当前位置: X-MOL 学术Acc. Chem. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Lithium–Air Batteries: Air-Electrochemistry and Anode Stabilization
Accounts of Chemical Research ( IF 18.3 ) Pub Date : 2021-01-15 , DOI: 10.1021/acs.accounts.0c00772
Kai Chen 1, 2 , Dong-Yue Yang 1, 2 , Gang Huang 1 , Xin-Bo Zhang 1, 2
Affiliation  

It is a permanent issue for modern society to develop high-energy-density, low-cost, and safe batteries to promote technological innovation and revolutionize the human lifestyle. However, the current popular Li-ion batteries are approaching their ceiling in energy density, and thus other battery systems with more power need to be proposed and studied to guide this revolution. Lithium–air batteries are among the candidates for next-generation batteries because of their high energy density (3500 Wh/kg). The past 20 years have witnessed rapid developments of lithium–air batteries in electrochemistry and material engineering with scientists’ collaboration from all over the world. Despite these advances, the investigation on Li–air batteries is still in its infancy, and many bottleneck problems, including fundamental and application difficulties, are waiting to be resolved. For the electrolyte, it is prone to be attacked by intermediates (LiO2, O2, 1O2, O22–) and decomposed at high voltage, accompanying side reactions that will induce cathode passivation. For the lithium anode, it can be corroded severely by H2O and the side products, thus protection methods are urgently needed. As an integrated system, the realization of high-performance Li–air batteries requires the three components to be optimized simultaneously.

中文翻译:

锂空气电池:空气电化学和阳极稳定

开发高能量密度,低成本和安全的电池以促进技术创新和改变人类生活方式是现代社会的一个永久问题。然而,当前流行的锂离子电池的能量密度已经接近其极限,因此需要提出和研究其他具有更大功率的电池系统来指导这一革命。锂空气电池因其高能量密度(3500 Wh / kg)而成为下一代电池的候选者。在过去的20年中,来自世界各地的科学家合作见证了锂空气电池在电化学和材料工程领域的快速发展。尽管取得了这些进展,但对锂空气电池的研究仍处于起步阶段,并且存在许多瓶颈问题,包括基本和应用方面的困难,正在等待解决。对于电解质,它容易被中间体(LiO2,O 2 1 O 2,O 2 2–)并在高压下分解,伴随有会引起阴极钝化的副反应。对于锂阳极,它可能被H 2 O和副产物严重腐蚀,因此迫切需要保护方法。作为一个集成系统,高性能锂空气电池的实现需要同时优化三个组件。
更新日期:2021-02-02
down
wechat
bug