当前位置: X-MOL 学术Joule › 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.)
Toward Reversible and Moisture-Tolerant Aprotic Lithium-Air Batteries
Joule ( IF 39.8 ) Pub Date : 2020-10-09 , DOI: 10.1016/j.joule.2020.09.021
Israel Temprano , Tao Liu , Enrico Petrucco , James H.J. Ellison , Gunwoo Kim , Erlendur Jónsson , Clare P. Grey

The development of moisture-tolerant, LiOH-based non-aqueous Li-O2 batteries is a promising route to bypass the inherent limitations caused by the instability of their typical discharge products, LiO2 and Li2O2. The use of the I/I3 redox couple to mediate the LiOH-based oxygen reduction and oxidation reactions has proven challenging due to the multiple reaction paths induced by the oxidation of I on cell charging. In this work, we introduce an ionic liquid to a glyme-based electrolyte containing LiI and water and demonstrate a reversible LiOH-based Li-O2 battery cycling that operates via a 4 e/O2 process with a low charging overpotential (below 3.5 V versus Li/Li+). The addition of the ionic liquid increases the oxidizing power of I3, shifting the charging mechanism from IO/IO3 formation to O2 evolution.



中文翻译:

向可逆和耐潮的非质子化锂空气电池

耐湿的基于LiOH的非水Li-O 2电池的开发是一种有希望的途径,可以绕过其典型放电产物LiO 2和Li 2 O 2的不稳定性所引起的固有局限性。使用我的- / I 3 -氧化还原电对介导基于将LiOH·氧还原和氧化反应已被证明具有挑战性,由于由I的氧化所引起的多反应路径-充电对细胞。在这项工作中,我们介绍的离子液体包含的LiI和水的基于甘醇二甲醚,电解质和展示出一种基于可逆的LiOH·李-O 2,其通过图4e操作电池循环-/ O 2工艺具有低充电过电势(相对于Li / Li +低于3.5 V )。加入的离子液体增加我的氧化能力3 - ,充电机构从IO移位- / IO 3 -形成与O 2演化。

更新日期:2020-11-18
down
wechat
bug