In this section
@article{Zhao:2023:10.1038/s41467-023-42108-6,
author = {Zhao, Y},
doi = {10.1038/s41467-023-42108-6},
journal = {Nature Communications},
title = {Ampere-hour-scale soft-package potassium-ion hybrid capacitors enabling 6-minute fast-charging},
url = {http://dx.doi.org/10.1038/s41467-023-42108-6},
volume = {14},
year = {2023}
}
TY - JOUR
AB - Extreme fast charging of Ampere-hour (Ah)-scale electrochemical energy storage devices targeting charging times of less than 10 minutes are desired to increase widespread adoption. However, this metric is difficult to achieve in conventional Li-ion batteries due to their inherent reaction mechanism and safety hazards at high current densities. In this work, we report 1 Ah soft-package potassium-ion hybrid supercapacitors (PIHCs), which combine the merits of high-energy density of battery-type negative electrodes and high-power density of capacitor-type positive electrodes. The PIHC consists of a defect-rich, high specific surface area N-doped carbon nanotube-based positive electrode, MnO quantum dots inlaid spacing-expanded carbon nanotube-based negative electrode, carbonate-based non-aqueous electrolyte, and a binder- and current collector-free cell design. Through the optimization of the cell configuration, electrodes, and electrolyte, the full cells (1 Ah) exhibit a cell voltage up to 4.8 V, high full-cell level specific energy of 140 Wh kg−1 (based on the whole mass of device) with a full charge of 6 minutes. An 88% capacity retention after 200 cycles at 10 C (10 A) and a voltage retention of 99% at 25 ± 1 °C are also demonstrated.
AU - Zhao,Y
DO - 10.1038/s41467-023-42108-6
PY - 2023///
SN - 2041-1723
TI - Ampere-hour-scale soft-package potassium-ion hybrid capacitors enabling 6-minute fast-charging
T2 - Nature Communications
UR - http://dx.doi.org/10.1038/s41467-023-42108-6
UR - https://www.nature.com/articles/s41467-023-42108-6
UR - http://hdl.handle.net/10044/1/107059
VL - 14
ER -
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