Graphene nanocomposite materials for electrochemical devices (Market study)

电化学电源之所以令人感兴趣，是因为它们可以被设计成更可持续和更尊重环境。其中，电化学超级电容器目前正在各种学术和工业实验室中进行研究，因为它们可以在需要峰值功率脉冲的应用中用作传统电池的补充电荷存储系统。超级电容器领域的研究和开发主要集中在高比电容、快速响应、环境友好和由低成本丰富的元素制成的电极材料的开发上。同时，成本效益高、易于扩展的合成方法对于这项技术的全面实施是必要的。目前的提案涉及用于超级电容器等电化学设备的石墨烯纳米复合材料的市场研究及其制造方法。由这种复合材料得到的电极可以在2V的大电压窗口下工作，这超出了通常用水溶液发现的1V的电位窗口。因此，本发明为限制电化学电容器在水溶液中工作的能量密度方面的主要因素提供了一种实用的解决方案。此外，在含有氧化物前驱体的酸性介质中，基于石墨箔的电化学剥离的合成方法是一种经济、简单的一步法，可以在几个小时内制备出以克为单位的石墨烯复合材料。这项市场研究将提供来自行业的真实反馈，这对于确认该技术的商业潜力至关重要。

Electrochemical power sources are of interest since they can be designed to be more sustainable and more respectful of the environment. Among these, electrochemical supercapacitors are currently being investigated in various academic and industrial laboratories because they can be used as complementary charge storage systems to conventional batteries in applications that require peak power pulses. Research and development in the field of supercapacitors has focussed onto the development of electrode materials that are characterized by high specific capacitance, rapid response, environmentally friendly, and made of low-cost abundant elements. At the same time, cost-effective synthetic methods which are easily scalable up are necessary for the full implementation of this technology.The current proposal is concerned with a market study related to graphene nanocomposite materials for electrochemical devices such as supercapacitors and a method of producing thereof. The electrodes derived from such composite can operate in a large voltage window of 2V which goes beyond the usual potential window of 1V found with aqueous electrolytes. Hence, this invention offers a practical solution to the main factor limiting electrochemical capacitors in terms of energy density operating in aqueous electrolytes. In addition, the synthetic procedure which is based on the electrochemical exfoliation of graphite foil in an acidic medium containing an oxide precursor, is an economic and simple one-step method to produce the graphene composites on the gram-based scale in few hours. This market study will provide a real feedback from the industry essential to confirm the commercial potential of the technology.