• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议> >Inexpensive Flow Batteries Based on Organic Redox Couples
【24h】

Inexpensive Flow Batteries Based on Organic Redox Couples

机译：基于有机氧化还原对的廉价液流电池

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Batteries for large-scale energy storage must be inexpensive, robust, environmentally friendly and sustainable. To this end, we have focused on developing an aqueous flow battery that uses organic redox couples that have the potential to meet the demanding cost, durability, eco-friendliness, and sustainability requirements for grid-scale electrical energy storage. In this battery two different aqueous solutions of organic redox substances such as "quinones" are circulated past electrodes. The positive and negative electrodes are separated by a polymer electrolyte membrane. By choosing the appropriate quinone compounds a redox potential as high as 1.0 V can be achieved. One of the advantages of this organic redox flow battery is that it does not need any heavy metals such as vanadium, chromium or zinc. Additionally, the volatile organic solvents such as those used in lithium batteries are avoided. While redox properties of a variety of organic compounds such as quinones have been known to electrochemists for many years, hardly a handful of these couples have been exploited in batteries. To our knowledge none of these couples have been considered for a large-scale, inexpensive and eco-friendly energy storage system. The quinones have a charge capacity in the range of 200-490 Ah/kg, and cost about $5-10/kg or $10-20/kWh, leaving ample scope for achieving the DOE-mandated target of $100/kWh for the entire battery system. We present preliminary results on quinones that exhibit good reversibility in acidic media. An organic redox flow battery using two different quinones shows repeated rechargeability at high charge and discharge rates. We will present results on the electrochemical properties of various quinones in acidic media in an electrochemical half-cell and in full redox flow cells.
机译：大规模储能电池必须便宜，坚固，环保和可持续。为此，我们专注于开发使用有机氧化还原电对的水流电池，该电对有潜力满足电网规模储能的苛刻成本，耐用性，生态友好性和可持续性要求。在该电池中，有机氧化还原物质（例如“醌”）的两种不同水溶液通过电极循环。正电极和负电极由聚合物电解质膜隔开。通过选择合适的醌类化合物，可以实现高达1.0 V的氧化还原电位。这种有机氧化还原液流电池的优点之一是它不需要任何重金属，例如钒，铬或锌。另外，避免使用挥发性有机溶剂，例如锂电池中使用的那些。尽管电化学家已经知道多种有机化合物（例如醌）的氧化还原特性，但这些对中的极少数几乎没有被用于电池中。据我们所知，这些夫妇中没有一个被考虑用于大规模，廉价且环保的储能系统。醌的充电容量在200-490 Ah / kg的范围内，成本约为5-10 / kg或10-20 / kWh，这为实现DOE规定的整个电池100美元/ kWh的目标留有足够的空间。系统。我们目前对在酸性介质中表现出良好可逆性的醌类化合物进行初步研究。使用两种不同醌的有机氧化还原液流电池在高充放电速率下显示出重复的可充电性。我们将介绍在电化学半电池和全氧化还原流通池中的酸性介质中各种醌的电化学性质的结果。

著录项

  • 来源
    《》|2013年|390-390|共1页
  • 会议地点 Fairmont CA(US)
  • 作者

    Bo Yang; Lena Hoober-Burkhardt; G. K. Surya Prakash; S. R. Narayanan;

  • 作者单位

    Loker Hydrocarbon Institute, Department of Chemistry, University of Southern California, Los Angeles, CA 90089;

    Loker Hydrocarbon Institute, Department of Chemistry, University of Southern California, Los Angeles, CA 90089;

    Loker Hydrocarbon Institute, Department of Chemistry, University of Southern California, Los Angeles, CA 90089;

    Loker Hydrocarbon Institute, Department of Chemistry, University of Southern California, Los Angeles, CA 90089;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号