炭热原位合成In2O3(Bi2O3)/剑麻纤维基碳复合材料及在铅碳电池中的应用研究

In-situ Synthesis of In2O3(Bi2O3)/Sisal Fiber-Based Carbon Composites by Carbon Heating and Their Application in Lead Carbon Batteries

利用炭热原位合成制备了Bi2O3、In2O32种不同的析氢抑制剂/剑麻纤维基碳复合材料,利用XRD,SEM,EDS、N2吸附-脱附曲线等方法对碳复合材料进行表征。结果表明,复合材料结晶程度均较好,剑麻纤维基碳材料表面可以观测到大量嵌入到纤维内部的析氢抑制剂微粒,且分布均匀。将制备的碳复合材料与电池辅剂进行混合,制备成铅碳电池负极材料。电化学测试结果表明,In2O3/剑麻纤维基碳复合材料制备的负极材料具有更长的循环寿命以及更好的电化学性能,其最终容量可达到102.25 mAh/g,循环150次后比容量占最初比容量的79.8%。

Two different hydrogen evolution inhibitors Bi2O3 and In2O3/sisal fiber-based carbon composites were prepared by in-situ synthesis of carbon heating.The carbon composites were characterized by XRD,SEM,EDS and N2 adsorption-desorption curves.The results indicate that the composites have a good degree of crystallization.A large amount of hydrogen evolution inhibitor particles embedded in the fiber inside can be observed on the surface of the sisal fiber-based carbon material,and their distribution is uniform.The prepared carbon composite material was mixed with a battery auxiliary agent to prepare a lead carbon battery anode material.The electrochemical test results show that the anode material of the In2O3/sisal fiber-based carbon composite has a longer cycle life and better electrochemical performance.Its final capacity can reach 102.25 mAh/g;after 150 cycles,the specific capacity maintains 79.8%of the initial specific capacity.