Congratulations | 广以获首个美国发明专利!
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近日,广以申报的“一种超级电容器用电极及其制备方法与应用”获得美国发明专利授权许可,第一发明人为广以材料科学与工程系副主任谭启教授。这是广以获得的第一个美国发明专利。
截至2021年12月,广以拥有国家知识产权局颁发的1项专利,13项专利正在审查中,其中包括5项国际专利,在2021年专利总申请量增长了75%。
“本发明提出一种超级电容器用电极,利用该电极能够制备成具有体积能量密度高且循环寿命长的超级电容器。”当来到广以介电与电化学实验室时,谭启教授正在真空手套箱工作机旁边为学生作讲解。他表示,本次获得美国发明专利项目的技术领域涉及电化学技术领域,具体可运用在交通、运输、工业和商业等方面。
超级电容器也可称为电化学电容器,能够从汽车制动或风力涡轮机的变桨系统等许多重复的过程中回收能量,由于其具有大容量、高能量密度、大电流充放电和长循环寿命等优点,目前已在国防、航天航空、汽车工业、消费电子、通信、电力和铁路等领域得到成功的应用,并且其应用范围仍在不断拓展。然而,传统的超级电容器工作电压通常在2.5-3V范围内,耐压小,寿命短。据介绍,本次广以发明的超级电容器用电极,通过在活性层表面设置涂层,弱化电解质与电极表面间所存在的界面问题,进而显著增加电化学容器的工作电压窗口和循环寿命。该项目是广以获得的首个美国发明专利,专利含金量高,保护期可达20年,目前已获得美国专利局授权,等待美国专利局下发证书。
“这种黑色的部分就是电极,下边是支撑的衬底。”在计算材料科学实验室,谭教授拿着一块“黑纸板”模样的样品介绍道。普通电池的充电时间长,这次研发的超级电容器新技术,可以在时间很短的情况下快速完成充电工作。
在实验室里,一台机器正在对电池进行寿命和容量的测试。“广以非常重视培养学生的创新创业理念,我们的研究团队尤其注重吸纳有创新意识的同学。”谭教授由以色列理工学院招聘,并同时被派到广以材料科学与工程系任副主任。他告诉记者,这项发明专利的研发历时四五年,目前已经在与国内一些公司进行合作,“通过特殊氧化物沉积工艺而制备的改性电极能够显著增加超级电容器的技术性能和商业价值。”
此前,广以首个获得专利的项目为“土壤重金属修复装置”实用新型专利成果,获得国家知识产权局授权。“广以在科学研究上已初具成效,知识产权成果转化逐见成效。”广以副校长高级顾问Raanan Adin表示。2021年,广以成立了科创中心,主要承担四大功能:注册、保护和商业化广以的科研成果;在研发项目中与产业界合作;通过加速和孵化支持创新;教育和鼓励广以社区的创新和创业精神,助推以色列技术在大湾区的商业化和孵化,积极推动科技成果对接本地产业。
2021年12月,在中国创新创业成果交易会上,广以有9项科研成果首次入选参与展示,以寻求潜在的产业合作伙伴。目前已经拥有7项产业技术合作项目,签订3项创新平台合作备忘录。同时,广以积极响应人才服务企业的号召,目前共有25位教师及科研人员入库2021年度广东省科技厅企业科技特派员项目,占比汕头地区总数的40%。此外,广以在科学研究平台建设取得新突破。2021年,由谭教授领衔的广东省能源转换材料与技术重点实验室入选广东省重点实验室,是广以首个获得认定的省级科研平台。
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Recently, the patent titled “Electrode for Supercapacitor, Preparation Method and Use Thereof” has been granted to GTIIT in the US and received the notice of allowance. Professor Daniel Tan is the first name inventor. This is GTIIT’s first overseas patent and the first Invention Patent.
By December 2021, there is 1 national patent granted by the State Intellectual Property Office to GTIIT and 13 patents at the examination stage, five among which are international patents. The number of total patent filings in 2021 has increased by 75%.
“The patent is an electrode for supercapacitor. It has great importance to develop electrode material which can be used for preparing capacitors with energy density and good cycle stability,” Professor Tan said. In the Dielectric and Electrochemical Lab, he was explaining the principle of this invention to the student. He told us that it is related to the field of electrochemistry and can be applied to the fields of aerospace, automobile industry, consumer electronics and so on.
A supercapacitor, also called an electrochemical capacitor can recover energy from many repetitive processes, such as vehicle braking or wind turbine pitch systems. In addition, the supercapacitor has been successfully applied to the fields of national defence, aerospace, automobile industry, consumer electronics, communication, electric power, railway and the like, because it has many advantages such as high capacity, high energy density, high charge-discharge current and long cycle lifetime. Its applications are still expanding.
In a conventional supercapacitor, the apparatus operating voltage usually ranges from 2.5 to 3 V and is also the breakdown voltage thereof. As the electrolyte charges are further consumed, the electrolyte is further degraded, resulting in reduced capacitance, increased impedance, reduced energy density, as well as shortened supercapacitor lifetime.
According to prof. Tan, the new electrode weakens the issues of the interface between the electrolyte and the electrode surface by providing a coating layer on the surface of the active layer and the operating voltage window and capacitance of the electrochemical container can be further significantly increased.
This project is GTIIT’s first US patent and the first Invention Patent. It has been granted to GTIIT in US and received the notice of allowance.
“The black part is the electrode,” prof. Tan showed a sample in the Computational Materials Science Lab.
In the lab, a machine was testing the capacity and lifetime of the electrode. “GTIIT attaches great importance to students’ innovation and entrepreneurship. As the researchers, we build up our research team and labs accordingly.” Daniel Tan is a professor of Technion - Israel Institute of Technology, he was also appointed as the professor of GTIIT as the Deputy Head of Materials Science and Engineering. He said that the patent was developed for four to five years and is now in cooperation with some companies in the country.
GTIIT’s first patent granted by the State Intellectual Property Office is “Soil Heavy Metal Remediation Device”. “GTIIT’s patent portfolio is increasing rapidly, with patents granted and pending in China and overseas.” Mr. Raanan Adin, Senior Consultant to Vice-President for Innovation and Industry Relations, introduced that in 2021, Guangdong Technion Technology Entrepreneurship Center (GTEC) was established. GTEC is responsible for 4 main functions:
Identify research results that have commercial value, register them as patents and find industries that can use them;
Collaborate with industry in research and development projects;
Support innovation through accelerator and incubator programs;
Educate and encourage innovation and entrepreneurship by training and consulting to industry and government.
In December 2021, 9 projects from GTIIT teachers and students focused on low-carbon, scientific and technological intelligence, etc. had a great performance in the China Innovation and Entrepreneurship Fair (CIEF) 2021. GTIIT has had 7 technical cooperation projects with industries and signed 3 Memoranda of Cooperation on Innovation Platforms. There were 25 outstanding teachers and researchers selected as the “2021 Guangdong Enterprises’ Science and Technology Commissioners”, accounting for 40% of those in Shantou. Besides, GTIIT has made new breakthroughs in constructing research platforms. In 2021, Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion undertaken by GTIIT becomes the first provincial-level research platform being recognized by the Guangdong Provincial government.
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文/图来源:汕头融媒集团
Text/Photos: Shantou Media Group
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