Sodium Hyaluronate: A Versatile Polysaccharide towards Intrinsically Self-Healable Energy-Storage Devices
Sodium Hyaluronate: A Versatile Polysaccharide towards Intrinsically Self-Healable Energy-Storage Devices
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透明质酸钠：一种多功能多糖，用于本质上可自愈的能量存储设备
DOI：
10.1021/acsami.8b21144
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发表时间：
--
影响因子：
9.5
通讯作者：
Pan Qinmin
中科院分区：
文献类型：
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作者：
Tao Feng;Qin Liming;Chu Ying;Zhou Xin;Pan Qinmin
自修复性是针对柔性/可穿戴电子产品的下一代能量存储设备的有吸引力的特征。然而，实现自我修复通常涉及复杂的分子设计和合成过程。在这里，我们证明了透明质酸钠（SH），一种天然多糖，可以作为一种通用的聚合物，以方便制造内在的自我修复的能量存储设备。通过将其电活性组分集成到通过硼酸酯键交联的动态SH网络中，制备了自修复钠离子电池和不对称电容器。即使经过9次断裂/愈合循环，这些器件也能自动恢复其结构完整性、微观结构以及机械和电化学性能，表现出出色的可靠性、易于维护和上级安全性。在现有的自修复储能器件中，其电化学性能和自修复能力是最好的。这种简单而通用的策略可能会大大加快适用于先进柔性电子或软机器人等的智能和鲁棒储能器件的设计和制造。
Self-healability is an attractive feature for next-generation energy-storage devices aiming at flexible/wearable electronics. However, realizing self-healability usually involves complicated molecular design and synthetic processes. Here, we demonstrate that sodium hyaluronate (SH), a kind of natural polysaccharide, can be used as a versatile polymer to facile fabricate intrinsically self-healable energy-storage devices. Self-healable sodium ion batteries and asymmetric capacitors are fabricated by integrating their electroactive components into dynamic SH networks cross-linked via borate ester bonding. The devices autonomously recover their configuration integrity, microstructure, and mechanical and electrochemical properties even after nine cycles of breaking/healing, exhibiting excellent reliability, easy maintenance, and superior safety. The electrochemical performances and self-healability are estimated to be the best among those of the existing self-healable energy-storage devices. This facile and versatile strategy might greatly accelerate the design and fabrication of smart and robust energy-storage devices applicable for advanced flexible electronics or soft robot, and so on.