定制梅蒂斯柱头混合生物聚合物电解质中的锂离子传输,用于超级电池应用

IF 4.3 3区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY
M. Johnsi , S. Dhivya , V J Asha Shalini , N. Balasubramanian , T. Santhoshini Priya
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引用次数: 0

摘要

玉米丝生物聚合物(CSBP)是一种有效的生物材料,可为农业废弃物提供可持续的解决方案,并实现废弃物的价值化。混合生物聚合物电解质(HBPE)是利用玉米丝提取物通过简单的溶液浇铸策略合成的。新合成的[30 wt % CSBP+70 wt % PVDF-Co-HFP] 体系的电导率为 2.35 × 10-8 Scm-1,当加入 3.2 v/v % LiClO4 盐时,电导率在 25 °C 下增至 4.05 × 10-4 Scm-1。结构研究表明,聚合物-盐体系中的 Li+ 和极性基团之间形成了复合物。傅立叶变换红外光谱(FTIR)研究发现,在 1651 和 1628 cm-1 处的突出峰值是由于 -C=O 基团与 Li+ 的相互作用,而 625 cm-1 处则是未结合的 ClO4-。在扫描速率为 1 mV s-1 时,CV 的电化学行为具有良好的可逆性,比容量(Qs = 25.6 Cg-1)和比电容(Csp = 10.67 Fg-1)。此外,CPL 2 系统的峰值电流与不同扫描速率之间的关系通过斜率 b = 0.7 得出,这表明混合电池和超级电容器具有非凡的性能,为可持续储能技术提供了一个独特的平台。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Tailoring Li-ion transport in hybrid biopolymer electrolyte from Maydis stigma for supercapattery applications

Tailoring Li-ion transport in hybrid biopolymer electrolyte from Maydis stigma for supercapattery applications
Corn Silk Biopolymer (CSBP), a potent biomaterial shed light on offering a sustainable solution to agrowaste and achieve waste valorization. Hybrid Biopolymer Electrolyte (HBPE) was synthesized using corn silk extract by simple solution casting strategy. Freshly synthesized [30wt % CSBP+70 wt % PVDF-Co-HFP] system exemplifies conductivity of 2.35 × 10−8 Scm−1 and while loading 3.2 v/v % LiClO4 salt, the conductivity increased to 4.05 × 10−4 Scm−1 at 25 °C. Structural studies indicate complex formation between the Li+ and polar groups within polymer-salt system. From FTIR studies, prominent peaks noticed at 1651 and 1628 cm−1 are due to the interaction of –C=O group with Li+ and 625 cm−1 for unbound ClO4.Our best conducting system reveal Li+ ions (tion = 0.98) are the major charge carriers. Electrochemical behaviour from CV demonstrates a good reversibility with a specific capacity (Qs = 25.6 Cg-1) and specific capacitance (Csp = 10.67 Fg-1) at a scan rate of 1 mV s−1. Also, the relation between the peak current with different scan rates for CPL 2 system is estimated from the slope as b = 0.7 suggesting the extraordinary behavior of a hybrid battery and super capacitor offering a unique platform for the sustainable energy storage technology.
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来源期刊
Journal of Physics and Chemistry of Solids
Journal of Physics and Chemistry of Solids 工程技术-化学综合
CiteScore
7.80
自引率
2.50%
发文量
605
审稿时长
40 days
期刊介绍: The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.
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