Development of integrated and flexible thermoelectric micro generators (MiTEG)

开发集成灵活的热电微型发电机（MiTEG）

• 批准号: 417306425
• 负责人: Dr. Uwe Pelz
• 金额: --
• 依托单位: Institut für Metallische Werkstoffe
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/417306425?language=en
• 关键词: Development; integrated; flexible; thermoelectric; micro

Thermoelectric microgenerators (μTEGs) are able to convert small temperature differences, e.g. between the outside of a warm machine housing and the ambient, into electrical energy. This so-called "thermoelectric energy harvesting" can be used for powering energy autonomous, embedded systems, e.g. Internet of Things (IoT) applications or sensor nodes used for environmental monitoring. The use of such autonomous wireless systems eliminates the maintenance required for extensive cabling or battery replacement. The present project addresses the lack of availability of thermoelectric micro-generators through two complementary, modular approaches towards cost-effective fabrication: a) electrochemical deposition of metallic materials with high power factors; and b) dispensing / printing nanostructured TE materials in the form of dispersions and pastes into scalable, pre-structured substrates. The processes are partly complemented by sintering and thermal annealing processes to obtain highly efficient TE materials. Following the idea of a modular manufacturing process, the processes can also be combined, which will be shown for contacting the TE materials. The present project has three main objectives: a) to investigate novel or optimized thermoelectric materials with high power factors as well as their methods of deposition and processing, to produce high quality thermoelectric legs; b) Development of efficient, materials wise flexible and cost-effective manufacturing processes for μTEGs; c) Demonstration of application scenarios, as preliminary work for subsequent transfer projects with industrial partners. The project is based on the applicants many years of experience in the field of thermoelectrics especially in the area of electrochemical deposition of TE materials as well as paste, dispensing and grinding processes. In addition, the applicants have access to the fabrication and measuring facilities of the respective professorships of which they are part, as well as their know-how. The long-term vision of the project is the cost-effective production of variable, highly efficient μTEGs to meet the future (potentially) high demand for small, maintenance-free and universal energy sources for IoT applications.

热电微型发电机(μteg)能够将微小的温差转换为电能，例如温暖的机壳外部和环境之间的温差。这种所谓的热电能量采集可用于为能源自主的嵌入式系统供电，例如用于环境监测的物联网(IoT)应用或传感器节点。这种自主无线系统的使用消除了广泛布线或更换电池所需的维护。本项目通过两种互补的模块化方法解决缺乏微型热电发电机的问题，以实现成本效益高的制造：a)高功率因数金属材料的电化学沉积；b)将纳米结构TE材料以分散体和浆料的形式分配/印刷到可伸缩的预结构衬底中。这些工艺与烧结和热退火工艺部分互补，以获得高效的TE材料。遵循模块化制造工艺的思想，这些工艺也可以组合在一起，这将显示为接触TE材料。本项目有三个主要目标：a)研究新型或优化的高功率因数热电材料及其沉积和加工方法，以生产高质量的热电支路；b)开发高效、材料明智、灵活和成本效益高的μTeg制造工艺；c)演示应用场景，作为后续与行业合作伙伴转移项目的前期工作。该项目基于申请者在热电领域的多年经验，特别是在TE材料的电化学沉积以及浆料、点胶和研磨过程方面的经验。此外，申请者可以使用他们所在的各个教授职位的制造和测量设施，以及他们的技术诀窍。该项目的长期愿景是以成本效益的方式生产可变、高效的μ测试仪，以满足未来对物联网应用的小型、免维护和通用能源的(潜在)高需求。