Local Strong Solvation Electrolyte Trade-Off between Capacity and Cycle Life of Li-O_2 Batteries

Lai Jingning; Liu Hanxiao; Xing YiZhao LiyuanShang YanxinHuang YongxinChen NanLi LiWu FengChen Renjie

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Local Strong Solvation Electrolyte Trade-Off between Capacity and Cycle Life of Li-O_2 Batteries

机译：Local Strong Solvation Electrolyte Trade-Off between Capacity and Cycle Life of Li-O_2 Batteries

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Li-O-2 batteries are promising energy storage devices with ultra-high theoretical energy density. However, in practice they show severe capacity fading and limited cycle life, meaning that more suitable electrolytes are urgently needed. Here, solvents are combined with high donor number and low donor number, and a Li salt to produce a new local strong solvation effect electrolyte. High discharge capacity and good cycling performance are achieved when the optimized electrolyte is used in a Li-O-2 battery. The optimized electrolyte inhibits side reactions within the battery and facilitates stable solid electrolyte interphase film formation on the surfaces of Li anode. This work opens a new route for the design of high-performance electrolytes to increase both capacity and cycle life of Li-O-2 batteries.

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来源
《Advanced functional materials》 |2021年第40期|2101831.1-2101831.7|共7页
作者
Lai Jingning; Liu Hanxiao; Xing YiZhao LiyuanShang YanxinHuang YongxinChen NanLi LiWu FengChen Renjie;
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Beijing Inst Technol, Beijing Key Lab Environm Sci, Beijing 100081, Peoples R China|Beijing Inst Technol, Engn Sch Mat Sci & Engn, Beijing 100081, Peoples R China;

Beijing Inst Technol, Beijing Key Lab Environm Sci, Beijing 100081, Peoples R China|Beijing Inst Technol, Engn Sch Mat Sci & Engn, Beijing 100081, Peoples R China|Beijing Inst Technol, Inst Adv Technol, Jinan 250300, Peoples R China;

Beijing Inst Technol, Beijing Key Lab Environm Sci, Beijing 100081, Peoples R China|Beijing Inst Technol, Engn Sch Mat Sci & Engn, Beijing 100081, Peoples R China|Beijing Inst Technol, Inst Adv Technol, Jinan 250300, Peoples R China|Collaborat Innovat Ctr;

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正文语种英语
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electrochemistry; electrolytes; Li-O; (2) batteries; solvent effects;

Local Strong Solvation Electrolyte Trade-Off between Capacity and Cycle Life of Li-O_2 Batteries

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