期刊
ADVANCED MATERIALS
卷 30, 期 7, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201705445
关键词
flexible power sources; lithium-ion batteries; metal nanowires; nonwoven fabrics; wearable devices
类别
资金
- MOE (BK21Plus:META), South Korea [10Z20130011057]
- MSIP (the Center for Advanced Soft-Electronics) [CASE-2015M3A6A5072945]
- MOTIE (Regional (KIAT)) [R0006515]
A crumply and highly flexible lithium-ion battery is realized by using microfiber mat electrodes in which the microfibers are wound or webbed with conductive nanowires. This electrode architecture guarantees extraordinary mechanical durability without any increase in resistance after folding 1000 times. Its areal energy density is easily controllable by the number of folded stacks of a piece of the electrode mat. Deformable lithium-ion batteries of lithium iron phosphate as cathode and lithium titanium oxide as anode at high areal capacity (3.2 mAh cm(-2)) are successfully operated without structural failure and performance loss, even after repeated crumpling and folding during charging and discharging.
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