Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | e202500358 |
| Fachzeitschrift | Advanced Energy and Sustainability Research |
| Jahrgang | 7 |
| Ausgabenummer | 2 |
| Publikationsstatus | Veröffentlicht - 23 Feb. 2026 |
Abstract
Solid polymer electrolytes hold great promise for achieving improved processability and safety in solid-state lithium-ion batteries (LIBs); however, several inherent challenges arise from the use of polymers. One critical issue is the ultrahigh interfacial resistance between the cathode and electrolyte, which has emerged as a main research focus in recent years. In this study, a dual functional cathode (DFC) is developed by uniformly dispersing the cathode material (LiFePO4) into the polymer electrolyte poly(vinylidenfluorid-co-hexafluorpropylene):lithium bis(trifluoromethanesulfonyl)imide, resulting in a conformable lamella structure with embedded microspheres. Simultaneous enhancement of the interfacial contact and the ion transport efficiency is observed. Solid-state LIBs incorporating the proposed DFC demonstrate exceptional electrochemical performance at room temperature, exhibiting a high discharge capacity of 138 mAh g−1 at 1 C, along with an impressive capacity retention of over 80% after 250 cycles, all while preserving the intricate spherical structure. The discharge capacity reaches 98 mAh g−1 even at a high rate of 5 C. At an elevated temperature of 60 °C, a capacity retention of 80% is obtained after 500 cycles. Therefore, this work provides a simple but effective design concept for improving interfacial compatibility between the cathodes and polymer electrodes in solid-state LIBs.
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- Ökologie
- Umweltwissenschaften (insg.)
- Umweltwissenschaften (sonstige)
- Energie (insg.)
- Energieanlagenbau und Kraftwerkstechnik
- Umweltwissenschaften (insg.)
- Abfallwirtschaft und -entsorgung
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in: Advanced Energy and Sustainability Research, Jahrgang 7, Nr. 2, e202500358, 23.02.2026.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Poly(Vinylidene Fluoride)-Wrapped LiFePO4 Microspheres as Highly Stable Dual Functional Cathode for Solid-State Lithium Batteries
AU - Li, Taoran
AU - Bettels, Frederik
AU - Lin, Zhihua
AU - Satheesh, Sreeja K.
AU - Zhang, Chaofeng
AU - Liu, Yuping
AU - Ding, Fei
AU - Zhang, Lin
N1 - Publisher Copyright: © 2025 The Author(s). Advanced Energy and Sustainability Research published by Wiley-VCH GmbH.
PY - 2026/2/23
Y1 - 2026/2/23
N2 - Solid polymer electrolytes hold great promise for achieving improved processability and safety in solid-state lithium-ion batteries (LIBs); however, several inherent challenges arise from the use of polymers. One critical issue is the ultrahigh interfacial resistance between the cathode and electrolyte, which has emerged as a main research focus in recent years. In this study, a dual functional cathode (DFC) is developed by uniformly dispersing the cathode material (LiFePO4) into the polymer electrolyte poly(vinylidenfluorid-co-hexafluorpropylene):lithium bis(trifluoromethanesulfonyl)imide, resulting in a conformable lamella structure with embedded microspheres. Simultaneous enhancement of the interfacial contact and the ion transport efficiency is observed. Solid-state LIBs incorporating the proposed DFC demonstrate exceptional electrochemical performance at room temperature, exhibiting a high discharge capacity of 138 mAh g−1 at 1 C, along with an impressive capacity retention of over 80% after 250 cycles, all while preserving the intricate spherical structure. The discharge capacity reaches 98 mAh g−1 even at a high rate of 5 C. At an elevated temperature of 60 °C, a capacity retention of 80% is obtained after 500 cycles. Therefore, this work provides a simple but effective design concept for improving interfacial compatibility between the cathodes and polymer electrodes in solid-state LIBs.
AB - Solid polymer electrolytes hold great promise for achieving improved processability and safety in solid-state lithium-ion batteries (LIBs); however, several inherent challenges arise from the use of polymers. One critical issue is the ultrahigh interfacial resistance between the cathode and electrolyte, which has emerged as a main research focus in recent years. In this study, a dual functional cathode (DFC) is developed by uniformly dispersing the cathode material (LiFePO4) into the polymer electrolyte poly(vinylidenfluorid-co-hexafluorpropylene):lithium bis(trifluoromethanesulfonyl)imide, resulting in a conformable lamella structure with embedded microspheres. Simultaneous enhancement of the interfacial contact and the ion transport efficiency is observed. Solid-state LIBs incorporating the proposed DFC demonstrate exceptional electrochemical performance at room temperature, exhibiting a high discharge capacity of 138 mAh g−1 at 1 C, along with an impressive capacity retention of over 80% after 250 cycles, all while preserving the intricate spherical structure. The discharge capacity reaches 98 mAh g−1 even at a high rate of 5 C. At an elevated temperature of 60 °C, a capacity retention of 80% is obtained after 500 cycles. Therefore, this work provides a simple but effective design concept for improving interfacial compatibility between the cathodes and polymer electrodes in solid-state LIBs.
KW - dual functional cathode
KW - interfacial contact
KW - Lithium-ion batteries
KW - solid-state polymer electrolytes
UR - http://www.scopus.com/inward/record.url?scp=105019951990&partnerID=8YFLogxK
U2 - 10.1002/aesr.202500358
DO - 10.1002/aesr.202500358
M3 - Article
AN - SCOPUS:105019951990
VL - 7
JO - Advanced Energy and Sustainability Research
JF - Advanced Energy and Sustainability Research
IS - 2
M1 - e202500358
ER -