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在单离子导体聚合物网络中同时具有高离子导电性和离子转移数,使固态电池能够快速充电

Yongyin Wang¹, Qiyue Sun¹, Junlong Zou¹

¹Key Laboratory for Biobased Materials and Energy of Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|June 28, 2023

概括

一种新的单离子导电网络聚合物电解质 (SICNP) 能够在固态电池中快速充电. 这种材料实现了高离子导电性和离子转移数,这对于先进的电池性能至关重要.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
聚合物科学聚合物科学

背景情况:

开发固态电解质是先进电池的关键.
固体聚合物电解质提供界面兼容性,但与高离子导电性和离子转移作斗争.
实现高离子导电率和转移数都是一个关键的瓶.

研究的目的:

开发一个单离子导电网络聚合物电解质 (SICNP) 用于快速充电的固态电池.
为了克服传统固体聚合物电解质的局限性.
为了实现高离子导电性和转移数的快速离子运动.

主要方法:

一个单离子导电网络聚合物电解质 (SICNP) 的设计和合成.
离子导电性和离子转移数的实验性表征.
理论模拟以了解离子运输机制.
用各种阴极制造的固态电池的制造和测试.

主要成果:

在室温下,SICNP具有高离子导电性 (1.1 × 10−3 S cm−1) 和高离子转移数 (0.92).
聚合物网络结构促进了快速的离子跳跃和高电荷解离.
使用SICNP的固态电池显示出出色的高循环率 (95%在5°C保持1000个循环) 和快速充电能力 (6分钟充电).

结论:

开发的SICNP是一种有前途的固态电解质,用于快充电池.
材料设计克服了离子导电性和转移数的关键瓶.
这项工作为高性能固态电解质提供了新的方向.

关键词:

快速充电快速充电快速充电高速性能的高率性能.离子动力学离子动力学聚合物电解质设计的设计固态电池固态电池

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