Elucidation of the role of electrolyte nature on electrochemical performance of PANI in energy storage device

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00578602" target="_blank" >RIV/61389013:_____/24:00578602 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/24:10473036

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2352152X23030700?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352152X23030700?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.est.2023.109672" target="_blank" >10.1016/j.est.2023.109672</a>

Result language

angličtina

Original language name

Elucidation of the role of electrolyte nature on electrochemical performance of PANI in energy storage device

Original language description

To minimize the number of cells during the construction of a device, the working voltage of each cell must be as high as possible. Obtaining an aqueous electrolyte based electrochemical cell with high cell operating voltage is challenging due to the low standard reduction potential of water. The current work shows the effect of the nature and concentration of the electrolyte on the structure of water and its electrochemical stability. A symmetrical PANI cell was constructed in the presence of different electrolytes. It is demonstrated that utilizing ions with high solvation ability (chaotropic ions) and the formation of hydronium/Zundel ions enables the amount of free water to be reduced. As a result, there are no side reactions on the electrodes related to the electrolysis of water, and the main electrochemical reaction contributing to the cell capacity predominates. Moreover, by choosing the appropriate electrolyte it is possible to control the battery or capacitance-like behavior of PANI. The electrochemical performance of a symmetrical PANI cell shows a promising energy density of 7.5 Wh/kg at a power density of 150 kW/kg. The superior electrochemical performance (capacity) is retained after 50 cycles in a potential window of 5 V. It is interesting to highlight that, according to Raman spectroscopy, PANI maintains its chemical stability in a 5 V potential window.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/NU20-06-00424" target="_blank" >NU20-06-00424: Implantable sensors for early detection of infection and bacterial colonization</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Energy Storage

ISSN

2352-152X

e-ISSN

2352-1538

Volume of the periodical

76

Issue of the periodical within the volume

15 January

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

109672

UT code for WoS article

001124312100001

EID of the result in the Scopus database

2-s2.0-85177834968