Based on a systematic investigation on aprotic Li-CO 2 electrochemistry, we design a flexible strategy for either CO 2 fixation or energy storage. Typically, CO 2 can be fixed into carbon species through a rechargeable/irreversible electrochemical process. Moreover, using a specific catalyst, the aprotic Li-CO 2 battery system can be realized via a reversible cycle. The proof of concept revealed in this study provides strong theoretical support for the practical design of both CO 2 fixation techniques and renewable energy storage devices.
Superoxide radicals are generated during the electrochemical decomposition of Li2CO3. The existence of superoxide radicals will lead to the degradation of the tetraglyme electrolyte.
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