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锂离子电容器正极材料的研究进展 被引量:2
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作者 赵基钢 王赫 郑俊生 《材料工程》 EI CAS CSCD 北大核心 2023年第9期28-36,共9页
锂离子电容器是介于锂离子电池和超级电容器两者之间的储能器件,兼具高能量密度和高功率密度,被认为是最有前途的电能储存系统之一。本文总结近年来碳基和嵌锂型正极材料的研究进展,详细介绍碳基和嵌锂型电极材料的分类和改性方法。为... 锂离子电容器是介于锂离子电池和超级电容器两者之间的储能器件,兼具高能量密度和高功率密度,被认为是最有前途的电能储存系统之一。本文总结近年来碳基和嵌锂型正极材料的研究进展,详细介绍碳基和嵌锂型电极材料的分类和改性方法。为提高锂离子电容器的使用性能,通过微观结构调控、表面修饰、掺杂改性及复合材料等手段进一步优化正极材料,进行正负极动力学匹配,综合提高其电化学性能。最后梳理出未来锂离子电容器正极材料的研究热点集中在对正极材料微观结构的调控优化、元素掺杂和表面改性以及与其他材料复合等方面,并指出未来发展方向在于优化碳材料的结构与组成、克服倍率和循环性能的限制以及开发在高压下更稳定的正极材料等。 展开更多
关键词 碳材料 嵌锂型材料 锂离子电容器 研究进展
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Greenhouses for CO_(2) sequestration from atmosphere 被引量:1
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作者 Jie Bao Wei-Hua Lu +1 位作者 jigang zhao Xiaotao T.Bi 《Carbon Resources Conversion》 2018年第2期183-190,共8页
Escalating threat of global warming and the steady growth in world population require the development of transformative greenhouse gas control technologies and food production systems of high energy efficiency,small e... Escalating threat of global warming and the steady growth in world population require the development of transformative greenhouse gas control technologies and food production systems of high energy efficiency,small environmental footprint and low cost.To control the global temperature rise below 2℃ by 2050,global greenhouse gas emissions need to be cut by more than 80%.At the same time,our land needs to be utilized more efficiently and productively in order to produce enough food to feed projected 9 billion people with less available land area for food production in 2050.We propose to develop a modern urban vertical farming system,i.e.greenhouses equipped with a Carbon Enrichment for Plant Stimulation(CEPS)system,to enhance land use efficiency and thus increase food productivity and,at the same time,to sequestrate CO_(2) from ambient air.The deployment of such a CEPS system will have a potential to remove more than 500 million tonnes CO_(2) from air annually,and increase the current food productivity by more than 15 times than the open field operation.The deployment of the CEPS technology will also promote locally produced food,benefiting urban economical development and job creation. 展开更多
关键词 Carbon enrichment for plant stimulation GREENHOUSES Temperature swing adsorption Sequestration of atmospheric CO_(2)
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