The search for viable end-uses of CO₂ has motivated considerable research into CO₂ utilization in energy storage devices such as alkali metal-based O₂/CO₂ and -CO₂ batteries. However, efforts have been stymied by the low electrochemical activity of CO₂ in most organic media. In this work, we report a mediated CO₂ capture and conversion process, based on amine (e.g., 2-ethoxyethylamine) chemisorption, which provides a new electrolyte system for facilitating the discharge reaction in Li-CO₂ batteries. Our results indicate that electrochemical reduction of CO₂-loaded amines proceeds at significantly higher discharge potentials (∼2.9 V versus Li/Li⁺) compared with physically dissolved CO₂, which is inactive in the amine's absence. The discharge reaction forms solid-phase Li₂CO₃ as the primary discharge product and yields high discharge capacities (>1,000 mAh/g_c), highlighting the coupling of CO₂ capture chemistry to nonaqueous batteries as a promising approach for the design and manipulation of CO₂ conversion reactions.

对CO的可行的最终用途的搜索₂已促使大量的研究成CO ₂的利用率在能量存储装置，例如碱金属-O ₂ / CO ₂和-CO ₂电池。然而，在大多数有机介质中，CO _2的电化学活性低已阻碍了人们的努力。在这项工作中，我们报告了一种基于胺（例如2-乙氧基乙胺）化学吸附的介导的CO ₂捕获和转化过程，该过程为促进Li-CO ₂电池的放电反应提供了一种新的电解质体系。我们的结果表明，CO _2的电化学还原与物理溶解的CO ₂相比，负载了胺的胺在明显更高的放​​电电势下（相对于Li / Li ⁺约为2.9 V ）进行放电，而在胺不存在的情况下，CO ₂是无活性的。放电反应形成固相Li ₂ CO ₃作为主要放电产物，并产生高放电容量（> 1,000 mAh / g _c），这突出表明了CO ₂捕集化学物质与非水电池的耦合是设计和操作的一种有前途的方法CO ₂转化反应。