《Poly(vinylene carbonate)-Based Composite Polymer Electrolyte with Enhanced Interfacial Stability To Realize High-Performance Room-Temperature Solid-State Sodium Batteries》 was written by Chen, Suli; Che, Haiying; Feng, Fan; Liao, Jianping; Wang, Hong; Yin, Yimei; Ma, Zi-Feng. Category: esters-buliding-blocksThis research focused onvinylene carbonate composite polymer electrolyte rechargeable sodium battery safety; composite polymer electrolyte; high ionic conductivity; in situ solidification; interfacial stability; poly(vinylene carbonate); solid-state sodium batteries. The article conveys some information:
Solid-state rechargeable batteries using polymer electrolytes have been considered, which can avoid safety issues and enhance energy d. However, com. application of the polymer electrolyte solid-state battery is still significantly limited by the low room-temperature ionic conductivity, poor mech. properties, and weak interfacial compatibility between the electrolyte and electrode, especially for the room-temperature solid-state rechargeable battery. In this work, a poly(vinylene carbonate)-based composite polymer electrolyte (PVC-CPE) is reported for the first time to realize room-temperature solid-state sodium batteries with high performances. This in situ solidified PVC-CPE possesses superior ionic conductivity (0.12 mS cm-1 at 25°), high Na+ transference number of 0.60, as well as enhanced electrode/electrolyte interfacial stability. Notably, the composite cathode NaNi1/3Fe1/3Mn1/3O2 (c-NFM) is designed through the in situ growth of the polymer electrolyte inside the electrode to decrease interfacial resistance and facilitate effective ion transport in electrode/electrolyte interfaces. It is demonstrated that the solid-state c-NFM/PVC-CPE/Na battery assembled by a one-step in situ solidification method exhibits remarkably enhanced cell performances at room temperature compared with a reference NFM/PVC-CPE/Na assembled through a conventional ex situ method. The battery presents a high initial specific capacity of 104.2 mA h g-1 at 0.2 C with a capacity retention of 86.8% over 250 cycles and ∼80.2 mA h g-1 at 1 C. This study suggests that PVC-CPE is a very promising electrolyte for solid-state sodium batteries. This study also suggests a new method to design high-performance polymer electrolytes for other solid-state rechargeable batteries to realize high safety and considerable electrochem. performance at room temperature In addition to this study using Vinylene carbonate, there are many other studies that have used Vinylene carbonate(cas: 872-36-6Category: esters-buliding-blocks) was used in this study.
Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics