CeO2作为分散体对共混聚（苯乙烯-共-甲基丙烯酸甲酯）作为锂离子电池电解液的影响,Polymer International

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CeO2作为分散体对共混聚（苯乙烯-共-甲基丙烯酸甲酯）作为锂离子电池电解液的影响
Polymer International ( IF 2.9 ) Pub Date : 2021-11-17 , DOI: 10.1002/pi.6331
M. Ramachandran _{1,

2} , R. Subadevi ₁ , P. Rajkumar ₁ , R. Muthupradeepa _{1,

3} , M. Sivakumar ₁

Affiliation

聚（苯乙烯-共-甲基丙烯酸甲酯）P（S-MMA）复合聚合物电解质在固态电化学装置中得到了广泛的考虑。有许多策略可以提高环境温度的离子电导率，例如添加增塑剂、加入纳米尺寸的陶瓷填料以及与主体聚合物共混，这些都是在这项工作中进行的。CeO ₂对P(S-MMA)-聚(偏二氟乙烯) (25:75 of 27 wt%)-LiClO _4的影响(8 wt%)-碳酸亚乙酯:碳酸亚丙酯 (1:1 of 65 wt%) 体系通过常规溶液浇铸技术制备。使用 XRD、傅里叶变换红外光谱、热重和差热分析、SEM 和交流阻抗分析对所制备的聚合物膜进行表征。复合聚合物共混凝胶电解质体系在环境温度下具有高离子电导率（2.51 × 10 ^-2 S cm ^-1）和6 wt%的CeO _{2纳米填料。}电导率的提高是由于无定形含量的增加；与 XRD 结果吻合较好。最佳电解质用于设计 LiFePO ₄/复合凝胶聚合物电解质/锂电池耦合在 2032 型纽扣电池中。它在 0.1 C 时的放电容量为 151 mAh g ^-1。 © 2021 Society of Industrial Chemistry。

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Influence of CeO2 as dispersoid in blend poly(styrene-co-methylmethacrylate) as electrolyte for lithium-ion battery

Poly(styrene-co-methylmethacrylate) P(S-MMA) composite polymer electrolytes are having massive consideration for solid-state electrochemical devices. There are numerous tactics implement to improve the ambient temperature ionic conductivity such as the addition of plasticizers, the inclusion of nanosize ceramic fillers and blending with the host polymer, which were carried out in this work. The effect of CeO₂ on the P(S-MMA)-poly(vinylidene fluoride) (25:75 of 27 wt%)-LiClO₄ (8 wt%)-ethylene carbonate:propylene carbonate (1:1 of 65 wt%) system prepared via a conventional solution casting technique. The as-prepared polymer membranes were characterized using XRD, Fourier transform infrared spectroscopy, thermogravimetry and differential thermal analysis, SEM and AC impedance analyses. The composite polymer blend gel electrolyte system exhibits high ionic conductivity (2.51 × 10⁻² S cm⁻¹) with 6 wt% CeO₂ nanofiller at ambient temperature. The conductivity enhancement is due to the presence of a rise in the amorphous content; it is in well concurrence with the XRD results. The optimum electrolyte was used to design the LiFePO₄/composite gel polymer electrolyte/Li cell couple in a 2032 type coin cell. It possesses a discharge capacity of 151 mA h g⁻¹ at 0.1 C. © 2021 Society of Industrial Chemistry.

更新日期：2021-11-17

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