摘要
为了提高钒电池电极的电化学活性,以聚乙烯为基体材料,炭黑、石墨、碳纤维为导电填料制备导电塑料板,用二次回归正交旋转组合设计对制备导电塑料板的原料含量建立数学模型y=0.5872–0.0309x1–0.237 0x2+0.032x3+0.0732x4+0.0566x22;将所制导电塑料板与经阳极氧化处理的石墨毡热粘结成复合电极。结果表明:导电塑料板的电阻率可达0.037.cm,抗拉强度可达67.3MPa,且稳定性良好。所制复合电极具有较好的电化学活性,用其组装单电池,在20×10–3A/cm2的电流密度下,电池的能量效率为77.8%,电压效率为79%,电流效率为98.5%。
To improve the electrochemical activity of electrodes in the vanadium redox battery,a conductive plastic was prepared using polyethylene,carbon black,graphite and carbon fiber.Mathematical model was constructed with materials using quadratic regressive orthogonal rotational combinational design,y=0.5872–0.0309x1–0.2370x2＋0.032x3＋0.0732x4＋0.0566x22.And the composite electrodes composed of graphite felt and the conductive plastics was prepared through thermal bonding.The results indicate the resistance of the conductive plastics is 0.037.cm,the tensile strength of the conductive plastics is 67.3 MPa,and the stability is good.The composite electrodes show high electrochemical activity.Under 20×10–3A/cm2 of current density,using the composite electrodes as an electrode of a single cell,the energy efficiency of the prepared cell is 77.8%,the voltage efficiency is 79%,and the current efficiency is 98.5%.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2013年第8期60-62,共3页
Electronic Components And Materials
基金
教育部新世纪优秀人才支持计划资助项目(No.NECT-10-0946)
四川省青年科技创新研究团队培育计划资助项目(No.2011JTD0039)
关键词
钒电池
导电塑料板
石墨毡
热粘结
复合电极
二次回归正交旋转组合设计
vanadium redox batteries
conductive plastic
graphite felt
thermal bonding
composite electrodes
quadratic regressive orthogonal rotational combinational design
