第6期丁亮等：基于细菌纤维素的阳离子交换膜在水系有机液流电池中的应用研究-7
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Bacterial cellulose based cation exchange membranes for
aqueous organic flow battery
DING Liang,HOU J ianqiu,YANG Zheng j in,WU Liang,XU Ton g iven (University of Science and Technology of China,Hefei230041,China)
袁立年龄Abstract:Due to the wide range of raw materials,safety and stability,aqueous organic flow batteries are expected to become the next generation of wind energy and solar energy storage devices.If researchers can develop cheap and environmentally-friendly cellulose membranes,then the large-scale development of aqueous organic flow batteries could be developed.However,considering the insufficient retention cap
acity of the conventional cellulose membrane,they may cause cross-contamination of the positive and negative electrolytes if they are used directly.In order to solve this problem,bacterial cellulose was chosen as the skeleton and introduced copolymers of sodium styrene sulfonate and styrene into the skeleton by insitu polymerization to increase the density.In this way,positive charges can be introduced and finally make cation exchange membranes are prepared.The membrane was applied to a quinone system flow battery with a maximum power density of185mW/cm2.After200cycles of continuous charge and discharge cycles,the coulombic efficiency and energy efficiency maintained99%and80%of initial value, respectively.The average capacity retention of per revolution was99.81%,which is comparable to Nafion membranes performance.By adjusting the concentration of the active electrolyte,it was found that the permeaionofThenegaiveelecTrodeelecTrolyTeisThemaincauseofThecapaciydecay.
Key words:ion exchange membrane；energy storage technology；bacterial cellulose；aqueous organic flow battery
新晋院士柴立元简介
得者，国家863计划资源环境技术领域主题专家,“万人计划”领军人才，教育部科技委环境与土木水利学部委员.中南大学冶金与环境学院长、国家重金属污染防治工程技术研究中心主任.国家重点领域创新团队、教育部长江学者创新团队及全国黄大年式教师团队带头人.东亚资源再生技术会议国际组委会中国方主席，应对联合国环境规划署汞问题政府间谈判专家组专家.曾获“全国先进工作者”、“何梁何利基金奖”、“宝钢优秀教师特等奖”等荣誉称号,2017年当选中国共产党十九大代表。2019年当选中国工程院院士.
长期从事有冶金环境工程领域的研究.主持国家重点研发计划、国家自然科学基金重点项目、水体污染控制与治理国家重大专项子课题等科研项目50余项；发表SCI收录论文300余篇，出版著作11部，获授权国家发明专利100余项；编制国家及地方技术政策、规范及标准等30余项。发明的重金属废水深度净化与回用新工艺、有冶炼含碑固废治理与清洁利用技术、冶炼多金属废酸资源化治理关键技术等多项技术成果实现大规模产业化，在我国大中型涉重金属企业广泛应用.作为第一完成人获国家技术发明二等奖2项、国家科技进步二等奖1项、省部级科技一等奖8项.
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