合作类型：技术     行业类别: 航空和航天   过期时间：2016年10月09日    

西班牙一家研究中心已设计出一种氧化还原液流电池，可适用于分布式能源发电的固定能量贮存，运用于风力或太阳能发电场。

英文原文：A Spanish non-profit research center from Madrid has designed a Redox flow battery (RFB) based on a natural aqueous electrolyte of quinone and vanadium redox pairs. This device suits well with the requirements of stationary energy storage in Distributed Energy Generation, coupled to renewable energies, such as wind or solar farms. It is sought companies with expertise and facilities to produce batteries and/or in the management of fluids for license and technology cooperation agreements. Redox flow batteries (RFBs) are energy storage devices with power density which can reach10 MW, energy density up to 50 Wh/kg (power and energy can be independently tuned) and cycling life of more than 10 years. They are thus suited for stationary applications, as energy storage system in wind and solar farms. The most developed ones use vanadium redox pairs for energy storage, and their main weaknesses come from their high costs (more than 30% of the battery cost comes from the vanadium, and the cost of the battery for 30 kWh is around 5000 Euros). Environmental concerns on vanadium use are a disadvantage. RFBs consist on two different electrolytes which are stored in tanks and pumped to the reaction cell for energy storage and release. Costs can be reduced by using cheaper components. Some of the most expensive parts are the vanadium redox pairs. Alternative redox pairs are used, even in non aqueous electrolytes, but they have not yet reached the performances of vanadium. Key parameters are the electrochemical redox potential difference between the two redox pairs, which shall be as high as possible to reach the highest possible energy density, and also the solubility of the redox pair, which shall also be maximised. Non-liquid redox pairs might also be used, but complications on gas handling, reversibility, etc. have not yet been able to compete with liquid electrolytes. In addition, the toxicity of vanadium is a concern. The redox pairs proposed here are natural products, and thus biodegradable and designed to degrade upon disposal by enzymatic or non-enzymatic action. The redox flow battery proposed combines the following advantages: 1 - Environmentally friendly and cost competitive aqueous redox pairs based on quinonic natural products. 2 - Operating voltage improved compared to vanadium. 3 - Increased quinone water solubility. 4 – Improved energy densities (>10 Wh/kg). 5 – Improved power density compared to vanadium. 6 – Long cycle life. - Environmentally friendly, cost competitive, and highly water soluble redox pairs based on natural products with quinonic moieties. - Electrochemical potentials can be easily tuned by introducing suitable substituents in the aromatic rings, thus reaching competitive energy densities. - The electrochemical performance of quinones in aqueous media is kept, thus reversibility (cycle life) and power density can be competitive. Companies with expertise and infrastructures for manufacturing redox flow batteries cells and modules. Expertise in fluids and plastics is also valuable since tanks, piping, and pumps made of plastic are needed for redox flow battery construction. The manufacturing process will include: 1 Tank and piping fabrication, including joining and jointing 2 Cell fabrication, including forming 3 Electrode stacking 4 Electrolyte filling and management