim,Jaewoo Lee,Jungmok You,Min-Sik Park,Shahriar A. Hossain,Yusuke Yamauchi,Yusuke Yamauchi,Jung Ho Kim +7 more
TL;DR: Conductive polymers are attractive organic materials for future high-throughput energy storage applications due to their controllable resistance over a wide range, cost-effectiveness, high conductivity (>103 S cm−1), light weight, flexibility, and excellent electrochemical properties as mentioned in this paper.
References
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A Major Constituent of Brown Algae for Use in High-Capacity Li-Ion Batteries
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