Self-discharge in supercapacitors: Causes, effects and therapies: An overview

Y Wu, R Holze - Electrochemical Energy Technology, 2021 - degruyter.com
Self-discharge as an omnipresent and unwelcome feature of electrochemical storage
devices driven by fundamental forces is briefly introduced and put into perspective. Causes …

Ion-exchange separators suppressing self-discharge in polymeric supercapacitors

K Wang, L Yao, M Jahon, J Liu, M Gonzalez… - ACS Energy …, 2020 - ACS Publications
Supercapacitors offer superior cycle life and high power densities, but as energy storage
devices, they are limited by self-discharge processes manifested as large potential decay …

[HTML][HTML] Bio-inspired 3D-Printed supercapacitors for sustainable energy storage

C Mevada, J Tissari, VS Parihar, A Tewari… - Journal of Power …, 2024 - Elsevier
This study presents a significant enhancement of the electrochemical properties of
commercially available high-surface-area bare activated carbon (BAC) through the grafting …

Cyclic bending reliability and failure mechanism of printed biodegradable flexible supercapacitor on polymer substrate

Z Fu, M Hannula, A Jauho… - … Applied Materials & …, 2022 - ACS Publications
A flexible supercapacitor (SC) is an attractive energy storage device for powering low-power
sensors, since it can be built using only nontoxic and sustainable materials. In this study, the …

[HTML][HTML] Simplified exponential equivalent circuit models for prediction of printed supercapacitor's discharge behavior-Simulations and experiments

H Pourkheirollah, J Keskinen, M Mäntysalo… - Journal of Power …, 2023 - Elsevier
Although supercapacitors (SCs) are promising devices for energy storage systems due to
their high-power density and long lifecycle, they suffer from high leakage current and self …

[HTML][HTML] Current collectors for low resistance aqueous flexible printed supercapacitors

M Arvani, J Keskinen, D Lupo, M Honkanen - Journal of Energy Storage, 2020 - Elsevier
In this paper we propose various current collector alternatives to be used in flexible
supercapacitors with aqueous electrolyte when low equivalent series resistance (ESR) is …

[HTML][HTML] An improved exponential model for charge and discharge behavior of printed supercapacitor modules under varying load conditions

H Pourkheirollah, J Keskinen, M Mäntysalo… - Journal of Power …, 2022 - Elsevier
We report an improved and simple exponential model for the charging and discharging
behavior of series-connected modules of supercapacitors under varying load conditions and …

Performance, stability and operation voltage optimization of screen-printed aqueous supercapacitors

S Lehtimäki, A Railanmaa, J Keskinen, M Kujala… - Scientific reports, 2017 - nature.com
Harvesting micropower energy from the ambient environment requires an intermediate
energy storage, for which printed aqueous supercapacitors are well suited due to their low …

[HTML][HTML] Screen printed monolithic supercapacitor with talc and cellulose fiber separator

T Punkari, J Keskinen, A Kattainen, J Laakso… - Journal of Power …, 2024 - Elsevier
In this work, we demonstrate a fully screen printed supercapacitor (SC) with a monolithic
structure. The monolithic SCs were prepared by screen printing different SC layers on top of …

[HTML][HTML] Integration of fully printed and flexible organic electrolyte-based dual cell supercapacitor with energy supply platform for low power electronics

C Rokaya, J Keskinen, D Lupo - Journal of Energy Storage, 2022 - Elsevier
We report the fabrication of flexible, printed dual cell supercapacitors (DCSCs) and their
implementations in energy storage units providing peak power to portable devices. The use …