Development of novel supercapacitor-battery hybrid systems for renewable energy storage

开发用于可再生能源存储的新型超级电容器-电池混合系统

• 批准号: RGPIN-2022-03562
• 负责人: Barz, Dominik
• 金额: $ 3.35万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=747113
• 关键词: Development; novel; supercapacitor; battery; hybrid

The energy sector is one of the largest carbon dioxide emitters and the integration of renewable energy into the electrical power generation economy is a promising strategy to reduce carbon emissions. However, renewable energy sources such as wind and solar are irregular and do not only vary over short times but also over long periods. Hence, energy from renewables, which is not immediately consumed, must be stored until it is used and supplied when required. Batteries can store and dispense relatively large amounts of energy, but they don't work well at high electrical power rates. In contrast, supercapacitors can handle large power rates but do not store a lot of energy. Hence, both candidates are not ideal to support the integration of renewable sources into the grid. This proposal is concerned with the development of a novel class of hybrids which combine the energy storage mechanisms of supercapacitors and battery. In an ideal demonstration, such a hybrid can store large amounts of energy like a battery and handle high power rates like a supercapacitor. These features make it an ideal energy storage device for the integration of renewable energy sources in the existing electricity grid. We propose the combination of high-surface area electrodes with a non-aqueous electrolyte which allows for the supercapacitor-like operation of the hybrid. The non-aqueous electrolyte also contains a redox species - a chemical agent which can be electrochemically converted - which grants the battery-like mechanisms to the hybrid. The hybrid development is accompanied by investigation of the underlying fundamentals. In detail, we will explore charge and mass transfer in confined geometries as we find them in batteries, supercapacitors and their hybrids. From the derived understanding, we can develop guidelines for design improvements of future devices to make them more efficient. The research also trains nine Highly Qualified Personnel and contributes to Canada's economic future.

能源部门是最大的二氧化碳发射器之一，将可再生能源整合到电力发电经济中是减少碳排放的有前途的策略。但是，可再生能源（例如风能和太阳能）是不规则的，不仅在短时间内有所不同，而且在长期内也有所不同。因此，不立即消耗的可再生能源能量必须存储，直到需要在需要时使用和提供。电池可以存储和分配相对较大的能量，但它们在高电源速率方面的运行不佳。相比之下，超级电容器可以处理较大的电源速率，但不能存储很多能量。因此，两个候选人都不是支持可再生能源集成到网格中的理想选择。该提案涉及一类新型杂种的发展，这些混合动力车结合了超级电容器和电池的能源存储机理。在理想的演示中，这样的混合动力车可以存储大量的能量，例如电池，并处理像超级电容器这样的高功率速率。这些功能使其成为将可再生能源集成在现有电网中的理想储能设备。我们提出了高表面区域电极与非水电解质的组合，该电极允许杂种的超级电容器样操作。非水电解质还含有一种氧化还原物种 - 一种可以通过电化学转换的化学剂 - 将电池样机制授予混合动力。 混合发展伴随着对基本基本面的调查。详细说明，我们将在电池，超级电容器及其混合动力车中发现，探索限制几何形状的电荷和传质。从派生的理解中，我们可以制定未来设备设计改进的指南，以使其更有效。该研究还培训了9名高素质的人员，并为加拿大的经济未来做出了贡献。