Yang Peihua, Yang Jin-Lin, Liu Kang, Fan Hong Jin
The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China.
School of Physical and Mathematical Science, Nanyang Technological University, Singapore 637371.
ACS Nano. 2022 Oct 25;16(10):15528-15536. doi: 10.1021/acsnano.2c07468. Epub 2022 Sep 21.
The growing trend of intelligent devices ranging from wearables and soft robots to artificial intelligence has set a high demand for smart batteries. Hydrogels provide opportunities for smart batteries to self-adjust their functions according to the operation conditions. Despite the progress in hydrogel-based smart batteries, a gap remains between the designable functions of diverse hydrogels and the expected performance of batteries. In this Perspective, we first briefly introduce the fundamentals of hydrogels, including formation, structure, and characteristics of the internal water and ions. Batteries that operate under unusual mechanical and temperature conditions enabled by hydrogels are highlighted. Challenges and opportunities for further development of hydrogels are outlined to propose future research in smart batteries toward all-climate power sources and intelligent wearables.
从可穿戴设备、软体机器人到人工智能，智能设备的发展趋势日益增长，这对智能电池提出了很高的要求。水凝胶为智能电池提供了根据运行条件自我调节功能的机会。尽管基于水凝胶的智能电池取得了进展，但各种水凝胶的可设计功能与电池的预期性能之间仍存在差距。在这篇综述中，我们首先简要介绍水凝胶的基本原理，包括其形成、结构以及内部水和离子的特性。重点介绍了由水凝胶实现的在异常机械和温度条件下运行的电池。概述了水凝胶进一步发展面临的挑战和机遇，以提出未来在智能电池方面朝着全气候电源和智能可穿戴设备的研究方向。
