
摘要:制备具有高孔隙率、高热稳定性、高离子传导性以及优异机械性能和高储存模量的电解质是当今锂离子电池研究领域的热点问题,但是使用单一聚合物基质基本无法满足这些特性,向单一聚合物电解质中添加无机纳米粒子,制备复合电解质是一种简便的、有效的途径制备综合性能优异的电解质体系。无机纳米粒子不仅能够改善聚合物电解质的物理特性,而且还能够抑制锂枝晶的生长,提升电池的循环性能。本文详细讨论了无机纳米颗粒在锂离子电池电解质改性中的应用,包括无机纳米颗粒的填充、涂覆、原位生成以及填充非织造电解质等;为进一步研究和开发具有机械稳定性、化学惰性和优异电化学性能的新型复合电解质体系提供了新的思路和方向。
Abstract: The preparation of polymer electrolytes with high porosity, high thermal stability, high ion conductivity, excellent mechanical properties and high storage modulus is an urgent problem to be solved today. These properties are not easily achieved using a single polymer. The addition of inorganic nanoparticles is one of the methods to achieve an ideal polymer electrolyte. The inorganic nanoparticles not only improve the physical properties of the polymer electrolyte, but also inhibit the growth of lithium dendrites, thereby improving the cycle life of the battery. In this paper, the application of inorganic nanoparticles in electrolyte modification of lithium ion batteries is discussed in detail, including the filling, coating, in situ formation and filling of non-woven electrolytes of inorganic nanoparticles. It provides a new ideas and directions for further researching and developing new lithium ion electrolytes with mechanical stability, chemical inertness and excellent electrochemical performance.
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