本文選題：鋰-空氣電池 + VXC-72　； 參考：《天津工業(yè)大學》2017年碩士論文

【摘要】：近年來智能服裝成為服裝領域研究和開發(fā)的熱點,將電子元件與普通服裝相結(jié)合的方式是服裝智能化最常用的手段。目前,智能服裝內(nèi)的電子元件所需的能源主要來自外加電池,而一般的電池具有續(xù)航時間短、重量大、能量密度小等缺點,嚴重影響了智能服裝的發(fā)展,因此開發(fā)一種長續(xù)航、輕便、能量密度大的電池成為電子智能服裝面臨的首要問題。鋰-空氣電池(Li-air)作為一種新型的電化學能源儲存裝置,理論上具有超高能量密度,受到研究人員的廣泛關注。在實用化之前,鋰-空氣電池仍然存在許多難題亟需解決。本文針對目前鋰-空氣電池陰極催化劑中存在的問題,制備了兩種多孔催化劑,并得到如下結(jié)果:(1)利用靜電紡絲技術,以高錳酸鉀、聚丙烯腈(PAN)和聚甲基丙烯酸甲酯(PMMA)為原料,制備多孔MnOx/CNFs。結(jié)果表明當PAN:PMMA=2:1時,碳纖維的比表面積最大,為908.982m2/g;相比商用的VXC-72,以MnOx/CNFs為陰極催化劑得到的鋰-空氣電池首次放電平臺較高(2.71V),放電比容量在1906mAh/g左右。(2)先對VXC-72進行氧等離子改性處理,后采用溶膠凝膠法合成了具有多孔結(jié)構(gòu)的復合物ATO/CB。結(jié)果表明,對比于純VXC-72電極,ATO/CB復合催化劑體系的鋰-空氣電池的首次放電平臺在2.75V,高于VXC-72的2.62V放電平臺。在0.2mA/cm2電流密度下,ATO/CB催化劑的鋰-空氣電池放電容量達到了1756mAh/g。
[Abstract]:In recent years, intelligent clothing has become a hot spot in the field of clothing research and development. The combination of electronic components and ordinary clothing is the most commonly used means of clothing intelligence. At present, the energy needed for electronic components in smart clothing mainly comes from external batteries, which have the disadvantages of short life span, high weight, low energy density and so on, which seriously affect the development of intelligent clothing. Therefore, the development of a kind of long battery life has been developed. Light, high energy density battery has become the most important problem of electronic intelligent clothing. As a new type of electrochemical energy storage device, Li-air (Li-Air) has been widely concerned by researchers for its high energy density in theory. Before application, lithium-air batteries still have many problems to be solved. In this paper, two kinds of porous catalysts have been prepared for lithium air battery cathodic catalysts. The results are as follows: 1. Using electrospinning technology, potassium permanganate, polyacrylonitrile (PAN) and polymethyl methacrylate (PMMA) as raw materials. Preparation of porous MnOx-CNFs. The results showed that when PAN:PMMA=2:1, the specific surface area of carbon fiber was 908.982 m2 / g. Compared with commercial VXC-72, the first discharge platform of lithium-air battery with MnOx/CNFs as cathode catalyst was 2.71 V ~ (-1) V ~ (-1), and the specific discharge capacity was about 1906mAh/g. The composite ATO / CB with porous structure was synthesized by sol-gel method. The results show that the first discharge platform of lithium-air battery is 2.75V, higher than that of VXC-72 (2.62V) compared with pure VXC-72 electrode / CB composite catalyst system. At the current density of 0.2mA/cm2, the discharge capacity of lithium-air cell over ATO / CB catalyst is 1756mAh/ g.
【學位授予單位】：天津工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM911.41

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