Design Principles of Functional Polymer Separators for High‐Energy, Metal‐Based Batteries,Small

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Design Principles of Functional Polymer Separators for High‐Energy, Metal‐Based Batteries
Small ( IF 13.0 ) Pub Date : 2017-12-27 , DOI: 10.1002/smll.201703001
Weidong Zhang ₁ , Zhengyuan Tu ₂ , Jiawei Qian ₁ , Snehashis Choudhury ₃ , Lynden A. Archer _{2,

3} , Yingying Lu ₁

Affiliation

Next‐generation rechargeable batteries that offer high energy density, efficiency, and reversibility rely on cell configurations that enable synergistic operations of individual components. They must also address multiple emerging challenges,which include electrochemical stability, transport efficiency, safety, and active material loss. The perspective of this Review is that rational design of the polymeric separator, which is used widely in rechargeable batteries, provides a rich set of opportunities for new innovations that should enable batteries to meet many of these needs. This perspective is different from the conventional view of the polymer separator as an inert/passive unit in a battery, which has the sole function to prevent direct contact between electrically conductivecomponents that form the battery anode and cathode. Polymer separators, which serve as the core component in a battery, bridge the electrodes and the electrolyte with a large surface contact that can be utilized to apply desirable functions. This Review focuses specifically on recent advances in polymer separator systems, with a detailed analysis of several embedded functional agents that are incorporated to improve mechanical robustness, regulate ion and mass transport, and retard flammability. The discussion is also extended to new composite separator concepts that are designated traditionally as polymer/gel electrolytes.

中文翻译：

高能金属基电池的功能性聚合物隔膜的设计原理

具有高能量密度，效率和可逆性的下一代可充电电池依赖于可实现单个组件协同运行的电池配置。它们还必须解决多个新出现的挑战，包括电化学稳定性，运输效率，安全性和活性物质损失。这篇评论的观点是，聚合物隔膜的合理设计（广泛用于可再充电电池中）为应使电池满足其中许多需求的新创新提供了丰富的机会。该透视图不同于聚合物隔板作为电池中的惰性/无源单元的常规视图，该聚合物隔板具有防止形成电池阳极和阴极的导电组分之间直接接触的唯一功能。聚合物隔膜是电池的核心组件，它通过较大的表面接触将电极和电解质桥接在一起，可利用该表面施加所需的功能。这篇评论特别关注聚合物分离器系统的最新进展，对几种嵌入的功能性试剂进行了详细的分析，这些功能性试剂可改善机械强度，调节离子和质量的传输并延缓可燃性。讨论也扩展到了新的复合隔板概念，传统上称为聚合物/凝胶电解质。详细分析了几种嵌入的功能性试剂，这些功能性试剂可改善机械强度，调节离子和质量传递并降低可燃性。讨论也扩展到了新的复合隔板概念，传统上称为聚合物/凝胶电解质。详细分析了几种嵌入的功能性试剂，这些功能性试剂可改善机械强度，调节离子和质量传递并降低可燃性。讨论也扩展到了新的复合隔板概念，传统上称为聚合物/凝胶电解质。

更新日期：2017-12-27

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