全钒液流电池用非氟离子传导膜的研究进展
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- 英文论文题名：Non-perfluorinatedion conducting membranesfor VFB Application
- 论文作者：李先锋 ; 张华民
- 英文论文作者：Xianfeng Li ; Huamin Zhang ; Division of energy storage ; Dalian Institute of Chemical Physics ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院大连化学物理研究所;
- 论文关键词：大规模储能 ; 全钒液流电池 ; 非氟离子交换膜 ; 多孔离子传导膜
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十九分会：电化学材料
- 语种：中文
- 分类号：TM912
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十九分会 ; 电化学材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：271k
- 原文格式：D
- 会议级别：全国
摘要
大规模储能技术是解决可再生能源发电系统不连续、不稳定特征的关键瓶颈技术,是国家能源战略和能源安全的重大需求。全钒液流电池储能技术因其使用寿命长、储能规模大、电池均匀性好、安全可靠、环境友好等特点,已成为大规模储能的首选技术之一~([1])。隔膜是全钒液流电池(VFB)的关键材料之一,其物化性能与成本直接影响电池系统的性能和成本。目前VFB常用的商品化全氟磺酸离子膜存在钒离子阻隔能力偏低、价格昂贵等问题;而传统的非氟离子交换膜存在氧化稳定性较差的问题~([2]),极大限制了其在VFB中的大规模商业化应用。为突破该瓶颈,我们从VFB基本原理出发,原创性的提出了膜材料中不含离子交换基团的"离子筛分传导"概念,将多孔离子传导膜引入到液流电池,采用多孔隔膜的孔径筛分效应和电荷排阻效应,实现对钒离子和质子的选择性筛分(Fig.1),实现了其在液流电池中的应用,从根本上解决了非氟离子交换膜由于离子交换基团的引入多导致稳定性低的问题。本报告将详细介绍大连化物所非氟离子传导膜的研究进展。
Increasing attention for large scale energy storage has recently emergedfor utilization and integration of renewable energy sources. Vanadium flow batteries(VFBs) are regarded as the ideal choices for such large scale energy storage. Demonstrations in different application fields have recently confirmed the availability of VFBs for large scale energy storage. However, the commercial progress of VFBs has so far been limited by the high costand low selectivity of the applied perfluorinated membranes. Thus, considerable efforts have been devoted to searching for a high performance membrane based on non-fluorinated polymers. However, current non-fluorinated ion exchange membraneshave a too low chemical stability. To address this challenge, Nanofiltration membranes, which was to separate the larger vanadium ions from the small protons via pore size exclusion, were firstly introduced in VFBs.
Increasing attention for large scale energy storage has recently emergedfor utilization and integration of renewable energy sources. Vanadium flow batteries(VFBs) are regarded as the ideal choices for such large scale energy storage. Demonstrations in different application fields have recently confirmed the availability of VFBs for large scale energy storage. However, the commercial progress of VFBs has so far been limited by the high costand low selectivity of the applied perfluorinated membranes. Thus, considerable efforts have been devoted to searching for a high performance membrane based on non-fluorinated polymers. However, current non-fluorinated ion exchange membraneshave a too low chemical stability. To address this challenge, Nanofiltration membranes, which was to separate the larger vanadium ions from the small protons via pore size exclusion, were firstly introduced in VFBs.
引文
[1]X.Li,H.Zhang,Z.Mai,H.Zhang and I.Vankelecom,Energy Environ.Sci.,2011,4,1147-1160.
[2]Z.Yuan,X.Li,J.Hu,W.Xu,J.Cao and H.Zhang,Phys.Chem.Chem.Phys.,2014,16,19841-19847.
[2]Z.Yuan,X.Li,J.Hu,W.Xu,J.Cao and H.Zhang,Phys.Chem.Chem.Phys.,2014,16,19841-19847.