TY - JOUR
T1 - Polymeric ionic liquid as binder
T2 - A promising strategy for enhancing Li–S battery performance
AU - Santiago, Alexander
AU - Robles-Fernández, Adrián
AU - Soria-Fernández, Asier
AU - Lopez-Morales, Jorge L.
AU - Castillo, Julen
AU - Fraile-Insagurbe, David
AU - Casado, Nerea
AU - Armand, Michel
AU - Garcia-Suarez, Eduardo J.
AU - Carriazo, Daniel
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/3/1
Y1 - 2024/3/1
N2 - The development of the most promising next-generation Li–S batteries with an improved cyclability is one of the greatest challenges nowadays. In this sense, here, a novel imidazolium-based polymeric ionic liquid (PVI10Cl) was successfully synthesized and integrated into a high-performing sulfur cathode. The lithium polysulfide trapping ability of PVI10Cl was confirmed, which helps to accelerate conversion kinetics. This synergetic effect leads to enhanced C-rate response, improving the discharge capacities and reducing the overpotentials even at 1C in comparison with conventional PVdF binder. These features also allow cells to be operated for 100 cycles with excellent capacity retention. All in one, while conventional binders are viewed only as a “glue” to hold the active material together, it has been shown that PVI10Cl binder has additional functions and plays an active role during Li–S battery operation.
AB - The development of the most promising next-generation Li–S batteries with an improved cyclability is one of the greatest challenges nowadays. In this sense, here, a novel imidazolium-based polymeric ionic liquid (PVI10Cl) was successfully synthesized and integrated into a high-performing sulfur cathode. The lithium polysulfide trapping ability of PVI10Cl was confirmed, which helps to accelerate conversion kinetics. This synergetic effect leads to enhanced C-rate response, improving the discharge capacities and reducing the overpotentials even at 1C in comparison with conventional PVdF binder. These features also allow cells to be operated for 100 cycles with excellent capacity retention. All in one, while conventional binders are viewed only as a “glue” to hold the active material together, it has been shown that PVI10Cl binder has additional functions and plays an active role during Li–S battery operation.
KW - Batteries
KW - Cathode development
KW - Lithium-sulfur
KW - Polymeric ionic liquid
KW - Polysulfide regulation
UR - https://www.scopus.com/pages/publications/85182023688
U2 - 10.1016/j.est.2023.110285
DO - 10.1016/j.est.2023.110285
M3 - Article
AN - SCOPUS:85182023688
SN - 2352-152X
VL - 80
JO - Journal of Energy Storage
JF - Journal of Energy Storage
M1 - 110285
ER -
