Folding paper-based lithium-ion batteries for higher areal energy densities.
Paper folding techniques are used in order to compact a Li-ion battery and increase its energy per footprint area. Full cells were prepared using Li4Ti5O12 and LiCoO2 powders deposited onto current collectors consisting of paper coated with carbon nanotubes. Folded cells showed higher areal capacities compared to the planar versions with a 5 × 5 cell folded using the Miura-ori pattern displaying a ~14× increase in areal energy density.
Materials Science and Engineering, School for Engineering of Matter, Transport and Energy, ‡Mechanical Engineering, School for Engineering of Matter, Transport and Energy, and §Electrical Engineering, School of Electrical, Computer and Energy Engineering, Arizona State University , Tempe, Arizona 85287, United States.
Qian
Q
Cheng
Zeming
Z
Song
Teng
T
Ma
Bethany B
BB
Smith
Rui
R
Tang
Hongyu
H
Yu
Hanqing
H
Jiang
Candace K
CK
Chan
D003035:Cobalt / Q000737:chemistry; D011211:Electric Power Supplies; D007477:Ions / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D014025:Titanium / Q000737:chemistry
D007477:Ions; D003035:Cobalt; D008094:Lithium; D014025:Titanium; D010100:Oxygen