Page 21 - 《精细化工》2022年第2期
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第 39 卷第 2 期                             精   细   化   工                                  Vol.39, No.2
             2022 年 2 月                              FINE CHEMICALS                                  Feb.  2022


              综论
                          聚合物基镁离子固态电解质的研究进展



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                                      费贵强,孙丽丽,舒珂维 ,王海花
                               (陕西科技大学  陕西省轻化工助剂重点实验室,陕西  西安  710021)


                 摘要:镁离子电池因其比容量高、资源丰富、环境友好、安全性高(无枝晶)等优势,在储能电池领域脱颖而
                 出。然而,镁金属负极在液态电解质中易钝化,导致其电化学性能不佳。因此,开发高效适用的固态电解质对
                 实现高性能、实用化镁离子电池至关重要。聚合物电解质具有优异的机械稳定性、电化学稳定性、热稳定性且
                 离子电导率高、成本低。但镁离子较高的电荷密度和较强的溶剂化作用限制了其在固态电解质中的解离与扩散。
                 从纯固态聚合物电解质、凝胶聚合物电解质、复合聚合物电解质 3 个方面综述了国内外聚合物基镁离子固态电
                 解质的离子电导率对解决镁金属负极钝化效应的贡献及其应用研究进展,指出聚合物基镁离子固态电解质当前
                 面临的挑战并对其研究方向进行了建议和展望。
                 关键词:镁离子电池;固态电解质;聚合物基固态电解质
                 中图分类号:O646;TM911      文献标识码:A      文章编号:1003-5214 (2022) 02-0225-11


                   Research progress of polymer-based magnesium ion solid electrolytes


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                                    FEI Guiqiang, SUN Lili, SHU Kewei , WANG Haihua
                 (Shaanxi Key  Laboratory of  Chemical Additives for Industry, Shaanxi University of Science  & Technology, Xi'an
                 710021, Shaanxi, China)

                 Abstract: Magnesium-ion batteries emerge as a promising candidate in the energy storage field due to their
                 high specific  capacity, rich resources, environmental friendliness and excellent safety (dendrite-free).
                 However, the magnesium metal anodes are easily passivated in the liquid electrolyte, resulting in the poor
                 electrochemical performance. Therefore, the development of efficient and applicable solid electrolytes is
                 important  to achieve high performance  practical  magnesium  ion batteries. Polymer  electrolytes had
                 mechanical stability, electrochemical stability, thermal stability, high ionic conductivity and low  cost.
                 However, the  high charge  density and strong solvation  of magnesium ions limit their  dissociation and
                 diffusion in solid electrolytes. From three aspects, including pure solid polymer electrolyte, gel polymer
                 electrolyte and composite polymer electrolyte, the contribution  of ionic conductivity of  polymer-based
                 magnesium ion solid electrolytes at home and abroad to solve the passivation effect of magnesium metal
                 anodes and the research progress of application of polymer-based magnesium ion solid electrolytes at home
                 and abroad are reviewed. The current challenges  of  polymer based magnesium ion  solid electrolyte are
                 pointed out and its research direction is suggested and prospected.
                 Key words: magnesium ion batteries; solid electrolytes; polymer-based solid electrolytes


                                                                                  [3]
                 随着全球能源需求的日益高涨以及传统化石燃                          泛应用于储能设备中 。然而,锂资源在地壳中储
            料的使用导致环境恶化,绿色储能系统的研发受到                             量并不丰富(地壳中含量约为 0.0065%),而且分布
                                                                                               [4]
            人们的高度重视        [1-2] 。锂离子电池由于具有能量密度                极不均匀(约 73%分布在南美洲) 。全球锂储量
            高、循环使用寿命长、充放电速率快等优点,被广                             约 5300 万 t,中国仅占 13.2%,绝大部分为盐湖卤

                 收稿日期:2021-08-13;  定用日期:2021-11-11; DOI: 10.13550/j.jxhg.20210818
                 基金项目:国家自然科学基金面上项目(21978164,22078189);国家自然科学基金青年科学基金项目(22105120);陕西省创新团队
                 项目(2018TD-015);陕西省杰出青年基金项目(2021JC-46);陕西省青年拔尖人才项目
                 作者简介:费贵强(1980—),男,博士,教授,E-mail:feiguiqiang@sust.edu.cn。联系人:舒珂维(1986—),男,博士,副教授,
                 E-mail:shukw@sust.edu.cn;王海花(1982—),女,博士,教授,E-mail:whh@sust.edu.cn。
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