I-Corps: Hybrid Protein Graphene Electrodes for Supercapacitors

I-Corps：用于超级电容器的混合蛋白石墨烯电极

• 批准号: 1620998
• 负责人: Daniel Cox
• 金额: $ 5万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-02-15 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1620998&HistoricalAwards=false
• 关键词: Corps; Hybrid; Protein; Graphene; Electrodes

Our modern technical society needs devices able to store and deliver energy effectively, for applications including i) mobile electronic devices (ii) electric transport via cars, electric bikes, "hoverboards" and other vehicles (iii) implanted biomedical sensor devices, and (iv) electrical energy storage for alternative power sources such as windmills and photovoltaics, because "the wind doesn?t always blow, and the sun doesn?t always shine." Current commercial storage is dominated by batteries, especially lithium ion batteries ubiquitous in cell phones, laptops, Tesla electric vehicles, etc, because they have the highest energy density by weight. However, batteries can heat up (not desirable for medical implants), contain toxic components (as in the lead acid batteries common in electric bikes), and have safety issues (witness the string of fires in "hoverboards" recently). It is worth examining other options like supercapacitors, which store energy by nonchemical, nontoxic means, can deliver electrical energy far more rapidly than batteries, and which do not heat or represent fire danger. While supercapacitors have long occupied niche markets as secondary power sources or for rapid charging applications, they do not store as much energy per unit mass as lithium ion batteries, and conventional designs are more expensive, based dominantly on the cost and materials in the supercapacitor charging terminals (electrodes). This I-Corps team proposes a new approach that combines the revolutionary material graphene with designed proteins to provide supercapacitor electrodes that are cheaper and have high energy density and so could be disruptive for the energy storage market. In the short term, this I-Corps team hopes to produce low cost, environmentally benign small supercapacitors which can potentially be used in medical devices (since they do not heat up and are benign), niche transportation applications (such as replacement for batteries in e-bikes and cars), and potentially novel devices such as nontoxic, non-flame based biodegradable replacements for flares. In the long term, they could help supply reliable and quickly discharged electrical grid storage to go hand-in-hand with intermittent energy generation from renewables so that the transfer of electricity remains stable and disruption free. During the I-Corps program, the team intends to interview stakeholders in general energy storage technologies, grid storage (from the storage provider side and the energy storage side), home energy storage, energy storage in medical devices, and energy storage in various transportation contexts, especially e-bikes and cars. The team does not plan to go after energy storage in the consumer electronics market, where the technology is sufficiently mature.

我们的现代技术社会需要能够有效地存储和输送能量的装置，用于包括以下的应用：i）移动的电子装置，（ii）通过汽车、电动自行车、“悬浮板”和其他交通工具的电力运输，（iii）植入的生物医学传感器装置，以及（iv）用于诸如风车和光电转换器的替代电源的电能存储，因为“风不能？不总是吹，太阳也不吹？Don't总是闪闪发光。“目前的商业存储由电池主导，特别是在手机，笔记本电脑，特斯拉电动汽车等中无处不在的锂离子电池，因为它们具有最高的重量能量密度。 然而，电池可能会发热（不适合医疗植入），含有有毒成分（如电动自行车中常见的铅酸电池），并且存在安全问题（见证了最近“悬浮滑板”的一系列火灾）。 值得研究的是其他选择，如超级电容器，它通过非化学，无毒的方式储存能量，可以比电池更快地提供电能，并且不会加热或代表火灾危险。 虽然超级电容器作为二次电源或用于快速充电应用长期占据利基市场，但它们每单位质量存储的能量不如锂离子电池多，并且传统设计更昂贵，主要基于超级电容器充电端子（电极）中的成本和材料。I-Corps团队提出了一种新方法，将革命性材料石墨烯与设计的蛋白质相结合，以提供更便宜且具有高能量密度的超级电容器电极，因此可能会对储能市场产生破坏性影响。在短期内，这个I-Corps团队希望生产低成本，环境友好的小型超级电容器，这些超级电容器可能用于医疗设备（因为它们不会发热并且是良性的），利基运输应用（例如电动自行车和汽车中的电池替代品），以及潜在的新型设备，例如无毒，非火焰可生物降解的照明弹替代品。从长远来看，它们可以帮助提供可靠和快速放电的电网存储，与可再生能源的间歇性发电齐头并进，从而使电力传输保持稳定和无中断。在I-Corps计划期间，该团队打算采访一般储能技术，电网存储（从存储提供商侧和储能侧），家庭储能，医疗设备储能以及各种交通环境中的储能（特别是电动自行车和汽车）的利益相关者。 该团队不打算在消费电子市场上追求储能，因为那里的技术已经足够成熟。