Journal
ADVANCED SCIENCE
Volume 4, Issue 8, Pages -Publisher
WILEY
DOI: 10.1002/advs.201700072
Keywords
all-solid-state Na-ion battery; energy efficiency; long-life; pulsed output; triboelectric nanogenerator
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Funding
- National Science Foundation of China [51672029, 51372271, 21333007]
- Natural Science Foundation of Shanghai [14ZR1422100]
- National Key R&D Project from Ministry of Science and Technology, China [2016YFA0202702]
- Thousands Talents Program for the pioneer researcher and his innovation team in China
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Storing energy harvested by triboelectric nanogenerators (TENGs) from ambient mechanical motion is still a great challenge for achieving low-cost and environmental benign power sources. Here, an all-solid-state Na-ion battery with safe and durable performance used for efficient storing pulsed energy harvested by the TENG is demonstrated. The solid-state sodium-ion batteries are charged by galvanostatic mode and pulse mode with the TENG, respectively. The all-solid-state sodium-ion battery displays excellent cyclic performance up to 1000 cycles with a capacity retention of about 85% even at a high charge and discharge current density of 48 mA g(-1). When charged by the TENG, an energy conversion efficiency of 62.3% is demonstrated. The integration of TENGs with the safe and durable all-solid-state sodium-ion batteries is potential for providing more stable power output for self-powered systems.
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