期刊
NANO ENERGY
卷 71, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2020.104595
关键词
Li-CO2 battery; N,S-doped carbon nanotubes; Wearable electronics; Quasi-solidus battery; Superior stability
类别
资金
- NASA [NNX16AD48A]
- National Natural Science Foundation of China [11575084, 51602153]
- Funding of Jiangsu Innovation Program for Graduate Education [KYCX17_0250]
- Funding for Outstanding Doctoral Dissertation in NUAA [BCXJ17-09]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- ARC [DP 190103881, FL 190100126]
- NASA [NNX16AD48A, 906521] Funding Source: Federal RePORTER
Integrating CO2 utilization and renewable energy delivery/storage, the rechargeable Li-CO2 battery has been considered as a promising candidate for next-generation secondary batteries. However, high-performance catalyst(s) for efficient formation and decomposition of the discharge product, Li2CO3, are an imperative part of a Li-CO2 battery. The development of flexible Li-CO2 batteries extends their applications into compliant and wearable devices/systems, but at the same time imposes a big challenge for battery fabrication and lifetime enhancement. In this study, a rechargeable quasi-solidus flexible Li-CO2 battery was designed and fabricated using highly active N,S-doped carbon nanotubes (N,S-doped CNTs) as the cathode catalyst, and a smart polymer gel as the flexible electrolyte. This newly-developed flexible Li-CO2 battery exhibited a capacity as high as 23560 mAh g(-1) based on the catalyst mass and an ultra-long lifetime of up to 538 cycles with excellent mechanical flexibility. This work provides a platform for the design and development of high-performance flexible Li-CO2 batteries from low-cost, earth-abundant, carbon-based multifunctional cathode catalysts.
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